Some standard content:
ICS 73.040
National Standard of the People's Republic of China
CB/r19559—2004
Method of determining coalbed methane content2004-D6-18 issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Standardization Administration of China
2004-12-01 implementation
Normative references
Equipment
Product case
Determination method and cleaning
Data processing
Scald report
8 Quality evaluation
When the A normative appendix)
Socks sample natural bait absorption original record form
Coal kidney product good membrane original record form
Thanks to the people's normative international requirements)
Attachment ((Cong work limit record)
My reading Qi training record form
Yang record D number with appendix)
Attachment E: Normative life spirit!
Appendix standard requirements:
Coalbed methane analysis and moving average diagram
Anti-loss interconnection method calculation diagram
Coalbed methane combined length determination standard table
GB/T19559—2004
GB/T19559—2004
This standard fully follows the coalbed methane determination method of the Natural Gas Research Institute of the United States.Must arrive at the site, install and debug the instrument and put it into working state. 4.3.1 Coal core sample
Hold the coal core and take it out, open the core as much as possible, and take a quick photo and briefly describe it. If the coal is contaminated by the filter slurry, it should be properly cleaned with a clean cloth or quickly rinsed with disinfectant. The coal core should be quickly loaded into the suction chain in the order of coal seam shavings, and it should not be pressed. 4.3.2 Coal network
Start pump circulation, wait for the network to reach the vibrating screen, select the purer part and collect it in the sample box, quickly rinse the drill with disinfectant, and then load it into the desorption and quickly connect the seal,
4.3.3 Sample loading requirements
The sample for gas content determination requires loading at the entrance 1c. If the sample rack is full, the sample should be loaded and the actual sample volume should be adjusted according to the black slope. The empty volume in the desorption auxiliary tank should not exceed one tenth of the desorption volume. If the empty volume in the desorption tank is too large, the empty volume measurement should be carried out to correct the gas content measurement value. The glass material can choose the material that does not react to the coal gas, such as glass fiber reinforced plastic, desorption spheres, etc. 4.3.4 Parameter recording
Sampling details. At the same time, the following relevant parameters should be modified: a) Geological data: well number, layer name, formation depth, reservoir source); location: drilling pressure, rotation speed, drilling circulating medium, displacement; time parameters:
time when the core sample encounters a layer, total state time, time when the core is lifted to the wellhead, time when the coal sample is loaded into the tank, sampling date: coal sample drilling time e) Record sheet: Coal core sample pressure: Appendix 4, coal room specifications: Appendix 5, determination methods and procedures
5.1 Natural desorption
5.1.1 Desorption steps
Load samples and get good desorption rate When the desorption rate reaches the limit of the layer (or unit charge), connect the desorption meter with a faster tube and let the desorption gas enter the measuring cylinder at a faster speed. Keep the water surface aligned with the water surface and record the readings. Record the observed gas phases and the atmospheric temperature and pressure at that time. Fill them in the table in Appendix A or Appendix B respectively. Note the long-term reading at that point and subtract the above readings. The root reading is obtained, and the volume is: 1.2 The specified induction time is determined as the desorption position increases, and the measured data is recorded according to the above content. When the volume can no longer absorb the next set of gas, the gas in the tube is discharged (when collecting gas samples, the gas sample should be taken first and then discharged), the meter is adjusted to the initial state, and then the venting door is closed and the above steps are continued to measure. 5. 1. 2 Measurement time interval
During natural desorption, each time is completed at a certain interval, and the time interval depends on the gas volume and the pressure in the tank. After the first measurement is completed, the time is Em:n, and each measurement is carried out at 1 cmir.15 mir..3 gmir:.63 mia:n, and the second measurement is carried out after 12 nmi: until the cumulative full&h,
continuous new suction&\, the appropriate new suction time can be determined by the visual repulsion surface pressure after desorption, and the longest is 20,000. 5.1.3 Desorption drop limit
