SY/T 0081-1993 Design specification for thermochemical sedimentation dehydration of crude oil
Some standard content:
Petroleum and Natural Gas Industry Standard of the People's Republic of China
Design Specification of Thermo-chemical Setting Dehydration for Crude Oil $Y/T 0081—93
Editor: Survey and Design Institute of Jianghan Petroleum Administration Bureau Approval Department: China National Petroleum Corporation Effective Date: June 1, 1994
Petroleum Industry Press
1994·Beijing
General Provisions
Process Design of Thermo-chemical Setting Dehydration
Design of Thermo-chemical Setting Dehydrator
Process Installation Design
Appendix A Explanation of Terms Used in This Standard
Additional Explanation
Appendix: Design of Thermo-chemical Setting Dehydration for Crude Oil Specification 6
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Article Explanation (2)
China National Petroleum Corporation Document
(93) CNPC Technical Supervision No. 863
Notice on the Approval of the Release of 85 Petroleum and Natural Gas Industry Standards including the "Design Specifications for Thermochemical Sedimentation and Dehydration of Crude Oil"
To all relevant units
The "Design Specifications for Thermochemical Sedimentation and Dehydration of Crude Oil" and other 85 standards (draft) have been reviewed and approved and are now approved as petroleum and natural gas industry standards and are hereby released. The numbers and names of each standard are as follows:
SY/T 0081--93
SY/T 0082-93
SY/T 0525.1—93
SY/T 0525.2--33
SY/T0525.3—93
SY/T 0525.4—93
SY/T 0525.5—93
SY/T 0527--93
SY/T 0528—93
Design specification for thermochemical sedimentation and degassing of crude oil
Specification for preliminary design of surface engineering for crude oil and natural gas
Hydraulic safety valve for oil storage tank
Swivel joint for oil storage tank
Air foam generator for oil storage
Steel hole accessories for oil storage tank
Oil measuring hole for oil storage tank
Analysis of crude oil group composition High performance liquid chromatography Determination of arsenic content in crude oil by microdisk Atomic absorption spectrometry
10. SY/T 0529—93
SY/T 0530—93
SY/T 0532-—-93
SY/T 5128—93
SY/T 5179—93
SY/T 5191--93
SY/T 5313—93
SY/T 5326--93
SY/T 5788.1—93
SY/T 5788.2—93
SY/T 6819—93
SY/T 5820-93
SY/T 582593
SY/T 584293
SY/T 5849—93
SY/T 5851--93
SY/T 5852-93
SY585393
SY 5854-93
SY5855-93
C,~C18N.CO. components in oilfield gas
Analysis correlation - gas chromatography
Determination of oil content in oilfield sewage - spectrophotometry
Analysis of bacteria in oilfield injection water - extinction dilution method
General technical conditions for shaped perforating bullets in oil and gas wells (replaces SY5128-86)
Labor quota for petroleum machinery processing (replaces SYn5179--87)
Technical conditions for gas chromatography and measuring instrument
Terms of drilling engineering (replaces SY5313-
Technical regulations for coring well wall (replaces SY5326-88)
Stone Comprehensive logging regulations for oil and gas drilling geology Gas logging regulations for oil and gas drilling geology Gravity exploration technical regulations
Technical regulations for oil magnetotelluric sounding method
Temperature test of mechanical downhole thermometer
Technical requirements for preparation of sandstone oilfield development plan Development geology Reservoir engineering part
Evaluation method for chemical plugging removal effect of oil and water wells Technical requirements for preparation of sandstone oilfield water injection development adjustment plan
Technical specifications for completion testing of offshore gas wells
Safety management regulations for compressed natural gas cylinders for vehicles in the petroleum industry
Safety regulations for special wet steam generators for oil fields Procedure for investigation and handling of casualties of employees in petroleum enterprises 30.
