CN107387071A - Its hydrocarbon method based on compression and scissor fault structure - Google Patents
Its hydrocarbon method based on compression and scissor fault structure Download PDFInfo
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- 239000004215 Carbon black (E152) Substances 0.000 title claims abstract description 83
- 229930195733 hydrocarbon Natural products 0.000 title claims abstract description 83
- 150000002430 hydrocarbons Chemical class 0.000 title claims abstract description 83
- 230000006835 compression Effects 0.000 title claims abstract description 22
- 238000007906 compression Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 62
- 230000000694 effects Effects 0.000 claims abstract description 49
- 238000004458 analytical method Methods 0.000 claims abstract description 34
- 238000011160 research Methods 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 6
- 238000012216 screening Methods 0.000 claims description 5
- 238000009825 accumulation Methods 0.000 abstract description 22
- 206010017076 Fracture Diseases 0.000 description 80
- 208000010392 Bone Fractures Diseases 0.000 description 76
- 238000003825 pressing Methods 0.000 description 10
- 230000005012 migration Effects 0.000 description 8
- 238000013508 migration Methods 0.000 description 8
- 239000011435 rock Substances 0.000 description 8
- 238000011161 development Methods 0.000 description 6
- 230000018109 developmental process Effects 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 230000002776 aggregation Effects 0.000 description 4
- 238000004220 aggregation Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 241000029523 Procapra gutturosa Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000001350 orogenic effect Effects 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 230000036301 sexual development Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 235000007926 Craterellus fallax Nutrition 0.000 description 1
- 240000007175 Datura inoxia Species 0.000 description 1
- 206010027336 Menstruation delayed Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 239000000562 conjugate Substances 0.000 description 1
- 230000021615 conjugation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 230000005484 gravity Effects 0.000 description 1
- 210000003716 mesoderm Anatomy 0.000 description 1
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- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
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Abstract
The invention provides a kind of its hydrocarbon method based on compression and scissor fault structure, belong to Hydrocarbon Formation Reservoirs field, analyze the Hydrocarbon Formation Reservoirs effect based on fault complexe under the pressure property turned round stress regime, New methods in working is provided for Analysis of Hydrocarbon Accumulation.This method comprises the following steps：Judge whether to belong under same stress regime the fault complexe formed according to breaking property and spatial composing relations first；Then mechanics system analysis is carried out, determines whether to judge whether above-mentioned fault complexe is the fault complexe formed under same stress regime；Furthermore to the fault complexe being judged as under same stress regime, the Hydrocarbon Formation Reservoirs effect of each fracture is analyzed respectively；Finally by the Hydrocarbon Formation Reservoirs effect Overlaying analysis of each fracture, the pattern of hydrocarbon reservoir formation figure of fault complexe is drawn, the Hydrocarbon Formation Reservoirs effect analysis of fault complexe is carried out according to the pattern of hydrocarbon reservoir formation figure of fault complexe.
Description
Technical field
The present invention relates to Hydrocarbon Formation Reservoirs field, more particularly to a kind of its hydrocarbon side based on compression and scissor fault structure
Method.
Background technology
Hydrocarbon Formation Reservoirs refer to the process of oil and gas accumulation, are broken the angle that migration pathway is play in Hydrocarbon accumulation process
Color, it is an important factor for restricting Hydrocarbon Formation Reservoirs；Therefore, the oil-control gas reservoir that breaks is also a kind of important Oil-gas Accumulation Types.In China, respectively
Main oil-gas bearing basin develops disconnected control type oil-gas reservoir, such as, the Bohai gulf basin of east, the Ordos Basin at middle part, west
The Tarim Basin in portion, Zhunger Basin, Caidamu Basin etc.；The Junggar Basin of its Midwest is particularly typical, and its disconnected control type oil-gas reservoir accounts for
Than higher than 70%.