Spontaneous desorption continues for 7 consecutive dogs. Every time the new suction cup is less than or equal to 10 cm, the desorption measurement is completed. 5.1.4 Weighing and classification
After the self-desorption system is completed, the coal rock is opened and the coal is introduced. The content includes the type of drying cover, the wall release, the central environment, etc., and the sample is weighed after being dried. The air-dried sample weight is calculated to calculate the total sample volume. Select representative coal samples of 400 to 50 mm in size and cut into 2 cm3 size, and put them into ball mill or crusher for residual gas determination; at the same time, select representative samples with a diameter of 0.20 mm, and determine the moisture and content of the coal samples according to GD/T212-2001. Disassemble and analyze the coal samples according to needs. 5.2 Residual gas determination
5.2.1 Determination method
Put the sample after combustion into a ball mill, and place the ball on the ball mill for 2b-4h, and then put it into the device. After the leakage of the layer is recovered, observe the gas record, read the gas volume, and record it together with the atmospheric temperature, atmospheric pressure, absorption time, etc. in the table in the appendix. 5.2.2 The residual gas determination shall be carried out for 7 consecutive days. If the desorbed gas volume is less than or equal to 1 cm, the residual gas determination is terminated. 5.2.3 Weighing and calculating After the residual gas determination is completed, the sample shall be discharged to the wind, and the coal sample shall be weighed as the heavy standard for calculating the residual gas content. 5.3 Gas sampling and gas composition determination 5.3.1 After the gas sample is collected, the gas and residual gas are determined by the user. If it is necessary to collect gas samples for gas composition analysis, prepare a 1m long hose and a gas sample bottle (25 glass bottles) and the water phase required for collecting gas. The gas collection method used in chemical laboratories is adopted, that is, when the volume of the gas in the cylinder is .40, connect the hose to the gas collection tube, fill it with water, open the gas valve and lift the bottle, and let the gas pass through the hose into the bottle after the gas is discharged. After the gas is received at 130℃, put the hose down into the water bottle, put a label on the bottle, put it in the box, and send it to the laboratory for gas component analysis: 5.3.2 Number and rate of gas sampling frequency Three gas samples were collected in the desorption period. The coal core samples were collected at the 4th hour, 21st hour and the first day of desorption. The coal core samples were analyzed according to the temperature of the desorption gas. 5.3.3 Gas component analysis The collected gas samples were analyzed for single components in accordance with G3/T1361J[992. 6 Data processing 6.1 Desorption gas correction The gas volume obtained by desorption and residual gas must be corrected for the gas volume and converted to the standard state (temperature 2u, pressure 1.33kPa, gas rate 1.33kPa). The gas volume correction formula is as follows: 3 A/T19559-2004 293. 15 x I'. X V.
101. 83x<273.15+T
V standard (volume, unit is cubic meter (en) - gas unit is thousand of a;
popular store, unit is degree Celsius ();
gas volume (desorption measurement method) unit is cubic meter (cm). 6. 2 Calculation of lost gas volume
5. 2. 1. Super gas loss time calculation: When the new medium is water and mixed, the time from the core driving to the point of penetration is taken as the zero recovery time: When the well medium is foam or gas, the average time of drilling the reverse coal seam is the time of the installation of the low station. The calculation formula is as follows: The calculation formula for the expected gas loss time when the circulating medium of the well is clear water slurry: = ± + -,)
The calculation formula for the gas loss time when the drilling medium is air system: --
Where:
Gas loss time, unit is minutes (mi):
Coal seam time unit is day hour! Minute: Drilling time unit is: hour, minute: weighing, core drying time unit is: hour: minute: second; Coal core installation suction seal time unit is day! hour, minute! yarn. 6.2.2 Calculation method of lost gas volume
In this standard, the lost gas volume is calculated by direct method, [2]
