SY/T 10013-1998 Guidelines for feasibility evaluation of offshore sandstone gas field development
Some standard content:
[CS 75.020
Registration No.: 1887—1998
People's Republic of China Offshore Oil and Gas Industry Standard SY/T10013—1998
Offshore Sandstone Gas Field
Guide to the Feasible Evaluationfor Offshore Sandstone Gas Field Development1998—06-07Published
China National Offshore Oil Corporation
1998—10-01Implementation
SY/T 10013—1998
Policy Statement
1 Specification
Introduction to the Standard
3 Evaluation Procedure
4 Division of Evaluation Stages
5 Technical Requirements for Feasibility Evaluation
Technical Requirements for Feasibility Evaluation of Development Projects
Submission to the Company
SY/F10013—1998
This standard is specially formulated to make scientific decisions on offshore gas development, strengthen top management, reduce development technical risks, improve the economic benefits of gas development, straighten out the relationship between equipment and materials, and establish a normal procedure for feasibility evaluation of gas development. In the public standard, the main technical indicators of gas reservoir engineering at each evaluation stage are formulated based on the practice of oil and gas exploration and development in my country for many years and with reference to the relevant contents of feasibility evaluation reports at home and abroad. This standard specifies the technical requirements for development feasibility evaluation and the main contents of the development report, and makes unified provisions for future development feasibility evaluation:
This standard has been implemented since October 1, 1998. Since April 1, 1999, all drafts of offshore sandstone gas development feasibility evaluation reports submitted for approval have been in compliance with the provisions of this standard.
This standard was proposed by China National Offshore Oil Corporation and was drafted by the Oilfield Development Department of China National Offshore Oil Corporation South Lixi West Company.
This standard was drafted by Cheng Shengjing,
This standard was drafted by Wang Chuan, ...
Offshore oil and gas industry standards publications do not assume any responsibility for users, manufacturers or suppliers to provide advance notice and training on health, safety and hazard prevention for their employees and other on-site operators, nor do they assume any responsibility under national and local regulations. The content of any offshore oil and gas industry standards publication shall not be interpreted, implicitly or otherwise, as granting any right to manufacture, sell or use any method, equipment or product involved in patent rights, nor shall it assume any liability for any person who infringes patent rights. Generally, offshore oil and gas industry standards are reviewed and revised, or re-identified or revoked at least every five years. Sometimes, this review cycle can be extended by one year, but not more than two years. Therefore, the publication is valid for no more than five years from the date of publication, unless an extension of validity is authorized. The status of publications can be obtained from the Secretariat of the Offshore Oil and Gas Industry Standardization Technical Committee (Tel. 01064610022-7875, mailing address: Standardization Office, Offshore Oil Production Research Center, Box 235, Beijing, 101149) or the Offshore Oil and Gas Industry Standardization Technical Committee (Tel. 010-64665361, mailing address: Offshore Oil Science and Technology Office, 25th Floor, Dongjingxin Building, Eryuanqiao, Beijing, 100027).
The purpose of publishing offshore oil and gas industry standards is to promote proven and good engineering techniques and operating practices. It is not intended to eliminate the need to make correct judgments on when and where to apply these techniques and practices. The formulation and publication of offshore oil and gas industry standards are not intended to restrict anyone from adopting any other techniques and practices in any way. This standard is available for use by anyone who wishes to adopt it. The Offshore Oil and Gas Industry Standardization Technical Committee and its authorized issuing units have made unremitting efforts to ensure the accuracy and reliability of the data contained therein. However, the Offshore Oil and Gas Industry Standardization Technical Committee and its authorized issuing units do not represent, guarantee or warrant the standards they publish, and hereby expressly state that they do not assume any obligation or responsibility for the loss or damage caused by the use of these standards, the use of standards that may conflict with any national and local regulations, and the consequences of infringement of any patent rights caused by the use of these standards.
Offshore Oil and Gas Industry Standards of the People's Republic of China Guide of the Feasible Evaluation for Offshore Sandstone Gas Field Development This standard specifies the technical requirements for the feasibility evaluation of offshore sandstone gas field development. SY/T10013-1998
This standard is applicable to the early evaluation and development feasibility evaluation of offshore sandstone gas fields after the exploration or evaluation wells obtain natural gas flow, and other types of offshore gas fields can be used as a reference.
2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. At the time of publication of the standard, the versions shown are all valid. All standards are subject to revision. Parties using this standard should explore the possibility of using the latest version of the following standards. GBn270—87 Natural Gas Reserves Specifications
SY5615—93 Petroleum and Natural Gas Geological Mapping Specifications and DiagramsSY/T5895-93 Common Quantities and Units in the Petroleum Industry 3 Evaluation Procedures
Exploration and Development Section
Offshore sandstone gas field development feasibility evaluation procedure is shown in Figure 1. Natural gas flow is discovered in exploration wells or evaluation wells
Early development evaluation
Is there development prospect
Drilling evaluation wells and reinforcing seismic network
Development feasibility evaluation
Is there development value
Data is sufficient
Interim report of proven reserves
Figure 1 Evaluation procedure flowchart
China National Offshore Oil Corporation1998-06-07Approved on 1998-10-0 1 Implementation
4 Division of evaluation stages
SY/T10013-1998
The evaluation of offshore sandstone gas mountains is divided into two stages: early evaluation and development feasibility evaluation. The principle and basis of the division mainly depend on the degree of understanding of the geology of the gas reservoir.
