CN111749657A - Well pattern layered mining method and device - Google Patents
Well pattern layered mining method and device Download PDFInfo
- Publication number
- CN111749657A CN111749657A CN201910247469.8A CN201910247469A CN111749657A CN 111749657 A CN111749657 A CN 111749657A CN 201910247469 A CN201910247469 A CN 201910247469A CN 111749657 A CN111749657 A CN 111749657A
- Authority
- CN
- China
- Prior art keywords
- well
- pattern
- oil
- production
- well pattern
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/14—Obtaining from a multiple-zone well
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/20—Displacing by water
Abstract
The invention provides a well pattern layered mining method and a device, wherein the method comprises the following steps: determining the exploitation period of the well pattern according to the parameters of the oil deposit where the well pattern is located and the production parameters of an injection well and an oil extraction well in the well pattern; alternately executing the following steps in any two adjacent well pattern mining periods until the oil deposit where the well pattern is located reaches the set water content: extracting a plurality of oil extraction wells at the first oil extraction layer position, and injecting water into a water injection well at the second oil extraction layer position; and exploiting the plurality of oil production wells at the second oil production layer position, and injecting water into the water injection well at the first oil production layer position. The invention can change the liquid flow direction frequently and has high well pattern utilization rate.
Description
Technical Field
The invention relates to the technical field of oilfield development, in particular to a well pattern layered mining method and a well pattern layered mining device.
Background
When multiple oil layers are jointly produced in an oil well, due to the difference of pressure among oil layers, physical properties of the oil layers, crude oil properties and the like, the oil layers are often interfered with one another, so that part of the oil layers cannot play a due role. In order to reduce or eliminate the interlayer interference, the prior art adopts the layered exploitation, including the layered oil extraction, the layered water injection and the matching technology thereof.
Separate-layer water injection and separate-layer oil extraction are important means for improving the recovery ratio of a multilayer system oil reservoir, and are fully utilized in oil fields at home and abroad. However, the existing separate injection and separate production well pattern has the problems of fixed liquid flow direction, low well pattern utilization rate and the like, so that the oil displacement efficiency of oil reservoir water is low, and the development and adjustment potential is large.
Disclosure of Invention
The invention provides a well pattern layered mining method, which is used for realizing the layered mining of an oil production well in a well pattern, can frequently change the liquid flow direction and has high well pattern utilization rate, and comprises the following steps:
determining the exploitation period of the well pattern according to the parameters of the oil deposit where the well pattern is located and the production parameters of an injection well and an oil extraction well in the well pattern;
alternately executing the following steps in any two adjacent well pattern mining periods until the oil deposit where the well pattern is located reaches the set water content:
in the well pattern production period, producing a plurality of oil production wells at the first oil production layer, and injecting water into a water injection well at the second oil production layer;
and in the well pattern production period, producing the plurality of oil production wells at the second oil production layer position, and injecting water into the water injection well at the first oil production layer position.
The invention provides a well pattern layered mining device, which is used for realizing the layered mining of an oil well in a well pattern, can frequently change the liquid flow direction and has high well pattern utilization rate, and the device comprises:
the well pattern mining period determining module is used for determining the well pattern mining period according to the parameters of the oil deposit where the well pattern is located and the production parameters of an injection well and an oil extraction well in the well pattern;
the layered mining module is used for alternately executing the following steps in any two adjacent well pattern mining periods until the oil deposit where the well pattern is located reaches the set water content:
extracting a plurality of oil extraction wells at the first oil extraction layer position, and injecting water into a water injection well at the second oil extraction layer position;
and injecting water into the water injection well at the second oil extraction layer position, and exploiting the plurality of oil extraction wells at the first oil extraction layer position.
The embodiment of the invention also provides computer equipment which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor executes the computer program to realize the well pattern layered mining method.
Embodiments of the present invention also provide a computer-readable storage medium storing a computer program for executing the above-mentioned well pattern layered mining method.