Direct method Tir\ireiMetoc) is to determine the initial desorption temperature and the resistance temperature in reverse order, take the desorption time of the instrument under standard state as the coordinate, and plot the loss gas time and the square of the sum of the desorption time as the vertical coordinate. Connect the points of the initial desorption line, extend the straight line and intersect the vertical coordinate axis, and the distance between the straight line and the vertical coordinate axis is the lost gas, see the appendix, 6.3 Basis for calculation of gas content
The gas content of coal can be determined by two methods, and the dry basic gas content of air, and the different types of dry gas content. Air heat base: It must be the sample charge + dryness of the air after the desorption end of the melt, and the sample quality analysis reference number, and the air filter weight minus the ash and water weight. 6.4 Calculation of gas components
The various gas components can be calculated according to the current calculation of GB/118610-1SS2. 6.5. Calculation of drying gas content
According to the measurement process, the layer gas content can be divided into three parts: the lost gas content, the desorbed gas content and the residual gas oxygen content. 6.5. 1 Calculation of lost gas content
Co:VL/T
Wherein:
Gas loss volume, in cubic meter per gram (r/g); Gas component: Naturally aspirated component: Total sample weight, in grams (5), divided into gas dry media basis and dry ash basis. 6.5.2 Calculation of naturally desorbed gas content
G: = In the formula,
is the measured total volume of naturally desorbed gas, the unit is centimeter per gram (cm/s); V is the measured volume of naturally desorbed gas, the unit is cubic meter (c); total weight of sample, the unit is gram), air dry basis and dry basis: 6.5.3 Calculation of residual gas content
Cce=Vr/mR
Residual gas content, the unit is cubic meter per gram (m/s); Gen
is the residual gas content, the unit is cubic meter (m);
Residual gas sample volume, the unit is R), air dry basis and dry basis. 6.5.4 Calculation of gas content
GD/T 19559-2004
Baking standard G: The sum of the total gas content of the sample, the total amount of the naturally desorbed gas and the residual gas, that is, Gie+eo-Ga
6.6 Calculation of adsorption time
The adsorption time (meaning the time taken for 63.2% of the sample gas to be desorbed, generally in days) is calculated by graphical or computational methods. Under the computational method: First, calculate the total gas volume e3.2 ※ corresponding to the volume of the sample: V.% = YT * 53. 2%
Wu Zhong:
Y-—The gas volume corresponding to 63.2% of the total gas recording, the unit is cubic meter* (r1; one is the loss of atmosphere, the sum of the natural new intake air and the residual gas volume, the single unit is centimeter (m). ..
Secondly, calculate the time of each measured point and the cumulative gas volume of each point under standard conditions): Then, according to the interval of the small excavation mountain V, use the in-line method to find the corresponding time, that is, the minimum,)
Details of the time the product is in transportation, if it is not stored in the ambient temperature, it should be deducted from the cumulative time, the adsorption time does not include the same time during transportation. Otherwise, it can be dissatisfactory.
6.7 Calculation accuracy requirements
The data of the gas content in the drying layer should be guaranteed to be 2 digits.
7 The main documents of the determination of the gas content in the drying layer include
The original record of natural desorption (with carbon A or B), the original record of the residual gas width at the end (appendix), the desorption cable (period D, the calculation chart (appendix), the industrial analysis report, the gas component analysis report, the new gas content determination report (for element F, etc. Text description and related analysis, such as the description of the sampling situation, the description of the experimental process, etc., the daily quality evaluation speed
Detailed record of the sampling, determination and instrumentation in the basic implementation process The actual situation of the equipment gap is used as the basis for the quality evaluation of the measurement results. The quality review includes the following contents:
B.1 Sample collection quality review
8.1.1 The sample cannot be assembled in time. After the sample reaches the surface, it cannot be loaded and unloaded within JUtni. This should be noted in the record. 8.1.2 For the low sample, the actual situation should be noted. The reason why the corresponding analysis cannot be carried out in the quality evaluation period should be noted. 8.2 Special operation quality review
8.2.1 If the sample is too low, there will be a problem during the measurement process. If it cannot be handled in time, it should be stated in the report. The sample will be treated as a special sample. t:E production T E9559—2004
