CN106599338A - Three-dimensional geologic modeling method for shale gas reservoirs - Google Patents
Three-dimensional geologic modeling method for shale gas reservoirs Download PDFInfo
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Abstract
The invention discloses a three-dimensional geologic modeling method for shale gas reservoirs. The method comprises following steps: obtaining all parameters of each exploratory well, establishing a physical model of a single well model and obtaining hard spot files; forming a correctable hard spot table; establishing a structure model of a hard-spot single well model; carrying out parameterized treatment on the hard-spot single well model; establishing a point and line model for configuration of the single well model for all parts of the single well model; establishing a point and line DMU model for the single well model, decorating all obtained parameters of each exploratory well to corresponding point and line parts of the point and line DMU model for the single well model and obtaining a parameterized DMU model of the single well model; and integrating DMU models of single well models for N exploratory wells and obtaining the three-dimensional geologic parameterized DMU model for shale gas reservoirs. The three-dimensional geologic modeling method for shale gas reservoirs has following beneficial effects: a complete and accurate three-dimensional geologic model for shale gas reservoirs is obtained so that the purpose of conveniently researching fundamental geology information for stratums in details is fulfilled.
Description
Technical field
The present invention relates to geological exploration and development field, and in particular to a kind of shale gas reservoir three-dimensional geological modeling method.
Background technology
Shale oil gas is originated as energy extraction newborn in recent years, from the source bed for thinking in the past to preserve oil gas
The exploitation of petroleum resources is carried out, in the world with extensive prospect.And with conventional sandstone reservoir in pore channel not
Together, used in rammell, crack carries out oil-gas migration, crack both can provide aggregation space for shale gas, alternatively shale gas
Production provides migration pathway., used as a kind of low porosity and low permeability reservoir, the production mechanism of its oil gas is extremely complex for mud shale, is related to absorption
Mutual relation between Gas content and free Gas content, natural microcrack and pressure break attractive joint etc..And it is natural micro- in mud shale
Crack is divided into build joint, interlayer laminated structure of shale seam again, aspect sliding seam, diagenesis shrink microcrack and organic matter evolution abnormal pressure stitches 5
Kind, its complicated classification, identification feature and governing factor are different.In a word, open shale gas reservoir to boring Well Completion Engineering of Oil Reservoirs is not only
One big technological innovation, equally proposes lot of challenges simultaneously for geological prospecting department.Current shale gas reservoir three-dimensional geological modeling
Method generally existing be related to the single defect in face, while the process of modeling, selectes suspension frame structure shape mostly first as requested
Formula, determines the performance parameter of regularity and stability.Then model is set up using software, by constantly adjustment hard spot
(Hardpoint) parameters, are made to reach detected numerical value.Wherein, it is the General Layout Design mistake in model to design hard spot
Cheng Zhong, be ensure coordination between part and assembly relation and control point determined by shaping style requirement or coordinate, control line,
The general name of chain of command and control structure.Then concrete modular construction design is carried out according to hard spot, the part gone out designed by engineer
Need to check by DMU, cannot such as pass through, then need to adjust hard spot design part structure again, so circulate, up to each parameter
Detected numerical value is reached, said process needs to redesign modular construction after adjustment hard spot, belongs to repetitive operation, significantly
Extend modeling the spent time.
The content of the invention
To solve the above problems, the invention provides a kind of shale gas reservoir three-dimensional geological modeling method, realizes comprehensively, accurately
Set up shale gas reservoir three-dimensional geological model, reach the purpose for being easy to be probed in detail to stratum basic geological information, while
Workload required when change is designed during design structure can be reduced, using parameterized model structure, can be with
The displaying of shale gas reservoir situation is carried out more intuitively.