4.1 Early evaluation
4.1.1 Degree of geological understanding
The morphology of the structural trap has been basically identified through seismic analysis, and the exploration wells have been evaluated and the gas flow has been confirmed. We have a preliminary understanding of the lithology and fluid properties of the pay zone, and have inferred the gas-bearing area, driving type, and oil, gas, and water interfaces. We have obtained some reserve calculation parameters, including: a) 3D seismic line density of not less than 2kmx2km, and 1:50,000 seismic depth structure map of each major reflector layer; b) Core and analytical test data in the gas layer; c) Well logging data, oil, gas, and water layer interpretation results, and reservoir parameters (such as porosity, permeability, water saturation, etc.) have been obtained; d) Single layer test data have been obtained:
4.1.2 Early evaluation requirements
4.1.2.1 The early development evaluation should be completed in accordance with the early evaluation technical requirements in Chapter 5 of this standard to provide a policy basis for further evaluation. 4.1.2.2 Calculate and predict the reservoir and energy evaluation. 4.1.2.3 The evaluation level is macro qualitative analysis. 4.2 Feasibility evaluation
4.2.1 Geological understanding level
The trap conditions are basically clear, among which the structural highs and major faults have been explored. The gas reservoir type and the distribution characteristics of oil, gas and water have been clarified. The gas-bearing area is basically controlled; the reservoir type and lithofacies changes of the gas layer are basically clear: the reserve calculation parameters are basically reliable, and the gas layer physical properties, gas production capacity and fluid properties are obtained, including:
a) The density of one-dimensional geological survey lines is not less than 2km×2km or L. Three-dimensional geological survey is made and submitted at 1:25,000 (if the closed area is greater than 30km2, 1:50.000 can be used) The top and bottom depth structural map of each gas layer and the isopach map of the gas-bearing layer; b) The main gas layers of the drilled evaluation wells should have systematic sampling c) All the data of porosity, saturation series and other parts of the test piece have been obtained, including the electrical test interpretation results of oil, gas and water layers and the parameters of gas layer porosity, gas saturation and effective thickness, whose reliability is confirmed by the data and test data; 4.2.2 Evaluation requirements
4.2.2.1 When adding evaluation wells or seismic lines, such as obtaining reprocessed seismic data, a round of re-evaluation must be carried out. 4.2.2.2. Conduct a comprehensive and systematic study and analysis of the gas reservoir geology and gas reservoir process. The evaluation level should range from qualitative to quantitative. 4.2.2.3 It should be determined whether it is worth developing. 4.2.2.4 It is required to calculate the proven and controlled reserves, and preliminarily calculate the recoverable reserves, so as to provide a reliable geological basis for the formulation of development plans. 5. Technical requirements for early evaluation
5.1 Gas reservoir evaluation
5.1.1 Geographical location (including longitude, latitude, coordinates, and distance and direction to the nearest important city) Location: Main environmental conditions (including: water depth, sea conditions, weather, upstream geology, etc.) 5.1.2 Brief description of regional geological background.
5.1.3 Geological description of gas reservoir
5.1.3.1 Structure
Includes the following contents: a) Trap morphology, including closure area, closure height, dip angle; b) Trap type, including anticline, fault anticline (fault), fault block or finger-shaped, etc.; d) Fault system, including main fault distribution, fault distance, fault location, fault closure, etc. 2
5.1.3.2 Reservoir
also includes the following contents:
a) Production unit group classification:
) Layer distribution:
SY/T 10013-1998
Core) Key features of reservoir, including reservoir structure, reservoir type, storage properties (porosity, permeability) and thickness, etc. 5.1.4 Fluid
5.1.4.1 Distribution of fluid in the vertical direction.
5.1.4.2 Fluid separation, physical and chemical properties 5.1.5 Pressure and temperature
5.1.5.1 Organize the data of repeated formation test (RFT or MFT) and drill stem test (IST), draw the relationship between altitude depth and pressure, and determine the oil line of steam! 5.1.5.2 Determine the depth above sea level and the positive force curve according to the RFI (or MF1) LST data, the electrical curve and the geomorphic interpretation data to determine the water, gas-oil and water-wetting interface. 5.1.6 Reservoir classification. 5.1.7 Reserve estimation. According to the GB127 standard, the volumetric method is used to estimate the geological reserves of gas reservoirs. 5.1.8 The idea of developing a small area. 5.1.8.1 Development principle: Ensure that the downstream process obtains a relatively long-term stable supply (, consider the instability of gas consumption and the utilization rate of the support, and the plan has peak regulation capacity (Section 1.2.5), and make the best use of resources and follow the economic rules as the guiding principle for development. 5.1.8.2 Development method: f-gas reservoir formation adopts depletion production: The development method should be determined based on the comprehensive economic benefit criteria of condensate oil content and reserves.
5.1.8.3 Development system: The same-layer system with a unified-gas-water interface and relatively fine-physical and fluid properties is divided into a piece of development system. ; Gas-bearing layers of different systems must be comprehensively studied from the perspective of production and production effect to formulate their development system planning. 5.1.8.4 Accurately determine the gas production capacity. Data: 1) Arrange the data of each test layer, and calculate the production capacity equation and continuous flow by single-line and exponential methods respectively. 2) Estimate the flow rate of each section. 5.1.8.5 Production speed: Select the gas production speed according to the estimated geological reserves. 5.1.8.6 Development and grid connection: Preliminarily determine the layout, well method, spacing, and utilization of the estimated geological reserves. 5.1. 8.7 Select the waste production of single-phase H
5.1.8.8 Select the (hidden abandoned pressure.
5.1.8.9 Looseness measurement: According to the development layer system, gas production rate, single and double production capacity, distance, position, number of pieces, and color yield defined by the determined development method, a relatively simple mathematical model, such as material balance method, is used to make a preliminary estimate of the program indicators. When conditions are met, numerical simulation can be used for prediction
5.1.9 Recommend the best evaluation plan
5.21 Project evaluation
5.2.1 Overview
5.2.1.1 5.1.1
5.2.1.2 Natural gas market survey, [Brief description of project facilities and main cost structure 5.2.2 Drilling and demolition, completion method, required quantity description 5.2.31 Brief description of proposed plan: The selection basis of the project plan should be explained. Plan screening and recommended plan. 5.2.4 Brief description of main facilities
5.2.4.1 Offshore platform and underwater equipment.
SY/T10013—1998
5.2.4.2 Submarine pipeline, including pipe diameter, gas transmission capacity, gas transmission pressure, pipeline route and length, etc. 5.2.4.3 Onshore terminal, including offshore terminal and its supporting facilities. 5.2.4.4 Onshore pipeline, including onshore pipeline route, length, etc. 5.3, Economic evaluation
5.3.1 Estimation of total investment cost for gas field development
5.3.1.1 Exploration cost.
5.3.1.2 Development costs, including drilling and completion, offshore platforms, submarine pipelines, submarine cables, onshore pipelines, onshore terminals, off-site projects, pre-production personnel training fees and production preparation fees, etc.