In the embodiment of the invention, the following steps are alternately executed in any two adjacent well pattern mining periods until the oil deposit where the well pattern is located reaches the set water content: extracting a plurality of oil extraction wells at the first oil extraction layer position, and injecting water into a water injection well at the second oil extraction layer position; and exploiting the plurality of oil production wells at the second oil production layer position, and injecting water into the water injection well at the first oil production layer position. Above repeated execution process makes first oil recovery position and second oil recovery position exploit alternately frequently to can frequently change the liquid flow direction in the well net, prevent the formation of water drive advantage passageway, and then reduced the moisture content, improved the output of oil recovery well, the well net high-usage.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts. In the drawings:
FIG. 1 is a flow chart of a well pattern zonal production method in an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a co-injection and single-production mode of an oil field according to an embodiment of the present invention;
fig. 3 and 4 are the distribution of residual oil in a co-injection single-production mode at an oil production level a and an oil production level B, respectively;
fig. 5 and 6 show the distribution of the remaining oil after the oil production horizon a and the oil production horizon B adopt a co-injection single-production mode for 20 years respectively;
FIG. 7 is a pattern of a well pattern produced using a method of the present invention in an embodiment of the present invention;
FIG. 8 is a development of a well pattern at month 2 for a layer system A and a layer system B, produced using the method of the present invention in an example embodiment of the present invention;
fig. 9 and 10 show the remaining oil distribution after 20 years at the production horizon a and production horizon B, respectively, after the method of the invention;
FIG. 11 is a graph comparing the degree of oil production from the reservoir using a co-injection single-production method and the method of the present invention;
FIG. 12 is a schematic illustration of a pattern zonal production apparatus in an embodiment of the present disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
Fig. 1 is a flow chart of a well pattern zonal production method in an embodiment of the present invention, as shown in fig. 1, the method comprising:
step 101, determining a well pattern mining period according to parameters of an oil reservoir where the well pattern is located and production parameters of an injection well and an oil extraction well in the well pattern;
102, alternately executing the following steps in any two adjacent well pattern mining periods until the oil deposit where the well pattern is located reaches the set water content:
1021, exploiting a plurality of oil extraction wells at the first oil extraction level, and injecting water into a water injection well at the second oil extraction level;
and 1022, exploiting the plurality of oil production wells at the second oil production level, and injecting water into the water injection well at the first oil production level.
In the embodiment of the invention, the following steps are alternately executed in any two adjacent well pattern mining periods until the oil deposit where the well pattern is located reaches the set water content: extracting a plurality of oil extraction wells at the first oil extraction layer position, and injecting water into a water injection well at the second oil extraction layer position; and exploiting the plurality of oil production wells at the second oil production layer position, and injecting water into the water injection well at the first oil production layer position. Above repeated execution process makes first oil recovery position and second oil recovery position exploit alternately frequently to can frequently change the liquid flow direction in the well net, prevent the formation of water drive advantage passageway, and then reduced the moisture content, improved the output of oil recovery well, the well net high-usage.
In one embodiment, determining the production period of the well pattern according to the parameters of the oil reservoir in which the well pattern is located and the production parameters of the injection well and the production well in the well pattern comprises:
and performing data simulation on the oil deposit according to the parameters of the oil deposit where the well pattern is located and the production parameters of an injection well and an oil extraction well in the well pattern, and determining the exploitation period of the well pattern.
In one embodiment, the parameters of the reservoir in which the well pattern is located include one or any combination of reservoir permeability, porosity, well pattern structure and well pattern trajectory.
In one embodiment, the set moisture content is 98%.
A specific example is given below to illustrate a specific application of the pattern zonal production method of the present invention.
The current geological reserve production degree of a certain oil field is 50 percent, the water content is 90 percent, firstly, a well pattern co-injection and single-production mode is adopted, and FIG. 2 is a schematic diagram of the well pattern co-injection and single-production mode of the certain oil field in the embodiment of the invention, wherein the co-injection and single-production means that water is directly injected into a water injection well, a layered water injection mode is not adopted, and a mode that each development layer is separately produced is adopted during oil production, namely, in the well pattern in FIG. 2, in an oil production layer A, a five-point method well pattern formed by the water injection well and a side well produces, and an angle well; in the oil extraction layer B, a five-point well pattern consisting of the water injection well and the corner well produces, the side well does not produce, and the physical property of the reservoir layer of the oil extraction layer B is better than that of the oil extraction layer A.
Conceptualization processing is carried out on the oil reservoir where the well pattern is located in the combined injection and single production mode, numerical reservoir simulation is carried out on the conceptualization processed well pattern, conceptualization processing is to process an actual oil reservoir into a homogeneous oil reservoir, and finally, the residual oil distribution condition of the oil reservoir in combined injection and single production is obtained, the residual oil distribution condition of the oil reservoir in the combined injection and single production mode is respectively adopted for an oil production layer A and an oil production layer B in fig. 3 and 4, the difference of the residual oil distribution of the two oil reservoirs in the longitudinal direction can be seen, and the oil production layer A and the oil production layer B in the plane are subjected to. Fig. 5 and 6 show the distribution of the remaining oil in the oil recovery layer a and the oil recovery layer B after 20 years in a co-injection single-extraction mode, respectively, and it can be seen from fig. 5 and 6 that the remaining oil in the middle corner well position of the oil recovery layer a and the middle side well position of the oil recovery layer B is enriched, the saturation is high, the abundance of the remaining reserves in the oil recovery layer a is obviously higher than that of the oil recovery layer B, and when the ultimate water content is reached (the water content is 98%), the final oil recovery ratio of the oil reservoir is 52.7%.
