CN111425171A - Water-flooding sandstone reservoir double-high-period two-three combined perforation optimization method - Google Patents
Water-flooding sandstone reservoir double-high-period two-three combined perforation optimization method Download PDFInfo
- Publication number
- CN111425171A CN111425171A CN201910019399.0A CN201910019399A CN111425171A CN 111425171 A CN111425171 A CN 111425171A CN 201910019399 A CN201910019399 A CN 201910019399A CN 111425171 A CN111425171 A CN 111425171A
- Authority
- CN
- China
- Prior art keywords
- layer
- potential
- perforation
- interlayer
- layers
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000005457 optimization Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000009826 distribution Methods 0.000 claims abstract description 3
- 239000010410 layer Substances 0.000 claims description 98
- 239000011229 interlayer Substances 0.000 claims description 58
- 238000011161 development Methods 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 claims description 18
- 230000000704 physical effect Effects 0.000 claims description 7
- 230000035699 permeability Effects 0.000 claims description 4
- 238000011156 evaluation Methods 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims description 2
- 239000002349 well water Substances 0.000 claims description 2
- 238000011084 recovery Methods 0.000 abstract description 15
- 238000009412 basement excavation Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000003334 potential effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 50
- 230000000694 effects Effects 0.000 description 12
- 239000000126 substance Substances 0.000 description 9
- 239000002356 single layer Substances 0.000 description 4
- 239000010779 crude oil Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- AMRUKLMZDPPJNU-IOLLQWDPSA-N (2-hydroxy-3-octadecanoyloxypropyl) (5e,8e,11e,14e)-icosa-5,8,11,14-tetraenoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)COC(=O)CCC\C=C\C\C=C\C\C=C\C\C=C\CCCCC AMRUKLMZDPPJNU-IOLLQWDPSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- 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
- E21B43/11—Perforators; Permeators
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention provides a double-high-period two-three combined perforation optimization method for a water-drive sandstone reservoir. The method comprises the following steps: and classifying the potential layers finely according to the distribution rule of the residual oil in the double high periods of the water-drive sandstone reservoir, and specifically making different perforation schemes according to different geological features and residual oil enrichment characteristics of different types of potential layers. The perforation optimization method is simple and easy to operate, the water drive excavation potential effect can be improved, the tertiary oil recovery cost is effectively reduced, and the benefit maximization is realized.
Description
Technical Field
The invention relates to the field of oil reservoir development, in particular to a double-high-period two-three combined perforation optimization method for a water-drive sandstone oil reservoir.
Background
Most of domestic old water-flooding oil fields enter a double-high development period with high water content, ultra-high water content and high extraction degree, newly increased water-flooding capacity is reduced year by year, water-flooding yield replacement capability is poor, and a residual oil enrichment section still exists through core analysis. Gradually exploring a new development mode, and transiting from secondary oil recovery to tertiary oil recovery (chemical flooding, gas flooding, top gas injection stable gravity flooding, fireflood, SADG, a new displacement system and the like). The 'two-three combined' development mode fully utilizes the encrypted well pattern of tertiary oil recovery, and the method is based on the fine excavation and diving of the current water drive mode, strengthens the water drive secondary oil recovery, and then shifts to the tertiary oil recovery at a proper time, so that the secondary development and the tertiary oil recovery are linked optimally, the cost can be effectively reduced, and the maximization of the overall economic benefit is realized. The 'two-three combination' expands the capacity construction space of the old oil field, is an important stage of transition from secondary oil recovery to tertiary oil recovery, can effectively improve the development effect, improve the recovery ratio and reduce the implementation risk of the tertiary oil recovery.
