CN106154326A - The method and device that a kind of vertical buckling fold fracture spacing is evaluated - Google Patents
The method and device that a kind of vertical buckling fold fracture spacing is evaluated Download PDFInfo
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- CN106154326A CN106154326A CN201610682936.6A CN201610682936A CN106154326A CN 106154326 A CN106154326 A CN 106154326A CN 201610682936 A CN201610682936 A CN 201610682936A CN 106154326 A CN106154326 A CN 106154326A
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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. analysis, for interpretation, for correction
- G01V1/30—Analysis
- G01V1/306—Analysis for determining physical properties of the subsurface, e.g. impedance, porosity or attenuation profiles
Abstract
The embodiment of the present application provides the method and device that a kind of vertical buckling fold fracture spacing is evaluated.Wherein method includes: the geological data of the vertical buckling fold in acquisition study area and well-log information；Described vertical buckling fold extensional tape thickness everywhere is calculated according to described well-log information and geological data；Fracture spacing is evaluated according to described extensional tape thickness.The embodiment of the present application can realize vertical buckling fold fracture spacing in the case of seismic data signal to noise ratio is relatively low and evaluate.
Description
Technical field
The application relates to petroleum natural gas exploration field, especially relates to what a kind of vertical buckling fold fracture spacing was evaluated
Method and device.
Background technology
Vertical buckling fold is that rock stratum is caused mechanical imbalance by longitudinal compression effect and the gauffer that formed.Stratum is at Folding Deformation
During show as outer arc elongation and inner arc shortens, form anticline and to tiltedly.The structure formed in vertical buckling fold mechanism splits
Seam be the main thoroughfare of fluid neuron network be also the main reservoir and flow space of this type of reservoir.Fracture spacing in vertical buckling fold is evaluated split
Send out well location to choose and drilling engineering operation is significant.
At present conventional fracture spacing evaluation methodology mainly has two kinds, one be utilize seismic data cube calculate coherent body,
Curvature body and coherent enhancement body etc., extract face attribute along layer the most again and represent fractue spacing, needs to obtain letter during calculating
The seismic data that comparison of making an uproar is high；Another method is to utilize the Ji Zuofen orientation superposition of prestack road, then by different azimuth data
Body is stacked matching, does ellipse fitting according to the change between its per pass, and transverse represents that fractuer direction, short axle represent that crack is close
Degree, the method can not only predict fracture spacing, moreover it is possible to judges that it moves towards, but the requirement to seismic data is higher.In complicated landform
In, owing to subsurface geology situation is complicated, inverse the covering of structure is stacked seriously, causes obtained seismic data signal to noise ratio relatively low, only
Structure imaging can be accomplished, it is difficult to the geological data obtaining high s/n ratio is used for calculating coherent body, curvature body and coherent enhancement body etc.,
Therefore, it is difficult to realize fracture spacing evaluation, but the fracture spacing evaluation in structure is again necessary in developing of reservoirs
Link.
Summary of the invention
The purpose of the embodiment of the present application is the method and device providing a kind of vertical buckling fold fracture spacing to evaluate, Ke Yi
Realize vertical buckling fold fracture spacing in the case of seismic data signal to noise ratio is low to evaluate.
For reaching above-mentioned purpose, the embodiment of the present application provides a kind of method that vertical buckling fold fracture spacing is evaluated, the party
Method includes:
The geological data of the vertical buckling fold in acquisition study area and well-log information；
Described vertical buckling fold extensional tape thickness everywhere is calculated according to described well-log information and geological data；
Fracture spacing is evaluated according to described extensional tape thickness.
The embodiment of the present application additionally provides the device that a kind of vertical buckling fold fracture spacing is evaluated, can be in seismic data noise
Realizing vertical buckling fold fracture spacing evaluation in the case of relatively low, this device includes:
Acquisition module, for obtaining geological data and the well-log information of the vertical buckling fold in study area；
Computing module, for calculating described vertical buckling fold extensional tape thickness everywhere according to described well-log information and geological data
Degree；
Evaluation module, for evaluating fracture spacing according to described extensional tape thickness.