Corresponding to the tectonic stress system of China, east is in tension background, develops positive fracture, so the oil gas being just broken
Accumulation effect research is relatively more, such as Bohai gulf basin；To Midwest, background is predominantly extruded, develops inverse fracture, thus inverse fracture
Hydrocarbon Formation Reservoirs effect study also compared with horn of plenty, such as Tarim Basin, Zhunger Basin and the Caidamu Basin.As can be seen here, contain in China
In the Hydrocarbon Formation Reservoirs effect of oil-and-gas basin, positive fracture obtains relative maturity with inverse fault analysis；And to the Accumulation effect of Strike-slip faulted,
Especially pressure turn round Strike-slip faulted and the inverse fracture under property mechanical background to be combined into Tibetan effect study less.
One time Hydrocarbon accumulation process is seldom controlled by single fault, and is mainly occurred in the form of being combined into Tibetan；It is so-called
It is exactly that the fracture formed under same stress regime is integrally considered in Analysis of Hydrocarbon Accumulation to be combined into Tibetan, and is more than focusing on
The a certain single fault directly related with a certain oil reservoir.Up to the present, the Hydrocarbon Formation Reservoirs of correlation are rarely mentioned in disclosed document
Analysis method.
The content of the invention
Analyze and be based on it is an object of the invention to provide a kind of its hydrocarbon method based on compression and scissor fault structure
The Hydrocarbon Formation Reservoirs effect of fault complexe, New methods in working is provided for Analysis of Hydrocarbon Accumulation under the pressure property turned round stress regime.
The invention provides a kind of its hydrocarbon method based on compression and scissor fault structure, comprise the following steps：
(1) actual geology and data are based on, the fracture of research area is analyzed, fracture is hidden in screening control；To the group of each fracture
Close feature to be analyzed, judge whether to belong under same stress regime the fracture formed according to breaking property and spatial composing relations
Combination；
(2) the above-mentioned fault complexe formed that belongs under same stress regime is carried out with Sylvester simple shears pattern
Mechanics system is analyzed, and determines whether to judge whether above-mentioned fault complexe is the fault complexe formed under same stress regime；
(3) to the fault complexe being judged as in step (2) under same stress regime, fracture class is divided according to breaking property
Type, the Hydrocarbon Formation Reservoirs effect of each fracture is analyzed respectively；
(4) the Hydrocarbon Formation Reservoirs effect Overlaying analysis for being respectively broken step (3), the pattern of hydrocarbon reservoir formation of fault complexe is drawn
Figure, the Hydrocarbon Formation Reservoirs effect analysis of fault complexe is carried out according to the pattern of hydrocarbon reservoir formation figure of fault complexe.
As preferable technical scheme, the standard that fracture is hidden in the screening control is that fracture belt along oil-gas pool distribution is to control
Hide fracture.
As preferable technical scheme, in the mechanics system analysis, two groups in the fracture that high angle intersects and classical mould
R in formula is similar to R ＇ features, the fault complexe formed under judging it for same stress regime.
The beneficial effect of the above method of the present invention has：
(1) present invention provides new analysis method for Hydrocarbon Formation Reservoirs, that is, proposes the form analysis oil gas with fault complexe
Accumulation effect.
(2) Analysis of Hydrocarbon Accumulation method of the invention tentatively establish pressure turn round under property stress regime fault complexe feature and its
Hydrocarbon Formation Reservoirs effect analysis flow, combine Analysis of Hydrocarbon Accumulation for compression and scissor fault and provide example, be that China is especially western
The oil-gas bearing basin oil-gas exploration for developing compression and scissor fault system provides guidance.
Brief description of the drawings
Fig. 1 is the Northwestern Margin of Junggar Basin rupture System figure of the embodiment of the present invention；
Fig. 2 is that the pressure of the embodiment of the present invention turns round rupture System simple shear ideograph；
Fig. 3 is inverse fracture and its derivative structures ideograph of the embodiment of the present invention；
Fig. 4 is the Strike-slip faulted and its pattern of hydrocarbon reservoir formation figure of the embodiment of the present invention；
Fig. 5 is the compression and scissor fault system Reservoir model figure of the embodiment of the present invention；
Fig. 6 is the Northwestern Margin of Junggar Basin compression and scissor fault system oil-gas reservoir spatial distribution map of the embodiment of the present invention.