A 'two-three combination' test project is developed in a plurality of domestic oil fields, and each oil field adopts a different 'two-three combination' mode according to the geological characteristics of a block, so that a certain effect is achieved, and the mode is proved to have certain feasibility. The 'two-three combination' mode adopted by the east regions of the Tuo 11 south Cheng oil field, the Mongolian oil field, the Shengtu oil field and the Chengdong oil field is to use the old well network, firstly carry out multiple rounds of profile control on the water injection well, and then inject a small amount of chemical oil displacement agent to carry out tertiary oil recovery; in a two-zone south of a development zone and a north zone of a chan di, a two-three combination mode utilizing a new well pattern is adopted, a set of well pattern is respectively adopted for II and III oil layers, and polymer flooding is developed after water flooding excavation; through the implementation of the 'two-three combination' technology, the development effect of each block is improved, and the method is reflected in the aspects of crude oil yield increase, comprehensive water content reduction, recovery efficiency improvement and the like. Since the chemical flooding deployment design of the Liaohe oil field J16 was developed in 2008, the number of wells in the target layer and the lower layer of the two-three combined submersible chemical flooding is 110, and the cumulative yield-increasing crude oil is increased by 26.4 ten thousand tons, however, the production effect difference of each well is large, the daily produced oil is more than 20t and does not contain water, and the daily produced oil is also high in water content, namely, the daily produced oil is more than 90%, so in order to improve the two-three combined water flooding submersible effect, the perforation needs to be optimized for each well to ensure the effect of each well, the potential is fully released before the flooding, and the reserve utilization degree and the development benefit are improved.
The flooding degree is heavier in the middle and later stages of water drive development, and under the condition of 'finding oil in water', the submerged well is difficult to ensure the production effect if adopting general perforation, so selective subdivision and optimized perforation are required, but the content is not discussed in detail.
Disclosure of Invention
The invention aims to provide a double-high-period two-three combined perforation optimization method for a water-drive sandstone reservoir
In order to achieve the aim, the invention provides a double-high-period two-three combined perforation optimization method for a water-drive sandstone reservoir, wherein the method comprises the following steps: and classifying the potential layers finely according to the distribution rule of the residual oil in the double high periods of the water-drive sandstone reservoir, and specifically making different perforation schemes according to different geological features and residual oil enrichment characteristics of different types of potential layers.
The two-three combination means that a tertiary oil recovery well pattern is utilized to carry out secondary water drive excavation.
According to some embodiments of the invention, the method comprises the step of subdividing potential layers into four categories according to reservoir thickness and interbed development: thick layers with argillaceous interlayers, thick layers with physical interlayers, thick layers without interlayers, and thin layers.
According to some embodiments of the present invention, the thick layer is a single-layer or continuous oil layer with a thickness of 6m or more, and the thin layer is a single-layer or continuous oil layer with a thickness of less than 3 m.
According to some specific embodiments of the invention, the method further comprises:
(1) identifying a potential layer of the thick layer: establishing a relation chart of the resistance value, the time difference and the oil production amount, and determining the resistance and the time difference limit of the potential layer;
(2) identifying the argillaceous interlayer: establishing a relation chart of micro potential/micro gradient, 0.45m gradient, deep lateral resistivity return value and oil content, and identifying the argillaceous interlayer through the return value;
(3) physical interlayer identification: establishing an electrical chart of deep lateral resistivity, micro-potential return value and oil-containing property, and identifying the physical interlayer through the return value;
(4) thin-layer potential layer identification: and establishing a relation between the potential layer resistance and the same-well water layer resistance, and determining a lower limit value of the potential layer resistance.
It is to be understood that "/" in "micro potential/micro gradient" according to the present invention means "or". I.e. "micro potential or micro gradient"
According to some embodiments of the present invention, the thin top and bottom spacer layers are physically dense and lithologically pure.
According to some embodiments of the invention, the thin lithology is mudstone or argillaceous siltstone.
According to some embodiments of the invention, the perforation scheme comprises:
(1) the thick layer has a argillaceous interlayer: deeply researching the thickness, physical property and development position of the interlayer, and preferentially jetting an upper latent layer of the interlayer;
(2) thick layer physical interlayer: during perforation, a certain perforation avoiding thickness is reserved to inhibit the water content from rising;
(3) thick layer without interlayer: preferentially perforating at the top, and increasing the perforation avoiding thickness;
(4) thin layer: and carrying out multilayer centralized and clustered perforation.