5.3.2 Annual operating costs.
5.3.3 Main evaluation parameters
Including taxes, tax rates, gas prices, inflation rates, exchange rates, loan interest rates, etc. 5.3.4 Economic evaluation results.
5.3.5 Conclusion.
5.4 Evaluation conclusions and suggestions
5.4.1 Conclusion.
5.4.2 Suggestions
Based on the early evaluation results, further specific deployment suggestions are put forward for valuable gas-bearing structures. The main contents should include: a) Propose whether to increase the density of seismic survey lines, conduct three-dimensional seismic or high-resolution seismic acquisition, and propose special processing requirements for seismic data for specific geological problems; b) Propose the number and location of evaluation wells; c) Propose the requirements for the collection of data such as drilling, coring, logging testing, and sampling of evaluation wells; d) Propose further requirements for the collection and collation of environmental condition data. 5.5 Main drawings and basic data tables 5.5.1 Main drawings should include: a) Schematic diagram of gas field location b) Comprehensive columnar diagram of gas layers c) Deep diagram of top and bottom structures of gas layers d) Vertical and horizontal sections of gas layers e) Gas-bearing area diagram f) Binomial and exponential production of gas wells energy curve; g) evaluation well location deployment diagram;
h) engineering scheme layout diagram;
i) scheme indicator prediction curve
5.5.2 Basic data table
should include:
a) drilling results and coring statistics table;
b) structural fault element data table;
c) stratigraphic stratification data table;
d) test data results table;
e) logging interpretation results summary table;
f) repeated formation test (RFT or MFT) data table; 4
g) oil, gas and water analysis results table;
h) predicted reserves summary table;
i) production indicator prediction summary table;
i) economic indicator summary table;
k) investment summary table.
6 Technical requirements for development feasibility evaluation
6.1 Gas reservoir evaluation
6.1.1 Geographic location and environmental conditions
Same as 5.1.1.
6.1.2 Description of regional geological background.
6.1.3 Gas reservoir geology
6.1.3.1 Trap structure
Should include the following contents:
SY/T10013—1998
a) Trap morphology, a 1:25,000 (1:50.000 can be used for a trap area greater than 30km2) reservoir top and bottom depth structure map should be made, and the closure area, closure height, dip angle, etc. should be confirmed; b) Trap type and conditions, such as anticline, fault anticline (fault nose), fault block, lithology, stratigraphic overlap, fold, etc.; c) Fault system, including fault properties, occurrence, fault distance, and fault closure. 6.1.3.2 Reservoir
Mainly includes the following contents:
a) Layer group division, including gas-bearing layer group and small layer division; b) Lithology, including the name of each layer, mineral composition, cement composition and content, cementation type, cementation degree, etc.; e) Thickness and occurrence, including total thickness, single layer thickness, number of layers, thin layer, block, interlayer, etc.; d) Distribution, including continuity and stability of each layer; e) Interlayer, including lithology, thickness, stability, permeability and expansion, etc.; f) Sedimentary phase analysis, clarifying type and distribution g) Reservoir space type;
h) Pore structure, including pore radius pore throat distribution, pore throat ratio capillary pressure curve, etc.; 1) Porosity, including total porosity and effective porosity of each layer; i) Permeability, including absolute permeability, effective permeability, horizontal permeability, vertical permeability, etc. of each layer. 6.1.4 Fluids
6.1.4.1 Fluid distribution and controlling factors
Includes:
a) Oil, gas and water interfaces in each layer;
b) The occurrence and thickness of the oil, gas and water transition zone; c) Geological factors controlling the distribution of oil, gas and water. 6.1.4.2 Fluid properties
Includes:
a) Gas components, distribution and controlling factors;
b) Oil, gas and water components;
c) Phase analysis;
d) Fluid properties and types.
6.1.5 Physical characteristics of seepage in gas reservoirs
6.1.5.1 Pressure
6.1.5.2 Relative permeability of water
6.1.6 Aperture
SY/110013-1998
6.1.6.1 Study the relationship between depth and pressure, determine the pressure gradient in the middle of each gas layer, the pressure coefficient, oil, and water interface, etc. 6.1.6.2 Study the relationship between depth and temperature, determine the temperature and geothermal gradient in the middle of the valley layer, 6.1.7 DeFeli drive type,
6.1.8 Geological reserve calculation
According to the provisions of (Qie 2701, calculate the gas 6.1.9 Preliminary development plan 6.1.9.1 Development plan. Same as 5.1.8.1. 6.1.9.2 Development method, 5.1, 8.2. 6.1.9.3 Concurrent strata, same as 5.1.8.3. 6.1.9.4 Confirm the well core energy position: 1. Determine the energy equation and open flow rate of each user by term and exponential method. 6.1.9.5 Development speed: depends on the resource allocation and supply and demand relationship. 6.1.9.6 Development network: explain the principles and methods of well layout, well spacing, number and dynamic geological reserves: 6.1.9.7 Determine the abandoned production of single return and gas space. 6.1.9.8 Determine the reservoir pressure.
6.1.9.9 Development Index Prediction
Includes the following contents:
Build geological model and select corresponding numerical simulation software: 1: Simulate positive parameters. Including natural gas reservoir top and bottom depth structure map, layered sand layer thickness map, layered porosity isovalue map, layered permeability value map, medium pipe: small line layered relative permeability line layered geophysical layered formation temperature, layered fluid physical property signature number to obtain rock physical parameters, single liter base data and non-fluid property parameters: simulated point gas reservoir geological reserves or gas reservoir dynamic geological reserves: according to the requirements of the scheme design, such as all original geological reserves are involved in the scheme index calculation. Fitting original geological reserves: in the scheme design, only part of the reserves (called producing reserves) are used to participate in the case index calculation! ! Fitting this part of reserves:
d: Calculate the program indicators under various situations 6.1.9.10 Development indicator sensitivity extension
Consider the influence of the following factors on the case indicators;
Date socks people small;
5 Permeability size
) Change of the ratio of horizontal permeability and oxygen grass permeability; Process:
e Distribution support, mining reverse health:
[Condensate micro-development method
6.1.10 Recommend the optimal development method
6.21 Evaluation
6.2.1 Overview
6.2.1.1 Ground cover and environmental conditions are the same as 5.1.1: 6, 2,! 2. The location and quality of natural gas transportation: description of process facilities and ten key conclusions, 6.2.2 Drilling and completion
SY/T10013—1998
6.2.2.1 Drilling methods, including pre-drilling, platform drilling and drilling rig types, etc. 6.2.2.2 Drilling technology, including drill bit sequence, pipe type, casing sequence, mud selection, drilling support cycle, etc. 6.2.2.3 Completion methods.