Embodiment
The technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described implementation
Example only part of the embodiment of the present invention, rather than whole embodiments.It is common based on the embodiment in the present invention, this area
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
The embodiments of the invention provide a kind of its hydrocarbon method based on compression and scissor fault structure, including：
S1：Based on actual geology and data, the fracture of research area is analyzed, fracture is hidden in screening control；To the group of each fracture
Close feature to be analyzed, judge whether to belong under same stress regime the fracture formed according to breaking property and spatial composing relations
Combination.
In this step, according to the fracture of research area and the relation of hydrocarbon distribution, that fracture on the main edge of oil-gas reservoir
Band distribution can be considered as control and hide fracture belt, according to breaking property and spatial composing relations, judge whether it belongs to same stress solid
System, such as extruding typically only form inverse fracture, and shearing is general to only form Strike-slip faulted, and it is inverse disconnected to press torsion property system then to be formed
Split the combination with Strike-slip faulted.
S2：The above-mentioned fault complexe formed that belongs under same stress regime is carried out with Sylvester simple shears pattern
Mechanics system is analyzed, and determines whether to judge whether above-mentioned fault complexe is the fault complexe formed under same stress regime.
In this step, the analysis of mechanics system is theory analysis, and S1 is broken with the Sylvester simple shear patterns of classics
Split combination to be analyzed, two groups of fractures intersected in high angle are similar to R ＇ features to the R in classical mode, it can be determined that it is
The fault complexe formed under one stress regime.
S3：To the fault complexe being judged as in step S2 under same stress regime, fracture mode is divided according to breaking property,
The Hydrocarbon Formation Reservoirs effect of each fracture is analyzed respectively.
This step is split to the fault complexe established in step S2 according to property, then its Hydrocarbon Formation Reservoirs is discussed respectively
Effect, i.e., it is similar with the analysis of single mass Hydrocarbon Formation Reservoirs effect, such as positive fracture, inverse fracture and the Hydrocarbon Formation Reservoirs of Strike-slip faulted
Effect etc..
S4：The Hydrocarbon Formation Reservoirs effect Overlaying analysis that step S3 is respectively broken, the pattern of hydrocarbon reservoir formation figure of fault complexe is drawn,
The Hydrocarbon Formation Reservoirs effect analysis of fault complexe is carried out according to the pattern of hydrocarbon reservoir formation figure of fault complexe.
This step is analyzed the Accumulation effect of step S3 each fracture, then carries out Overlaying analysis, and formation one is comprehensive
The Accumulation effect pattern of the compression and scissor fault system of conjunction.Hydrocarbon Formation Reservoirs effect problem core due to being broken oil-gas reservoir is that fracture exists
Institute's role problem in Hydrocarbon Migration And Accumulation, the judgement to oil-gas migration track are the key links of Hydrocarbon Formation Reservoirs effect.
This step analyzes compression and scissor fault combination pattern of hydrocarbon reservoir formation first, i.e. how analyzing oil and gas is in such fault complexe
Migration；Then go to analyze its Hydrocarbon Formation Reservoirs effect, the i.e. Spatial Distribution Pattern of hydrocarbon reservoiring in this manner.
In order to become apparent from introducing the oil-gas reservoir based on compression and scissor fault structure point that the embodiment of the present invention is provided in detail
Analysis method, is illustrated below with reference to specific embodiment.
By taking Northwestern Margin of Junggar Basin compression and scissor fault system as an example.
S1：Based on actual geology and data, the fracture of research area is analyzed, fracture is hidden in screening control；To the group of each fracture
Close feature to be analyzed, judge whether to belong under same stress regime the fracture formed according to breaking property and spatial composing relations
Combination.
As shown in figure 1, Northwestern Margin of Junggar Basin is primarily present two groups of fractures, one group be east northeast to thrust faults body
System；Second, the strike-slip fault system of NW trending.