日.2.2 The measurement process should be noted, and the equipment should be operated to eliminate the gas. If the measurement information is inaccurate due to a fault, it should be explained: 8.3 Quality Engineer's Statement
B.3.1 Qualified Samples
If the problem in 8.1 or 8.2 is found in the process, the sample measured according to the specification can be directly used and regarded as a hot sample. 8.3.2 Test Samples
If there is a problem in the sample or the measurement process, resulting in the measurement not being carried out according to the specification, its measured value is only used as an example: This standard is mainly based on the determination of the core sample. The coal dust measurement value can be used as a reference for coalbed methane resource evaluation and production decision-making. 8.3. 3. If there is a need to read the sample, the sample temperature will be reported and the measured value will be invalid. Sampling location: Explosion depth/coal layer name: Determination period: sampling person: Attachment A (normative attachment) Explosion core sample mouth combustion and desorption source record: the most recent record: natural desorption source of coal core sample: sample number: frequency unit number. Pregnancy tank hanging/8: sample quality/g: time: time) network time: station time: overtime: time: arrival Estimated time
Equipment special time
GB/T19559—2004
Drilling volume at the same/min
Sample direction/mi
Moving layer humidity
Mining period
Three-body volume on-site travel
Partner:
Zhang Yang gas
Ck/I19559-2QQ4
Sample site
Coal seam name
Station E/MF2
Xiyuan Station Medical
Sample number
Energy number
Air quality/8
Hua Yan quality/multi
Transfer most/mia-1
Table pressure [MPa
Determination time
Date of determination, sample purchaser:
(hours)
Appendix B
(normative)
Natural desorption record of baking products
Natural desorption record of explosive samples
Sample date
Paste layer time
Sample arrival time
Real time of the sample
Viscosity rise
Displacement//min）
Interval time
Actual sample
Reading/CT
Opening time
Delay time/min
Sample depth/m
Density/(g/cm）
Honghe special certificate
Gas forest accumulation on-site identification room
Comparison person:
On-site air pressure
Fog elimination makeup page
Earn product editor
Fine layer disk/gas
Experimenter,
Adjust enough time
?(hour 1 minute:)
(normative with quantity)
Regulate the air to the fixed element Initial record table
Residual gas national standard record scene decline
Sample quality/8
Time
Quantity price
Auditor,
Disc layer name
Test date
Gas accumulation
Actual inspection room avoidance
GB/T195592004
Laboratory gas institute
Secondly, calculate the time of each measured point and the cumulative extracorporeal volume of each point (standard state): Then, according to the smallest interval of the small excavation mountain V, use the in-line method to find the corresponding time, which is the lowest.)
Details of the time the product is in transit. If it is not stored in the ambient temperature, it should be deducted from the cumulative time. The adsorption time does not include the same time as transportation. Otherwise, it can be dissatisfactory.
6.7 Calculation accuracy requirements
The data of the gas content in the drying layer should be guaranteed to be 2 digits.
7 The main documents of the determination of the gas content in the drying layer include
The original record of natural desorption (with carbon A or B), the original record of the residual gas width at the end (appendix), the desorption cable (period D, the calculation chart (appendix), the industrial analysis report, the gas component analysis report, the new gas content determination report (for element F, etc. Text description and related analysis, such as the description of the sampling situation, the description of the experimental process, etc., the daily quality evaluation speed
Detailed record of the sampling, determination and instrumentation in the basic implementation process The actual situation of the equipment gap is used as the basis for the quality evaluation of the measurement results. The quality review includes the following contents:
B.1 Sample collection quality review
8.1.1 The sample cannot be assembled in time. After the sample reaches the surface, it cannot be loaded and unloaded within JUtni. This should be noted in the record. 8.1.2 For the low sample, the actual situation should be noted. The reason why the corresponding analysis cannot be carried out in the quality evaluation period should be noted. 8.2 Special operation quality review
8.2.1 If the sample is too low, there will be a problem during the measurement process. If it cannot be handled in time, it should be stated in the report. The sample will be treated as a special sample. t:E production T E9559—2004
