CN106886046A - Determine that fractured-cavernous reservoir is not gone into operation the method and device of block available reserves - Google Patents
Determine that fractured-cavernous reservoir is not gone into operation the method and device of block available reserves Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 44
- 239000007789 gas Substances 0.000 claims description 28
- 238000004458 analytical method Methods 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 238000005553 drilling Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 230000001186 cumulative effect Effects 0.000 claims description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000003345 natural gas Substances 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims description 2
- 241000208340 Araliaceae Species 0.000 claims 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims 1
- 235000003140 Panax quinquefolius Nutrition 0.000 claims 1
- 235000008434 ginseng Nutrition 0.000 claims 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract description 7
- 238000011161 development Methods 0.000 abstract description 3
- 230000014509 gene expression Effects 0.000 description 4
- 208000010392 Bone Fractures Diseases 0.000 description 3
- 206010017076 Fracture Diseases 0.000 description 3
- 238000012407 engineering method Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000012417 linear regression Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 208000006670 Multiple fractures Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000000205 computational method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
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- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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- 238000004448 titration Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/28—Processing seismic data, e.g. for interpretation or for event detection
- G01V1/30—Analysis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/60—Analysis
- G01V2210/62—Physical property of subsurface
- G01V2210/622—Velocity, density or impedance
- G01V2210/6226—Impedance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/60—Analysis
- G01V2210/62—Physical property of subsurface
- G01V2210/624—Reservoir parameters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/60—Analysis
- G01V2210/62—Physical property of subsurface
- G01V2210/624—Reservoir parameters
- G01V2210/6244—Porosity
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Abstract
Determine that fractured-cavernous reservoir is not gone into operation the method and device of block available reserves the invention provides a kind of, methods described includes：Determine Reservoir type；Obtain the engraving volume of operation block earthquake and mining-employed reserves parameter；Volume and mining-employed reserves relation are carved according to development block different reservoir type earthquake, prediction model parameterses are determined；According to block earthquake engraving volume and the Reservoir type of not going into operation, with reference to fit correlation and key parameter, the available reserves of untapped block is determined.It is of the present invention to determine that the do not go into operation method and device of block available reserves of fractured-cavernous reservoir be realized not going into operation fracture hole type carbonate gas reservoirs the quantitative calculating of block available reserves.
Description
Technical field
It is particularly a kind of to determine that fractured-cavernous reservoir block of not going into operation is movable the present invention relates to Reservoir Development technical field
With the method for reserves, or a kind of determine that fractured-cavernous reservoir is not gone into operation the device of block available reserves.
Background technology
Fracture-cavity type carbonate gas reservoir is a kind of special gas reservoir with corrosion hole, solution cavity and crack as reservoir space, main
It is distributed in Tarim Basin, the Sichuan Basin and Bohai gulf basin.Generally there is following feature：One is reservoir space dimensional variation
Greatly, and spatially there is extremely strong anisotropism；Two is that difference is big between production law complexity, well.Single well-controlled scope has
Limit is general that " point stick together shape " distribution is presented.
At present, the research both at home and abroad for the evaluation of fracture-cavity type carbonate gas reservoir available reserves is relatively fewer, due to this
Class Gas Reservoir has extremely strong anisotropism, and normal gas pools evaluation method is difficult the available reserves of accurate evaluation block, causes
The index Design when development plan is worked out is set deviation occur.So, how accurately to evaluate fractured-cavernous reservoir and do not go into operation area or throwing
The available reserves situation of early stage is produced, to size of capacity great significance for design.
The content of the invention
In order to solve cannot to determine in the prior art that fractured-cavernous reservoir is not gone into operation area or the available reserves of early stage of going into operation
Problem, the method and device of block available reserves of not gone into operation the invention provides a kind of determination fractured-cavernous reservoir, using the party
Method and device can determine not go into operation the available reserves scale of block, realize to carbonate rock fractured cave type gas reservoir available reserves
Quantitative calculating, solve the inapplicable complexity fractured-cavernous reservoir of conventional reservoir engineering method and available reserves scale be difficult to determine
Problem.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of to determine that fractured-cavernous reservoir is not gone into operation the method for block available reserves, the determination fractured-cavernous reservoir is not gone into operation area
The method of block available reserves is comprised the following steps：
Step 1, determine Reservoir type；
Step 2, acquisition earthquake engraving volume；
Step 3, calculate brought in well available reserves；
Step 4, fitting key parameter；
Step 5, calculating are not gone into operation block available reserves.