For achieving the above object, the technical scheme taken of the present invention is：
Shale gas reservoir three-dimensional geological modeling method, comprises the steps：
S1, in a certain shale gas exploration and development block, according to geological conditions and goal in research demand, choose with characterizing
The N mouth prospect pits of meaning, carry out resistivity logging, acoustic logging, nutural potential logging, natural gamma to the full well section of every mouthful of prospect pit
Well logging, compensated neutron log, density log, calliper log, obtain the above-mentioned log of the full well section of target well, make well logging solution
Release；
S2, the full well section to every mouthful of prospect pit carry out imaging logging, make well log interpretation；
S3, the shaft bottom that focus is arranged at every mouthful of prospect pit, carry out VSP well loggings respectively, make well log interpretation；
S4, all reservoirs to every mouthful of prospect pit carry out sidewall coring, and all rock cores to taking out carry out electron-microscope scanning sight
Examine, porosity determination, rock strain are tested, and obtain experiment parameter；
S5, according to individual well model structural form and regularity and stability parameter request, set up the physics of individual well model
Model, obtains hard spot file, at least includes the positional information of each hard spot of the individual well model in hard spot file；
S6, the coordinate values for reading each hard spot in hard spot file, form a revisable hard spot table；
S7, according to hard spot table, set up a hard spot individual well model construction model, individual well model construction model includes individual well mould
All hard spot coordinates of type；
S8, parameterized treatment is carried out to the hard spot individual well model construction model, make the hard spot individual well model construction mould
Type is set up with hard spot table and is associated, and each hard spot for having been associated in issuing hard spot individual well model construction model；
S9, according to hard spot individual well model construction model, set up the individual well model construction Point and Line Model of each part of individual well model,
The individual well model construction Point and Line Model of each part includes appropriate section hard spot in the hard spot of the issue, and keeps corresponding and close
Connection relation；
S10, individual well model dotted line DMU models are set up, and by the well log interpretation and step obtained by S1-S3 the step of each part
The experiment parameter of rapid S4 decorates the parametrization that individual well model is obtained on the corresponding dotted line part of individual well model dotted line DMU models
DMU models；
The parametrization DMU model of S11, the individual well model of integration N mouth prospect pits, obtains shale gas reservoir three-dimensional geological parametrization
DMU models.
Preferably, the hard spot table includes each hard spot fix name, and the corresponding coordinate values of each hard spot and
In distance value between two neighboring coordinate.
Preferably, the hard spot table is set up by following steps：
The coordinate values that each hard spot in the hard spot file is read using Matlab are imported in an EXCEL file, described
Storage in first list of EXCEL file has the distance between each hard spot title, coordinate values and two neighboring coordinate；
Hard spot fix name is placed in the first row of the second list of the EXCEL file, secondary series is linked in the first list corresponding
Coordinate values, the 3rd row are connected to the distance between corresponding two coordinates in the first list, and the EXCEL file is
The revisable hard spot table.
Preferably, step S8 is concretely comprised the following steps：
Using the parameter input function of CATIA softwares by the fix name and its numerical value in the hard spot table with length parameter
Form import in the hard spot individual well model construction model；
The form that the hard spot table designs table is imported to the hard spot individual well using the design table instrument of CATIA softwares
Model construction model, indicates importing hard spot table the second list of EXCEL file during importing；
Using the formula editors instrument of CATIA softwares the coordinate values of each hard spot in hard spot individual well model construction model
Change corresponding design parameter into；
The each hard spot in the hard spot individual well model construction model is issued using the publishing tool of CATIA softwares.
The invention has the advantages that：
Shale gas reservoir three-dimensional geological model is comprehensively and accurately set up in realization, reaches and is easy to enter stratum basic geological information
The purpose that row is probed in detail, while workload required when change is designed during design structure can be reduced, adopts
Parameterized model structure, can more intuitively carry out the displaying of shale gas reservoir situation.
Specific embodiment
In order that objects and advantages of the present invention become more apparent, with reference to embodiments the present invention is carried out further
Describe in detail.It should be appreciated that specific embodiment described herein is not used to limit this only to explain the present invention
It is bright.