The method provided by the invention is adopted for mining, the production parameters of an injection well and a production well in a well pattern are used for carrying out data simulation on the oil deposit according to the parameters of the oil deposit where the well pattern is located, the oil deposit mining period is determined to be 1 month, the parameters of the oil deposit comprise the oil deposit permeability, the porosity, the well pattern structure and the well pattern track, the set water content is 98%, and fig. 7 shows the well pattern when the method is adopted for mining in the embodiment of the invention, as shown in fig. 7, the well pattern comprises two oil extraction layers which are an oil extraction layer A and an oil extraction layer B respectively, the well pattern comprises 1 water injection well and 8 oil extraction wells, wherein the oil extraction wells are divided into 4 corner wells and 4 side wells.
In the 1 st month, 8 oil production wells of the oil production position A are exploited, and water is injected into a water injection well of the oil production position B;
and in the 2 nd month, 8 oil production wells of the oil production layer B are exploited, and water is injected into the water injection well of the oil production layer A.
And (3) alternately executing the steps by taking 1 month as a period until the oil reservoir where the well pattern is located reaches the set water content of 98%.
Fig. 7 is a schematic diagram of a well pattern of a layer system a and a layer system B at the 1 st month, fig. 8 is a development situation of the layer system a and the layer system B at the 2 nd month when the well pattern is exploited by the method of the present invention in the embodiment of the present invention, it can be seen that, at the 1 st month, 8 oil wells of an oil recovery layer a are exploited, when a water injection well of the oil recovery layer B is injected, a water flooding wave and area of the oil recovery layer a becomes large and relatively uniformly advances, and the oil recovery layer B is located at a pressure-building layer; in the 2 nd month, 8 oil recovery wells to oil recovery position B are mined, when the water injection well to oil recovery position A carries out the water injection, the not flooding district grow of oil recovery position, and oil recovery position A is in the suppress pressure layer.
Carrying out numerical reservoir simulation on the well pattern subjected to conceptualization treatment, wherein after the method is adopted, the final oil reservoir exploitation rate is 57.9% when the set water content (the water content is 98%) is reached; the residual oil distribution difference between the oil extraction layer A and the oil extraction layer B is small, and the water flooding spread degree is high; fig. 9 and 10 show the distribution of the residual oil in the oil recovery horizon a and the oil recovery horizon B after 20 years, respectively, and it can be seen that the saturation of the residual oil in the corner well in the oil recovery horizon a and the residual oil in the side well in the oil recovery horizon B are both low, the water flooding spread degree is obviously improved, and the water flooding spread is relatively uniform.
FIG. 11 is a comparison graph of the oil production degree of the oil reservoir by the co-injection single-production method and the method provided by the invention, as shown in FIG. 11, the oil production degree is improved by 5.2% compared with the existing co-injection single-production well pattern by the method provided by the invention, and the oil increasing effect is obvious.
Based on the same inventive concept, the embodiment of the invention also provides a well pattern layered production device, as described in the following embodiments. Since the principles for solving these problems are similar to those of the well pattern zonal production method, the implementation of the apparatus can be referred to the implementation of the method, and the repetition is not repeated.
Fig. 12 is a schematic view of a pattern zonal production apparatus in an embodiment of the present invention, as shown in fig. 12, the apparatus comprising:
a well pattern mining period determining module 1201, configured to determine a well pattern mining period according to parameters of an oil reservoir where the well pattern is located, and production parameters of an injection well and an oil production well in the well pattern;
the layered mining module 1202 is configured to alternately execute the following steps in any two adjacent well pattern mining periods until the oil reservoir where the well pattern is located reaches a set water content:
extracting a plurality of oil extraction wells at the first oil extraction layer position, and injecting water into a water injection well at the second oil extraction layer position;
and injecting water into the water injection well at the second oil extraction layer position, and exploiting the plurality of oil extraction wells at the first oil extraction layer position.