6.2.2.4 Completion facility configuration.
6.2.3 Development 1. Brief description of the project plan
The selection basis, plan screening and recommended plan of the project plan should be briefly described. 6.2.3.1 Main production facilities
a) Offshore platform and underwater equipment;
b) Submarine pipeline. Including platform and shore route, length, pipe diameter, wall thickness, gas transmission capacity, gas transmission pressure, gas transmission temperature, pipeline corrosion protection, submarine cable, etc.:
:) Attached pipeline, including pipeline route, length, pipe diameter, wall thickness, gas transmission capacity, gas transmission pressure and its supporting facilities; d) Onshore facilities, including onshore terminal and its supporting facilities; d) Oil and gas separation system and natural gas processing system. 6.2.3.2 The main supporting facilities and public systems of offshore platforms mainly include:
a) Living supporting facilities;
b) Power supply and water supply;
e) Communication;
d) Transportation.
6.2.3.3 Other facilities
Includes:
a) Safety system:
b) Protection facilities:
) Instrument and control system,
6.3 Economic evaluation
6.3.1 Investment estimation
6.3.1.1 Project overview.
6.3.1.2 Investment estimation principles
6.3.1.3 Investment estimation basis
Exploration investment:
6.3.1.5 Development investment
Virtual includes:
) Drilling and completion fees:
b) Platform fees;
) Subsea equipment fees;
d) Subsea pipeline fees:
) Subsea cable fees;
f) Onshore pipeline fees:
) Onshore terminal and off-site engineering fees:
h) Personnel training fees and production preparation fees.
6.3.2 Annual operating costs
6.3.3 Economic evaluation
6.3.3.1 Economic evaluation model.
SY/T10013—1998
6.3.3.2 The main evaluation parameters shall include taxes, tax rates, gas prices and their rising rates, inflation rates, loan interest rates, exchange rates, etc. 6.3.3.3 Calculation of economic indicators.
6.3.3.4 Conclusion of economic evaluation
6.3.4 Recommended plan.
6.3.5 Sensitivity analysis.
6.3.6 Conclusion.
6.4 Conclusion and suggestions for evaluation
6.4.1 Conclusion.
6.4.2 Suggestions
Suggestions for gas fields with development value shall include: a) Further evaluation requirements and solutions to doubtful geological problems; b) Environmental adjustment suggestions;
c) Market development suggestions.
6.5 Main maps and basic data tables
6.5.1 Main maps
Includes:
a) Schematic diagram of gas field location:
b) Comprehensive columnar diagram of gas layers
c) Top and bottom structural depth diagram of gas layers
d) Vertical and horizontal sections of gas layers
e) Relationship diagram between gas reservoir pressure, temperature and altitude depth;f) Gas layer thickness diagram:
g) Porosity and permeability contour diagram of gas layer layers;h) Classification distribution diagram of reserve calculation, including reservoir production range diagram, cap layer distribution diagram and interlayer distribution diagram;i) Frequency distribution diagram of gas layer physical properties:||t t||j) Capillary pressure curve
k) Gas and water relative permeability curve:
1) Fluid phase analysis diagram;
m) Development well location and digital model grid
n) Development plan index prediction curve:
) Engineering plan layout diagram, including:
1) Engineering plan system diagram;
2) Offshore platform main process flow chart:
3) Offshore platform facility layout diagram
4) Onshore terminal main process flow chart;
5) Onshore terminal facility general plan,
p) Economic evaluation curve and sensitivity analysis diagram. 6.5.2 Basic data table
Includes:
a) Drilling results and coring statistics table;
b) Stratigraphic stratification data table;1 Study the relationship between depth and geothermal system, determine the pressure gradient and geothermal coefficient in the middle of each gas layer, oil, water interface, etc. 6.1.6.2 Study the relationship between depth and temperature, determine the temperature and geothermal gradient in the middle of the valley layer, 6.1.7 DeFeli drive type,
6.1.8 Geological reserve calculation
According to the provisions of (Qie 2701, calculate the geological reserves of the gas reservoir and determine the reserve level 6.1.9 Initial use treatment plan
6.1.9.1 Development original purchase. Same as 5.18.1| |tt||6.1.9.2# Development method, 5.1, 8.2
6.1.9.3 Concurrent layer system, 5.1.8.3
6.1.9.4 Confirm the well core energy
location:
) The data of each test layer. Calculate the production capacity equation and open flow rate by term and exponential method respectively: 1 Determine the energy equation and open flow rate of each user
6.1.9.5 Development speed: Depends on the resource allocation and supply and demand relationship. 6, 1.9.6 Development network: The principle of well layout, layout method, well spacing, number and dynamic geological reserves should be explained: 6.1.9.7 Determine the abandoned production of single return and gas space. 6.1.9.8 Determine the reservoir pressure.
6.1.9.9 Development Index Prediction
Includes the following contents:
Build geological model and select corresponding numerical simulation software: 1: Simulate positive parameters. Including natural gas reservoir top and bottom depth structure map, layered sand layer thickness map, layered porosity isovalue map, layered permeability value map, medium pipe: small line layered relative permeability line layered geophysical layered formation temperature, layered fluid physical property signature number to obtain rock physical parameters, single liter base data and non-fluid property parameters: simulated point gas reservoir geological reserves or gas reservoir dynamic geological reserves: according to the requirements of the scheme design, such as all original geological reserves are involved in the scheme index calculation. Fitting original geological reserves: in the scheme design, only part of the reserves (called producing reserves) are used to participate in the case index calculation! ! Fitting this part of reserves:
d: Calculate the program indicators under various situations 6.1.9.10 Development indicator sensitivity extension
Consider the influence of the following factors on the case indicators;
Date socks people small;
5 Permeability size
) Change of the ratio of horizontal permeability and oxygen grass permeability; Process:
e Distribution support, mining reverse health:
[Condensate micro-development method
6.1.10 Recommend the optimal development method
6.21 Evaluation
6.2.1 Overview
6.2.1.1 Ground cover and environmental conditions are the same as 5.1.1: 6, 2,! 2. The location and quality of natural gas transportation: description of process facilities and ten key conclusions, 6.2.2 Drilling and completion
SY/T10013—1998
6.2.2.1 Drilling methods, including pre-drilling, platform drilling and drilling rig types, etc. 6.2.2.2 Drilling technology, including drill bit sequence, pipe type, casing sequence, mud selection, drilling support cycle, etc. 6.2.2.3 Completion methods.