The technical scheme provided from above the embodiment of the present application, when carrying out vertical buckling fold fracture spacing and evaluating, first
First pass through the extensional tape thickness in seismic data acquisition target formation form, realize fracture spacing further according to extensional tape thickness and comment
Valency.In the embodiment of the present application, vertical buckling fold extensional tape thickness belongs to an attribute of structural configuration, the process of constructs for interpretation form
In to seismic data signal to noise ratio not sensitivity, therefore also can realize in the case of seismic data signal to noise ratio is relatively low.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present application, constitutes the embodiment of the present application
A part, is not intended that the restriction to the embodiment of the present application.In the accompanying drawings:
Fig. 1 is the method flow schematic diagram of a kind of vertical buckling fold fracture spacing evaluation of the embodiment of the present application；
Fig. 2 is the extensional tape thickness method flow schematic diagram calculating vertical buckling fold of the embodiment of the present application；
Fig. 3 is the body curvature attributes figure in certain district of the embodiment of the present application；
Fig. 4 is the average curvature attributed graph in certain district of the embodiment of the present application
Fig. 5 be the embodiment of the present application certain district in initial arch structure model；
Fig. 6 is that certain district's inner width of the embodiment of the present application delays arch structure model；
Fig. 7 be the embodiment of the present application certain district in high dynamic vehicle tectonic model；
Fig. 8 is certain district's oblique tectonic model of inwardly projecting carbuncle on the back of the embodiment of the present application；
Fig. 9 be the embodiment of the present application certain district in the extensional tape thickness scattergram of vertical buckling fold；
Figure 10 is the apparatus module schematic diagram of a kind of vertical buckling fold fracture spacing evaluation of the embodiment of the present application.
Detailed description of the invention
For making the purpose of the embodiment of the present application, technical scheme and advantage clearer, below in conjunction with embodiment and attached
Figure, is described in further details the embodiment of the present application.Here, the schematic description and description of the embodiment of the present application is used for
Explain the embodiment of the present application, but be not intended as the restriction to the embodiment of the present application.
Below in conjunction with the accompanying drawings, the detailed description of the invention of the embodiment of the present application is described in further detail.
Fig. 1 is the method flow schematic diagram of a kind of vertical buckling fold fracture spacing evaluation of the embodiment of the present application.As shown in Figure 1
A kind of method of vertical buckling fold fracture spacing evaluation may include that
S101, the geological data of the vertical buckling fold in acquisition study area and well-log information.
S102, calculates described vertical buckling fold extensional tape thickness everywhere according to described well-log information and geological data.
Stratum is cashed during Folding Deformation and is shortened for outer arc elongation and inner arc, forms anticline and to tiltedly.Close to rock
In the middle part of Ceng, have one both without elongation also without shortening neutral-surface, this neutral-surface is referred to as neutral plane.Anticline neutral plane with
Upper, to tiltedly broadly falling into extensional band below neutral plane.
S103, evaluates fracture spacing according to described extensional tape thickness.
Neutral plane is above tensile stress, grows tension fissure, in anticline, more than this face is fold extensional to constructing top
Band, in extensional band, the compaction of reservoir is less, and physical property condition is good, beneficially the gathering of oil gas；Answer for shearing below neutral plane
Power, grows shear crack, is sub-twisted strip bottom this face to structure.At the diverse location of structure, the degree of depth residing for neutral plane is different, extensional
Tape thickness is the most different, and same fracture spacing is the most different, and fracture spacing is directly proportional to extensional tape thickness.