(1) NE is to fracture system
NE trending fault system mainly by screw oil expeller, grams hundred, big thrusting fault is formed Wu Xiasan；Each fracture belt scale phase
Seemingly, wide 10~20km, east northeast are made up of to the about 80km that extends the inverse fracture of tens of different levels.Three large fracture belts belong to
High angle thrust faults, its leading peak inclination maximum push away up to more than 70 degree and cover displacement and change in the range of 1~20km；It is main living
The dynamic phase is all in the Indosinian epoch.Three large fracture belts constitute In Northwestern Margin area east northeast to large-scale zone of bruchfalten, are that oil gas is enriched with the most in front of the mountains
Zone, form three big oil-gas accumulation zones, two Ge Bailiyou areas.
(2) NW is to fracture system
Northwestward faults system has obvious strike slip fault, and fracture inclination angle is big, near vertical；Northwestward faults system is to north
East orientation fracture system carries out sectional-regulated, and both interact Northwestern Margin of Junggar Basin local protectionism into some fault blocks.
NW is to Fault dimension and NE to being broken close, about 80km, wherein about 10km be in Igneous Rocks of Orogenic Belts area, 20km be in it is fiery into
Rock-clastic rock transition region, i.e. zone of bruchfalten, remaining about 60km are in chip petrographic province, i.e. sloped region.It is formed at the Indosinian epoch, in swallow
The mountain phase inherits sexual development, and activity is strong.In Northwestern Margin area northwestward faults are more typically the fracture of Mongolian gazelle spring and big sieve's dwarf ditch
Fracture, in addition, also a series of fractures not yet named.
As can be seen here, combining form of the Northwestern Margin of Junggar Basin rupture System with NE to inverse fracture with NW to Strike-slip faulted
Output, " intersecting in length and breadth " rupture System to show unique characteristics is formd, the fault complexe of " walking sliding+inverse " is seen as from fault complexe.
S2：The above-mentioned fault complexe formed that belongs under same stress regime is carried out with Sylvester simple shears pattern
Mechanics system is analyzed, and determines whether to judge whether above-mentioned fault complexe is the fault complexe formed under same stress regime.
The fault complexe " walking sliding+inverse " analyzed in S1 can be carried out under compression and scissor fault system with simple shear pattern
Analysis and explanation.According to the Sylvester simple shear patterns of large-scale compression and scissor fault, referring to Fig. 2, along main displacement band (PDZ),
Two groups of con jugate shear fracture planes of early development, i.e. Riedel shearings, R ruptures are cut into main shear band (Y) rotation direction identical, its
Intersect with main shear band low-angle and (be less than 45 °), oppositely oriented is cut into R ＇ ruptures, and it intersects with main shear band wide-angle
(being more than 45 °)；Extensional T is formed on the acute bisectrix of R and R ＇ ruptures to rupture.Mid-term develops one group of new pressure shear fracture P, its
Symmetrical output is ruptured with R.Late period R and P rupture rotation and the main shear band that levels off to, while there is engine echelon fold.
Northwestern Margin of Junggar Basin pressure turns round the stress shear direction of property stress regime parallel to NE to orogenic belt,
(1) mechanics origin mechanisms of the NE to rupture System
NE outputs in the form of thrust faults to rupture System, form large-scale thrusting fault；On its origin cause of formation system
Dispute is still deposited, mainly there are two kinds of viewpoints, when extrusion stress system, second, sliding stress regime is walked in pressure torsion；Comprehensive study of the present invention
Two kinds of viewpoints think that the difference in this cognition is to unite largely due to the difference in the understanding to fault complexe and yardstick
One.Though three big thrusting faults rush property output with inverse, it is made up of a series of medium and small inverse fracture, i.e., inverse
Fracture is mutually rather than because its root walks cunning to press under torsional stress system；" positive flower structure " feature of i.e. available Strike-slip faulted
Explain, there is its stress mechanism pressure to turn round property, and inverse be fractured into away slips over the inverse fracture that journey is derived from.So corresponding pressure is turned round
Property stress mode, referring to Fig. 2, NE intersects to rupture System with principal stress plane low-angle, should be R rupture.