In an embodiment, the well pattern production period determining module 1201 is specifically configured to:
and performing data simulation on the oil deposit according to the parameters of the oil deposit where the well pattern is located and the production parameters of an injection well and an oil extraction well in the well pattern, and determining the exploitation period of the well pattern.
In one embodiment, the parameters of the reservoir in which the well pattern is located include one or any combination of reservoir permeability, porosity, well pattern structure and well pattern trajectory.
In one embodiment, the set moisture content is 98%.
In summary, in the embodiment of the present invention, the following steps are alternately executed in any two adjacent well patterns in the mining cycle until the oil reservoir where the well patterns are located reaches the set water content: extracting a plurality of oil extraction wells at the first oil extraction layer position, and injecting water into a water injection well at the second oil extraction layer position; and exploiting the plurality of oil production wells at the second oil production layer position, and injecting water into the water injection well at the first oil production layer position. Above repeated execution process makes first oil recovery position and second oil recovery position exploit alternately frequently to can frequently change the liquid flow direction in the well net, prevent the formation of water drive advantage passageway, and then reduced the moisture content, improved the output of oil recovery well, the well net high-usage.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A method of zonal production from a well pattern, comprising:
determining the exploitation period of the well pattern according to the parameters of the oil deposit where the well pattern is located and the production parameters of an injection well and an oil extraction well in the well pattern;
alternately executing the following steps in any two adjacent well pattern mining periods until the oil deposit where the well pattern is located reaches the set water content:
extracting a plurality of oil extraction wells at the first oil extraction layer position, and injecting water into a water injection well at the second oil extraction layer position;
and exploiting the plurality of oil production wells at the second oil production layer position, and injecting water into the water injection well at the first oil production layer position.
2. The pattern layered mining method of claim 1, wherein determining a pattern production period based on the parameters of the reservoir in which the pattern is located, the production parameters of the injection wells and the production wells in the pattern comprises:
and performing data simulation on the oil deposit according to the parameters of the oil deposit where the well pattern is located and the production parameters of an injection well and an oil extraction well in the well pattern, and determining the exploitation period of the well pattern.
3. The pattern layered mining method of claim 1, wherein the parameters of the reservoir in which the pattern is located include one or any combination of reservoir permeability, porosity, pattern structure and pattern trajectory.
4. The pattern zonal recovery method of claim 1, wherein the set water cut is 98%.
5. A well pattern layered production apparatus, comprising:
the well pattern mining period determining module is used for determining the well pattern mining period according to the parameters of the oil deposit where the well pattern is located and the production parameters of an injection well and an oil extraction well in the well pattern;
the layered mining module is used for alternately executing the following steps in any two adjacent well pattern mining periods until the oil deposit where the well pattern is located reaches the set water content:
extracting a plurality of oil extraction wells at the first oil extraction layer position, and injecting water into a water injection well at the second oil extraction layer position;
and injecting water into the water injection well at the second oil extraction layer position, and exploiting the plurality of oil extraction wells at the first oil extraction layer position.
6. The pattern zonal recovery apparatus of claim 5, wherein the pattern production period determination module is specifically configured to:
and performing data simulation on the oil deposit according to the parameters of the oil deposit where the well pattern is located and the production parameters of an injection well and an oil extraction well in the well pattern, and determining the exploitation period of the well pattern.
7. The pattern zonal recovery apparatus of claim 5, wherein the parameters of the reservoir in which the pattern is located include one or any combination of reservoir permeability, porosity, pattern configuration, and pattern trajectory.