A kind of shale gas reservoir three-dimensional geological modeling method is embodiments provided, is comprised the steps：
S1, in a certain shale gas exploration and development block, according to geological conditions and goal in research demand, choose with characterizing
The N mouth prospect pits of meaning, carry out resistivity logging, acoustic logging, nutural potential logging, natural gamma to the full well section of every mouthful of prospect pit
Well logging, compensated neutron log, density log, calliper log, obtain the above-mentioned log of the full well section of target well, make well logging solution
Release；
S2, the full well section to every mouthful of prospect pit carry out imaging logging, make well log interpretation；
S3, the shaft bottom that focus is arranged at every mouthful of prospect pit, carry out VSP well loggings respectively, make well log interpretation；
S4, all reservoirs to every mouthful of prospect pit carry out sidewall coring, and all rock cores to taking out carry out electron-microscope scanning sight
Examine, porosity determination, rock strain are tested, and obtain experiment parameter；
S5, according to individual well model structural form and regularity and stability parameter request, set up the physics of individual well model
Model, obtains hard spot file, at least includes the positional information of each hard spot of the individual well model in hard spot file；
S6, the coordinate values for reading each hard spot in hard spot file, form a revisable hard spot table；
S7, according to hard spot table, set up a hard spot individual well model construction model, individual well model construction model includes individual well mould
All hard spot coordinates of type；
S8, parameterized treatment is carried out to the hard spot individual well model construction model, make the hard spot individual well model construction mould
Type is set up with hard spot table and is associated, and each hard spot for having been associated in issuing hard spot individual well model construction model；
S9, according to hard spot individual well model construction model, set up the individual well model construction Point and Line Model of each part of individual well model,
The individual well model construction Point and Line Model of each part includes appropriate section hard spot in the hard spot of the issue, and keeps corresponding and close
Connection relation；
S10, individual well model dotted line DMU models are set up, and by the well log interpretation and step obtained by S1-S3 the step of each part
The experiment parameter of rapid S4 decorates the parametrization that individual well model is obtained on the corresponding dotted line part of individual well model dotted line DMU models
DMU models；
The parametrization DMU model of S11, the individual well model of integration N mouth prospect pits, obtains shale gas reservoir three-dimensional geological parametrization
DMU models.
The hard spot table includes each hard spot fix name, and the corresponding coordinate values of each hard spot and adjacent two
In distance value between individual coordinate.
The hard spot table is set up by following steps：
The coordinate values that each hard spot in the hard spot file is read using Matlab are imported in an EXCEL file, described
Storage in first list of EXCEL file has the distance between each hard spot title, coordinate values and two neighboring coordinate；
Hard spot fix name is placed in the first row of the second list of the EXCEL file, secondary series is linked in the first list corresponding
Coordinate values, the 3rd row are connected to the distance between corresponding two coordinates in the first list, and the EXCEL file is
The revisable hard spot table.
Preferably, step S8 is concretely comprised the following steps：
Using the parameter input function of CATIA softwares by the fix name and its numerical value in the hard spot table with length parameter
Form import in the hard spot individual well model construction model；
The form that the hard spot table designs table is imported to the hard spot individual well using the design table instrument of CATIA softwares
Model construction model, indicates importing hard spot table the second list of EXCEL file during importing；
Using the formula editors instrument of CATIA softwares the coordinate values of each hard spot in hard spot individual well model construction model
Change corresponding design parameter into；
The each hard spot in the hard spot individual well model construction model is issued using the publishing tool of CATIA softwares.
