CN110322363A - Shale gas reservoir reconstruction volume calculation method and system - Google Patents

Shale gas reservoir reconstruction volume calculation method and system Download PDF

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CN110322363A
CN110322363A CN201810273203.6A CN201810273203A CN110322363A CN 110322363 A CN110322363 A CN 110322363A CN 201810273203 A CN201810273203 A CN 201810273203A CN 110322363 A CN110322363 A CN 110322363A
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well section
calculating parameter
section
sample well
analogy
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黄志文
苏建政
张汝生
刘长印
张永贵
孙志宇
李凤霞
赵梦云
李萍
范鑫
周彤
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China Petroleum and Chemical Corp
Sinopec Exploration and Production Research Institute
China Petrochemical Corp
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China Petrochemical Corp
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Abstract

Disclose a kind of shale gas reservoir reconstruction volume calculation method and system.This method comprises: establishing the sample data set comprising multiple sample well sections;For the calculating parameter of target well section and multiple sample well sections, standard target well section calculating parameter value and multiple groups master sample well section calculating parameter value are obtained;The similarity for calculating target well section and each sample well section, obtains preferred sample well section;According to the calculating parameter of the calculating parameter of target well section and preferred sample well section, the final evaluation of estimate of analogy minimum value and the final evaluation of estimate of analogy maximum value are calculated, obtains analogy section;According to the transformation volume of preferred sample well section and analogy section, the transformation volume of target well section is calculated.The present invention is by compiling the well section for having been carried out micro-seismic monitoring as sample well section, while obtaining monitoring explanation results, the engineering geology calculating parameter and pressing crack construction calculating parameter for compiling sample well section, carry out more calculating parameter analogies, to evaluate effect after shale gas reservoir pressure.

Description

Shale gas reservoir reconstruction volume calculation method and system
Technical field
The present invention relates to oil-gas field development fields, more particularly, to a kind of shale gas reservoir reconstruction volume calculation method And system.
Background technique
In conventional oil gas reservoir and DAMAGE OF TIGHT SAND GAS RESERVOIRS, the half long and flow conductivity in single layer crack is commonly used as volume increase pressure break Main description calculating parameter, but in shale gas reservoir these calculating parameters be not sufficient to preferably state volume increase feature.Page After rock gas well implements fracturing reform measure, fracturing work effect need to be determined with effective method, volume is transformed in quantization signifying, then Engineers and technicians propose transformation this calculating parameter of volume, that is, the size of the complex fracture volume generated can be approximate with one Three-dimensional volume (transformation volume, SRV) characterization.Transformation volume is the important computations parameter increased production in FRACTURING DESIGN, can Ginseng is calculated to analysis verifying FRACTURING DESIGN calculating parameter, feedback construction quality, inverting formation physical property calculating parameter and rock mechanics Number, study normal fracture propagation rule and evaluation fracturing effect, improve the offers such as stimulation work effect and gas well deliverability must The technological means wanted.Transformation volume can be measured by microseism figure, related with the Production development for being pumped into fluid volume and well.
Micro-seismic monitoring, fracturing process tracer monitoring, level are relied primarily on for the evaluation method of volume is transformed at present Production development analytical technology after Testing Evaluation technology, horizontal well pressure after well pressure.Microseism Fracturing Monitoring technology be exactly pass through observation, The small seismic events caused by rock rupture in fracturing process or bad break are analyzed to monitor the geophysics skill of underground state Art, this method are the methods of generally acknowledged at present most scientific effectively evaluating transformation volume, disadvantage be it is at high cost, can not be each All carry out monitoring on a mouthful of well.The row's of returning tracer monitoring technique is the tracer point that will be used to monitor multistage fracturing and return drain after pressure Interval is added in the oil well for implementing multistage fracturing measure, during fracturing fluid recovery (backflow), is periodically taken to fracturing outlet liquid Sample detected the content of a variety of tracer element complex compounds in samples taken, simultaneously according to showing for each interval detected The content of track element complex realizes the evaluation of fracturing reform volume, and this method explanation results quantization degree is low, to transformation volume Judgement uncertainty degree it is big.Well testing is one of the important means of Reservoir performance description and dynamic monitoring, is being based on shale gas Flow model in porous media theoretical calculation, pass through the bottom pressure of theory and technology and actual test be fitted method determine transformation volume. Production development analytical technology is consistent with the theoretical basis of Well Test Technology after horizontal well pressure, calculate in individual well or well group theoretical yield and The transformation volume of shale gas reservoir is obtained in the dynamic fit procedure of actual production.The method of well testing and production capacity dynamic analysis due to It is still immature in terms of theoretical model at present, therefore, given analysis result with practically under situation error it is larger.Cause This, it is necessary to develop a kind of shale gas reservoir reconstruction volume calculation method and system.