6.2.2.4 Completion facility configuration.
6.2.3 Development 1. Brief description of the project plan
The selection basis, plan screening and recommended plan of the project plan should be briefly described. 6.2.3.1 Main production facilities
a) Offshore platform and underwater equipment;
b) Submarine pipeline. Including platform and shore route, length, pipe diameter, wall thickness, gas transmission capacity, gas transmission pressure, gas transmission temperature, pipeline corrosion protection, submarine cable, etc.:
:) Attached pipeline, including pipeline route, length, pipe diameter, wall thickness, gas transmission capacity, gas transmission pressure and its supporting facilities; d) Onshore facilities, including onshore terminal and its supporting facilities; d) Oil and gas separation system and natural gas processing system. 6.2.3.2 The main supporting facilities and public systems of offshore platforms mainly include:
a) Living supporting facilities;
b) Power supply and water supply;
e) Communication;
d) Transportation.
6.2.3.3 Other facilities
Includes:
a) Safety system:
b) Protection facilities:
) Instrument and control system,
6.3 Economic evaluation
6.3.1 Investment estimation
6.3.1.1 Project overview.
6.3.1.2 Investment estimation principles
6.3.1.3 Investment estimation basis
Exploration investment:
6.3.1.5 Development investment
Virtual includes:
) Drilling and completion fees:
b) Platform fees;
) Subsea equipment fees;
d) Subsea pipeline fees:
) Subsea cable fees;
f) Onshore pipeline fees:
) Onshore terminal and off-site engineering fees:
h) Personnel training fees and production preparation fees.
6.3.2 Annual operating costs
6.3.3 Economic evaluation
6.3.3.1 Economic evaluation model.
SY/T10013—1998
6.3.3.2 The main evaluation parameters shall include taxes, tax rates, gas prices and their rising rates, inflation rates, loan interest rates, exchange rates, etc. 6.3.3.3 Calculation of economic indicators.
6.3.3.4 Conclusion of economic evaluation
6.3.4 Recommended plan.
6.3.5 Sensitivity analysis.
6.3.6 Conclusion.
6.4 Conclusion and suggestions for evaluation
6.4.1 Conclusion.
6.4.2 Suggestions
Suggestions for gas fields with development value shall include: a) Further evaluation requirements and solutions to doubtful geological problems; b) Environmental adjustment suggestions;
c) Market development suggestions.
6.5 Main maps and basic data tables
6.5.1 Main maps
Includes:
a) Schematic diagram of gas field location:
b) Comprehensive columnar diagram of gas layers
c) Top and bottom structural depth diagram of gas layers
d) Vertical and horizontal sections of gas layers
e) Relationship diagram between gas reservoir pressure, temperature and altitude depth;f) Gas layer thickness diagram:
g) Porosity and permeability contour diagram of gas layer layers;h) Classification distribution diagram of reserve calculation, including reservoir production range diagram, cap layer distribution diagram and interlayer distribution diagram;i) Frequency distribution diagram of gas layer physical properties:||t t||j) Capillary pressure curve
k) Gas and water relative permeability curve:
1) Fluid phase analysis diagram;
m) Development well location and digital model grid
n) Development plan index prediction curve:
) Engineering plan layout diagram, including:
1) Engineering plan system diagram;
2) Offshore platform main process flow chart:
3) Offshore platform facility layout diagram
4) Onshore terminal main process flow chart;
5) Onshore terminal facility general plan,
p) Economic evaluation curve and sensitivity analysis diagram. 6.5.2 Basic data table
Includes:
a) Drilling results and coring statistics table;
b) Stratigraphic stratification data table;1 Study the relationship between depth and geothermal system, determine the pressure gradient and geothermal coefficient in the middle of each gas layer, oil, water interface, etc. 6.1.6.2 Study the relationship between depth and temperature, determine the temperature and geothermal gradient in the middle of the valley layer, 6.1.7 DeFeli drive type,
6.1.8 Geological reserve calculation
According to the provisions of (Qie 2701, calculate the geological reserves of the gas reservoir and determine the reserve level 6.1.9 Initial use treatment plan
6.1.9.1 Development original purchase. Same as 5.18.1| |tt||6.1.9.2# Development method, 5.1, 8.2
6.1.9.3 Concurrent layer system, 5.1.8.3
6.1.9.4 Confirm the well core energy
location:
) The data of each test layer. Calculate the production capacity equation and open flow rate by term and exponential method respectively: 1 Determine the energy equation and open flow rate of each user
6.1.9.5 Development speed: Depends on the resource allocation and supply and demand relationship. 6, 1.9.6 Development network: The principle of well layout, layout method, well spacing, number and dynamic geological reserves should be explained: 6.1.9.7 Determine the abandoned production of single return and gas space. 6.1.9.8 Determine the reservoir pressure.
6.1.9.9 Development Index PredictionbZxz.net
Includes the following contents:
Build geological model and select corresponding numerical simulation software: 1: Simulate positive parameters. Including natural gas reservoir top and bottom depth structure map, layered sand layer thickness map, layered porosity isovalue map, layered permeability value map, medium pipe: small line layered relative permeability line layered geophysical layered formation temperature, layered fluid physical property signature number to obtain rock physical parameters, single liter base data and non-fluid property parameters: simulated point gas reservoir geological reserves or gas reservoir dynamic geological reserves: according to the requirements of the scheme design, such as all original geological reserves are involved in the scheme index calculation. Fitting original geological reserves: in the scheme design, only part of the reserves (called producing reserves) are used to participate in the case index calculation! ! Fitting this part of reserves:
d: Calculate the program indicators under various situations 6.1.9.10 Development indicator sensitivity extension
Consider the influence of the following factors on the case indicators;
Date socks people small;
5 Permeability size
) Change of the ratio of horizontal permeability and oxygen grass permeability; Process:
e Distribution support, mining reverse health:
[Condensate micro-development method
6.1.10 Recommend the optimal development method
6.21 Evaluation
6.2.1 Overview
6.2.1.1 Ground cover and environmental conditions are the same as 5.1.1: 6, 2,! 2. The location and quality of natural gas transportation: description of process facilities and ten key conclusions, 6.2.2 Drilling and completion
SY/T10013—1998
6.2.2.1 Drilling methods, including pre-drilling, platform drilling and drilling rig types, etc. 6.2.2.2 Drilling technology, including drill bit sequence, pipe type, casing sequence, mud selection, drilling support cycle, etc. 6.2.2.3 Completion methods.