A kind of to determine that fractured-cavernous reservoir is not gone into operation the device of block available reserves, the determination fractured-cavernous reservoir is not gone into operation
The device of block available reserves can realize above-mentioned method, and the determination fractured-cavernous reservoir is not gone into operation block available reserves
Device includes：
Reservoir type analysis module, the reserves type for determining operation block and block of not going into operation；
Operation component analysis module, earthquake engraving volume for the block that determines to have been gone into operation in target area and has gone into operation
Well available reserves；
Key parameter fitting module, for carving body according to the earthquake of the reserves type, the block of operation
Relation between the long-pending and available reserves of brought in well determines key parameter；
Computing module, the earthquake engraving volume for combining block of not going into operation according to the key parameter determines area of not going into operation
Block available reserves.
The beneficial effects of the invention are as follows：Advised using the method and device can determine the not go into operation available reserves of block
Mould, realizes the quantitative calculating to carbonate rock fractured cave type gas reservoir available reserves, solves conventional reservoir engineering method and does not apply to
Complicated fractured-cavernous reservoir and available reserves scale are difficult to the problem for determining.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing a further understanding of the present invention, of the invention to show
Meaning property and its illustrates, for explaining the present invention, not constitute inappropriate limitation of the present invention embodiment.
Fig. 1 is the process chart of fractured-cavernous reservoir available reserves computational methods in the present invention.
Fig. 2 is the determination Reservoir type analysis process figure in the present invention.
Fig. 3 is the earthquake engraving volumetric analysis flow chart in the present invention.
Fig. 4 is the key parameter analysis process figure in the present invention.
Fig. 5 is the key parameter matched curve schematic diagram in the present invention.
Fig. 6 is the block available reserves analysis process figure of not going into operation in the present invention.
Fig. 7 is the block available reserves calculated curve of not going into operation in the present invention.
Fig. 8 is the module map of the device of determination available reserves in the present invention.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It is a kind of to determine that fractured-cavernous reservoir is not gone into operation the method for block available reserves, is comprised the following steps：
Step 1, determine Reservoir type；
Step 2, acquisition earthquake engraving volume；
Step 3, calculate brought in well available reserves；
Step 4, fitting key parameter；
Step 5, calculating are not gone into operation block available reserves, as shown in Figure 1.
In step 1, the seismic reflection type and characteristic of production dynamic according to reservoir are by the Reservoir type of operation block
Constant volume type, aqueous type or supply type are divided into, the Reservoir type of block of not going into operation is divided according to earthquake reflection type
Be constant volume type, aqueous type or supply type, as shown in Figure 2.
Specifically, the seismic reflection type of the block that ought go into operation be " beading ", exist in drilling process drilling tool emptying or
Mud is missed, and when cumulative gas during pilot production and pressure drop are in linear relation, the Reservoir type is constant volume types of reservoir；
When the seismic reflection type of operation block is " a deep beading ", there is drilling tool emptying or mud leakage in drilling process, in examination
Cumulative gas is in linear relation with pressure drop during adopting and when producing water, the Reservoir type is aqueous types of reservoir；When having thrown
Block seismic reflection type in producing region is combined for " beading ", there is drilling tool emptying or mud leakage in drilling process, in pilot production process
When middle cumulative gas is in non-rectilinear relation with pressure drop, the Reservoir type is supply types of reservoir.
For fracture-cavity type carbonate gas reservoir, different reservoir type is showed in seismic reflection type and characteristic of production dynamic
Constant volume type, aqueous type and supply type can be divided into.The Reservoir Body internal access of constant volume type is had friendly relations, surrounding matrix physical property
Difference；There is the water body of certain scale in the Reservoir Body bottom of aqueous type；Supply type refers generally to multiple fracture hole body connections, and fluid exists
With certain resistance during internal flow.