(2) mechanics origin mechanisms of the NW to rupture System
NW has strike slip fault in itself to cross fracture, is the conjugated shear joins that compression and scissor fault system mesoderm growing early stage is formed
Face R ＇；It is all the Indosinian epoch with formation of the NE to fracture system and main evolutionary phase, and it is later than NE to fracture, with realization pair
It splits adjustment, and its succession sexual development in Stage of Yanshan further enhances this adjustment effect, thus forms and show unique characteristics
" walk sliding+inverse " fault complexe, its Northwestern Margin of Junggar Basin cuts into a series of fault block.
S3：To the fault complexe being judged as in step S2 under same stress regime, fracture mode is divided according to breaking property,
The Hydrocarbon Formation Reservoirs effect of each fracture is analyzed respectively.
(1) Hydrocarbon Formation Reservoirs effects of the NE to inverse rupture System
The Hydrocarbon Formation Reservoirs effect of the inverse fracture of Northwestern Margin of Junggar Basin has the common feature of inverse fracture Accumulation effect, i.e., just
It is to be limited by be broken the structure of itself.From inverse fracture and its derivative structures ideograph, it is distributed referring to Fig. 3, extension fracture T
In main fracture belt F driving disc spacing pressing, and shear fracture S1With S2The output in the form of conjugation, it is distributed in main fracture belt F driven disc.
It was found from the stress analysis in crack, tension fissure is parallel to minimum principal stress σ3, the ambient stress in tension, it is opening；
And shear fracture is predominantly parallel to maximum principal stress σ1, the ambient stress in extruding, it is closure state；Two kinds of heterogeneitys,
It is poor that the rupture of state using main fracture belt F as interface forms the obvious force and velocity of a current, i.e., is being reduced from driven disc to driving disc spacing pressing fluid potential,
Driving disc spacing pressing is more conducive to the migration of oil gas.So the Hydrocarbon Formation Reservoirs effect of inverse fracture is that driving disc spacing pressing is dredged, it is more conducive to oil gas
Driving disc spacing pressing side Aggregation indica；Driven disc blocks, and the oil gas positioned at driven disc side is blocked into Tibetan, hydrocarbon containing fluid nearby
Body is migrated in fracture belt in " ascending-type "..
(2) Hydrocarbon Formation Reservoirs effects of the NW to strike-slip fault system
The Hydrocarbon Formation Reservoirs effect of Northwestern Margin of Junggar Basin NW to strike-slip fault system is unique；Specifically, NW
It is complicated to Strike-slip faulted rock property, the development of its structure is have impact on, it has cut through brittle igneous province and plasticity simultaneously
Chip petrographic province, referring to Fig. 4.Found from the development characteristics analysis of Strike-slip faulted structure in different surrounding rock property, it is in fragility
Igneous province, the structure of driving disc spacing pressing and development degree of micro cracks in oil be better than driven disc, and in chip petrographic province contrast, fire into
Both the transition region of rock-clastic rock approximations.Fault structure is more developed, and especially the crack near its main fracture belt is more developed, its
The force and velocity of a current is lower, is more advantageous to the migration of fluid；Thus analysis is found, is entered from chip petrographic province to igneous province fluid in " U-shaped "
Row lateral migration, referring to Fig. 4.As can be seen here, NW has obvious segmenting to the Accumulation effect of Strike-slip faulted, i.e., in sloped region
(chip petrographic province), driven disc is more beneficial for the Aggregation indica of oil gas；In zone of bruchfalten (clastic rock-igneous rock transition region) due to by vertical
To the adjustment of inverse fracture, be advantageous to the Aggregation indica of oil gas in " intersection in length and breadth "；In igneous province, can theoretically be formed
Oil-gas reservoir, and driving disc spacing pressing is mainly gathered in, the lateral migration of oil gas will not typically reach this area, especially be filled in zone of bruchfalten by inverse
After the adjustment of damming of fracture.