SY6856-93
SY 6857--93
SY 5858—93
SY/T 5869--93
SY/T 5860-93
SY/T 5861--93
5862-93
5863-93
5884—93
SY/T 586593
SY/T 5866---93
SY/T 5867—93
SY 5868-93
SY/T 5869--93
SY/T 5870-93
SY/T 5871-93
SY/T 5872—93
SY/T 5873.1—93
SY/T 5873.3--93
SY/T 5873,4—93
SY/T 5874-93
SY/T 6875-93
SY 5876—93
SY/T 5877—93
SY/T 5878--93
Safety regulations for live working in oil and gas fields
Safety management regulations for explosives in seismic explorationSafety regulations for industrial fire in petroleum enterprises
Bridge plug setting tools
Plastic ball skill ball device,
Fracturing wellhead protector
Performance determination of acrylamide polymers for oil displacement
Submersible electric pump lifting and lowering operation method
Test of dynamometer diagram of pumping well
Evaluation method of profile adjustment effect of water injection well in sandstone oil fieldSurface direct reading test certification regulations
Classification and coding of oil and gas resource evaluation methods
Safety production management regulations for onshore oil land teamFlowing well Conventional test of parallel pressure
Bellows for casing supplement
Drillable packer
Oil pump maintenance regulations
Technical practice of rod pump oil pumping operation
Technical practice of rod pump oil plugging operation
Technical practice of rod pump oil pumping operation
Evaluation method of oil and water plugging effect
Method of testing liquid level in oil well
Conventional shaft
Slant well pumping
Large pump pumping
Safety inspection regulations for oil drilling teams
Maintenance technical specifications for compensated density logging tools
Maintenance technical specifications for natural gamma logging tools
SY/T 587993
SY/T 5880.1-93
SY/T 5880.2—93
SY/T 5881—93
SY/T 5882--93
SY/T 5883--93
SY/T 5884-93wwW.bzxz.Net
SY/T 5885--93
SY/T 5886-93
SY/T 5887--93
SY/T 588893
SY/T 5889-93
SY/T 5890—93
SY/T 5891,1--93
SY/T 5892.2---93
589293
SY/T 5803-93
SY/T 5894—93
SY/T 5895--93
SY/T 5896--93
SY/T 589793
SY/T 5898—93
Maintenance technical requirements for dual-sensing 18-way lateral measuring instrument
General rules for calibration of petroleum well instruments
Calibration regulations for dual-sensing 18-way lateral measuring instrumentContract specifications for export of electromechanical equipment in the petroleum industryContract specifications for import of electromechanical equipment in the petroleum industry
Contract specifications for export of complete sets of electromechanical equipment in the petroleum industry
Technical conditions for fracturing vehicles
High-concentration hydrochloric acid corrosion inhibitor CT1-3 for acidizing
Evaluation method for acid retarding performance of sandstone
Evaluation method for the effect of crude oil pour point depressant||t t||Method for evaluating the flotation effect of flotation agent
Method for evaluating the performance of deoxidizing agent
Method for evaluating the performance of thinning agent
Rotor
Specification for the production of concrete targets for perforating bullets (devices) in oil and gas wells
Method for testing and comprehensive evaluation of perforating guns for oil and gas
Regulations on the management of new technologies for logging holes
Method for determining the permeability of loose sand
Labor quotas for maintenance of special vehicles in oil fields
Used quantities and unit exploration and development of the petroleum industry
(Replacement of SY 5433—92，SY5155-
Labor frequency setting for gas extraction engineering,
Labor frequency setting for gas transmission engineering
General technical conditions for seismic data transmission cables
SY/T 5899--93
SY/T 5900—93
SY/T 5901—93
SY/T 5902—93
SY/T 5903--93
SY/T 5904—93
SY/T 5905-93
SY/T 5906--93
SY/T 5924—93
Technical conditions for hydraulic power instrument
Technical conditions for bimetallic thermometer
Classification of instruments for oil exploration and development
Basic environmental test methods for oil exploration and development instrumentsTest: tilting and tipping test
Design method for pumping rod string combination
Principles for well selection and pump selection design method for submersible electric pumpSelection method for beam pumping unit
Method for making graph of water loss curve of water distribution nozzle
Method for water plugging operation in oil well
Water plugging operation
The above standards shall be implemented from June 1, 1994. Open hole well mechanical card
China National Petroleum Corporation
January 6, 1994
1.0.1 This specification is formulated to unify the design standards and technical requirements for thermochemical sedimentation and dehydration of crude oil and make the design technologically advanced, economically reasonable, safe and applicable. 1.0.2 This specification is applicable to the construction and expansion of crude oil thermochemical sedimentation dehydration projects in onshore oil fields. The reconstruction projects can refer to it for implementation. 1.0.3 Design of crude oil thermochemical sedimentation dehydration projects. In addition to complying with this specification, it shall also comply with the provisions of the relevant national standards and specifications in force. 2 Terminology
2.01 Demulsifier Surfactant used in the process of crude oil demulsification and dehydration. 2.0, 2 Emulsion is a multiphase system in which at least one liquid is uniformly dispersed in the form of liquid droplets in another immiscible body. 2.0.3 Screening, the process of selecting several different types of demulsifiers for an emulsified crude oil, conducting dehydration and demulsification tests one by one under the same process conditions, and then selecting the best demulsifier.