Specifically, firstly, for block of having gone into operation, reservoir can be recognized by seismic reflection type and characteristic of production dynamic
Type is the aqueous type of constant volume type or supply type；Secondly, for block of not going into operation, can be by seismic reflection class
Type combines operation block reservoir type analogy analysis, and identification Reservoir type is the aqueous type of constant volume type or supply class
Type.
In step 2, according to wave impedance and porosity dependency relation formula, operation block and block of not going into operation are calculated
Earthquake engraving volume.I.e. seismic interpretation result can provide Acoustic Impedance Data, according to well point wave impedance and well logging porosity data
Wave impedance and porosity dependency relation formula can be determined, the wave resistance of operation block and block of not going into operation is combined using the relational expression
Anti- data, it may be determined that the porosity data of respective area, porosity and the reservoir volume product of respective block are earthquake engraving
Volume, such as the reservoir volume product of the porosity of the operation block and operation block as earthquake engraving body of operation block
Product.
Specifically, first, according to operation block seismic impedance data, with reference to Acoustic Impedance Data and porosity relational expression
(generally being obtained by laboratory core analysis), earthquake engraving volume (the i.e. earthquake of operation block of the block that can have been gone into operation
Engraving pore volume)；Secondly, according to block seismic impedance data of not going into operation, with reference to operation block Acoustic Impedance Data and hole
Porosity relational expression, the earthquake engraving volume (the earthquake engraving pore volume of block of not going into operation) of the block that can not gone into operation,
As shown in Figure 3.
In step 3, using Blasingame (Blasingame) Production Decline Analysis method, with X, Y as reference axis
Plane right-angle coordinate in drawRelation curve,It is the coordinate value in X-axis,
It is the coordinate value in Y-axis, by the available reserves of curve matching, iterative calculation and calculated brought in well；
CtiIt is system compressibility under initial condition, unit is MPa–1；
Q is the daily output, and unit is m3/d；
ΔppFor Regularization pseudopressure is poor, unit is MPa；
tcaIt it is the Regularization pseudotime, unit is hour；
G is gas in-place, and unit is 108m3。
Specifically, step 3 is comprised the following steps：
Step 3.1, Natural Gas Prediction oil in place G, provide predicted value；
Step 3.2, according to the Regularization pseudotime, Regularization pseudopressure difference and cumulative production, calculate under different timetca,
Step 3.3, the drafting in the plane right-angle coordinate with X, Y as reference axisRelation curve,
The relation curve and the initial available reserves G that the intercept of X-axis is brought in well1；
Step 3.4, the relation curve is set to obtain best fit, and initial available reserves of extrapolating obtains new movable
Use reserves G2；
Step 3.5, use the new available reserves G2, repeat step 3.4, until the new available reserves G2Convergence
Untill；
Final available reserves G is obtained after step 3.6, convergence3It is the operation individual well available reserves, this has been gone into operation
It is block brought in well available reserves after individual well available reserves is cumulative.
In step 4, earthquake engraving volume is consistent with original fractured-cavernous reservoir reservoir space volume.It is former based on material balance
Reason, can analyze three kinds of Reservoir type earthquake engraving volumes of operation block and available reserves relation.Specific theory relation
Formula is as follows：
The gas well available reserves of the reservoir of constant volume type and earthquake engraving volume between relation be：
The gas well available reserves of the reservoir of aqueous type and earthquake engraving volume between relation be：
Supply type reservoir gas well available reserves and earthquake engraving volume between relation be：
GgIt is gas well available reserves, unit is 108m3；
GpTo have produced natural gas cumulative production, unit is 108m3；
VDFor volume is carved in earthquake, unit is 108m3；
It is volume factor under the conditions of original formation pressure；
It is current condition of formation pressure lower volume coefficient；
H is average external volume conversion coefficient；
N is mean water volume multiple；
M is average supply volume multiple.
Earthquake engraving volume is fitted with the gas well available reserves of brought in well, key parameter is obtained, works as storage
When channel type is constant volume type, the key parameter is average external volume conversion coefficient；When Reservoir type is aqueous type, the key
Parameter is mean water volume multiple parameter；When Reservoir type is for supply type, the key parameter is average supply volume times
Number parameter.Specifically, as shown in Figure 4 to block key parameter analysis process figure of having gone into operation.First, according to operation block earthquake
Engraving volume, is the brought in well available reserves parameter of constant volume type with reference to Reservoir type, and linear regression is carried out according to formula one,
Obtain average external volume conversion coefficient.Secondly, volume is carved according to operation block earthquake, is aqueous type with reference to Reservoir type
Brought in well available reserves parameter, linear regression is carried out according to formula two, obtains mean water volume multiple parameter.Finally, root
Volume is carved according to operation block earthquake, is the brought in well available reserves parameter for supplying type with reference to Reservoir type, according to public affairs
Formula three carries out linear regression, obtains averagely supplying volume multiple parameter.Key parameter matched curve such as Fig. 5 institutes in the present embodiment
Show, block constant volume types of reservoir average external volume of having been gone into operation conversion coefficient is 0.03, aqueous types of reservoir mean water volume
Multiple is 1.1, and it is 0.2 that supply types of reservoir averagely supplies volume multiple.
In steps of 5, by the constant volume reservoir of block of not going into operation, aqueous reservoir or supply reservoir earthquake engraving volume number and
Corresponding key parameter is brought into step 4 in corresponding three relational expressions, so as to the constant volume reservoir, aqueous of block of not gone into operation
The available reserves of reservoir or supply reservoir.For example, when the Reservoir type of block of not going into operation is aqueous types of reservoir, this is not thrown
Key parameter (the N of the aqueous types of reservoir of the earthquake engraving volume and the block of not going into operation of producing region block：Mean water volume times
Number) bring formula two into, because the parameter on the right side of equal sign in formula two can be by block or the operation block reality of not going into operation
Border measurement is obtained, such that it is able to calculate the available reserves of aqueous types of reservoir.
Specifically, block available reserves analysis process figure of not going into operation is as shown in Figure 6.The operation for obtaining will have been analyzed
Volume and available reserves fit correlation parameter are carved in the earthquake of block different reservoir type, with block earthquake engraving volume of not going into operation
With reference to the available reserves of block different reservoir type of not going into operation can be calculated.Block of not gone into operation in the present embodiment is movable
With reserves calculated curve, as shown in fig. 7, prediction is not gone into operation, block earthquake engraving volume is 2798 × 104m3, it is calculated and does not go into operation
Block available reserves is 72 × 108m3。
Above mentioned embodiment provide a kind of method for determining fractured-cavernous reservoir available reserves, there is provided according to area of having gone into operation
Volume and available reserves fit correlation are carved in block earthquake, it is determined that the analysis method and flow of block available reserves of not going into operation,
Can determine not go into operation the available reserves scale of block using the method, it is possible to achieve movable to carbonate rock fractured cave type gas reservoir
With the quantitative calculating of reserves, solve the inapplicable complexity fractured-cavernous reservoir of conventional reservoir engineering method and available reserves scale is difficult
With the problem for determining.
Be described below it is a kind of determine that fractured-cavernous reservoir is not gone into operation the device of block available reserves, including：
Reservoir type analysis module, operation component analysis module, key parameter fitting module and component analysis of not going into operation
Module, as shown in Figure 8.
The Reservoir type analysis module, the reserves type of be determined for having gone into operation block and block of not going into operation.
The component analysis module of operation, is determined for the ground of target area operation block different reservoir type
The parameters such as shake engraving volume, available reserves.
The key parameter fitting module, can be used for combining the Reservoir type and the target area and has gone into operation area
The parameters such as earthquake engraving volume, the available reserves of block different reservoir type, determine that earthquake engraving volume is closed with available reserves
System, determines key parameter.
The computing module, can be used for the key parameter determined according to the key parameter fitting module, with reference to not throwing
Producing region block earthquake engraving volume, it is determined that block available reserves scale of not going into operation.
The component analysis of the operation module can also determine the earthquake engraving body of the block of not going into operation in target area
Product.
Determination fractured-cavernous reservoir in above-described embodiment do not go into operation block available reserves device with it is of the present invention
Determine fractured-cavernous reservoir do not go into operation block available reserves method it is corresponding, i.e., the determination fractured-cavernous reservoir do not go into operation block can
Can realize that the determination fractured-cavernous reservoir is not gone into operation the method for block available reserves during the device busy of mining-employed reserves, should
Determine that the do not go into operation device of block available reserves of fractured-cavernous reservoir can also obtain the technique effect of the above method.The present invention can
With the available reserves of the block that according to the available reserves of block of having been gone into operation in a-quadrant determines not gone into operation in a-quadrant, need it is true
Determine not gone into operation in B regions block available reserves when, then need the available reserves again according to block of having been gone into operation in B regions
Determine not gone into operation in B regions the available reserves of block.Want to determine the available reserves of block of not gone into operation in which region,
The available reserves again according to block of having been gone into operation in the region is then needed to determine not gone into operation in the region the employed storage of block
Amount.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment
Divide mutually referring to what each embodiment was stressed is the difference with other embodiment.Especially for system reality
Apply for example, because it is substantially similar to embodiment of the method, so description is fairly simple, related part is referring to embodiment of the method
Part explanation.
Method described herein can be used in numerous general or special purpose computing system environments or configuration.For example：
Personal computer, server computer, handheld device or portable set, laptop device, multicomputer system, based on micro- place
Manage the system of device, set top box, programmable consumer-elcetronics devices, network PC, minicom, mainframe computer, include more than
DCE of any system or equipment etc..
The application can be described in the general context of computer executable instructions, such as program
Module.Usually, program module includes performing particular task or realizes routine, program, object, the group of particular abstract data type
Part, data structure etc..The application can also be in a distributed computing environment put into practice, in these DCEs, by
Remote processing devices connected by communication network perform task.In a distributed computing environment, program module can be with
In local and remote computer-readable storage medium including including storage device.
The above, specific embodiment only of the invention, it is impossible to the scope that its restriction invention is implemented, so it is equivalent
The displacement of component, or the equivalent variations made according to scope of patent protection of the present invention and modification, should all still fall within what this patent was covered
Category.In addition, between technical characteristic and technical characteristic in the present invention, between technical characteristic and technical scheme, technical scheme with
Can be used with independent assortment between technical scheme.
Claims (9)
1. it is a kind of to determine that fractured-cavernous reservoir is not gone into operation the method for block available reserves, it is characterised in that the determination fracture hole type gas
The method for hiding block available reserves of not going into operation is comprised the following steps：
Step 1, determine Reservoir type；
Step 2, acquisition earthquake engraving volume；
Step 3, calculate brought in well available reserves；
Step 4, fitting key parameter；
Step 5, calculating are not gone into operation block available reserves.
It is 2. according to claim 1 to determine that fractured-cavernous reservoir is not gone into operation the method for block available reserves, it is characterised in that
In step 1, when the seismic reflection type of operation block is " beading ", there is drilling tool emptying or mud leakage in drilling process
Lose, when cumulative gas during pilot production and pressure drop are in linear relation, the Reservoir type is constant volume types of reservoir；When having thrown
The seismic reflection type of producing region block is " a deep beading ", there is drilling tool emptying or mud leakage in drilling process, in pilot production process
Middle cumulative gas is in linear relation with pressure drop and when producing water, the Reservoir type is aqueous types of reservoir；When block of having gone into operation
Seismic reflection type is combined for " beading ", there is drilling tool emptying or mud leakage in drilling process, is added up during pilot production
When gas production is in non-rectilinear relation with pressure drop, the Reservoir type is supply types of reservoir.
It is 3. according to claim 1 to determine that fractured-cavernous reservoir is not gone into operation the method for block available reserves, it is characterised in that
In step 2, the earthquake engraving volume is equal to the porosity of respective block and the product of reservoir volume.