By the flow diagram of above-mentioned Fig. 1, the embodiment of the present application is when carrying out vertical buckling fold fracture spacing and evaluating, by ground
Extensional tape thickness in shake data acquisition target formation form, achieves fracture spacing evaluation further according to extensional tape thickness.The application
Embodiment can complete the reason of fracture spacing evaluation mainly in the case of seismic data signal to noise ratio is relatively low: the present embodiment is only
Need the form according to seismic data interpretation target formation, during constructs for interpretation form, seismic data signal to noise ratio is required not
Height, therefore signal to noise ratio is lower ground shaken data and also can be realized.Subsequent well position is chosen in fracture spacing evaluation and engineering is executed
Instrument has great importance.
In an embodiment of the application, when S102 is embodied as, calculating vertical buckling fold extensional tape thickness everywhere can
To include:
S201, according to buckling fold vertical described in described seismic data acquisition structural deformation degree everywhere and formation thickness.
The vertical quantifiable parameter of buckling fold specifically include that density, speed, elastic modelling quantity, formation thickness, structure width and
Structural deformation degree etc., all points out structural deformation degree and formation thickness and extensional tape thickness in pertinent literature both domestic and external
Relevant, wherein: in vertical buckling fold forming process, the lengthwise position of neutral plane is migrating, and relevant with rock stratum degree of crook, i.e. structure
Make the big key factor that deformation extent is neutral plane vertical migration.
S202, obtains the extensional tape thickness at drilling well according to described well-log information.
The purpose obtaining the extensional tape thickness at drilling well is to provide for the known parameters of subsequent analysis.
S203, obtains the relation between the extensional tape thickness at drilling well and formation thickness and structural deformation degree.
S204, according to the relation between described extensional tape thickness and formation thickness and structural deformation degree, and combines described
Vertical buckling fold structural deformation degree everywhere and formation thickness, it is thus achieved that described vertical buckling fold extensional tape thickness everywhere.
By the flow diagram of Fig. 2, the present embodiment obtains one by the given data of vertical buckling fold drilling well and is applicable to
The relation of whole fold, in conjunction with vertical buckling fold structural deformation degree everywhere and formation thickness, obtains whole vertical buckling fold each
The extensional tape thickness at place.
In an embodiment of the application, when S103 is embodied as, according to vertical buckling fold extensional tape thickness system everywhere
Becoming extensional tape thickness scattergram, fracture spacing is directly proportional to extensional tape thickness, and in extensional tape thickness scattergram, extensional band is the thickest
Place, corresponding fracture spacing is the biggest.
Above-described embodiment can go out target structure according only to seismic data interpretation in the case of seismic data signal to noise ratio is relatively low
The form made, evaluates fracture spacing with extensional tape thickness therein.
In an embodiment of the application, when S203 is embodied as, the selection average curvature of structural deformation degree describes.
The parameter characterizing curvature attributes in seismic interpretation is a lot, and in the research process of the application, the requirement to curvature is higher, it is necessary to energy
Enough embody geologic rule, and average curvature can meet requirement here.
In a specific embodiment of the application, it is thus achieved that study area in body curvature distribution as shown in Figure 3 (in figure numeral
Represent the numbering of drilling well), owing to seismic data quality is poor, the geologic rule that Fig. 3 is reflected is poor, it is impossible to truly reflect structure
Deformation extent, and Fig. 4 is the average curvature scattergram used by the embodiment of the present application, as shown in Figure 4, in tectonic axis portion, structure becomes
The violent curvature of shape is big, and structure both sides deformation extent diminishes, and the geologic rule reflected is consistent with the practical situation in study area.
In an embodiment of the application, when S202 is embodied as, first formulate described vertical according to described well-log information
The preset range of the resistivity of extensional band, crustal stress and porosity in buckling fold；Further according to the resistance of each well section in drilling well
Rate, crustal stress and porosity, and combine described preset range, it is judged that the well segment limit belonging to extensional band in drilling well, obtain
Its thickness.