6.2.2.4 Completion facility configuration.
6.2.3 Development 1. Brief description of the project plan
The selection basis, plan screening and recommended plan of the project plan should be briefly described. 6.2.3.1 Main production facilities
a) Offshore platform and underwater equipment;
b) Submarine pipeline. Including platform and shore route, length, pipe diameter, wall thickness, gas transmission capacity, gas transmission pressure, gas transmission temperature, pipeline corrosion protection, submarine cable, etc.:
:) Attached pipeline, including pipeline route, length, pipe diameter, wall thickness, gas transmission capacity, gas transmission pressure and its supporting facilities; d) Onshore facilities, including onshore terminal and its supporting facilities; d) Oil and gas separation system and natural gas processing system. 6.2.3.2 The main supporting facilities and public systems of offshore platforms mainly include:
a) Living supporting facilities;
b) Power supply and water supply;
e) Communication;
d) Transportation.
6.2.3.3 Other facilities
Includes:
a) Safety system:
b) Protection facilities:
) Instrument and control system,
6.3 Economic evaluation
6.3.1 Investment estimation
6.3.1.1 Project overview.
6.3.1.2 Investment estimation principles
6.3.1.3 Investment estimation basis
Exploration investment:
6.3.1.5 Development investment
Virtual includes:
) Drilling and completion fees:
b) Platform fees;
) Subsea equipment fees;
d) Subsea pipeline fees:
) Subsea cable fees;
f) Onshore pipeline fees:
) Onshore terminal and off-site engineering fees:
h) Personnel training fees and production preparation fees.
6.3.2 Annual operating costs
6.3.3 Economic evaluation
6.3.3.1 Economic evaluation model.
SY/T10013—1998
6.3.3.2 The main evaluation parameters shall include taxes, tax rates, gas prices and their rising rates, inflation rates, loan interest rates, exchange rates, etc. 6.3.3.3 Calculation of economic indicators.
6.3.3.4 Conclusion of economic evaluation
6.3.4 Recommended plan.
6.3.5 Sensitivity analysis.
6.3.6 Conclusion.
6.4 Conclusion and suggestions for evaluation
6.4.1 Conclusion.
6.4.2 Suggestions
Suggestions for gas fields with development value shall include: a) Further evaluation requirements and solutions to doubtful geological problems; b) Environmental adjustment suggestions;
c) Market development suggestions.
6.5 Main maps and basic data tables
6.5.1 Main maps
Includes:
a) Schematic diagram of gas field location:
b) Comprehensive columnar diagram of gas layers
c) Top and bottom structural depth diagram of gas layers
d) Vertical and horizontal sections of gas layers
e) Relationship diagram between gas reservoir pressure, temperature and altitude depth;f) Gas layer thickness diagram:
g) Porosity and permeability contour diagram of gas layer layers;h) Classification distribution diagram of reserve calculation, including reservoir production range diagram, cap layer distribution diagram and interlayer distribution diagram;i) Frequency distribution diagram of gas layer physical properties:||t t||j) Capillary pressure curve
k) Gas and water relative permeability curve:
1) Fluid phase analysis diagram;
m) Development well location and digital model grid
n) Development plan index prediction curve:
) Engineering plan layout diagram, including:
1) Engineering plan system diagram;
2) Offshore platform main process flow chart:
3) Offshore platform facility layout diagram
4) Onshore terminal main process flow chart;
5) Onshore terminal facility general plan,
p) Economic evaluation curve and sensitivity analysis diagram. 6.5.2 Basic data table
Includes:
a) Drilling results and coring statistics table;
b) Stratigraphic stratification data table;Others include top and bottom depth structure map of natural gas reservoir, layered sand thickness map, layered porosity isovalue map, layered permeability value map, medium pipe: small line layered relative permeability line layered geophysical layered formation temperature, layered fluid physical property signature number obtained rock physical parameters, single liter base data and non-fluid property parameters: simulated point gas reservoir geological reserves or gas reservoir dynamic geological reserves: according to the requirements of the scheme design, such as all the original geological reserves are involved in the scheme index calculation. Fitted original geological reserves: in the scheme design, only part of the reserves (called producing reserves) are used to participate in the case index calculation! ! Fitting this part of reserves:
d: Calculate the program indicators under various situations 6.1.9.10 Development indicator sensitivity extension
Consider the influence of the following factors on the case indicators;
Date socks people small;
5 Permeability size
) Change of the ratio of horizontal permeability and oxygen grass permeability; Process:
e Distribution support, mining reverse health:
[Condensate micro-development method
6.1.10 Recommend the optimal development method
6.21 Evaluation
6.2.1 Overview
6.2.1.1 Ground cover and environmental conditions are the same as 5.1.1: 6, 2,! 2. The location and quality of natural gas transportation: description of process facilities and ten key conclusions, 6.2.2 Drilling and completion
SY/T10013—1998
6.2.2.1 Drilling methods, including pre-drilling, platform drilling and drilling rig types, etc. 6.2.2.2 Drilling technology, including drill bit sequence, pipe type, casing sequence, mud selection, drilling support cycle, etc. 6.2.2.3 Completion methods.
6.2.2.4 Completion facility configuration.
6.2.3 Development 1. Brief description of the project plan
The selection basis, plan screening and recommended plan of the project plan should be briefly described. 6.2.3.1 Main production facilities
a) Offshore platform and underwater equipment;
b) Submarine pipeline. Including platform and shore route, length, pipe diameter, wall thickness, gas transmission capacity, gas transmission pressure, gas transmission temperature, pipeline corrosion protection, submarine cable, etc.:
:) Attached pipeline, including pipeline route, length, pipe diameter, wall thickness, gas transmission capacity, gas transmission pressure and its supporting facilities; d) Onshore facilities, including onshore terminal and its supporting facilities; d) Oil and gas separation system and natural gas processing system. 6.2.3.2 The main supporting facilities and public systems of offshore platforms mainly include:
a) Living supporting facilities;
b) Power supply and water supply;
e) Communication;
d) Transportation.