2.0.4 Oil-water interface conditions After the oil and water of the emulsified crude oil are separated, the oil-water interface presents different states.
2.0.5 Oil content of demulsified water The mass of crude oil contained in a unit volume of demulsified water. 2.0.6 Three-phase separator is a pressure vessel with oil, gas and water separation functions. 2
3 General provisions
3.0.1 The design processing capacity of the crude oil thermochemical sedimentation dehydrator should match the scale of the dehydration station. The number of units should be determined by technical and economic comparison based on the total processing liquid volume and the processing capacity of each unit.
3.0.2 When a thermochemical sedimentation dehydrator is under maintenance, a spare unit should be set up when the load of the remaining dehydrators is greater than 1 or 2 times the design processing capacity. There should be no less than 2 thermochemical sedimentation dehydrators.
3.0.3 The temperature and sedimentation time of thermochemical sedimentation of crude oil should meet the following requirements: 3.0.3.1 The dehydration temperature of light crude oil should be below 50°C, and the sedimentation time should be 15~~25minc
3.0.3.2 The dehydration temperature of medium crude oil should be 50~60C, and the sedimentation time should be 25~30min.
3.0.3.3 The dehydration temperature of heavy crude oil should be 6090*C, and the sedimentation time should be 30~80min
3.0.4 Demulsifiers should be screened indoors according to (SY5281) "Demulsifier Performance Test Method Bottle Test Method".
3.5 The amount of demulsifier added must be determined through on-site industrial tests. Before obtaining test data, it can be calculated by adding 10~30g per ton of emulsified crude oil. 4 Thermochemical sedimentation dehydration process design
4.0, 1 The process flow of thermochemical sedimentation dehydration of crude oil should be determined according to the properties of crude oil through experiments and technical and economic comparison. When determining the process flow, it is advisable to adopt the technical measures of sewage recovery by two-stage electric dehydration.
4.0.2 The water content of emulsified crude oil treated by thermochemical sedimentation dehydration is 30% to 60%. The water content of crude oil and oil content in water after thermochemical dehydration should meet the following requirements: 4.0.2.1 When one-stage thermochemical sedimentation dehydration and two-stage electric dehydration are used, the water content in oil should not be greater than 30% after one-stage dehydration. 4.0.2.2, When only one-stage thermochemical sedimentation dehydration is used, the water content in the treated light and medium dehydrated crude oil should not be greater than 1%, and the water content in the heavy dehydrated crude oil should not be greater than 2%. 4.0.2.3 The oil content of sewage discharged to the sewage treatment station should not be greater than 1000mg/1. 4.0.3 The addition site of the demulsifier should be considered to give full play to its effectiveness: it is advisable to combine it with pipeline demulsification. The addition site can be set at the parallel port, metering station, and centralized treatment station. When adding demulsifiers at a centralized treatment station, the length of the pipeline between the addition point and the sedimentation dehydrator should be greater than 50m.
4.0,4 The addition method of the demulsifier should be easy to operate, continuous and uniform, accurate in preparation, and have metering facilities. The preparation concentration of the water-soluble demulsifier should be diluted to 1%~[0%, and the solution temperature should be 35~45°C. The liquid preparation tank should use a closed container. The oil-soluble demulsifier can use a metering plunger pump to add the demulsifier directly to the emulsified crude oil pipeline. 4.0.5 For heavy crude oil with sand content greater than 0.5%, it is advisable to use a large tank for sedimentation dehydration. For medium and light crude oil with sand content less than 0.5%, it is advisable to use a thermochemical sedimentation dehydration.
4.0.6 When the water content of crude oil exceeds 60%, it is advisable to use a first stage to remove free water and a second stage of thermochemical sedimentation dehydration.