S4：The Hydrocarbon Formation Reservoirs effect Overlaying analysis that step S3 is respectively broken, the pattern of hydrocarbon reservoir formation figure of fault complexe is drawn,
The Hydrocarbon Formation Reservoirs effect analysis of fault complexe is carried out according to the pattern of hydrocarbon reservoir formation figure of fault complexe.
(1) pattern of hydrocarbon reservoir formation of fault complexe " is walked sliding+inverse "
The Reservoir model of " walking sliding+inverse " fault complexe is as shown in figure 5, inverse fracture connects hydrocarbon source rock and storage with Strike-slip faulted
Layer, plays elicitation effect in Hydrocarbon accumulation process；Wherein it is inverse be fractured into it is vertical dredge, and Strike-slip faulted is laterally dredges, its
Fault-fold (rank) band shows as " intersecting in length and breadth " joint control and hidden, and oil gas is particularly enriched with.
(2) the Hydrocarbon Formation Reservoirs effect of fault complexe " is walked sliding+inverse "
- using Northwestern Margin of Junggar Basin gas exploration application achievements as example
Northwestern Margin of Junggar Basin oil-gas exploration it was verified that the region that zone of bruchfalten is oil gas to be enriched with the most, especially
Jointly control two areas the most obvious in " intersecting in length and breadth "：Karamy area and Wu Er standing grain area, corresponding to two hundred
Li You areas.It is to move towards sloped region for the exploration trend of Northwestern Margin of Junggar Basin, and the area is away from thrusting fault (fault-fold
Band), exploration can not be instructed into the theoretical of Tibetan with the thrust faults of classics；Therefore breaking under same stress regime can be used
The invention for splitting combination Hydrocarbon Formation Reservoirs effect solves this exploration and theoretical puzzle well.Specifically：
One stress regime-" the pressure property turned round stress regime "
A kind of fault complexe-" walking sliding+inverse "
Two oil-gas exploration directions-" zone of bruchfalten " and the segmenting Hydrocarbon Formation Reservoirs of " sloped region " are theoretical.
The rupture System of Northwestern Margin of Junggar Basin is placed under same stress regime and analyzed, pull out " walk to slide+
It is inverse " fault complexe, sloped region is taken to from fault-fold with the Hydrocarbon Formation Reservoirs effect of this fault complexe and carries out segmentation exploration, specifies oil gas
Reservoiring theory and the selected objective target of oil-gas exploration.
(1) zone of bruchfalten Hydrocarbon Formation Reservoirs effect and exploration targets are preferred
Overlaying influence of the zone of bruchfalten by NE to inverse rupture System with NW to strike-slip fault system, wherein merely from inverse fracture
Seen in Hydrocarbon Formation Reservoirs effect, the driving disc spacing pressing (upper disk) of fracture is the predominant direction of oil and gas accumulation；Merely from Strike-slip faulted
Seen in Hydrocarbon Formation Reservoirs effect, it is in igneous rock-clastic rock transition region, and driving disc spacing pressing is suitable with driven disc fluid potential energy, favorably
In oil and gas accumulation；In general " intersect in length and breadth ", that is, walk the sliding Aggregation indica with inverse Fault crossing most beneficial for oil gas.
Wherein the most typical two areas are：In Karamay Oil Region and Wu Er He You areas, it is exactly in the friendship of two kinds of property fractures
At remittance, referring to Fig. 6.For the oil-gas exploration of zone of bruchfalten, still based on cross-country in length and breadth, the emphasis of exploration is to NW
Identification and the exploration of advantage reservoir to Strike-slip faulted.
(2) sloped region Hydrocarbon Formation Reservoirs effect and exploration target area are preferred
Sloped region is single Strike-slip faulted control Tibetan area, and controlled simultaneously in Strike-slip faulted segmentation away from thrusting fault
The chip petrographic province of Tibetan, that is, it is exactly that driven disc construction is better than driving disc spacing pressing with fracture development, there is lower fluid potential energy, be advantageous to oil
Gas is into Tibetan.Exploration practices prove that along the fracture of Mongolian gazelle spring with the other NW trending Strike-slip faulteds in Wu Er standing grain area, oil-gas reservoir is main
The driven disc of fracture is distributed in, referring to Fig. 6, oil-gas exploration of this understanding to sloped region has important theory directive significance.