The information for being disclosed in background of invention part is merely intended to deepen the reason to general background technique of the invention Solution, and it is known to those skilled in the art existing to be not construed as recognizing or imply that the information is constituted in any form Technology.
Summary of the invention
The invention proposes a kind of shale gas reservoir reconstruction volume calculation methods, can be had been carried out by compiling The well section of micro-seismic monitoring compiles the engineering of sample well section while obtaining monitoring explanation results as sample well section Geological calculation parameter and pressing crack construction calculating parameter, carry out more calculating parameter analogies, to evaluate effect after shale gas reservoir pressure.
According to an aspect of the invention, it is proposed that a kind of shale gas reservoir reconstruction volume calculation method.The method can be with It include: to collect microseism data set, and then establish the sample data set comprising multiple sample well sections;For the calculating of target well section The calculating parameter of parameter and the multiple sample well section, is standardized by linear transformation, obtains standard target well section Calculating parameter value and multiple groups master sample well section calculating parameter value;Calculate each standard target well section meter of the target well section Calculate the similarity between parameter value and master sample well section calculating parameter value corresponding in a sample well section, preferably with the mesh The highest sample well section of well section similarity is marked, preferred sample well section is denoted as;According to the calculating parameter of the target well section with it is described It is preferred that the calculating parameter of sample well section, calculates analogy minimum value, the analogy maximum value of each calculating parameter, and then calculate analogy The final evaluation of estimate of minimum value and the final evaluation of estimate of analogy maximum value, obtain analogy section;According to the preferred sample well section Transformation volume and the analogy section, calculate the transformation volume of the target well section.
Preferably, the calculating parameter includes: target layer depth, reservoir thickness, Young's modulus, Poisson's ratio, drilling mud Density, well logging permeability, horizontally stress difference coefficient, vertical stress, long English matter content, carbonate rock content, fracture index, Pressure break number of segment, perforation number of clusters, horizontal section length, fracture pressure, termination of pumping pressure, smooth water consumption, linear glue dosage.
Preferably, it is standardized by formula (1), obtains standard target well section calculating parameter value and multiple groups standard Sample well section calculating parameter value:
Wherein, X' is standard target well section calculating parameter value or master sample well section calculating parameter value, and minA and maxA divide Not Wei the calculating parameter minimum value and maximum value, X be the calculating parameter original value.
Preferably, it calculates in each standard target well section calculating parameter value and a sample well section of the target well section Similarity between corresponding master sample well section calculating parameter value include: according to the calculating parameter establish sample well section YB and The similar finite element set of target well section MB;According to the similar finite element set, calculate similar in sample well section YB and target well section MB First characteristic value;According to the similar finite element characteristic value, feature similarity degree, each standard mesh of the as described target well section are calculated Mark the similarity between well section calculating parameter value and master sample well section calculating parameter value corresponding in the sample well section.
Preferably, the similar finite element set of the sample well section YB and target well section MB are as follows:
U=[ui] (2)
Wherein, U is similar finite element set, uiFor similar finite element, ui={ YBi,MBi, i expression calculating parameter serial number, i=1, 2 ..., 18.
Preferably, i-th of similar finite element characteristic value in sample well section YB and target well section MB are as follows:
Wherein, RiFor i-th of similar finite element characteristic value.
Preferably, the feature similarity degree of sample well section YB and target well section MB are as follows:
Wherein, Q is characterized similarity degree, and n is sample well section serial number.
Preferably, the analogy minimum value are as follows:
Analogy minimum value=min (target well section calculating parameter, preferably template well section calculating parameter)/max (target well section meter Calculate parameter, preferably template well section calculating parameter) (5);
The analogy maximum value are as follows:
Analogy minimum value=max (target well section calculating parameter, preferably template well section calculating parameter)/min (target well section meter Calculate parameter, preferably template well section calculating parameter) (6).
According to another aspect of the invention, it is proposed that a kind of shale gas reservoir reconstruction volume computing system, may include: to receive Collect unit, for collecting microseism data set, and then establishes the sample data set comprising multiple sample well sections;Linear transformation list Member is marked for the calculating parameter of calculating parameter and the multiple sample well section for target well section by linear transformation Quasi-ization processing, obtains standard target well section calculating parameter value and multiple groups master sample well section calculating parameter value;Similarity unit is used In calculating each standard target well section calculating parameter value of the target well section and corresponding standard sample in a sample well section Similarity between this well section calculating parameter value is denoted as preferably preferably with the highest sample well section of the target well section similarity Sample well section;Analogy unit, for the calculating parameter according to the calculating parameter of the target well section and the preferred sample well section, Analogy minimum value, the analogy maximum value of each calculating parameter are calculated, and then calculates the final evaluation of estimate and class of analogy minimum value Than the final evaluation of estimate of maximum value, analogy section is obtained;Computing unit, for the transformation volume according to the preferred sample well section With the analogy section, the transformation volume of the target well section is calculated.