6.2.3.3 Other facilities
Includes:
a) Safety system:
b) Protection facilities:
) Instrument and control system,
6.3 Economic evaluation
6.3.1 Investment estimation
6.3.1.1 Project overview.
6.3.1.2 Investment estimation principles
6.3.1.3 Investment estimation basis
Exploration investment:
6.3.1.5 Development investment
Virtual includes:
) Drilling and completion fees:
b) Platform fees;
) Subsea equipment fees;
d) Subsea pipeline fees:
) Subsea cable fees;
f) Onshore pipeline fees:
) Onshore terminal and off-site engineering fees:
h) Personnel training fees and production preparation fees.
6.3.2 Annual operating costs
6.3.3 Economic evaluation
6.3.3.1 Economic evaluation model.
SY/T10013—1998
6.3.3.2 The main evaluation parameters shall include taxes, tax rates, gas prices and their rising rates, inflation rates, loan interest rates, exchange rates, etc. 6.3.3.3 Calculation of economic indicators.
6.3.3.4 Conclusion of economic evaluation
6.3.4 Recommended plan.
6.3.5 Sensitivity analysis.
6.3.6 Conclusion.
6.4 Conclusion and suggestions for evaluation
6.4.1 Conclusion.
6.4.2 Suggestions
Suggestions for gas fields with development value shall include: a) Further evaluation requirements and solutions to doubtful geological problems; b) Environmental adjustment suggestions;
c) Market development suggestions.
6.5 Main maps and basic data tables
6.5.1 Main maps
Includes:
a) Schematic diagram of gas field location:
b) Comprehensive columnar diagram of gas layers
c) Top and bottom structural depth diagram of gas layers
d) Vertical and horizontal sections of gas layers
e) Relationship diagram between gas reservoir pressure, temperature and altitude depth;f) Gas layer thickness diagram:
g) Porosity and permeability contour diagram of gas layer layers;h) Classification distribution diagram of reserve calculation, including reservoir production range diagram, cap layer distribution diagram and interlayer distribution diagram;i) Frequency distribution diagram of gas layer physical properties:||t t||j) Capillary pressure curve
k) Gas and water relative permeability curve:
1) Fluid phase analysis diagram;
m) Development well location and digital model grid
n) Development plan index prediction curve:
) Engineering plan layout diagram, including:
1) Engineering plan system diagram;
2) Offshore platform main process flow chart:
3) Offshore platform facility layout diagram
4) Onshore terminal main process flow chart;
5) Onshore terminal facility general plan,
p) Economic evaluation curve and sensitivity analysis diagram. 6.5.2 Basic data table
Includes:
a) Drilling results and coring statistics table;
b) Stratigraphic stratification data table;Others include top and bottom depth structure map of natural gas reservoir, layered sand thickness map, layered porosity isovalue map, layered permeability value map, medium pipe: small line layered relative permeability line layered geophysical layered formation temperature, layered fluid physical property signature number obtained rock physical parameters, single liter base data and non-fluid property parameters: simulated point gas reservoir geological reserves or gas reservoir dynamic geological reserves: according to the requirements of the scheme design, such as all the original geological reserves are involved in the scheme index calculation. Fitted original geological reserves: in the scheme design, only part of the reserves (called producing reserves) are used to participate in the case index calculation! ! Fitting this part of reserves:
d: Calculate the program indicators under various situations 6.1.9.10 Development indicator sensitivity extension
Consider the influence of the following factors on the case indicators;
Date socks people small;
5 Permeability size
) Change of the ratio of horizontal permeability and oxygen grass permeability; Process:
e Distribution support, mining reverse health:
[Condensate micro-development method
6.1.10 Recommend the optimal development method
6.21 Evaluation
6.2.1 Overview
6.2.1.1 Ground cover and environmental conditions are the same as 5.1.1: 6, 2,! 2. The location and quality of natural gas transportation: description of process facilities and ten key conclusions, 6.2.2 Drilling and completion
SY/T10013—1998
6.2.2.1 Drilling methods, including pre-drilling, platform drilling and drilling rig types, etc. 6.2.2.2 Drilling technology, including drill bit sequence, pipe type, casing sequence, mud selection, drilling support cycle, etc. 6.2.2.3 Completion methods.
6.2.2.4 Completion facility configuration.
6.2.3 Development 1. Brief description of the project plan
The selection basis, plan screening and recommended plan of the project plan should be briefly described. 6.2.3.1 Main production facilities
a) Offshore platform and underwater equipment;
b) Submarine pipeline. Including platform and shore route, length, pipe diameter, wall thickness, gas transmission capacity, gas transmission pressure, gas transmission temperature, pipeline corrosion protection, submarine cable, etc.:
:) Attached pipeline, including pipeline route, length, pipe diameter, wall thickness, gas transmission capacity, gas transmission pressure and its supporting facilities; d) Onshore facilities, including onshore terminal and its supporting facilities; d) Oil and gas separation system and natural gas processing system. 6.2.3.2 The main supporting facilities and public systems of offshore platforms mainly include:
a) Living supporting facilities;
b) Power supply and water supply;
e) Communication;
d) Transportation.
6.2.3.3 Other facilities
Includes:
a) Safety system:
b) Protection facilities:
) Instrument and control system,
6.3 Economic evaluation
6.3.1 Investment estimation
6.3.1.1 Project overview.
6.3.1.2 Investment estimation principles
6.3.1.3 Investment estimation basis
Exploration investment:
6.3.1.5 Development investment
Virtual includes:
) Drilling and completion fees:
b) Platform fees;
) Subsea equipment fees;
d) Subsea pipeline fees:
) Subsea cable fees;
f) Onshore pipeline fees:
) Onshore terminal and off-site engineering fees:
h) Personnel training fees and production preparation fees.