For the oil-gas exploration direction of sloped region, think by the achievement in research of the present invention, sloped region is explored with Strike-slip faulted driven disc
Based on be advantage exploration trend, wherein to NW as the identification of Strike-slip faulted is the center of gravity of work.
To sum up, method of the invention tentatively establishes fault complexe feature and its Hydrocarbon Formation Reservoirs effect under the pressure property turned round stress regime
Analysis process is answered, combining Analysis of Hydrocarbon Accumulation for compression and scissor fault provides example, is the especially western development pressure property turned round in China
The oil-gas bearing basin oil-gas exploration of rupture System provides guidance.
Claims (3)
1. its hydrocarbon method based on compression and scissor fault structure, it is characterised in that comprise the following steps：
(1) actual geology and data are based on, the fracture of research area is analyzed, fracture is hidden in screening control；Combination to each fracture is special
Sign is analyzed, and judges whether to belong under same stress regime the fracture group formed according to breaking property and spatial composing relations
Close；
(2) mechanics is carried out to the above-mentioned fault complexe formed that belongs under same stress regime with Sylvester simple shears pattern
System is analyzed, and determines whether to judge whether above-mentioned fault complexe is the fault complexe formed under same stress regime；
(3) to the fault complexe being judged as in step (2) under same stress regime, fracture mode is divided according to breaking property, point
The Hydrocarbon Formation Reservoirs effect of each fracture is not analyzed；
(4) the Hydrocarbon Formation Reservoirs effect Overlaying analysis for being respectively broken step (3), the pattern of hydrocarbon reservoir formation figure of fault complexe, root are drawn
The Hydrocarbon Formation Reservoirs effect analysis of fault complexe is carried out according to the pattern of hydrocarbon reservoir formation figure of fault complexe.
2. its hydrocarbon method according to claim 1 based on compression and scissor fault structure, it is characterised in that the sieve
The standard that fracture is hidden in selected control hides fracture for the as control of fracture belt along oil-gas pool distribution.
3. its hydrocarbon method according to claim 1 based on compression and scissor fault structure, it is characterised in that the power
Learn in system analysis, two groups of fractures intersected in high angle are similar to R ＇ features to the R in classical mode, judge that it is answered to be same
The fault complexe formed under power system.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110361794A (en) * | 2019-07-30 | 2019-10-22 | 西安幔源油气勘探开发研究有限公司 | Method based on the theoretical searching control hydrocarbon of curtain source oil gas, control hiding Strike-slip faulted |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7516787B2 (en) * | 2006-10-13 | 2009-04-14 | Exxonmobil Upstream Research Company | Method of developing a subsurface freeze zone using formation fractures |
| CN105607144A (en) * | 2016-02-19 | 2016-05-25 | 中国石油集团川庆钻探工程有限公司 | Complex carbonate oil and gas reservoir formation mode evaluation method |
| CN106324701A (en) * | 2016-10-10 | 2017-01-11 | 中国海洋石油总公司 | Petroliferous basin analysis method based on fracture-uplift linkage |
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| US7516787B2 (en) * | 2006-10-13 | 2009-04-14 | Exxonmobil Upstream Research Company | Method of developing a subsurface freeze zone using formation fractures |
| CN105607144A (en) * | 2016-02-19 | 2016-05-25 | 中国石油集团川庆钻探工程有限公司 | Complex carbonate oil and gas reservoir formation mode evaluation method |
| CN106324701A (en) * | 2016-10-10 | 2017-01-11 | 中国海洋石油总公司 | Petroliferous basin analysis method based on fracture-uplift linkage |
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| CN110361794A (en) * | 2019-07-30 | 2019-10-22 | 西安幔源油气勘探开发研究有限公司 | Method based on the theoretical searching control hydrocarbon of curtain source oil gas, control hiding Strike-slip faulted |
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