Preferably, the calculating parameter includes: target layer depth, reservoir thickness, Young's modulus, Poisson's ratio, drilling mud Density, well logging permeability, horizontally stress difference coefficient, vertical stress, long English matter content, carbonate rock content, fracture index, Pressure break number of segment, perforation number of clusters, horizontal section length, fracture pressure, termination of pumping pressure, smooth water consumption, linear glue dosage.
Preferably, it is standardized by formula (1), obtains standard target well section calculating parameter value and multiple groups standard Sample well section calculating parameter value:
Wherein, X' is standard target well section calculating parameter value or master sample well section calculating parameter value, and minA and maxA divide Not Wei the calculating parameter minimum value and maximum value, X be the calculating parameter original value.
Preferably, it calculates in each standard target well section calculating parameter value and a sample well section of the target well section Similarity between corresponding master sample well section calculating parameter value include: according to the calculating parameter establish sample well section YB and The similar finite element set of target well section MB;According to the similar finite element set, calculate similar in sample well section YB and target well section MB First characteristic value;According to the similar finite element characteristic value, feature similarity degree, each standard mesh of the as described target well section are calculated Mark the similarity between well section calculating parameter value and master sample well section calculating parameter value corresponding in the sample well section.
Preferably, the similar finite element set of the sample well section YB and target well section MB are as follows:
U=[ui] (2)
Wherein, U is similar finite element set, uiFor similar finite element, ui={ YBi,MBi, i expression calculating parameter serial number, i=1, 2 ..., 18.
Preferably, i-th of similar finite element characteristic value in sample well section YB and target well section MB are as follows:
Wherein, RiFor i-th of similar finite element characteristic value.
Preferably, the feature similarity degree of sample well section YB and target well section MB are as follows:
Wherein, Q is characterized similarity degree, and n is sample well section serial number.
Preferably, the analogy minimum value are as follows:
Analogy minimum value=min (target well section calculating parameter, preferably template well section calculating parameter)/max (target well section meter Calculate parameter, preferably template well section calculating parameter) (5);
The analogy maximum value are as follows:
Analogy minimum value=max (target well section calculating parameter, preferably template well section calculating parameter)/min (target well section meter Calculate parameter, preferably template well section calculating parameter) (6).
The present invention has other characteristics and advantages, these characteristics and advantages are from the attached drawing and subsequent tool being incorporated herein It will be apparent, or will be carried out in body embodiment in the drawings and the subsequent detailed description incorporated herein Statement in detail, the drawings and the detailed description together serve to explain specific principles of the invention.
Detailed description of the invention
Exemplary embodiment of the present is described in more detail in conjunction with the accompanying drawings, of the invention is above-mentioned and other Purpose, feature and advantage will be apparent, wherein in exemplary embodiments of the present invention, identical reference label is usual Represent same parts.
Fig. 1 shows the flow chart of the step of shale gas reservoir reconstruction volume calculation method according to the present invention.
Specific embodiment
The present invention will be described in more detail below with reference to accompanying drawings.Although showing the preferred embodiment of the present invention in attached drawing, However, it is to be appreciated that may be realized in various forms the present invention and should not be limited by the embodiments set forth herein.On the contrary, providing These embodiments are of the invention more thorough and complete in order to make, and can will fully convey the scope of the invention to ability The technical staff in domain.
Fig. 1 shows the flow chart of the step of shale gas reservoir reconstruction volume calculation method according to the present invention.
In this embodiment, shale gas reservoir reconstruction volume calculation method according to the present invention may include: step 101, Microseism data set is collected, and then establishes the sample data set comprising multiple sample well sections;Step 102, for target well section The calculating parameter of calculating parameter and multiple sample well sections, is standardized by linear transformation, obtains standard target well section Calculating parameter value and multiple groups master sample well section calculating parameter value;Step 103, each standard target well of target well section is calculated Section calculating parameter value and master sample well section calculating parameter value corresponding in a sample well section between similarity, preferably with mesh The highest sample well section of well section similarity is marked, preferred sample well section is denoted as;Step 104, according to the calculating parameter of target well section with It is preferred that the calculating parameter of sample well section, calculates analogy minimum value, the analogy maximum value of each calculating parameter, and then calculate analogy The final evaluation of estimate of minimum value and the final evaluation of estimate of analogy maximum value, obtain analogy section;Step 105, according to preferred sample The transformation volume of well section and analogy section calculate the transformation volume of target well section.
In one example, calculating parameter includes: target layer depth, reservoir thickness, Young's modulus, Poisson's ratio, drilling well mud Pulp density, well logging permeability, horizontally stress difference coefficient, vertical stress, long English matter content, carbonate rock content, crack refer to Number, pressure break number of segment, perforation number of clusters, horizontal section length, fracture pressure, termination of pumping pressure, smooth water consumption, linear glue dosage.