6.3.2 Annual operating costs
6.3.3 Economic evaluation
6.3.3.1 Economic evaluation model.
SY/T10013—1998
6.3.3.2 The main evaluation parameters shall include taxes, tax rates, gas prices and their rising rates, inflation rates, loan interest rates, exchange rates, etc. 6.3.3.3 Calculation of economic indicators.
6.3.3.4 Conclusion of economic evaluation
6.3.4 Recommended plan.
6.3.5 Sensitivity analysis.
6.3.6 Conclusion.
6.4 Conclusion and suggestions for evaluation
6.4.1 Conclusion.
6.4.2 Suggestions
Suggestions for gas fields with development value shall include: a) Further evaluation requirements and solutions to doubtful geological problems; b) Environmental adjustment suggestions;
c) Market development suggestions.
6.5 Main maps and basic data tables
6.5.1 Main maps
Includes:
a) Schematic diagram of gas field location:
b) Comprehensive columnar diagram of gas layers
c) Top and bottom structural depth diagram of gas layers
d) Vertical and horizontal sections of gas layers
e) Relationship diagram between gas reservoir pressure, temperature and altitude depth;f) Gas layer thickness diagram:
g) Porosity and permeability contour diagram of gas layer layers;h) Classification distribution diagram of reserve calculation, including reservoir production range diagram, cap layer distribution diagram and interlayer distribution diagram;i) Frequency distribution diagram of gas layer physical properties:||t t||j) Capillary pressure curve
k) Gas and water relative permeability curve:
1) Fluid phase analysis diagram;
m) Development well location and digital model grid
n) Development plan index prediction curve:
) Engineering plan layout diagram, including:
1) Engineering plan system diagram;
2) Offshore platform main process flow chart:
3) Offshore platform facility layout diagram
4) Onshore terminal main process flow chart;
5) Onshore terminal facility general plan,
p) Economic evaluation curve and sensitivity analysis diagram. 6.5.2 Basic data table
Includes:
a) Drilling results and coring statistics table;
b) Stratigraphic stratification data table;5 Development investment includes: a) Drilling and completion fees; b) Platform fees; d) Subsea equipment fees; f) Subsea pipeline fees; h) Subsea cable fees; 6.3.2 Annual operating costs; 6.3.3 Economic evaluation; 6.3.3.1 Economic evaluation model. SY/T10013—1998; 6.3.3.2 The main evaluation parameters should include taxes, tax rates, gas prices and their rising rates, inflation rates, loan interest rates, exchange rates, etc. 6.3.3.3 Calculation of economic indicators.
6.3.3.4 Conclusion of economic evaluation
6.3.4 Recommended plan.
6.3.5 Sensitivity analysis.
6.3.6 Conclusion.
6.4 Conclusion and suggestions
6.4.1 Conclusion.
6.4.2 Suggestions
Suggestions for gas fields with development value should include: a) Further evaluation requirements and solutions to doubtful geological problems; b) Environmental adjustment suggestions;
c) Market development suggestions.
6.5 Main maps and basic data tables
6.5.1 Main maps
Includes:
a) Schematic diagram of gas field location:
b) Comprehensive columnar diagram of gas layers
c) Top and bottom structural depth diagram of gas layers
d) Vertical and horizontal sections of gas layers
e) Relationship diagram between gas reservoir pressure, temperature and altitude depth;f) Gas layer thickness diagram:
g) Porosity and permeability contour diagram of gas layer layers;h) Classification distribution diagram of reserve calculation, including reservoir production range diagram, cap layer distribution diagram and interlayer distribution diagram;i) Frequency distribution diagram of gas layer physical properties:||t t||j) Capillary pressure curve
k) Gas and water relative permeability curve:
1) Fluid phase analysis diagram;
m) Development well location and digital model grid
n) Development plan index prediction curve:
) Engineering plan layout diagram, including:
1) Engineering plan system diagram;
2) Offshore platform main process flow chart:
3) Offshore platform facility layout diagram
4) Onshore terminal main process flow chart;
5) Onshore terminal facility general plan,
p) Economic evaluation curve and sensitivity analysis diagram. 6.5.2 Basic data table
Includes:
a) Drilling results and coring statistics table;
b) Stratigraphic stratification data table;5 Development investment includes: a) Drilling and completion fees; b) Platform fees; d) Subsea equipment fees; f) Subsea pipeline fees; h) Subsea cable fees; 6.3.2 Annual operating costs; 6.3.3 Economic evaluation; 6.3.3.1 Economic evaluation model. SY/T10013—1998; 6.3.3.2 The main evaluation parameters should include taxes, tax rates, gas prices and their rising rates, inflation rates, loan interest rates, exchange rates, etc. 6.3.3.3 Calculation of economic indicators.
6.3.3.4 Conclusion of economic evaluation
6.3.4 Recommended plan.
6.3.5 Sensitivity analysis.
6.3.6 Conclusion.
6.4 Conclusion and suggestions
6.4.1 Conclusion.
6.4.2 Suggestions
Suggestions for gas fields with development value should include: a) Further evaluation requirements and solutions to doubtful geological problems; b) Environmental adjustment suggestions;
c) Market development suggestions.
6.5 Main maps and basic data tables
6.5.1 Main maps
Includes:
a) Schematic diagram of gas field location:
b) Comprehensive columnar diagram of gas layers
c) Top and bottom structural depth diagram of gas layers
d) Vertical and horizontal sections of gas layers
e) Relationship diagram between gas reservoir pressure, temperature and altitude depth;f) Gas layer thickness diagram:
g) Porosity and permeability contour diagram of gas layer layers;h) Classification distribution diagram of reserve calculation, including reservoir production range diagram, cap layer distribution diagram and interlayer distribution diagram;i) Frequency distribution diagram of gas layer physical properties:||t t||j) Capillary pressure curve
k) Gas and water relative permeability curve:
1) Fluid phase analysis diagram;
m) Development well location and digital model grid
n) Development plan index prediction curve:
) Engineering plan layout diagram, including:
1) Engineering plan system diagram;
2) Offshore platform main process flow chart:
3) Offshore platform facility layout diagram
4) Onshore terminal main process flow chart;
5) Onshore terminal facility general plan,
p) Economic evaluation curve and sensitivity analysis diagram. 6.5.2 Basic data table
Includes:
a) Drilling results and coring statistics table;
b) Stratigraphic stratification data table;
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