The neutral plane of vertical buckling fold can be divided into extensional band, intermediate zone and sub-twisted strip up and down, and wherein extensional band has low electricity
Resistance rate, high porosity, the feature of lower earth stress；Intermediate zone has medium resistance rate, intermediate pore degree, the spy of medium crustal stress
Levying, sub-twisted strip has the feature of high resistivity, low-porosity and high-ground stress.Well logging person well logging to vertical buckling fold in advance
Data is studied, and has formulated the resistivity of extensional band, crustal stress and porosity ranges in this vertical buckling fold, is combining every a bite
Bore the resistivity of each well section, crustal stress and porosity in driving a well, determine the extensional band scope bored in driving a well, draw its thickness.
In a specific embodiment of the application, certain a bite drilling well in study area, between well section 5590～5680 meters, its
Resistivity is 20～25 Ω m, average pore 8%～10%, maximally stress 158～168MPa, indulge curved pleat according to this
The stratification range that wrinkle is preset may determine that it is extensional band；Between well section 5680～5752 meters, its resistivity value is 25～115
Between Ω m, average pore is 5%～8%, maximum horizontal principal stress 165～174MPa, presets according to this vertical buckling fold
Stratification range may determine that it is intermediate zone；Between well section 5752～5820 meters, its resistivity value be 120～200 Ω m it
Between, average pore is less than 5%, maximum horizontal principal stress 173～182MPa, the stratification range preset according to this vertical buckling fold
May determine that it is sub-twisted strip.Well section according to above-mentioned extensional band, intermediate zone and sub-twisted strip divides and can draw, this mouthful of drilling well
Extensional tape thickness is 90m.
In an embodiment of the application, being analyzed the seismic interpretation pattern in certain district, certain district is foreland deformation zone,
Growing thrust and nappe, folds types is vertical buckling fold, according to its structural deformation degree, summarizes earthquake interpretation data
Obtain four kinds of geological models: initial anticline, structure tentatively starts deformation, and neutral plane occurs, neutral plane is with overlying strata as tensile stress
State, huckle germinates tension fissure, as shown in Figure 5；Wide slow anticline, structural deformation degree strengthens, crack, huckle
Increase, as shown in Figure 6；High dynamic vehicle, structural deformation degree adds further, and crack, huckle continues to grow, positive thrust fault phase
Opposite direction recoil fault initially forms, but turn-off is less, as shown in Figure 7；Burst anticline, fold-modified ultimate attainment form, recoil
Fault throw becomes big, and structural deformation degree is maximum, and crack, huckle is grown, as shown in Figure 8 most.
From the seismic interpretation pattern analysis in certain district above-mentioned, the fold in this district is applicable to the embodiment of the present application to be provided
Fracture spacing evaluation of programme.Buckling fold vertical to some in this region is analyzed in accordance with the following steps:
1, geological data and the well-log information of this vertical buckling fold are obtained.
2, according to buckling fold extensional tape thickness everywhere vertical described in described well-log information and seismic data acquisition.
The extensional tape thickness calculating described vertical buckling fold according to described well-log information and geological data specifically may include that
(1) according to the seismic data acquisition fold of this vertical buckling fold average curvature everywhere and formation thickness.
(2) the extensional tape thickness at drilling well is obtained in this fold according to described well-log information.
(3) relation between extensional tape thickness and formation thickness and the average curvature at drilling well is obtained in this fold.
The relational process obtained between extensional tape thickness and formation thickness and average curvature can be: will bore in this fold
The formation thickness of Jing Chu and average curvature as dependent variable, carry out binary line as the extensional tape thickness at independent variable, drilling well
Property matching, obtains relationship below:
H=102.07+0.7167 × Ho+0.839×K
In formula, H represents extensional tape thickness, HoRepresenting formation thickness, K represents average curvature.Partial fitting result such as table 1 below
Shown in, the regression criterion in table is less, illustrates that fitting result goodness of fit compared with actual well drilled is higher.