In one example, it is standardized by formula (1), obtains standard target well section calculating parameter value and more Group master sample well section calculating parameter value:
Wherein, X' is standard target well section calculating parameter value or master sample well section calculating parameter value, and minA and maxA divide Not Wei the calculating parameter minimum value and maximum value, X be the calculating parameter original value.
In one example, each standard target well section calculating parameter value and a sample well section of target well section are calculated In similarity between corresponding master sample well section calculating parameter value include: that sample well section YB and mesh are established according to calculating parameter Mark the similar finite element set of well section MB;According to similar finite element set, the similar finite element feature in sample well section YB and target well section MB is calculated Value;According to similar finite element characteristic value, feature similarity degree, as each standard target well section calculating parameter of target well section are calculated It is worth and the similarity between master sample well section calculating parameter value corresponding in the sample well section.
In one example, the similar finite element set of sample well section YB and target well section MB are as follows:
U=[ui] (2)
Wherein, U is similar finite element set, uiFor similar finite element, ui={ YBi,MBi, i expression calculating parameter serial number, i=1, 2 ..., 18.
In one example, i-th of similar finite element characteristic value in sample well section YB and target well section MB are as follows:
Wherein, RiFor i-th of similar finite element characteristic value.
In one example, the feature similarity degree of sample well section YB and target well section MB are as follows:
Wherein, Q is characterized similarity degree, and n is sample well section serial number.
In one example, analogy minimum value are as follows:
Analogy minimum value=min (target well section calculating parameter, preferably template well section calculating parameter)/max (target well section meter Calculate parameter, preferably template well section calculating parameter) (5);
Analogy maximum value are as follows:
Analogy minimum value=max (target well section calculating parameter, preferably template well section calculating parameter)/min (target well section meter Calculate parameter, preferably template well section calculating parameter) (6).
Specifically, shale gas reservoir reconstruction volume calculation method according to the present invention may include: to collect microseism data Collection, and then establish the sample data set comprising multiple sample well sections;Calculating parameter and multiple sample well sections for target well section Calculating parameter, be standardized by linear transformation, obtain standard target well section calculating parameter value and multiple groups standard sample This well section calculating parameter value, wherein calculating parameter includes engineering geology calculating parameter and pressing crack construction calculating parameter, wherein work Journey geological calculation parameter includes target layer depth, reservoir thickness, Young's modulus, Poisson's ratio, wellbore mud density, well logging infiltration Rate, horizontally stress difference coefficient, vertical stress, long English matter content, carbonate rock content, fracture index, pressing crack construction calculate Parameter includes pressure break number of segment, perforation number of clusters, horizontal section length, fracture pressure, termination of pumping pressure, smooth water consumption, linear glue use Amount, and then be standardized according to above-mentioned calculating parameter by formula (1), obtain standard target well section calculating parameter value with Multiple groups master sample well section calculating parameter value, wherein minA and maxA is respectively that sample data concentrates each well section and target well section In the calculating parameter minimum value and maximum value.
According to science of similarity theory, similarity quantitative approach analogy well section is used to the calculating parameter after normalized Calculating parameter evaluation of estimate: calculate target well section each standard target well section calculating parameter value with it is right in a sample well section The similarity between master sample well section calculating parameter value answered, establishes sample well section YB and target well section MB according to calculating parameter Similar finite element collection be combined into formula (2);According to similar finite element set, the similar finite element feature in sample well section YB and target well section MB is calculated Value, wherein i-th of similar finite element characteristic value is formula (3);According to similar finite element characteristic value, calculating feature similarity degree is formula (4), the as similarity of target well section and the sample well section, and then it is similar to each sample well section to calculate target well section Degree, acquisition and the highest sample well section of target well section similarity, are denoted as preferred sample well section.According to the calculating parameter of target well section With the calculating parameter of preferred sample well section, the analogy minimum value for calculating each calculating parameter according to formula (5), (6), analogy are most Big value, and then the final evaluation of estimate of analogy minimum value and the final evaluation of estimate of analogy maximum value are calculated, and then obtain analogy section, The process can also consider the influence of key factor, carry out in the otherness of calculating parameter collection according to the professional recognition of expert The adjustment of Weight of Expert calculates analogy section using weighted average algorithm;By the transformation volume and analogy of preferred sample well section Section is multiplied, and calculates the transformation volume of target well section.
The present invention, which passes through, compiles the well section for having been carried out micro-seismic monitoring as sample well section, explains obtaining monitoring As a result while, the engineering geology calculating parameter and pressing crack construction calculating parameter of sample well section are compiled, calculate is carried out more and joins Several classes of ratios, to evaluate effect after shale gas reservoir pressure.
