CN105372702B - Turn round the quantitative description method of a geologic structure - Google Patents
Turn round the quantitative description method of a geologic structure Download PDFInfo
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- CN105372702B CN105372702B CN201410391399.0A CN201410391399A CN105372702B CN 105372702 B CN105372702 B CN 105372702B CN 201410391399 A CN201410391399 A CN 201410391399A CN 105372702 B CN105372702 B CN 105372702B
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Abstract
The present invention provides a kind of quantitative description method for turning round a geologic structure, and the quantitative description method of the torsion geologic structure includes:Step 1, according to Fault geometry signature analysis, combined structure stress field and fault development simulation determine that a tectonic style is turned round in basin;Step 2, set up basin and break to form mechanism and static models;Step 3, dynamic quantization analysis is carried out, development characteristics and its evolutionary process that tension fault construction is turned round in basin are obtained, the vertical displacement and horizontal displacement of each critical period torsion tension fault is quantitatively calculated, and reaches quantitative criteria;Step 4, the dynamic geological model that tensile crack is turned round in basin, the clearly control action to basin fill reservoir and Hydrocarbon Migration And Accumulation are set up.The quantitative description method of the torsion geologic structure clearly turns round a construction to deposition, reservoir, the control action into Tibetan, and solution transtensional basin drilling success is low, and the oil-gas exploration for instructing similar basin is had far-reaching significance.
Description
Technical field
The present invention relates to In Oil Field Exploration And Development technical field, especially relate to a kind of quantification for turning round a geologic structure and retouch
State method.
Background technology
The dynamic and static quantitative analysis of a geologic structure is turned round, based on transtensional basin, segmentation property is strong, and sedimentation is complicated, many
Material resource, many sedimentary systems interlock;Oil-rich subsag understanding is unclear, particularly the similar transtensional basin of Jiyang depression such as Huimin sag etc.,
Exploration is relative to be in reduced levels, and transtensional basin drilling success is low.On the other hand pole at home and abroad is studied in the transtensional basin
To be limited.Be this we have invented a kind of quantitative description method of new torsion geologic structure, solve above technical problem.
The content of the invention
It is an object of the invention to provide a kind of development characteristics and its evolutionary process of clear and definite basin major faults, the amount of reaching
Change standard, sets up the quantitative description method of the torsion geologic structure for the dynamic and static tectonic model for turning round a type basin.
The purpose of the present invention can be achieved by the following technical measures:The quantitative description method of a geologic structure is turned round, should
Turning round the quantitative description method of a geologic structure includes:Step 1, according to Fault geometry signature analysis, combined structure stress field
And fault development simulation, determine that a tectonic style is turned round in basin;Step 2, according to the analysis in step 1, break at 1~4 grade to basin
On the basis of tectonic style and the assemblage characteristic analysis of layer, set up basin and break to form mechanism and static models;Step 3, it is right
Turn round a kinematics character for construction and carry out dynamic quantization analysis, obtain basin and turn round the development characteristics of tension fault construction and its developed
Journey, quantitatively calculates the vertical displacement and horizontal displacement of each critical period torsion tension fault, and reaches quantitative criteria;And step 4,
According to being calculated in step 3 the vertically and horizontally displacement quantitativeization of each critical period, the dynamic geological that tensile crack is turned round in basin is set up
Model, the clearly control action to basin fill reservoir and Hydrocarbon Migration And Accumulation.
The purpose of the present invention can be also achieved by the following technical measures:
In step 1, the Fault geometry signature analysis of progress includes:Each reflecting layer fault strike statistics and rose
Establishment, fracture classification, tomography tendency, fracture direction statistics, plane-profile construction Pattern analysis, fracture complexity statistics, substrate
Fracture analysis and into figure.
In step 3, for the tomography involved by the static models of basin, structural belt, emphasis quantitatively develops to basin, constructed
Band quantitatively develops and tomography quantitatively develops, and this several method carries out dynamic quantization analysis.
In step 3, when carrying out dynamic quantization analysis, the ancient drop of tomography is corresponded to according to each layer, section, Sand member, broken
The complementary angle of layer trend, the fault strike that section apparent dip and digital simulation are obtained and tension orientation angle:Complete each layer, section,
Sand member horizontal displacement, span.