The above is only the preferred embodiment of the present invention, it is noted that for those skilled in the art come
Say, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (4)
1. shale gas reservoir three-dimensional geological modeling method, it is characterised in that comprise the steps：
S1, in a certain shale gas exploration and development block, according to geological conditions and goal in research demand, choose with symbolical meaningses
N mouth prospect pits, resistivity logging, acoustic logging, nutural potential logging, natural gamma are carried out to the full well section of every mouthful of prospect pit and are surveyed
Well, compensated neutron log, density log, calliper log, obtain the above-mentioned log of the full well section of target well, make well logging solution
Release；
S2, the full well section to every mouthful of prospect pit carry out imaging logging, make well log interpretation；
S3, the shaft bottom that focus is arranged at every mouthful of prospect pit, carry out VSP well loggings respectively, make well log interpretation；
S4, all reservoirs to every mouthful of prospect pit carry out sidewall coring, and all rock cores to taking out carry out electron-microscope scanning observation, hole
Porosity is determined, rock strain experiment, obtains experiment parameter；
S5, according to individual well model structural form and regularity and stability parameter request, set up the physical model of individual well model,
Hard spot file is obtained, in hard spot file, at least includes the positional information of each hard spot of the individual well model；
S6, the coordinate values for reading each hard spot in hard spot file, form a revisable hard spot table；
S7, according to hard spot table, set up a hard spot individual well model construction model, individual well model construction model includes individual well model
All hard spot coordinates；
S8, parameterized treatment is carried out to the hard spot individual well model construction model, make the hard spot individual well model construction model with
Hard spot table sets up association, and each hard spot for having been associated in issuing hard spot individual well model construction model；
S9, according to hard spot individual well model construction model, set up the individual well model construction Point and Line Model of each part of individual well model, each
The individual well model construction Point and Line Model of part includes appropriate section hard spot in the hard spot of the issue, and keeps corresponding association to close
System；
S10, individual well model dotted line DMU models are set up, and by the well log interpretation and step S4 obtained by S1-S3 the step of each part
Experiment parameter decorate on the corresponding dotted line part of individual well model dotted line DMU models, obtain individual well model parametrization DMU mould
Type；
The parametrization DMU model of S11, the individual well model of integration N mouth prospect pits, obtains shale gas reservoir three-dimensional geological parametrization DMU mould
Type.
2. shale gas reservoir three-dimensional geological modeling method according to claim 1, it is characterised in that the hard spot table includes
In distance value between each hard spot fix name, and the corresponding coordinate values of each hard spot and two neighboring coordinate.
3. shale gas reservoir three-dimensional geological modeling method according to claim 1, it is characterised in that the hard spot table by with
Lower step is set up：
The coordinate values that each hard spot in the hard spot file is read using Matlab are imported in an EXCEL file, in the EXCEL
Storage in first list of file has the distance between each hard spot title, coordinate values and two neighboring coordinate；Institute
The first row for stating the second list of EXCEL file places hard spot fix name, and secondary series is sat in being linked to the first list accordingly
Mark numerical value, the 3rd row are connected to the distance between corresponding two coordinates in the first list, and the EXCEL file is described
Revisable hard spot table.
4. shale gas reservoir three-dimensional geological modeling method according to claim 1, it is characterised in that step S8 it is concrete
Step is：
Using the parameter input function of CATIA softwares by the fix name and its numerical value in the hard spot table with the shape of length parameter
Formula is imported in the hard spot individual well model construction model；
The form that the hard spot table designs table is imported to the hard spot individual well model using the design table instrument of CATIA softwares
Tectonic model, indicates importing hard spot table the second list of EXCEL file during importing；
The coordinate values of each hard spot in hard spot individual well model construction model are changed into using the formula editors instrument of CATIA softwares
Corresponding design parameter；
The each hard spot in the hard spot individual well model construction model is issued using the publishing tool of CATIA softwares.
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Cited By (5)
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| CN109657290A (en) * | 2018-11-28 | 2019-04-19 | 中国电建集团贵阳勘测设计研究院有限公司 | Core wall dam design method based on CATIA and Excel |
| CN109664510A (en) * | 2018-12-26 | 2019-04-23 | 长江大学 | A kind of oil exploitation stratum reservoir 3D modeling print system |
| CN111852459A (en) * | 2019-04-22 | 2020-10-30 | 中国石油天然气股份有限公司 | Shale gas reservoir structure modeling method and device |
| CN111914380A (en) * | 2019-05-09 | 2020-11-10 | 广州汽车集团股份有限公司 | Part model determination method and device, computer equipment and storage medium |
| CN114218632A (en) * | 2021-12-03 | 2022-03-22 | 中南建筑设计院股份有限公司 | Parameterized sump pit modeling method based on Revit and Dynamo |
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