According to some embodiments of the invention, the perforation scheme comprises:
(1) the thick layer has a argillaceous interlayer: when perforating, the packing function of the interlayer is fully utilized, the water content is controlled to rise, the thickness, physical property and development position of the interlayer are researched, and the potential layer on the upper part of the interlayer is selectively jetted;
(2) thick layer physical interlayer: the physical interlayer has a certain sealing function, and perforation is carried out on the physical interlayer, so that the perforation avoiding thickness can be properly reduced, and the distance between the bottom boundary of the perforation and the bottom boundary of the potential layer is more than 1 m;
(3) thick layer without interlayer: under the influence of gravity differentiation, residual oil on the top is formed, selective perforation is carried out on the top, and the distance between the bottom boundary of the perforation and the bottom boundary of the potential layer is more than 3 m;
(4) thin layer: the potential layer is less than 3m in thickness, the electrical characteristic shows that the oil layer is a potential layer more than 3 times of the resistivity of the water layer of the well, the top and bottom spacing layers of the thin layer are generally compact in physical property and relatively pure in lithology and are mostly mudstone or argillaceous siltstone, and the result of a digifax shows that the residual oil is relatively enriched below the spacing layer.
According to some embodiments of the invention, the clustered perforations comprise classified perforations according to evaluation criteria, and only one type of perforation is allowed to be fired at a time.
According to some embodiments of the invention, the clustering perforation comprises classifying perforation according to permeability level difference, interlayer saturation difference, interlayer pressure coefficient difference and combined layer number, and only one type of perforation is allowed to be opened at one time.
According to some embodiments of the present invention, the multi-layer concentration is to shoot several layers with similar physical properties at the same time, put them into production in a concentrated manner, and optimize and select layers, so as to avoid causing inter-layer contradiction.
According to some embodiments of the invention, the thickness of the evasion layer in step (2) is greater than 1 m.
According to some embodiments of the invention, the thickness of the evasion layer in step (3) is increased to more than 3 m.
According to some embodiments of the invention, the perforating is dominated by single production.
According to some embodiments of the invention, deep penetration perforation and low fluid supply scale fracturing modification can be used according to reservoir pollution and physical conditions of a new well.
According to some embodiments of the invention, the fracturing may be performed in a separate development layer, such as when the production process is starved and a good barrier exists to adjacent layers.
In conclusion, the invention provides a double-high-period two-three combined perforation optimization method for a water-drive sandstone reservoir. The method of the invention has the following advantages:
the technical scheme provided by the invention is suitable for water drive fine excavation and potential of a water drive sandstone dual-high-period oil field in combination of two and three, and the potential layer is subdivided into four types, and the individual optimization perforation is carried out aiming at different characteristics of each type, so that the effect of each well is ensured, and the effective use of the residual oil is realized.
Drawings
FIG. 1 is a flowchart of example 1;
FIG. 2 is a schematic diagram of a chemical flooding pattern potential excavation site of example 1;
fig. 3 to 5 are schematic diagrams of electrical charts for identifying the argillaceous interlayer in example 1.
Detailed Description
The following detailed description is provided for the purpose of illustrating the embodiments and the advantageous effects thereof, and is not intended to limit the scope of the present disclosure.
Example 1
The embodiment provides a double-high-period two-three combined perforation optimization method for a water-drive sandstone reservoir, which comprises the following specific implementation steps (as shown in fig. 1):
the newly deployed chemical flooding pattern is excavated to submerge its chemical flooding destination and below horizons (see fig. 2), wherein,
(1) subdividing a potential layer: potential layers are subdivided into four categories according to monolayer thickness, with or without interlayers: the thick layer has a argillaceous interlayer and is of type I; the thick layer has a physical interlayer, and is type II; the thick layer has no interlayer and is of type III; the thin layer is IV type;
(2) for the class I potential layer, the key lies in the accurate identification of the interlayer, an electric chart (such as a figure 3, a figure 4 and a figure 5) of micro potential, micro gradient, 0.45m gradient, deep lateral resistivity return value and oil-containing property of a researched area is established, the interlayer is identified by utilizing the return value, and on the basis, the interlayer is preferentially perforated on the interlayer by utilizing the water-avoiding effect of the interlayer; the identification standard of the argillaceous interlayer is that the electrical characteristics are represented by that the return of micro-potential (or micro-gradient) is more than 40%, the return of 0.45m gradient is more than 25%, the return of deep lateral resistivity is more than 40%, and the thickness, physical property and development position of the interlayer are researched during perforation so as to selectively jet out the potential layer on the upper part of the interlayer. And the No. 48 small layer of the X-A225 well is positioned at the position where the microelectrode logging curve returns, and residual oil is enriched. After the well is put on the top of the thick layer, the daily oil production reaches 25t/d in the initial stage.