In step 3, analyzed, fault activity is analyzed, carried out to turning round a kinematics character for construction by balanced cross section
Dynamic analysis, and carry out the numerical simulation in depression in terms of mature fault and Evolution.
In step 3, the numerical simulation of development is included on section mature fault with mature fault in evolution, plane with drilling
Change and three aspects of tomography stress field carry out numerical simulation analysis.
The quantitative description method of torsion geologic structure in the present invention, emphasis changes over time pass to counterincision activity rate
System, ancient drop, the balanced cross section analysis work progress labor research work across depression heavy gauge, and carry out tomography in depression
Numerical simulation in terms of development and Evolution, be mainly included in mature fault and evolution on section, in plane mature fault with
Develop and three aspects of tomography stress field have carried out numerical simulation analysis, be finally completed and turn round the dynamic and static quantitative of a geologic structure
Change analysis, set up dynamic, quantitative model, clearly turn round a construction to deposition, reservoir, the control action into Tibetan.The present invention is by right
The analysis in terms of a flat cutting faces tectonic style for construction, fracture temporal-spatial evolution characteristics is turned round, the development of transtensional basin can be specified
Evolution, sets up the dynamic and static tectonic model in the torsion type basin, has to the oil-gas exploration for instructing similar basin far-reaching
Meaning.By analyzing the data such as related geology, geophysics, in the profile features of the torsion construction of clear and definite transtensional basin substantially
On the basis of plane characteristic, variation characteristic of the analysis tectonic style on room and time, the evolution for summarizing torsion construction is special
Levy, and analyze the kinetic mechanism turned round and open construction formation.The final kinematics character constructed according to being opened to torsion carries out momentum and determined
Amount analysis, specify that the development characteristics and its evolutionary process of basin major faults, reach quantitative criteria, clearly to deposition, reservoir,
Into the control action of Tibetan.This method solution transtensional basin drilling success is low, has to the oil-gas exploration for instructing similar basin deep
Remote meaning.
Brief description of the drawings
Fig. 1 opens the flow chart of a specific embodiment of the quantitative description method of geologic structure for the torsion of the present invention;
Fig. 2 is to turn round a quantitative calculating schematic diagram for construction;
Fig. 3-1, Fig. 3-2 is that being turned round for Organic geochemistry for the present invention opens a structure dynamics Three-dimensional Evolution model.
Embodiment
For enable the present invention above and other objects, features and advantages become apparent, it is cited below particularly go out preferred embodiments,
And coordinate institute's accompanying drawings, it is described in detail below.
As shown in figure 1, flow charts of the Fig. 1 for the quantitative description method of the torsion geologic structure of the present invention.
In step 101, according to Fault geometry signature analysis, combined structure stress field and fault development simulation determine basin
Turn round a tectonic style in ground.In one embodiment, static research work fracture analysis is carried out for Huimin sag construction:Each reflecting layer
Fault strike is counted to be worked out with rose.Fracture classification, tomography tendency, fracture direction statistics, plane-profile construction pattern point
Analysis, fracture complexity statistics, foundational fault analysis and into figure.Flow enters step 102.
In step 102, by comprehensive analysis, in the base of tectonic style and the assemblage characteristic analysis to 1~4 grade of basin tomography
On plinth, set up basin and break to form mechanism and static models.Specify transtensional basin and break to form mechanism, and set up static state
Model.Flow enters step 103.
In step 103, by balanced cross section, fault activity analysis and tectonic stress field stimulation, to turning round a fortune of construction
Dynamic feature of learning carries out dynamic quantization analysis, development characteristics and its evolutionary process that tension fault construction is turned round in basin is obtained, such as Fig. 2 institutes
Show, quantitatively calculate the vertical displacement and horizontal displacement of each critical period torsion tension fault, and reach quantitative criteria.It is quiet for basin
Tomography, structural belt involved by states model, are mainly quantitatively developed, structural belt quantitatively develops and during tomography quantitatively develops by basin
Several method carry out shown in Fig. 2 dynamic quantization analysis, according to each layer, section, Sand member correspondence tomography ancient drop, tomography walk
To, the fault strike that section apparent dip and digital simulation are obtained and the complementary angle of tension orientation angle:Complete each layer, section, layer of sand
Group horizontal displacement, span etc..Analyzed, fault activity is analyzed, entered to turning round a kinematics character for construction by balanced cross section
Mobile state quantitative analysis, and carry out the numerical simulation in depression in terms of mature fault and Evolution, it is mainly included on section
Mature fault has carried out numerical simulation analysis with mature fault and evolution and three aspects of tomography stress field in evolution, plane, bright
Really the development characteristics and its evolutionary process of basin major faults, reach quantification standard.Flow enters step 104.