Table 1 part extensional band fitting result is shown
| Extensional tape thickness (rice) | Formation thickness (rice) | Structural deformation degree | Matching thickness (rice) | Residual error |
| 120.5 | 319.735 | 3.71082 | 122.726 | -2.22584 |
| 112.7 | 347.585 | 13.6441 | 118.104 | -5.40434 |
| 122 | 295.278 | 4.10069 | 126.043 | -4.04334 |
| 130 | 320.021 | 1.53662 | 122.749 | 7.25137 |
| 127.7 | 283.388 | 3.05741 | 127.756 | -0.0564001 |
| 132.6 | 302.021 | 8.24791 | 124.783 | 7.81736 |
| 128.8 | 299.923 | 3.30208 | 125.472 | 3.32791 |
| 124.3 | 278.179 | 41.0974 | 125.377 | -1.07657 |
| 121.6 | 295.881 | 1.06667 | 126.207 | -4.60742 |
| 132.2 | 296.844 | 3.23519 | 125.899 | 6.30073 |
| 119.3 | 302.558 | 3.2736 | 125.114 | -5.81366 |
| 124.7 | 292.586 | 0.410556 | 126.712 | -2.01195 |
| 128.6 | 320.722 | 12.3823 | 121.885 | 6.71451 |
| 127.1 | 293.862 | 8.74727 | 125.859 | 1.24066 |
| 123.5 | 296.972 | 3.5365 | 125.857 | -2.35723 |
| 119 | 309.304 | 4.92183 | 124.054 | -5.0558 |
(4) according to above-mentioned fit correlation formula between this vertical buckling fold extensional tape thickness and formation thickness and average curvature,
And combine this vertical buckling fold average curvature everywhere and formation thickness, it is thus achieved that described vertical buckling fold extensional tape thickness everywhere, root
Extensional tape thickness scattergram as shown in Figure 9 is made according to vertical buckling fold extensional tape thickness everywhere.
3, fracture spacing is evaluated according to the extensional tape thickness scattergram shown in Fig. 9.The local extensional band that in Fig. 9, color is the deepest
Thickness is the thickest, and corresponding fracture spacing is the biggest.Vertical buckling fold structure both wings extensional tape thickness is little, and axle portion thickness is big.Correspond to
It is big that fracture spacing also should be axle portion, and both wings are less.
From above embodiments herein, when carrying out vertical buckling fold fracture spacing and evaluating, obtained by geological data
Take the extensional tape thickness in target formation form, realize fracture spacing evaluation further according to extensional tape thickness.The embodiment of the present application can
The reason evaluated to complete fracture spacing in the case of seismic data signal to noise ratio is relatively low is mainly: the present embodiment only needs basis
The form of seismic data interpretation target formation, less demanding to seismic data signal to noise ratio, therefore during constructs for interpretation form
Signal to noise ratio is lower ground shaken data and also can be realized.Subsequent well position is chosen by fracture spacing evaluation and engineering construction has weight
Wanting directive significance, in the thicker i.e. fracture spacing higher position drilling well of extensional band, production capacity is the highest.
In an embodiment of the application, in the car foreland basin gas reservoir of storehouse, the embodiment of the present application is not used to provide
Fracture spacing evaluation methodology before, drilling success is the highest, many mouthfuls of drilling wells failure, and failure well bores meets reservoir lithology and cause especially
Close, development degree of micro cracks in oil is poor.After using the technical scheme that the embodiment of the present invention provides, pre-by certain gas reservoir extensional tape thickness
Survey, obtained comparing and meet geologic rule and the actual extensional tape thickness scattergram of drilling well, this thickness chart is applied to certain gas reservoir
The failure well analysis of causes on, the extensional tape thickness that thickness chart is reflected can reflect this vertical buckling fold fracture spacing distribution:
The place that thickness is big, fracture spacing is big, and drilling well situation is good；The place that thickness is little, fracture spacing is little, and part drilling well is defeated, part
Drilling well also can obtain the industrial gas of high yield after carrying out Large Scale Acidizing pressure break, has preferably implemented gas reservoir fracture spacing distribution spy
Levy.Subsequent development well location is chosen in the fracture spacing distribution that extensional tape thickness figure is reflected and engineer operation provides support.