It is 4. according to claim 3 to determine that fractured-cavernous reservoir is not gone into operation the method for block available reserves, it is characterised in that
In step 3, using Blasingame Production Decline Analysis methods, painted in the plane right-angle coordinate with X, Y as reference axis
SystemRelation curve,It is the coordinate value in X-axis,It is the coordinate value in Y-axis, leads to
Cross the available reserves of curve matching, iterative calculation and calculated brought in well；
CtiIt is system compressibility under initial condition, unit is MPa–1；
Q is the daily output, and unit is m3/d；
ΔppFor Regularization pseudopressure is poor, unit is MPa；
tcaIt it is the Regularization pseudotime, unit is hour.
It is 5. according to claim 4 to determine that fractured-cavernous reservoir is not gone into operation the method for block available reserves, it is characterised in that
Step 3 is comprised the following steps：
Step 3.1, Natural Gas Prediction oil in place, provide predicted value；
Step 3.2, calculate
Step 3.3, the drafting in the plane right-angle coordinate with X, Y as reference axisRelation curve, the pass
It is curve and the initial available reserves that the intercept of X-axis is brought in well；
Step 3.4, the relation curve is set to obtain best fit, and initial available reserves of extrapolating obtains new employed storage
Amount；
Step 3.5, use the new available reserves, repeat step 3.4, untill convergence；
It is the operation individual well available reserves that final available reserves is obtained after step 3.6, convergence, and operation individual well can for this
It is block brought in well available reserves after mining-employed reserves is cumulative.
It is 6. according to claim 5 to determine that fractured-cavernous reservoir is not gone into operation the method for block available reserves, it is characterised in that
In step 4,
The gas well available reserves of the reservoir of constant volume type and earthquake engraving volume between relation be：
The gas well available reserves of the reservoir of aqueous type and earthquake engraving volume between relation be：
Supply type reservoir gas well available reserves and earthquake engraving volume between relation be：
GgIt is gas well available reserves, unit is 108m3；
GpTo have produced natural gas cumulative production, unit is 108m3；
VDFor volume is carved in earthquake, unit is 108m3；
It is volume factor under the conditions of original formation pressure, without unit；
It is current condition of formation pressure lower volume coefficient, without unit；
H is average external volume conversion coefficient, without unit；
N is mean water volume multiple, without unit；
M is average supply volume multiple, without unit；
Earthquake engraving volume is fitted with the gas well available reserves of brought in well, key parameter is obtained, when reservoir class
When type is constant volume type, the key parameter is average external volume conversion coefficient；When Reservoir type is aqueous type, the key parameter
It is mean water volume multiple parameter；When Reservoir type is for supply type, the key parameter is average supply volume multiple ginseng
Number.
It is 7. according to claim 6 to determine that fractured-cavernous reservoir is not gone into operation the method for block available reserves, it is characterised in that
The average external volume conversion coefficient is 0.03, and the mean water volume multiple is 1.1, and the average supply volume multiple is
0.2。
It is 8. according to claim 6 to determine that fractured-cavernous reservoir is not gone into operation the method for block available reserves, it is characterised in that
In steps of 5, volume data combination step is carved into the earthquake of the constant volume reservoir of block of not going into operation, aqueous reservoir or supply reservoir
The corresponding fit correlation and key parameter obtained in 4, the constant volume reservoir of block of not gone into operation, aqueous reservoir or supply reservoir
Available reserves.
9. it is a kind of to determine that fractured-cavernous reservoir is not gone into operation the device of block available reserves, it is characterised in that the determination fracture hole type
Gas reservoir is not gone into operation the method that the device of block available reserves can be realized described in claim 1, the determination fractured-cavernous reservoir
The device of block available reserves of not going into operation includes：
Reservoir type analysis module, the reserves type for determining operation block and block of not going into operation；
Operation component analysis module, earthquake engraving volume for the block that determines to have been gone into operation in target area and brought in well can
Mining-employed reserves；
Key parameter fitting module, for according to the earthquake of the reserves type, the block of operation carve volume with it is described
The relation between brought in well available reserves determines key parameter；
Computing module, block is not gone into operation in the earthquake engraving volume determination for combining block of not going into operation according to the key parameter can
Mining-employed reserves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710063419.5A CN106886046B (en) | 2017-02-03 | 2017-02-03 | Determine that fractured-cavernous reservoir is not gone into operation the methods of block available reserves |
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