日.2.2 The measurement process should be noted, and the equipment should be operated to eliminate the gas. If the measurement information is inaccurate due to a fault, it should be explained: 8.3 Quality Engineer's Statement
B.3.1 Qualified Samples
If the problem in 8.1 or 8.2 is found in the process, the sample measured according to the specification can be directly used and regarded as a hot sample. 8.3.2 Test Samples
If there is a problem in the sample or the measurement process, resulting in the measurement not being carried out according to the specification, its measured value is only used as an example: This standard is mainly based on the determination of the core sample. The coal dust measurement value can be used as a reference for coalbed methane resource evaluation and production decision-making. 8.3. 3. If there is a need to read the sample, the sample temperature will be reported and the measured value will be invalid. Sampling location: Explosion depth/coal layer name: Determination period: sampling person: Attachment A (normative attachment) Explosion core sample mouth combustion and desorption source record: the most recent record: natural desorption source of coal core sample: sample number: frequency unit number. Pregnancy tank hanging/8: sample quality/g: time: time) network time: station time: overtime: time: arrival Estimated time
Equipment special time
GB/T19559—2004
Drilling volume at the same/min
Sample direction/mi
Moving layer humidity
Mining period
Three-body volume on-site travel
Partner:
Zhang Yang gas
Ck/I19559-2QQ4
Sample site
Coal seam name
Station E/MF2
Xiyuan Station Medical
Sample number
Energy number
Air quality/8
Hua Yan quality/multi
Transfer most/mia-1
Table pressure [MPa
Determination time
Date of determination, sample purchaser:
(hours)
Appendix B
(normative)
Natural desorption record of baking products
Natural desorption record of explosive samples
Sample date
Paste layer time
Sample arrival time
Real time of the sample
Viscosity rise
Displacement//min）
Interval time
Actual sample
Reading/CT
Opening time
Delay time/min
Sample depth/m
Density/(g/cm）
Honghe special certificate
Gas forest accumulation on-site identification room
Comparison person:
On-site air pressure
Fog elimination makeup page
Earn product editor
Fine layer disk/gas
Experimenter,
Adjust enough time
?(hour 1 minute:)
(normative with quantity)
Regulate the air to the fixed element Initial record table
Residual gas national standard record scene decline
Sample quality/8
Time
Quantity price
Auditor,
Disc layer name
Test date
Gas accumulation
Actual inspection room avoidance
GB/T195592004
Laboratory gas institute
Secondly, calculate the time of each measured point and the cumulative extracorporeal volume of each point (standard state): Then, according to the smallest interval of the small excavation mountain V, use the in-line method to find the corresponding time, which is the lowest.)
Details of the time the product is in transit. If it is not stored in the ambient temperature, it should be deducted from the cumulative time. The adsorption time does not include the same time as transportation. Otherwise, it can be dissatisfactory.
6.7 Calculation accuracy requirements
The data of the gas content in the drying layer should be guaranteed to be 2 digits.
7 The main documents of the determination of the gas content in the drying layer include
The original record of natural desorption (with carbon A or B), the original record of the residual gas width at the end (appendix), the desorption cable (period D, the calculation chart (appendix), the industrial analysis report, the gas component analysis report, the new gas content determination report (for element F, etc. Text description and related analysis, such as the description of the sampling situation, the description of the experimental process, etc., the daily quality evaluation speed
Detailed record of the sampling, determination and instrumentation in the basic implementation process The actual situation of the equipment gap is used as the basis for the quality evaluation of the measurement results. The quality review includes the following contents: bZxz.net
B.1 Sample collection quality review
8.1.1 The sample cannot be assembled in time. After the sample reaches the surface, it cannot be loaded and unloaded within JUtni. This should be noted in the record. 8.1.2 For the low sample, the actual situation should be noted. The reason why the corresponding analysis cannot be carried out in the quality evaluation period should be noted. 8.2 Special operation quality review
8.2.1 If the sample is too low, there will be a problem during the measurement process. If it cannot be handled in time, it should be stated in the report. The sample will be treated as a special sample. t:E production T E9559—2004
日.2.2 The measurement process should be noted, and the equipment should be operated to eliminate the gas. If the measurement information is inaccurate due to a fault, it should be explained: 8.3 Quality Engineer's Statement
B.3.1 Qualified Samples
If the problem in 8.1 or 8.2 is found in the process, the sample measured according to the specification can be directly used and regarded as a hot sample. 8.3.2 Test Samples
If there is a problem in the sample or the measurement process, resulting in the measurement not being carried out according to the specification, its measured value is only used as an example: This standard is mainly based on the determination of the core sample. The coal dust measurement value can be used as a reference for coalbed methane resource evaluation and production decision-making. 8.3. 3. If there is a need to read the sample, the sample temperature will be reported and the measured value will be invalid. Sampling location: Explosion depth/coal layer name: Determination period: sampling person: Attachment A (normative attachment) Explosion core sample mouth combustion and desorption source record: the most recent record: natural desorption source of coal core sample: sample number: frequency unit number. Pregnancy tank hanging/8: sample quality/g: time: time) network time: station time: overtime: time: arrival Estimated time
Equipment special time
GB/T19559—2004
Drilling volume at the same/min
Sample direction/mi
Moving layer humidity
Mining period
Three-body volume on-site travel
Partner:
Zhang Yang gas
Ck/I19559-2QQ4
Sample site
Coal seam name
Station E/MF2
Xiyuan Station Medical
Sample number
Energy number
Air quality/8
Hua Yan quality/multi
Transfer most/mia-1
Table pressure [MPa
Determination time
Date of determination, sample purchaser:
(hours)
Appendix B
(normative)
Natural desorption record of baking products
Natural desorption record of explosive samples
Sample date
Paste layer time
Sample arrival time
Real time of the sample
Viscosity rise
Displacement//min）
Interval time
Actual sample
Reading/CT
Opening time
Delay time/min
Sample depth/m
Density/(g/cm）
Honghe special certificate
Gas forest accumulation on-site identification room
Comparison person:
On-site air pressure
Fog elimination makeup page
Earn product editor
Fine layer disk/gas
Experimenter,
Adjust enough time
?(hour 1 minute:)
(normative with quantity)
Regulate the air to the fixed element Initial record table
Residual gas national standard record scene decline
Sample quality/8
Time
Quantity price
Auditor,
Disc layer name
Test date
Gas accumulation
Actual inspection room avoidance
GB/T195592004
Laboratory gas instituteNote: Purchaser: (hours) Appendix B (normative) Sample desorption record for natural desorption of baking products Sample desorption record for natural desorption of baking products Date of sample delivery Time of application Sample arrival Time of sample Viscosity rise and displacement Volume/min) Interval time of corrosion Actual measurement of sample Volume/CT Opening time Delay time/min Sample depth/m Density/(g/cm) Baking special certificate Gas accumulation on-site identification room
Comparison person:
On-site air pressure
Fog extinguishing makeup page
Product code
Precision layer disk/gas
Experimenter,
Adjustment time
?(hour 1 minute:)
(Normative with quantity)
Reliable gas to the fixed element to record the quantity table
Residual gas national standard original record scene decline
Sample quality/8
Time
Quantity price number
Auditor,
Disc layer name
Test date
Gas accumulation
Actual inspection room avoidance
GB/T195592004
Laboratory gas instituteNote: Purchaser: (hours) Appendix B (normative) Sample desorption record for natural desorption of baking products Sample desorption record for natural desorption of baking products Date of sample delivery Time of application Sample arrival Time of sample Viscosity rise and displacement Volume/min) Interval time of corrosion Actual measurement of sample Volume/CT Opening time Delay time/min Sample depth/m Density/(g/cm) Baking special certificate Gas accumulation on-site identification room
Comparison person:
On-site air pressure
Fog extinguishing makeup page
Product code
Precision layer disk/gas
Experimenter,
Adjustment time
?(hour 1 minute:)
(Normative with quantity)
Reliable gas to the fixed element to record the quantity table
Residual gas national standard original record scene decline
Sample quality/8
Time
Quantity price number
Auditor,
Disc layer name
Test date
Gas accumulation
Actual inspection room avoidance
GB/T195592004
Laboratory gas institute
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.