8. The pattern zonal production apparatus of claim 5 wherein the set moisture content is 98%.
9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of any one of claims 1 to 4 when executing the computer program.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for executing the method of any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910247469.8A CN111749657B (en) | 2019-03-29 | 2019-03-29 | Well pattern layered mining method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910247469.8A CN111749657B (en) | 2019-03-29 | 2019-03-29 | Well pattern layered mining method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111749657A true CN111749657A (en) | 2020-10-09 |
| CN111749657B CN111749657B (en) | 2022-06-03 |
Family
ID=72671688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910247469.8A Active CN111749657B (en) | 2019-03-29 | 2019-03-29 | Well pattern layered mining method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111749657B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4685515A (en) * | 1986-03-03 | 1987-08-11 | Texaco Inc. | Modified 7 spot patterns of horizontal and vertical wells for improving oil recovery efficiency |
| CN102839958A (en) * | 2012-09-04 | 2012-12-26 | 中国石油天然气股份有限公司 | Longitudinally superposed developing three-strata oil reservoir well pattern and deployment method thereof |
| RU2471971C1 (en) * | 2011-09-01 | 2013-01-10 | Открытое акционерное общество "Татнефть" имени В.Д. Шашина | Development method of non-homogeneous oil deposit |
| CN103790558A (en) * | 2012-11-02 | 2014-05-14 | 中国石油化工股份有限公司 | Layered water injection production linkage coupling method |
| CN204371295U (en) * | 2014-12-10 | 2015-06-03 | 中国石油天然气股份有限公司 | Multilayer sandstone oil reservoir well pattern structure |
| CN205225215U (en) * | 2015-11-25 | 2016-05-11 | 中国石油天然气股份有限公司 | A mining devices for two sets of oil reservoir slicing mining |
-
2019
- 2019-03-29 CN CN201910247469.8A patent/CN111749657B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4685515A (en) * | 1986-03-03 | 1987-08-11 | Texaco Inc. | Modified 7 spot patterns of horizontal and vertical wells for improving oil recovery efficiency |
| RU2471971C1 (en) * | 2011-09-01 | 2013-01-10 | Открытое акционерное общество "Татнефть" имени В.Д. Шашина | Development method of non-homogeneous oil deposit |
| CN102839958A (en) * | 2012-09-04 | 2012-12-26 | 中国石油天然气股份有限公司 | Longitudinally superposed developing three-strata oil reservoir well pattern and deployment method thereof |
| CN103790558A (en) * | 2012-11-02 | 2014-05-14 | 中国石油化工股份有限公司 | Layered water injection production linkage coupling method |
| CN204371295U (en) * | 2014-12-10 | 2015-06-03 | 中国石油天然气股份有限公司 | Multilayer sandstone oil reservoir well pattern structure |
| CN205225215U (en) * | 2015-11-25 | 2016-05-11 | 中国石油天然气股份有限公司 | A mining devices for two sets of oil reservoir slicing mining |
Non-Patent Citations (1)
| Title |
|---|
| 姜振海: "特高含水期分层段周期注采技术研究与实践认识", 《中国工程科学》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111749657B (en) | 2022-06-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103422849B (en) | Waterflooding extraction old filed well pattern reconstruction method and device | |
| CN109209312B (en) | Resource development method suitable for polymer flooding | |
| CN105822271A (en) | Adjustment method of variable flow line vector of thick-stratum oil deposit | |
| CN108241170B (en) | Method and device for fitting carved volume and dynamic reserve of fractured-vuggy carbonate reservoir | |
| CN112443308B (en) | Sandstone uranium mine ground leaching production well network setting method and device and terminal equipment | |
| CN107975358B (en) | Oil reservoir exploitation method and device | |
| CN111322056A (en) | Continental facies shale gas development well type determination method and device | |
| CN109281642B (en) | Method for improving multi-layer oil reservoir development effect after polymer flooding | |
| CN104373097A (en) | Method for increasing middle and deep layer super heavy oil deposit recovery ratio through combination of SAGD and steam flooding | |
| CN111749657B (en) | Well pattern layered mining method and device | |
| CN105201491B (en) | A kind of method and device of determining water logging intensity | |
| Botechia et al. | A model-based production strategy selection considering polymer flooding in heavy oil field development | |
| CN107448179A (en) | A kind of CO2- water alternately injects the method and its application of purging | |
| CN111749671B (en) | Method and device for injection-production between development layers of well pattern | |
| RU2614834C1 (en) | Operation method of oil pool by using nonstationary waterflood | |
| CN105257265A (en) | Method for optimizing CO2 injection rate to increase recovery ratio through CO2 displacement of reservoir oil | |
| CN111350485B (en) | Well pattern adjusting method and device | |
| CN111749660B (en) | Well pattern injection and production method and device | |
| CN104675372B (en) | A kind of method for injecting produced quantity distribution for polymer flooding | |
| CN107869334B (en) | Layer system recombination and exploitation method of multi-layer sandstone oil reservoir in middle and later stages of water injection development | |
| CN113486537B (en) | Well spacing design method, device and equipment based on gas-water alternating oil displacement | |
| CN106869880B (en) | A kind of sandstone reservoir acidization tool | |
| CN110939425A (en) | Alternate mining method and device for horizontal well pattern by reverse-looking seven-point method | |
| CN111852459B (en) | Shale gas reservoir structure modeling method and device | |
| CN111119832A (en) | Unstable alternate mining method and device for facing horizontal well pattern |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |