CN109339752A - Oil reservoir development method based on the phlogisticated air displacement of reservoir oil - Google Patents
Oil reservoir development method based on the phlogisticated air displacement of reservoir oil Download PDFInfo
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- 238000011161 development Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 31
- 230000035699 permeability Effects 0.000 claims abstract description 15
- 239000011148 porous material Substances 0.000 claims abstract description 11
- 238000003325 tomography Methods 0.000 claims abstract description 9
- 239000003921 oil Substances 0.000 claims description 108
- 239000007789 gas Substances 0.000 claims description 63
- 239000007924 injection Substances 0.000 claims description 53
- 238000002347 injection Methods 0.000 claims description 53
- 238000004458 analytical method Methods 0.000 claims description 14
- 238000012360 testing method Methods 0.000 claims description 12
- 238000004088 simulation Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000010779 crude oil Substances 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 239000002341 toxic gas Substances 0.000 claims description 4
- 239000011435 rock Substances 0.000 claims description 3
- 230000008595 infiltration Effects 0.000 claims 1
- 238000001764 infiltration Methods 0.000 claims 1
- 238000000605 extraction Methods 0.000 abstract description 3
- 238000011160 research Methods 0.000 description 17
- 238000005516 engineering process Methods 0.000 description 9
- 238000009826 distribution Methods 0.000 description 8
- 238000011084 recovery Methods 0.000 description 8
- 239000012530 fluid Substances 0.000 description 7
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000005553 drilling Methods 0.000 description 4
- 206010017076 Fracture Diseases 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 208000010392 Bone Fractures Diseases 0.000 description 2
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- 238000012544 monitoring process Methods 0.000 description 2
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- 239000000243 solution Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 238000013499 data model Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
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- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002332 oil field water Substances 0.000 description 1
- 239000004058 oil shale Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
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- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
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Classifications
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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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/166—Injecting a gaseous medium; Injecting a gaseous medium and a liquid medium
- E21B43/168—Injecting a gaseous medium
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Abstract
The embodiment of the present invention provides a kind of oil reservoir development method based on the phlogisticated air displacement of reservoir oil, this method comprises: the geologic data in acquisition presumptive area；The collected geologic data is compared with respective threshold range, in the case where the geologic data of the presumptive area meets the respective threshold range, judges the presumptive area for the oil reservoir region that can inject phlogisticated air；Wherein, the geologic data includes: reservoir development status information, tomography distributed intelligence, average pore and mean permeability information, relative oil density type, reservoir pressure coefficient and temperature gradient information.By acquiring the geologic data of presumptive area and being compared with respective threshold range to determine the region that phlogisticated air can be injected and carry out the displacement of reservoir oil, operating area is provided to exploit oil field based on phlogisticated air oil extraction methods, is laid the foundation for the practical exploitation in later period oil field.
Description
Technical field
The present invention relates to injection gas displacements, more particularly to a kind of oil reservoir development method based on the phlogisticated air displacement of reservoir oil.
Background technique
As newly-increased verified oil reserves constantly rise with the hyposmosis reserves proportion that do not employ in petroleum reserves is verified, add
More and more waterflooding extraction LOW PERMEABILITY OILFIELD DEVELOPMENT effects it is poor, show that water injection pressure is high, stratum energy in the process of development
Measure low phenomenon.In order to improve such oil reservoir development level, there is an urgent need to change development scheme, finds the polynary contour cost of drive and open
Conventional development technique except originating party formula.
The phlogisticated air displacement of reservoir oil is to have both low cost and low-risk advantage, is developed on the basis of air oil drive and oily nitrogen flooding
The development technique come.Oxygen volume content in air, which is reduced to 10% or less, nitrogen content, increases to 90% or more air
It as injected media, oxygen content is reduced, reduces combustible gas explosion, upper flammable limit (UFL) concentration, mid-deep strata, Deep Reservoirs are opened
Hair be it is safer, this injected media is referred to as phlogisticated air, is known as subtracting by the development scheme of displacing medium of phlogisticated air
Oxygen air oil drive.
Phlogisticated air Flooding Technology Research and early start is practiced in the 1960s, by Amoco company in the U.S.