(3) For class ii potential layers, the physical interlayer recognition criteria is that the electrical characteristics are manifested as a deep lateral resistivity return of greater than 20%. And perforating on the physical interlayer, wherein the distance between the bottom boundary of the perforation and the bottom boundary of the potential layer is more than 1 m.
(4) For the class III potential layer, actual production shows that the production effect is influenced by the shielding thickness, so that shielding thickness research is carried out by using numerical simulation software, and the result shows that the shielding thickness needs to be more than 3m to obtain a better effect; the X2 well microelectrode logging curve does not return, which shows that no obvious interlayer exists in the thick layer, but the top is still a high resistance layer, the resistance is 120 omega.m, the production is carried out by perforating according to the avoiding thickness of 3m, and the daily oil production is 20t/d at the initial stage.
(5) For the IV-class potential layer, the defects are that the layer is thin, the single-layer liquid amount is low, and in order to ensure the yield, clustering perforation is carried out according to indexes such as permeability level difference, interlayer saturation difference, interlayer pressure coefficient difference and the like. In order to reduce the difference between the layers of the commingled production, a limit standard is given through numerical simulation and production practice: the permeability grade difference is less than 5, the interlayer saturation difference is less than 0.2, the interlayer pressure coefficient difference is less than 0.2, and the number of combined layers is less than 8. And performing perforation according to classification, wherein only one type is allowed to be shot at one time, when the perforation reaches an ultrahigh water-cut period, the type is blocked, the next type is shot again, and the like.
The X oil field utilizes a chemical flooding new well network 101 to carry out 'two-three combination' excavation and submergence for 120 times in an accumulated mode, the average daily oil production of a single well is 8.2 tons in the initial stage, the built capacity is 24.6 ten thousand tons, the accumulated oil production is 33.8 ten thousand tons at present, the average accumulated oil production of the single well reaches 3000 tons, and the early-stage drilling investment and the ground investment cost are effectively recovered.
The technology can slow down the pressure of high efficiency and low benefit of chemical flooding cost and improve the water flooding recovery ratio. The technique also provides borrowable data for blocks of the secondary development and reconstruction well patterns of old oil fields.
Claims (10)
1. A double-high-period two-three combined perforation optimization method for a water-flooding sandstone reservoir is disclosed, wherein the method comprises the following steps: and classifying the potential layers finely according to the distribution rule of the residual oil in the double high periods of the water-drive sandstone reservoir, and specifically making different perforation schemes according to different geological features and residual oil enrichment characteristics of different types of potential layers.
2. The method of claim 1, wherein the method comprises subdividing potential layers into four categories according to reservoir thickness and interbed development: thick layers with argillaceous interlayers, thick layers with physical interlayers, thick layers without interlayers, and thin layers.
3. The method according to claim 2, wherein the thick layer is a single or continuous layer of oil having a thickness of 6m or more and the thin layer is a single or continuous layer of oil having a thickness of less than 3 m.
4. The method of claim 2 or 3, wherein the method further comprises:
(1) identifying a potential layer of the thick layer: establishing a relation chart of the resistance value, the time difference and the oil production amount, and determining the resistance and the time difference limit of the potential layer;
(2) identifying the argillaceous interlayer: establishing a relation chart of micro potential/micro gradient, 0.45m gradient, deep lateral resistivity return value and oil content, and identifying the argillaceous interlayer through the return value;
(3) physical interlayer identification: establishing an electrical chart of deep lateral resistivity, micro-potential return value and oil-containing property, and identifying the physical interlayer through the return value;
(4) thin-layer potential layer identification: and establishing a relation between the potential layer resistance and the same-well water layer resistance, and determining a lower limit value of the potential layer resistance.
5. A method according to claim 2 or 3, wherein the perforation scheme comprises:
(1) the thick layer has a argillaceous interlayer: deeply researching the thickness, physical property and development position of the interlayer, and preferentially jetting an upper latent layer of the interlayer;
(2) thick layer physical interlayer: during perforation, a certain perforation avoiding thickness is reserved to inhibit the water content from rising;
(3) thick layer without interlayer: preferentially perforating at the top, and increasing the perforation avoiding thickness;
(4) thin layer: and carrying out multilayer centralized and clustered perforation.
6. The method of claim 5, wherein the clustered perforations comprise categorized perforations by evaluation index, with only one type of perforation allowed to fire.