In step 104, the vertically and horizontally displacement quantitative that a construction fracture carries out each critical period is turned round 1~4 grade to basin
Change and calculate, set up the dynamic geological model that tensile crack is turned round in basin, the clearly control to basin fill reservoir and Hydrocarbon Migration And Accumulation
Effect.Particularly, according to step 103 to transtensional basin Quantitative study, detailed comprehensive analysis each side research work, finally
Complete to turn round the dynamic and static quantitative analysis for opening geologic structure, set up dynamic as shown in Figure 3, quantitative model, clearly turn round a construction
To deposition, reservoir, the control action into Tibetan.Flow terminates.
In a word, the dynamic and static Quantitative Analysis Method of the torsion geologic structure in the present invention is primarily directed to transtensional basin
The analysis in terms of a flat cutting faces tectonic style for construction, fracture temporal-spatial evolution characteristics is turned round, the evolved stages of transtensional basin are specified
Rule, it is final to carry out momentum quantitative analysis according to turning round a kinematics character for construction, it specify that the hair of basin major faults
Feature and its evolutionary process are educated, quantitative criteria is reached, the dynamic and static tectonic model for turning round a type basin is set up, clearly to deposition, storage
Layer, into the control action of Tibetan.The unique novelty of the research achievement, can fill up research blank both at home and abroad.
Claims (3)
1. turn round the quantitative description method of a geologic structure, it is characterised in that the quantitative description method of the torsion geologic structure
Including:
Step 1, according to Fault geometry signature analysis, combined structure stress field and fault development simulation determine that a structure is turned round in basin
Make pattern;
Step 2, according to the analysis in step 1, on the basis of tectonic style and the assemblage characteristic analysis to 1~4 grade of basin tomography
On, set up basin and break to form mechanism and static models;
Step 3, dynamic quantization analysis is carried out to turning round a kinematics character for construction, the development that tension fault construction is turned round in acquisition basin is special
Levy and its evolutionary process, quantitatively calculate the vertical displacement and horizontal displacement of each critical period torsion tension fault, and reach quantization mark
It is accurate;And
Step 4, according to being calculated in step 3 the vertically and horizontally displacement quantitativeization of each critical period, set up basin and turn round tensile crack
Dynamic geological model, the clear and definite control action to basin fill reservoir and Hydrocarbon Migration And Accumulation;
In step 3, for the tomography involved by the static models of basin, structural belt, emphasis quantitatively develops to basin, structural belt is fixed
Amount develops and tomography quantitatively develops, and this several method carries out dynamic quantization analysis;Carry out dynamic quantization analysis when, according to each layer,
Fault strike and tension that section, ancient drop, fault strike, section apparent dip and the digital simulation of Sand member correspondence tomography are obtained
The complementary angle of orientation angle:Complete each layer, section, Sand member horizontal displacement, span;Analyzed by balanced cross section, fault activity
Analysis, carries out dynamic analysis, and carry out mature fault and Evolution side in depression to turning round a kinematics character for construction
The numerical simulation in face.
2. the quantitative description method according to claim 1 for turning round a geologic structure, it is characterised in that in step 1, enter
Capable Fault geometry signature analysis includes:Each reflecting layer fault strike statistics is inclined with rose establishment, fracture classification, tomography
To, fracture direction statistics, plane-profile construction Pattern analysis, fracture complexity statistics, foundational fault analysis and into figure.
3. the quantitative description method according to claim 1 for turning round a geologic structure, it is characterised in that in step 3, open
The numerical simulation of exhibition is included in mature fault and mature fault and evolution and three sides of tomography stress field in evolution, plane on section
Face carries out numerical simulation analysis.
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CN107589236A (en) * | 2017-09-14 | 2018-01-16 | 中国地质调查局油气资源调查中心 | A kind of multifactor selection and appraisal of exploration area method of shale gas based on fuzzy matrix |
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CN106199709B (en) * | 2016-06-29 | 2018-02-13 | 中国石油化工股份有限公司 | Turn round the evaluation method of tensile crack activity |
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