Implement in the oil field Sloss of cloth Lars California.50 years later, it is external to air injection improve recovery efficiency technique test indoors, oil reservoir
Numerical simulation etc. carries out numerous studies and application.Subtract oxygen sky with the development of air compressor and nitrogen producing craft in China
Gas drive technology enters the application development stage after 2010, and the Liaohe River, grand celebration, Jilin, TulufanHami oil field have successively all carried out subtracting oxygen
Air drives pilot test, and research has also all been carried out in the oil fields such as triumph, huge port, extension.Phlogisticated air drives technology and increasingly tends into
Ripe, being expected to become another after water injection technology has the development scheme that value is widely applied.But the phlogisticated air displacement of reservoir oil at present
Hiding engineering proposal research still belongs to the starting stage, each oil field research method disunity, project study none can for reference
Method carrys out many inconveniences to practical study work belt.
Summary of the invention
The purpose of the embodiment of the present invention is that providing a kind of oil reservoir development method based on the phlogisticated air displacement of reservoir oil, this method passes through
It acquires the geologic data of presumptive area and is compared with respective threshold range to determine that phlogisticated air, which can be injected, carries out the displacement of reservoir oil
Region, for based on phlogisticated air oil extraction methods exploit oil field operating area is provided, for later period oil field it is practical exploit lay the foundation.
To achieve the goals above, the embodiment of the present invention provides a kind of oil reservoir development method based on the phlogisticated air displacement of reservoir oil,
It is characterized in that, this method comprises:
Acquire the geologic data in presumptive area；
The collected geologic data is compared with respective threshold range, the geologic data symbol of the presumptive area
In the case where closing the respective threshold range, the presumptive area is judged for the oil reservoir region that can inject phlogisticated air；
Wherein, the geologic data includes: reservoir development status information, tomography distributed intelligence, average pore and is averaged
Permeability information, relative oil density type, reservoir pressure coefficient and temperature gradient information.
Optionally, the geologic data of the presumptive area meets the case where respective threshold range and includes:
The reservoir development state of the presumptive area is that the whole district develops or reservoir development state is successively decreased to a direction；
The edge of the presumptive area is major fault；
The presumptive area is low porosity and low permeability reservoir；
It is middle matter crude oil or light crude oil according to the presumptive area relative oil density type；And
The reservoir pressure coefficient of the presumptive area is between 0.95-1.0 and temperature gradient is in 3.2-3.4 DEG C/100m.
Optionally, this method comprises:
Well net deployment shape is determined according to the structural property of the oil reservoir region for injecting phlogisticated air and oil bearing formation property.
Optionally, this method further include:
The quantity of gas injection well described in well pattern and the producing well is determined by numerical simulation analysis；
Wherein, the numerical simulation analysis include it is following at least one: compare different development schemes, the different gas injection sides of comparison
Formula compares different well spacing difference well type, the different gas injection speeds of comparison, comparison different gas-injection oil-production opportunitys in well pattern and compares not
Same gas injection rate.
Optionally, this method comprises:
The oil reservoir region of phlogisticated air can be injected described in acquisition in real time before gas injection, gas injection well in gas injection and/or after gas injection
In status information, and the status information is sent to monitoring center.
Optionally, the status information include it is following at least one: well head pressure, gas trend, gas in-position, well
It is interior to whether there is toxic gas.
Optionally, this method further include:
The crude oil that acquisition can inject the oil reservoir region of phlogisticated air carries out rock core displacement test, calculates oil displacement efficiency.
Through the above technical solutions, can by the geologic data of collected presumptive area respectively with corresponding threshold range
It is compared, determines the oil reservoir region that phlogisticated air can be injected in the presumptive area.By by the ground prime number of the presumptive area
According to being subdivided into reservoir development status information, tomography distributed intelligence, average pore and mean permeability information, relative oil density
Type, reservoir pressure coefficient and temperature gradient information, the geologic data of the comprehensive analysis presumptive area, to be driven based on phlogisticated air
Oil carries out the geological research before oil reservoir exploitation and provides explication de texte information.
The other feature and advantage of the embodiment of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is to further understand for providing to the embodiment of the present invention, and constitute part of specification, under
The specific embodiment in face is used to explain the present invention embodiment together, but does not constitute the limitation to the embodiment of the present invention.Attached
In figure:
Fig. 1 is the flow diagram that determination provided in an embodiment of the present invention can inject phlogisticated air region；
Fig. 2 is the flow diagram of the oil reservoir development method provided in an embodiment of the present invention based on the phlogisticated air displacement of reservoir oil.
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the embodiment of the present invention.It should be understood that this
Locate described specific embodiment and be merely to illustrate and explain the present invention embodiment, is not intended to restrict the invention embodiment.
The noun of locality in the present invention, in the absence of explanation to the contrary, used such as " upper and lower, left and right ", " interior,
Outside ", " remote, close " refers to the direction with reference to attached drawing, and therefore, use direction term is for illustrating not to be to limit the present invention.
Fig. 1, which shows determination provided in an embodiment of the present invention, can inject the flow diagram in phlogisticated air region, such as Fig. 1 institute
Show, needs to determine the condition whether presumptive area meets injection phlogisticated air before carrying out the displacement of reservoir oil by injection phlogisticated air, therefore,
It can be by acquiring the geologic data of presumptive area, and collected geologic data is compared with corresponding threshold range,
In the case where the geologic data of presumptive area meets the respective threshold range, presumptive area is judged for phlogisticated air can be injected
Oil reservoir region.Wherein, which can be subdivided into reservoir development status information, tomography distributed intelligence, average pore
And mean permeability information, relative oil density type, reservoir pressure coefficient and temperature gradient information.
For the analysis of the reservoir development status information of presumptive area, storage can be analyzed by the fine Division and contrast of substratum
Layer developmental condition.It specifically, can be 3 substratums by STRATIGRAPHIC DIVISION according to the cycle of sedimentation, wherein the first substratum can be reservoir
The stratum of whole district's development, the second substratum can be able to be for the stratum that reservoir development state is successively decreased to a direction, third substratum
The unstable stratum of reservoir distribution.Wherein, for reservoir development state aspect, the first substratum can be injected with the second substratum satisfaction to be subtracted
The condition of the oil reservoir region of oxygen air, i.e., the reservoir development state of presumptive area be the whole district develop or reservoir development state to certain
In the case that one direction is successively decreased, meet the reservoir development condition that can inject the oil reservoir region of phlogisticated air.
For the analysis of the tomography distributed intelligence of presumptive area, carries out tectonic interpretation and oil reservoir closes Journal of Sex Research, weight
Point accurately describes the property of fracture system, occurrence and distribution characteristics, completes substratum rank micro-structure map compilation, complete
Journal of Sex Research, study emphasis fault sealing Journal of Sex Research are closed at oil reservoir.Meeting in the case where the edge of presumptive area is tomography can
Inject the tomography distribution occasion of the oil reservoir region of phlogisticated air.It, can be to prevent in the case where the edge of presumptive area is major fault
The phlogisticated air only injected overflows.
It can also carry out reservoir fine and portray description, specifically, pass through reservoir sedimentation phase, physical property characteristic, reservoir space class
The vertically and horizontally distribution characteristics research, meticulous depiction oil-bearing sand bodies of type, pore structure characteristic, reservoir, geometric shape to sand body and its
Expanded range is identified and is predicted, each sand body stacked relation and connectivity are specified；And it is quick to carry out reservoir feature, reservoir
Perception is studied every interbed distribution feature and closed performance, predicts target zone characteristics of fracture development and distribution.
Analyze fluid distrbution and fluid properties.The rule that oil, gas and water are distributed；Obtain ground degassing oil physical property and
The high pressure property of in-place oil；Oil field water physics, chemical property.
The analysis of average pore and mean permeability information for presumptive area, to low-permeability oil deposit gas drive seepage flow machine
Reason and seepage flow characteristics research.To seepage environment feature (pore structure, capillary pressure, Jamin effect, moveable gel)
It is studied；Oil gas two-phase starting pressure and percolation law are studied, the non-thread of percolation in low permeability oil reservoir is further recognized
Property rule.Specifically, the average pore of presumptive area can be calculated and mean permeability and compared with respective threshold range
Compared with, determine whether reservoir is low porosity and low permeability permeable layers in presumptive area, presumptive area reservoir be low porosity and low permeability permeable layers the case where
Lower satisfaction can inject the average pore and mean permeability condition of the oil reservoir region of phlogisticated air.
It, can be original in presumptive area reservoir by calculating for the analysis of the relative oil density type of presumptive area
Relative density, in presumptive area reservoir it is original belong in meet under matter is original or the original situation of lightweight and can inject phlogisticated air
Oil reservoir region relative oil density type condition.
The analysis of reservoir pressure coefficient and temperature gradient information for presumptive area acquires pressure coefficient parameter, analysis
Abnormal pressure situation；Reservoir temperature, geothermal gradient parameter are described, abnormal temperature situation is analyzed.Wherein it is possible to predetermined by detection
Reservoir pressure coefficient and temperature gradient in the reservoir of region, it is between 0.95-1.0 and warm in the reservoir pressure coefficient of presumptive area
Degree gradient meets the reservoir pressure coefficient and temperature that can inject the oil reservoir region of phlogisticated air in the case where 3.2-3.4 DEG C/100m
Spend gradient condition.
In the case where meeting above-mentioned full terms, which can inject phlogisticated air and carry out the displacement of reservoir oil.
Three-dimensional geological model can be established by the geologic data for the presumptive area for acquiring, analyzing, facilitate staff logical
The data model figure for crossing observation stereochemical structure analyzes presumptive area.
Fig. 2 shows the signals of the process of the oil reservoir development method provided in an embodiment of the present invention based on the phlogisticated air displacement of reservoir oil
Figure, as shown in Fig. 2, gas drive can be carried out in the case where determining that presumptive area satisfaction can inject the oil reservoir region of phlogisticated air
Mechanism and logistics organizations are studied, and lower following steps can be specifically divided:
1. carrying out gas drive mechanism study.It is tested by high pressure property and associated analog, research injection gas is to crude oil high pressure object
Property affecting laws；It is contributed by the clearly main mechanism of oil displacement of experimental study and its recovery ratio, determining influences the main of recovery ratio
Governing factor.
2. under the conditions of simulating oil reservoir, optimization method of gas injection and gas injection are joined by slim-tube test and natural core displacement test
Number determines optimal displacement mode and parameter combination, evaluates oil displacement process changing rule and oil displacement efficiency.
Specifically, according to the stratum virtual condition digital simulation phlogisticated air displacement of reservoir oil, determine injection phlogisticated air whether with
Crude oil forms mixed phase, then calculates oil displacement efficiency.
Obtain the Reservoir behavior feature of presumptive area.Formation testing pilot production Analysis on Results summarizes production feature.Carry out gas injection layer position
It is proved with basic gas injection well pattern.According to logistics organizations result of study, carry out fluid phase state fitting, emphasis is to oil property and flowing
Saturation pressure that property is affected, oil-gas ratio, density, viscosity, volume factor parameter are fitted.Pass through long cores Geological Model
Type carries out the comparison of experiment recovery ratio and model recovery ratio, corrects fitting parameter.Carry out numerical simulation study, to the items of oil well
The history matching for production of main development index.With numerical simulation technology carry out gas injection plan implementation, to force of gravity auxiliary drive with
Area drives development effectiveness；Prove different Well Pattern And Spacing well type, different injection-production ratios, different gas injection speeds, different production well prorations
Under recovery ratio；Parameter, optimal gas injection scheme preferably are adopted with evaluation, determining final crucial note by different gas injection schemes.It is right
Optimal gas injection scheme carries out index prediction, benefit evaluation.
It, can be true according to the characteristic of oil reservoir region after determining that presumptive area satisfaction can inject the oil reservoir region of phlogisticated air
Determine well net deployment mode, specifically, well is determined according to the structural property for the oil reservoir region that can inject phlogisticated air and oil bearing formation property
Wet end affixes one's name to shape, which may include square well pattern, diamond shaped pattern and triangular pattern.Number can also be passed through
Value sunykatuib analysis determines the quantity of gas injection well described in well pattern and the producing well, specifically, can be by comparing different exploitations
Mode, the different method of gas injection of comparison compare different well spacing difference well type, the different gas injection speeds of comparison, the different notes of comparison in well pattern
Gas recover the oil opportunity and and the different gas injection rates of comparison determine the quantity of gas injection well and producing well in well pattern, by configure gas injection well with
The quantity of producing well improves the recovery ratio in oil field to realize.Such as 2 mouthfuls of gas injection wells, 8 mouthfuls of producing wells.
For the safety and comprehensive analysis efficiency for improving oil reservoir exploitation, the oil reservoir that can inject phlogisticated air can be acquired in real time
Status information of the region before gas injection, in gas injection and/or after gas injection in gas injection well, for example, acquisition well head pressure, phlogisticated air
It whether there is toxic gas in gas trend, the in-position of phlogisticated air and well.Collected above-mentioned status information is sent out
It send to control centre, control centre can understand underground real-time status, according to phase according to the status information received at the first time
Information is answered to send corresponding control instruction to improve oil recovery rate.Such as shaft bottom pressure can be calculated by collected well head pressure
Power avoids the problem that accident may be occurred by directly surveying pressure presence in shaft bottom.Or when detecting toxic gas in well, Ke Yixun
Speed notifies related personnel to carry out rescue measure, to guarantee the safety of personnel and equipment.Drilling well implementation sequence and completion mode are specified,
It is proposed the requirement and measure of system protection oil reservoir in development process.It is proposed the arrangement and requirement of field test.The admission of proposition data
It is required that admission is to design and the targeted data of the project evaluation.
The present invention carries out in Dagang Oilfield Z68-12, N59 block phlogisticated air technology of reservoir sweep reservoir engineering project study
Application, for low-permeability oil deposit phlogisticated air technology of reservoir sweep reservoir engineering project study provides quickly and effectively method.
Embodiment
Step 1: carrying out fine reservoir geology research
1. carrying out substratum finely to divide and comparison.Research area includes the 2 oily groups that oil layer section is aperture leakage, according to the cycle of sedimentation
Its stratum can be divided into 3 substratums.1 substratum individual well drilling strata thickness is in 30-45m, the development of the reservoir whole district.2 substratum individual wells bore
Formation thickness 35-50m is met, reservoir is thinned by north orientation south.3 substratum individual well drilling strata thickness 35-50m, reservoir distribution is unstable,
Based on oil shale deposit.
2. carrying out tectonic interpretation and oil reservoir closing Journal of Sex Research.It is disconnected that the block aperture leakage stratum jujube 68-12 is in weathering shop
Layer downthrow block is by the monoclinal structure of fault barrier, and stratum is integrally lifted eastwards, and stratum is steeper.Dominant fault direction in plane
It is east northeast to 3 main fractures of major developmental, respectively Kongxi fault north section, Kongxi fault middle section and weathering shop tomography.
3. reservoir fine portrays description.Reservoir average pore 14.8%, mean permeability 17.9 × 10-3μm2, it is low hole
Low permeability reservoir.
4. fluid distrbution and fluid properties.The aperture leakage oil group oil property of jujube 68-12 block is relatively preferable, belongs to
Matter, high solidifying oil.Water type is NaHCO3Type.
5. reservoir pressure and temperature system.Area's pressure coefficient between 0.95-1.0, temperature gradient 3.2-3.4 DEG C/
Between 100m, normal temperature pressure system is belonged to.
6. low-permeability oil deposit gas drive seepage flow mechanism and seepage flow characteristics research.Area's reservoir has stronger hydrophily, remaining
Oily saturation degree Sor is 15.6% or so, and irreducible water saturation is higher 40.37% or so, and the average movable fluid of rock core is saturated
Degree is 59.63%.
7. Oil Reservoir Types and oil in place calculate.Area's oil reservoir is self-generation, self-reservoir lithology-structural oil pool.
8. establishing three-dimensional geological modeling.
Step 2: carrying out gas drive mechanism and logistics organizations research
1. carrying out gas drive mechanism study.Phlogisticated air displacement of reservoir oil dominant mechanism is to keep, improve reservoir pressure, change displacement side
To, improve sweep efficiency.
2. it is 6.2% that slim-tube test, which evaluates oil displacement efficiency, under current formation condition, phlogisticated air and in-place oil are injected
Mixed phase can not be formed, long core test calculates oil displacement efficiency 37.2%.
Step 3: carrying out gas-drive pool engineering research
1. being analyzed according to formation testing production material, the block oil reservoir native abilities are weaker, no self-spray ability, and oil well has certain
Natural production capacity, initial productivity can reach 8 ton/days.
The area ②Gai aperture leakage oil reservoir in the longitudinal direction integrated distribution in E1k2 21 substratum and 2 substratums, reservoir physical property and original of oil group
Oil nature is close, considers a set of series of strata exploitation.Basic well pattern uses crestal gas injection diamond shaped pattern.
3. using CMG numerical simulation software pre-processing module Win-Prop, carry out fluid phase state fitting.
4. carrying out numerical simulation study, to the Liquid output of oil well, water yield, aqueous carry out history matching.