Using example
A concrete application example is given below in the scheme and its effect of the embodiment of the present invention for ease of understanding.This field It should be understood to the one skilled in the art that the example is only for the purposes of understanding the present invention, any detail is not intended to be limited in any way The system present invention.
Collect the 5 mouthfuls of well engineering geology calculating parameters and pressing crack construction calculating parameter of certain shale gas development block, these samples The micro-seismic monitoring that this well is implemented in fracturing process, collected engineering geology calculating parameter and pressing crack construction calculating parameter Respectively as shown in table 1 and table 2:
Table 1
Calculating parameter XX-1 well XX-2 well XX-3 well XX-4 well XX-5 well
Target layer depth/m 2832 2633 2646 2678 2889
Reservoir thickness/m 9.5 14 14.5 6 10
Young's modulus/GPa 35.5 32.1 34.6 31.3 33.8
Poisson's ratio 0.18 0.19 0.21 0.17 0.18
Wellbore mud density/g/cm3 1.46 1.42 1.36 1.25 1.36
Log well permeability/mD 0.10 0.16 0.18 0.01 0.20
Horizontal stress coefficient of variation 0.09 0.11 0.06 0.10 0.13
Vertical stress/MPa 50.1667 53.6767 49.2467 51.7367 50.1667
Long English matter content/% 51.85 50.79 61.75 60.67 61.18
Carbonate rock content/% 1.95 18.31 9.48 10.83 11.13
Fracture index 0.41 0.46 0.40 0.49 0.44
Table 2
Calculating parameter XX-1 well XX-2 well XX-3 well XX-4 well XX-5 well
Pressure break number of segment/section 15 21 22 14 18
Perforation number of clusters/cluster 43 56 59 39 53
Horizontal section length/m 1406.5 1474 1462 1357.5 1511
Fracture pressure/MPa 51.45 68.49 62.49 79.11 57.25
Termination of pumping pressure/MPa 31.03 37.26 30.58 34.74 28.73
Smooth water consumption/m3 21398.79 30369 32733.4 19821.5 28927.7
Linear glue dosage/m3 6054.84 7916 6113.2 4028.9 3544.03
The transformation volume of each well is as shown in table 3:
Table 3
Calculating parameter XX-1 well XX-2 well XX-3 well XX-4 well XX-5 well
Volume/m is transformed3 53131060 32742413 26399738 19853456 25984331
The geological calculation parameter and pressing crack construction calculating parameter of the quasi- target well section for calculating transformation volume are as follows: target layer depth 2889m, reservoir thickness 0.2m, Young's modulus 33.5GPa, 0.19 dimensionless of Poisson's ratio are spent, wellbore mud density 1.40gcm3 is surveyed Well permeability 0.17mD, horizontal stress coefficient of variation 0.12, vertical stress 49.67MPa, long English matter content 56.85%, carbonate Rock content 4.95%, 0.35 dimensionless of fracture index, 17 sections of pressure break number of segment, 46 cluster of perforation number of clusters, horizontal section length 1489.5m, fracture pressure 45.45MPa, termination of pumping pressure 35.03MPa, smooth water consumption 2308.79m3, linear glue dosage 7623.09m3
Linear transformation is carried out to sample calculating parameter collection using well standardized method.Standard target well section calculating parameter value with Multiple groups master sample well section calculating parameter value is as shown in table 4:
Table 4
Calculating parameter XX-1 well XX-2 well XX-3 well XX-4 well XX-5 well
Target layer depth/m 0.777 0.000 0.051 0.051 1.000
Reservoir thickness/m 0.412 0.941 1.000 1.000 0.471
Young's modulus/GPa 1.000 0.190 0.786 0.786 0.595
Poisson's ratio/dimensionless 0.250 0.500 1.000 1.000 0.250
Wellbore mud density/g/cm3 1.000 0.810 0.524 0.524 0.524
Log well permeability/mD 0.474 0.789 0.895 0.895 1.000
Horizontal stress coefficient of variation 0.429 0.714 0.000 0.000 1.000
Vertical stress/MPa 0.208 1.000 0.000 0.000 0.208
Long English matter content/% 0.097 0.000 1.000 1.000 0.948
Carbonate rock content/% 0.000 1.000 0.460 0.460 0.561
Fracture index/dimensionless 0.111 0.667 0.000 0.000 0.444
Pressure break number of segment/section 0.125 0.875 1.000 1.000 0.500
Perforation number of clusters/cluster 0.200 0.850 1.000 1.000 0.700
Horizontal section length/m 0.319 0.759 0.681 0.681 1.000
Fracture pressure/MPa 0.000 0.616 0.399 0.399 0.210
Termination of pumping pressure/MPa 0.270 1.000 0.217 0.217 0.000
Smooth water consumption/m3 0.122 0.817 1.000 1.000 0.705
Linear glue dosage/m3 0.574 1.000 0.588 0.588 0.000
According to science of similarity theory, the similarity of target well section and each sample well section, obtained similarity are calculated As a result are as follows: XX-1 well: 0.91, XX-2 well: 0.78, XX-3 well: 0.87, XX-4 well: 0.72, XX-5 well: 0.83.