The embodiment of the present application additionally provides the device that a kind of vertical buckling fold fracture spacing is evaluated, such as the following examples institute
State.Due to this device, to solve the principle of problem to a kind of method that vertical buckling fold fracture spacing is evaluated similar, therefore this device
Implement may refer to the enforcement of a kind of method that vertical buckling fold fracture spacing is evaluated, repeat no more in place of repetition.
As shown in Figure 10, the device of a kind of vertical buckling fold fracture spacing evaluation in the embodiment of the present application may include that
Acquisition module 1001, for obtaining geological data and the well-log information of the vertical buckling fold in study area；
Computing module 1002, for calculating described vertical buckling fold extensional everywhere according to described well-log information and geological data
Tape thickness；
Evaluation module 1003, for evaluating fracture spacing according to described extensional tape thickness.
In the case of in study area, the seismic data quality of vertical buckling fold is poor, embodiments herein only needs basis
The form of seismic data interpretation target formation, obtains extensional tape thickness therein, during constructs for interpretation form provides earthquake
Material signal to noise ratio is less demanding, and therefore signal to noise ratio is lower ground shaken data and also can be realized.Fracture spacing is evaluated subsequent well position
Choose and engineering construction has great importance.
In an embodiment of the application, the extensional tape thickness calculating vertical buckling fold may include that
According to buckling fold vertical described in described seismic data acquisition structural deformation degree everywhere and formation thickness；
The extensional tape thickness at drilling well is obtained according to described well-log information；
Obtain the relation between the extensional tape thickness at drilling well and formation thickness and structural deformation degree；
According to the relation between described extensional tape thickness and formation thickness and structural deformation degree, and combine described vertical curved pleat
Wrinkle structural deformation degree everywhere and formation thickness, it is thus achieved that described vertical buckling fold extensional tape thickness everywhere.
The embodiment of the extensional tape thickness of buckling fold is indulged, by the datum of vertical buckling fold drilling well from above-mentioned calculating
According to obtaining a relation being applicable to whole fold, in conjunction with vertical buckling fold structural deformation degree everywhere and formation thickness,
Extensional tape thickness scattergram to whole vertical buckling fold.
Particular embodiments described above, has been carried out the most in detail purpose, technical scheme and the beneficial effect of the application
Describe in detail bright, be it should be understood that the specific embodiment that the foregoing is only the embodiment of the present application, be not used to limit this Shen
Protection domain please, all within spirit herein and principle, any modification, equivalent substitution and improvement etc. done, all should wrap
Within being contained in the protection domain of the application.
Claims (12)
1. the method that a vertical buckling fold fracture spacing is evaluated, it is characterised in that said method comprising the steps of:
The geological data of the vertical buckling fold in acquisition study area and well-log information；
Described vertical buckling fold extensional tape thickness everywhere is calculated according to described well-log information and geological data；
Fracture spacing is evaluated according to described extensional tape thickness.
2. the method for claim 1, it is characterised in that described according to described well-log information and geological data calculating
Vertical buckling fold extensional tape thickness everywhere includes:
According to buckling fold vertical described in described seismic data acquisition structural deformation degree everywhere and formation thickness；
The extensional tape thickness at drilling well is obtained according to described well-log information；
Obtain the relation between the extensional tape thickness at drilling well and formation thickness and structural deformation degree；
According to the relation between described extensional tape thickness and formation thickness and structural deformation degree, and it is each to combine described vertical buckling fold
The structural deformation degree at place and formation thickness, it is thus achieved that described vertical buckling fold extensional tape thickness everywhere.
3. the method for claim 1, it is characterised in that described according to described extensional tape thickness evaluate crack include: institute
Stating extensional tape thickness is extensional tape thickness scattergram, in described extensional tape thickness scattergram, and described fracture spacing and described extensional
Tape thickness is directly proportional.
4. method as claimed in claim 2, it is characterised in that described structural deformation degree selects average curvature to describe.
5. method as claimed in claim 4, it is characterised in that the extensional tape thickness at described acquisition drilling well and formation thickness
With the relation between structural deformation degree includes:
Using the formation thickness at drilling well and average curvature as the extensional tape thickness at independent variable, drilling well as dependent variable,
Carry out binary linearity matching, extensional tape thickness at drilling well and formation thickness and the relational expression of average curvature described in acquisition.
6. method as claimed in claim 2, it is characterised in that described obtain the extensional at drilling well according to described well-log information
Tape thickness includes:
The resistivity of extensional band, crustal stress and the default model of porosity in described vertical buckling fold is formulated according to described well-log information
Enclose；
According to the resistivity of each well section, crustal stress and porosity in drilling well, and combine described preset range, it is judged that drilling well
In the well segment limit belonging to extensional band, obtain its thickness.
7. the device that a vertical buckling fold fracture spacing is evaluated, it is characterised in that described device includes:
Acquisition module, for obtaining geological data and the well-log information of the vertical buckling fold in study area；
Computing module, for calculating described vertical buckling fold extensional tape thickness everywhere according to described well-log information and geological data；
Evaluation module, for evaluating fracture spacing according to described extensional tape thickness.
8. device as claimed in claim 7, it is characterised in that described according to described well-log information and geological data calculating
Vertical buckling fold extensional tape thickness everywhere includes:
According to buckling fold vertical described in described seismic data acquisition structural deformation degree everywhere and formation thickness；
The extensional tape thickness at drilling well is obtained according to described well-log information；
Obtain the relation between the extensional tape thickness at drilling well and formation thickness and structural deformation degree；
According to the relation between described extensional tape thickness and formation thickness and structural deformation degree, and it is each to combine described vertical buckling fold
The structural deformation degree at place and formation thickness, it is thus achieved that described vertical buckling fold extensional tape thickness everywhere.
9. device as claimed in claim 7, it is characterised in that described evaluate crack according to described extensional tape thickness and include: institute
Stating extensional tape thickness is extensional tape thickness scattergram, in described extensional tape thickness scattergram, and described fracture spacing and described extensional
Tape thickness is directly proportional.
10. device as claimed in claim 8, it is characterised in that described structural deformation degree selects average curvature to describe.
11. devices as claimed in claim 10, it is characterised in that the extensional tape thickness at described acquisition drilling well and ground thickness
Relation between degree and structural deformation degree includes:
Using the formation thickness at drilling well and average curvature as the extensional tape thickness at independent variable, drilling well as dependent variable,
Carry out binary linearity matching, extensional tape thickness at drilling well and formation thickness and the relational expression of average curvature described in acquisition.
12. devices as claimed in claim 8, it is characterised in that described according to described well-log information obtain at drilling well
Property tape thickness includes:
The resistivity of extensional band, crustal stress and the default model of porosity in described vertical buckling fold is formulated according to described well-log information
Enclose；
According to the resistivity of each well section, crustal stress and porosity in drilling well, and combine described preset range, it is judged that drilling well
In the well segment limit belonging to extensional band, obtain its thickness.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110485993A (en) * | 2019-08-06 | 2019-11-22 | 中国石油集团川庆钻探工程有限公司 | A kind of seismic data set height prediction technique |
| CN112302639A (en) * | 2020-10-09 | 2021-02-02 | 成都市城市安全与应急管理研究院 | Curvature characterization method suitable for complex seepage space body of fracture |
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| 周红波 等: "克拉苏构造带褶皱中和面地质特征与纵向位置确定——以克拉苏构造带S构造为例", 《石油地质与工程》 * |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485993A (en) * | 2019-08-06 | 2019-11-22 | 中国石油集团川庆钻探工程有限公司 | A kind of seismic data set height prediction technique |
| CN110485993B (en) * | 2019-08-06 | 2022-05-06 | 中国石油集团川庆钻探工程有限公司 | Seismic data set transformation point prediction method |
| CN112302639A (en) * | 2020-10-09 | 2021-02-02 | 成都市城市安全与应急管理研究院 | Curvature characterization method suitable for complex seepage space body of fracture |
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