5. carrying out gas injection plan implementation with numerical simulation technology, different development schemes, method of gas injection, flooding pattern are compared
Well spacing well type, gas injection speed, note adopt opportunity, gas injection rate optimizes, and preferably 2 notes 8 are adopted as optimal gas injection scheme, can be improved and adopt
Yield 17%.
Step 4: establishing gas drive dynamic monitoring system and the implementation requirement of reservoir engineering scheme
1. establishment gas injection before, in gas injection, stop note after monitoring scheme.
2. proposing drilling well implementation sequence and completion mode, the requirement and measure of system protection oil reservoir in development process are proposed.
3. scheme is implemented in two steps, First Year preferentially implements 5 mouthfuls of new wells, and initial stage forms 1 note 5 and adopts well pattern, according to implementation feelings
Condition implements remaining 4 mouthfuls of new wells, forms 2 notes 8 and adopts well pattern.
4. choosing 1 mouthful of well it is recommended that implementing in 5 mouthfuls of wells in advance and carrying out coring；Just determine pilot test scheme experimental period 5 years, 5 years
It is interior that reinforcing tracking is carried out to scheme.
The optional embodiment of the embodiment of the present invention is described in detail in conjunction with attached drawing above, still, the embodiment of the present invention is simultaneously
The detail being not limited in above embodiment can be to of the invention real in the range of the technology design of the embodiment of the present invention
The technical solution for applying example carries out a variety of simple variants, these simple variants belong to the protection scope of the embodiment of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the embodiment of the present invention pair
No further explanation will be given for various combinations of possible ways.
It will be appreciated by those skilled in the art that implementing the method for the above embodiments is that can pass through
Program is completed to instruct relevant hardware, which is stored in a storage medium, including some instructions are used so that single
Piece machine, chip or processor (processor) execute all or part of the steps of each embodiment the method for the application.And it is preceding
The storage medium stated includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory
The various media that can store program code such as (RAM, Random Access Memory), magnetic or disk.
In addition, any combination can also be carried out between a variety of different embodiments of the embodiment of the present invention, as long as it is not
The thought of the embodiment of the present invention is violated, equally should be considered as disclosure of that of the embodiment of the present invention.
Claims (7)
1. a kind of oil reservoir development method based on the phlogisticated air displacement of reservoir oil, which is characterized in that this method comprises:
Acquire the geologic data in presumptive area；
The collected geologic data is compared with respective threshold range, is met in the geologic data of the presumptive area
In the case where the respective threshold range, the presumptive area is judged for the oil reservoir region that can inject phlogisticated air；
Wherein, the geologic data includes: reservoir development status information, tomography distributed intelligence, average pore and average infiltration
Rate information, relative oil density type, reservoir pressure coefficient and temperature gradient information.
2. the method according to claim 1, wherein the geologic data of the presumptive area meets the corresponding threshold
The case where value range includes:
The reservoir development state of the presumptive area is that the whole district develops or reservoir development state is successively decreased to a direction；
The edge of the presumptive area is major fault；
The presumptive area is low porosity and low permeability reservoir；
It is middle matter crude oil or light crude oil according to the presumptive area relative oil density type；And
The reservoir pressure coefficient of the presumptive area is between 0.95-1.0 and temperature gradient is in 3.2-3.4 DEG C/100m.
3. the method according to claim 1, wherein this method comprises:
Well net deployment shape is determined according to the structural property of the oil reservoir region for injecting phlogisticated air and oil bearing formation property.
4. according to the method described in claim 3, it is characterized in that, this method further include:
The quantity of gas injection well described in well pattern and the producing well is determined by numerical simulation analysis；
Wherein, the numerical simulation analysis include it is following at least one: compare different development schemes, the different method of gas injection of comparison,
Compare different well spacing difference well type, the different gas injection speeds of comparison, comparison different gas-injection oil-production opportunitys and the different notes of comparison in well pattern
Tolerance.
5. the method according to claim 1, wherein this method comprises:
The oil reservoir region of phlogisticated air can be injected described in acquisition in real time before gas injection, in gas injection and/or after gas injection in gas injection well
Status information, and the status information is sent to monitoring center.
6. the method according to claim 1, wherein the status information include it is following at least one: well head pressure
Power, gas in-position, whether there is toxic gas in well at gas trend.
7. the method according to claim 1, wherein this method further include:
The crude oil that acquisition can inject the oil reservoir region of phlogisticated air carries out rock core displacement test, calculates oil displacement efficiency.
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