It is ranked up according to similarity calculation result are as follows:
XX-1 well > XX-3 well > XX-5 well > XX-2 well > XX-4 well.
It is therefore preferable that XX-1 well connects with target well section in engineering geology calculating parameter and pressing crack construction calculating parameter the most out Close sample well, note XX-1 well are preferred sample well section.
According to the calculating parameter of the calculating parameter of target well section and preferred sample well section, the class of each calculating parameter is calculated Than minimum value, analogy maximum value, and then the final evaluation of estimate of analogy minimum value and the final evaluation of estimate of analogy maximum value are calculated, such as Shown in table 5, and then obtaining analogy section is 0.89-1.12.
Table 5
It is 5.3 × 10 according to the Crack Monitoring result of the sample well XX-1 preferably gone out7m3, so the variant of target well section Product is 4.71-5.93 × 107m3Between.
In conclusion the present invention is being obtained by compiling the well section for having been carried out micro-seismic monitoring as sample well section While taking monitoring explanation results, the engineering geology calculating parameter and pressing crack construction calculating parameter of sample well section are compiled, into The more calculating parameter analogies of row, to evaluate effect after shale gas reservoir pressure.
A kind of shale gas reservoir reconstruction volume computing system is proposed according to the present invention, be may include: collector unit, is used for Microseism data set is collected, and then establishes the sample data set comprising multiple sample well sections;Linear transform unit, for being directed to mesh The calculating parameter of well section and the calculating parameter of multiple sample well sections are marked, is standardized by linear transformation, standard is obtained Target well section calculating parameter value and multiple groups master sample well section calculating parameter value;Similarity unit, for calculating target well section Between each standard target well section calculating parameter value and master sample well section calculating parameter value corresponding in a sample well section Similarity be denoted as preferred sample well section preferably with the highest sample well section of target well section similarity;Analogy unit is used for root According to target well section calculating parameter and preferred sample well section calculating parameter, calculate each calculating parameter analogy minimum value, Analogy maximum value, and then the final evaluation of estimate of analogy minimum value and the final evaluation of estimate of analogy maximum value are calculated, obtain analogy area Between;Computing unit, for calculating the transformation volume of target well section according to the transformation volume of preferred sample well section and analogy section.
In one example, calculating parameter includes: target layer depth, reservoir thickness, Young's modulus, Poisson's ratio, drilling well mud Pulp density, well logging permeability, horizontally stress difference coefficient, vertical stress, long English matter content, carbonate rock content, crack refer to Number, pressure break number of segment, perforation number of clusters, horizontal section length, fracture pressure, termination of pumping pressure, smooth water consumption, linear glue dosage.
In one example, it is standardized by formula (1), obtains standard target well section calculating parameter value and more Group master sample well section calculating parameter value:
Wherein, X' is standard target well section calculating parameter value or master sample well section calculating parameter value, and minA and maxA divide Not Wei the calculating parameter minimum value and maximum value, X be the calculating parameter original value.
In one example, each standard target well section calculating parameter value and a sample well section of target well section are calculated In similarity between corresponding master sample well section calculating parameter value include: that sample well section YB and mesh are established according to calculating parameter Mark the similar finite element set of well section MB;According to similar finite element set, the similar finite element feature in sample well section YB and target well section MB is calculated Value;According to similar finite element characteristic value, feature similarity degree, as each standard target well section calculating parameter of target well section are calculated It is worth and the similarity between master sample well section calculating parameter value corresponding in the sample well section.
In one example, the similar finite element set of sample well section YB and target well section MB are as follows:
U=[ui] (2)
Wherein, U is similar finite element set, uiFor similar finite element, ui={ YBi,MBi, i expression calculating parameter serial number, i=1, 2 ..., 18.
In one example, i-th of similar finite element characteristic value in sample well section YB and target well section MB are as follows:
Wherein, RiFor i-th of similar finite element characteristic value.
In one example, the feature similarity degree of sample well section YB and target well section MB are as follows:
Wherein, Q is characterized similarity degree, and n is sample well section serial number.
In one example, analogy minimum value are as follows:
Analogy minimum value=min (target well section calculating parameter, preferably template well section calculating parameter)/max (target well section meter Calculate parameter, preferably template well section calculating parameter) (5);
Analogy maximum value are as follows:
Analogy minimum value=max (target well section calculating parameter, preferably template well section calculating parameter)/min (target well section meter Calculate parameter, preferably template well section calculating parameter) (6).