4.0. When the water content of a first stage of thermochemical sedimentation can reach the quality index of dehydrated crude oil, a first stage of thermochemical sedimentation dehydration should be used.
4.0.8 When two or more thermochemical sedimentation dehydrators are arranged side by side, the net distance between them should not be less than 2m, and the distance from other production facilities should comply with the current (GB50183) "Code for Fire Protection Design of Crude Oil and Natural Gas Engineering". E8 When two or more thermochemical sedimentation dehydrators are arranged side by side, the net distance between them should not be less than 2m, and the distance from other production facilities should comply with the current (GB50183) "Code for Fire Prevention Design of Crude Oil and Natural Gas Engineering".8 When two or more thermochemical sedimentation dehydrators are arranged side by side, the net distance between them should not be less than 2m, and the distance from other production facilities should comply with the current (GB50183) "Code for Fire Prevention Design of Crude Oil and Natural Gas Engineering".6 Three-phase separator is a pressure vessel with oil, gas and water separation functions. 2
3 General provisions
3.0.1 The design processing capacity of the crude oil thermochemical sedimentation dehydrator should match the scale of the dehydration station. The number of units should be determined by technical and economic comparison based on the total processing liquid volume and the processing capacity of each unit.
3.0.2 When a thermochemical sedimentation dehydrator is under maintenance, a spare unit should be set up when the load of the remaining dehydrators is greater than 1 or 2 times the design processing capacity. There should be no less than 2 thermochemical sedimentation dehydrators.
3.0.3 The temperature and sedimentation time of thermochemical sedimentation of crude oil should meet the following requirements: 3.0.3.1 The dehydration temperature of light crude oil should be below 50°C, and the sedimentation time should be 15~~25minc
3.0.3.2 The dehydration temperature of medium crude oil should be 50~60C, and the sedimentation time should be 25~30min.
3.0.3.3 The dehydration temperature of heavy crude oil should be 6090*C, and the sedimentation time should be 30~80min
3.0.4 Demulsifiers should be screened indoors according to (SY5281) "Demulsifier Performance Test Method Bottle Test Method".
3.5 The amount of demulsifier added must be determined through on-site industrial tests. Before obtaining test data, it can be calculated by adding 10~30g per ton of emulsified crude oil. 4 Thermochemical sedimentation dehydration process design
4.0, 1 The process flow of thermochemical sedimentation dehydration of crude oil should be determined according to the properties of crude oil through experiments and technical and economic comparison. When determining the process flow, it is advisable to adopt the technical measures of sewage recovery by two-stage electric dehydration.
4.0.2 The water content of emulsified crude oil treated by thermochemical sedimentation dehydration is 30% to 60%. The water content of crude oil and oil content in water after thermochemical dehydration should meet the following requirements: 4.0.2.1 When one-stage thermochemical sedimentation dehydration and two-stage electric dehydration are used, the water content in oil should not be greater than 30% after one-stage dehydration. 4.0.2.2, When only one-stage thermochemical sedimentation dehydration is used, the water content in the treated light and medium dehydrated crude oil should not be greater than 1%, and the water content in the heavy dehydrated crude oil should not be greater than 2%. 4.0.2.3 The oil content of sewage discharged to the sewage treatment station should not be greater than 1000mg/1. 4.0.3 The addition site of the demulsifier should be considered to give full play to its effectiveness: it is advisable to combine it with pipeline demulsification. The addition site can be set at the parallel port, metering station, and centralized treatment station. When adding demulsifiers at a centralized treatment station, the length of the pipeline between the addition point and the sedimentation dehydrator should be greater than 50m.
4.0,4 The addition method of the demulsifier should be easy to operate, continuous and uniform, accurate in preparation, and have metering facilities. The preparation concentration of the water-soluble demulsifier should be diluted to 1%~[0%, and the solution temperature should be 35~45°C. The liquid preparation tank should use a closed container. The oil-soluble demulsifier can use a metering plunger pump to add the demulsifier directly to the emulsified crude oil pipeline. 4.0.5 For heavy crude oil with sand content greater than 0.5%, it is advisable to use a large tank for sedimentation dehydration. For medium and light crude oil with sand content less than 0.5%, it is advisable to use a thermochemical sedimentation dehydration.
4.0.6 When the water content of crude oil exceeds 60%, it is advisable to use a first stage to remove free water and a second stage of thermochemical sedimentation dehydration.
4.0. When the water content of a first stage of thermochemical sedimentation can reach the quality index of dehydrated crude oil, a first stage of thermochemical sedimentation dehydration should be used.
4.0.8 When two or more thermochemical sedimentation dehydrators are arranged side by side, the net distance between them should not be less than 2m, and the distance from other production facilities should comply with the current (GB50183) "Code for Fire Protection Design of Crude Oil and Natural Gas Engineering". E6 Three-phase separator is a pressure vessel with oil, gas and water separation functions. 2
3 General provisions
3.0.1 The design processing capacity of the crude oil thermochemical sedimentation dehydrator should match the scale of the dehydration station. The number of units should be determined by technical and economic comparison based on the total processing liquid volume and the processing capacity of each unit.
3.0.2 When a thermochemical sedimentation dehydrator is under maintenance, a spare unit should be set up when the load of the remaining dehydrators is greater than 1 or 2 times the design processing capacity. There should be no less than 2 thermochemical sedimentation dehydrators.
3.0.3 The temperature and sedimentation time of thermochemical sedimentation of crude oil should meet the following requirements: 3.0.3.1 The dehydration temperature of light crude oil should be below 50°C, and the sedimentation time should be 15~~25minc
3.0.3.2 The dehydration temperature of medium crude oil should be 50~60C, and the sedimentation time should be 25~30min.
3.0.3.3 The dehydration temperature of heavy crude oil should be 6090*C, and the sedimentation time should be 30~80min
3.0.4 Demulsifiers should be screened indoors according to (SY5281) "Demulsifier Performance Test Method Bottle Test Method".
3.5 The amount of demulsifier added must be determined through on-site industrial tests. Before obtaining test data, it can be calculated by adding 10~30g per ton of emulsified crude oil. 4 Thermochemical sedimentation dehydration process design
4.0, 1 The process flow of thermochemical sedimentation dehydration of crude oil should be determined according to the properties of crude oil through experiments and technical and economic comparison. When determining the process flow, it is advisable to adopt the technical measures of sewage recovery by two-stage electric dehydration.
4.0.2 The water content of emulsified crude oil treated by thermochemical sedimentation dehydration is 30% to 60%. The water content of crude oil and oil content in water after thermochemical dehydration should meet the following requirements: 4.0.2.1 When one-stage thermochemical sedimentation dehydration and two-stage electric dehydration are used, the water content in oil should not be greater than 30% after one-stage dehydration. 4.0.2.2, When only one-stage thermochemical sedimentation dehydration is used, the water content in the treated light and medium dehydrated crude oil should not be greater than 1%, and the water content in the heavy dehydrated crude oil should not be greater than 2%. 4.0.2.3 The oil content of sewage discharged to the sewage treatment station should not be greater than 1000mg/1. 4.0.3 The addition site of the demulsifier should be considered to give full play to its effectiveness: it is advisable to combine it with pipeline demulsification. The addition site can be set at the parallel port, metering station, and centralized treatment station. When adding demulsifiers at a centralized treatment station, the length of the pipeline between the addition point and the sedimentation dehydrator should be greater than 50m.
4.0,4 The addition method of the demulsifier should be easy to operate, continuous and uniform, accurate in preparation, and have metering facilities. The preparation concentration of the water-soluble demulsifier should be diluted to 1%~[0%, and the solution temperature should be 35~45°C. The liquid preparation tank should use a closed container. The oil-soluble demulsifier can use a metering plunger pump to add the demulsifier directly to the emulsified crude oil pipeline. 4.0.5 For heavy crude oil with sand content greater than 0.5%, it is advisable to use a large tank for sedimentation dehydration. For medium and light crude oil with sand content less than 0.5%, it is advisable to use a thermochemical sedimentation dehydration.
4.0.6 When the water content of crude oil exceeds 60%, it is advisable to use a first stage to remove free water and a second stage of thermochemical sedimentation dehydration.
4.0. When the water content of a first stage of thermochemical sedimentation can reach the quality index of dehydrated crude oil, a first stage of thermochemical sedimentation dehydration should be used.
4.0.8 When two or more thermochemical sedimentation dehydrators are arranged side by side, the net distance between them should not be less than 2m, and the distance from other production facilities should comply with the current (GB50183) "Code for Fire Protection Design of Crude Oil and Natural Gas Engineering". E
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