This system, which passes through, compiles the well section for having been carried out micro-seismic monitoring as sample well section, explains obtaining monitoring As a result while, the engineering geology calculating parameter and pressing crack construction calculating parameter of sample well section are compiled, calculate is carried out more and joins Several classes of ratios, to evaluate effect after shale gas reservoir pressure.
It will be understood by those skilled in the art that above to the purpose of the description of the embodiment of the present invention only for illustratively saying The beneficial effect of bright the embodiment of the present invention is not intended to limit embodiments of the invention to given any example.
Various embodiments of the present invention are described above, above description is exemplary, and non-exclusive, and It is not limited to disclosed each embodiment.Without departing from the scope and spirit of illustrated each embodiment, for this skill Many modifications and changes are obvious for the those of ordinary skill in art field.

Claims (10)

1. a kind of shale gas reservoir reconstruction volume calculation method, comprising:
Microseism data set is collected, and then establishes the sample data set comprising multiple sample well sections;
The calculating parameter of calculating parameter and the multiple sample well section for target well section, is standardized by linear transformation Processing obtains standard target well section calculating parameter value and multiple groups master sample well section calculating parameter value;
Calculate each standard target well section calculating parameter value of the target well section and corresponding standard in a sample well section Similarity between sample well section calculating parameter value is denoted as excellent preferably with the highest sample well section of the target well section similarity This well section of sampling;
According to the calculating parameter of the calculating parameter of the target well section and the preferred sample well section, each calculating parameter is calculated Analogy minimum value, analogy maximum value, and then calculate analogy minimum value final evaluation of estimate and analogy maximum value final evaluation Value obtains analogy section;
According to the transformation volume of the preferred sample well section and the analogy section, the transformation volume of the target well section is calculated.
2. shale gas reservoir reconstruction volume calculation method according to claim 1, wherein the calculating parameter includes: mesh Mark layer depth, reservoir thickness, Young's modulus, Poisson's ratio, wellbore mud density, well logging permeability, horizontally stress difference coefficient, Vertical stress, long English matter content, carbonate rock content, fracture index, pressure break number of segment, perforation number of clusters, horizontal section length, rupture Pressure, termination of pumping pressure, smooth water consumption, linear glue dosage.
3. shale gas reservoir reconstruction volume calculation method according to claim 2, wherein carry out standard by formula (1) Change processing, obtains standard target well section calculating parameter value and multiple groups master sample well section calculating parameter value:
Wherein, X' is standard target well section calculating parameter value or master sample well section calculating parameter value, and minA and maxA are respectively The minimum value and maximum value of the calculating parameter, X are the original value of the calculating parameter.
4. shale gas reservoir reconstruction volume calculation method according to claim 3, wherein calculate the every of the target well section Between one standard target well section calculating parameter value and master sample well section calculating parameter value corresponding in a sample well section Similarity includes:
The similar finite element set of sample well section YB and target well section MB are established according to the calculating parameter;
According to the similar finite element set, the similar finite element characteristic value in sample well section YB and target well section MB is calculated;
According to the similar finite element characteristic value, feature similarity degree, each standard target well of the as described target well section are calculated Similarity between section calculating parameter value and master sample well section calculating parameter value corresponding in the sample well section.
5. shale gas reservoir reconstruction volume calculation method according to claim 4, wherein the sample well section YB and target The similar finite element set of well section MB are as follows:
U=[ui] (2)
Wherein, U is similar finite element set, uiFor similar finite element, ui={ YBi,MBi, i expression calculating parameter serial number, i=1,2 ..., 18.
6. shale gas reservoir reconstruction volume calculation method according to claim 5, wherein sample well section YB and target well section I-th of similar finite element characteristic value in MB are as follows:
Wherein, RiFor i-th of similar finite element characteristic value.
7. shale gas reservoir reconstruction volume calculation method according to claim 6, wherein sample well section YB and target well section The feature similarity degree of MB are as follows:
Wherein, Q is characterized similarity degree, and n is sample well section serial number.
8. shale gas reservoir reconstruction volume calculation method according to claim 1, wherein the analogy minimum value are as follows:
(target well section calculates ginseng to analogy minimum value=min (target well section calculating parameter, preferably template well section calculating parameter)/max Number, preferably template well section calculating parameter) (5);
The analogy maximum value are as follows:
(target well section calculates ginseng to analogy minimum value=max (target well section calculating parameter, preferably template well section calculating parameter)/min Number, preferably template well section calculating parameter) (6).
9. a kind of shale gas reservoir reconstruction volume computing system, comprising:
Collector unit for collecting microseism data set, and then establishes the sample data set comprising multiple sample well sections;
Linear transform unit passes through for the calculating parameter of calculating parameter and the multiple sample well section for target well section Linear transformation is standardized, and obtains standard target well section calculating parameter value and multiple groups master sample well section calculating parameter Value;
Similarity unit, for calculating each standard target well section calculating parameter value and a sample well of the target well section Similarity in section between corresponding master sample well section calculating parameter value, preferably with the highest sample of target well section similarity This well section is denoted as preferred sample well section;
Analogy unit, for calculating according to the calculating parameter of the target well section and the calculating parameter of the preferred sample well section Analogy minimum value, the analogy maximum value of each calculating parameter, and then the final evaluation of estimate for calculating analogy minimum value and analogy are most The final evaluation of estimate being worth greatly obtains analogy section;
Computing unit, for calculating the target well according to the transformation volume of the preferred sample well section and the analogy section The transformation volume of section.
10. shale gas reservoir reconstruction volume computing system according to claim 9, wherein the calculating parameter includes: mesh Mark layer depth, reservoir thickness, Young's modulus, Poisson's ratio, wellbore mud density, well logging permeability, horizontally stress difference coefficient, Vertical stress, long English matter content, carbonate rock content, fracture index, pressure break number of segment, perforation number of clusters, horizontal section length, rupture Pressure, termination of pumping pressure, smooth water consumption, linear glue dosage.
CN201810273203.6A 2018-03-29 2018-03-29 Shale gas reservoir reconstruction volume calculation method and system Pending CN110322363A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111119830A (en) * 2020-01-02 2020-05-08 山东科技大学 Hot dry rock thermal reservoir transformation method for preventing induced earthquake
CN111859260A (en) * 2020-07-03 2020-10-30 中国科学技术大学 Method for obtaining SRV area by using fracturing construction data
CN113803043A (en) * 2020-06-17 2021-12-17 中国石油化工股份有限公司 Fracturing modification volume prediction method and device for shale gas reservoir

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104239703A (en) * 2014-09-03 2014-12-24 中石化江汉石油工程有限公司测录井公司 Quantitative analogical evaluation method for multiple parameters of shale gas reservoir
KR101647921B1 (en) * 2015-03-27 2016-08-12 서울대학교산학협력단 Method for selecting model similar to real gas production and method for predicting gas production from oil and gas reservoir
CN106844909A (en) * 2017-01-05 2017-06-13 西南石油大学 A kind of computational methods of compact reservoir fracturing reform volume area
CN107133879A (en) * 2016-02-26 2017-09-05 中国石油化工股份有限公司 A kind of method for screening similar oil field
CN107481158A (en) * 2016-06-08 2017-12-15 中国石油化工股份有限公司 A kind of method for calculating shale gas effective reservoir transformation volume
CN107590743A (en) * 2017-08-31 2018-01-16 中国石油天然气股份有限公司 Method and device for determining abundance of petroleum resources

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104239703A (en) * 2014-09-03 2014-12-24 中石化江汉石油工程有限公司测录井公司 Quantitative analogical evaluation method for multiple parameters of shale gas reservoir
KR101647921B1 (en) * 2015-03-27 2016-08-12 서울대학교산학협력단 Method for selecting model similar to real gas production and method for predicting gas production from oil and gas reservoir
CN107133879A (en) * 2016-02-26 2017-09-05 中国石油化工股份有限公司 A kind of method for screening similar oil field
CN107481158A (en) * 2016-06-08 2017-12-15 中国石油化工股份有限公司 A kind of method for calculating shale gas effective reservoir transformation volume
CN106844909A (en) * 2017-01-05 2017-06-13 西南石油大学 A kind of computational methods of compact reservoir fracturing reform volume area
CN107590743A (en) * 2017-08-31 2018-01-16 中国石油天然气股份有限公司 Method and device for determining abundance of petroleum resources

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
XULI LIU ET AL.: ""Shale-gas well test analysis and evaluation after hydraulic fracturing by stimulated reservoir volume (SRV)"", 《NATURAL GAS INDUSTRY B》 *
吴伟东: "《零能耗居住建筑多目标优化设计方法研究》", 28 February 2018, 东南大学出版社 *
苏玉亮 等: ""页岩气藏体积压裂有效改造体积计算方法"", 《地球科学》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111119830A (en) * 2020-01-02 2020-05-08 山东科技大学 Hot dry rock thermal reservoir transformation method for preventing induced earthquake
CN113803043A (en) * 2020-06-17 2021-12-17 中国石油化工股份有限公司 Fracturing modification volume prediction method and device for shale gas reservoir
CN113803043B (en) * 2020-06-17 2023-07-07 中国石油化工股份有限公司 Fracturing transformation volume prediction method and device for shale gas reservoir
CN111859260A (en) * 2020-07-03 2020-10-30 中国科学技术大学 Method for obtaining SRV area by using fracturing construction data

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