7. The method of claim 5, wherein the clustered perforations comprise classified perforations by permeability level difference, inter-layer saturation difference, inter-layer pressure coefficient difference, number of combined layers, and only one type is allowed to fire at a time.
8. The method of claim 5, wherein the multi-layer concentration is to shoot several layers with similar physical properties at the same time, put them into production in a concentrated way, and optimize and select the layers, so as to avoid causing the inter-layer contradiction.
9. The method of claim 5, wherein the evasive thickness of step (2) is greater than 1 m.
10. The method of claim 5, wherein the evasion thickness of step (3) is increased to greater than 3 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910019399.0A CN111425171A (en) | 2019-01-09 | 2019-01-09 | Water-flooding sandstone reservoir double-high-period two-three combined perforation optimization method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910019399.0A CN111425171A (en) | 2019-01-09 | 2019-01-09 | Water-flooding sandstone reservoir double-high-period two-three combined perforation optimization method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111425171A true CN111425171A (en) | 2020-07-17 |
Family
ID=71545647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910019399.0A Pending CN111425171A (en) | 2019-01-09 | 2019-01-09 | Water-flooding sandstone reservoir double-high-period two-three combined perforation optimization method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111425171A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718531A (en) * | 2021-01-06 | 2022-07-08 | 中国石油天然气股份有限公司 | Perforation optimization method and device for improving accumulation-surface combination flooding effect of thick-layer sandstone reservoir |
| CN115217452A (en) * | 2021-04-20 | 2022-10-21 | 中国石油天然气股份有限公司 | Interbed steam flooding perforation method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2211329C1 (en) * | 2002-03-18 | 2003-08-27 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Method of determination of well potential production rate |
| CN103046910A (en) * | 2013-01-10 | 2013-04-17 | 中国石油天然气股份有限公司 | Oil deposit water-driving exploiting method of ultra-high water-containing period |
-
2019
- 2019-01-09 CN CN201910019399.0A patent/CN111425171A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2211329C1 (en) * | 2002-03-18 | 2003-08-27 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Method of determination of well potential production rate |
| CN103046910A (en) * | 2013-01-10 | 2013-04-17 | 中国石油天然气股份有限公司 | Oil deposit water-driving exploiting method of ultra-high water-containing period |
Non-Patent Citations (1)
| Title |
|---|
| 安伟煜: "大庆油田"二三结合"挖潜技术的实践与认识", 《中国石油和化工标准与质量》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718531A (en) * | 2021-01-06 | 2022-07-08 | 中国石油天然气股份有限公司 | Perforation optimization method and device for improving accumulation-surface combination flooding effect of thick-layer sandstone reservoir |
| CN115217452A (en) * | 2021-04-20 | 2022-10-21 | 中国石油天然气股份有限公司 | Interbed steam flooding perforation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Yakupov et al. | Optimization of reserve production from water oil zones of D3ps horizon of Shkapovsky oil field by means of horizontal wells | |
| RU2339801C2 (en) | Method for development of multi-horizon non-uniform oil fields by means of branched horizontal wells | |
| RU2439299C1 (en) | Method of oil deposit development | |
| CN106014372B (en) | A kind of horizontal well well-arranging procedure based on sand body structure | |
| RU2678337C1 (en) | Multi-layer deposits with hard-to-recover oil reserves development method by the compacting grid method | |
| CN111425171A (en) | Water-flooding sandstone reservoir double-high-period two-three combined perforation optimization method | |
| CN115538996A (en) | CO (carbon monoxide) 2 Three-stage visual classification evaluation method for oil displacement and geological storage | |
| Ikpeka et al. | Application of machine learning models in predicting initial gas production rate from tight gas reservoirs | |
| Liu et al. | The Control Theory and Application for Well Pattern Optimization of Heterogeneous Sandstone Reservoirs | |
| CN103628848B (en) | Multidirectional interlayer displacement in flooding oil production method and system | |
| Barbe et al. | Quantitative analysis of infill performance: Robertson Clearfork Unit | |
| CN111749688A (en) | Method for predicting development position and direction of dominant seepage channel | |
| Peterson et al. | Conducting SAGD in shoreface oil sands with associated basal water | |
| RU2290501C1 (en) | Method for extracting an oil pool | |
| RU2442882C1 (en) | Method for edge oil rim development | |
| CN111322054B (en) | Three-three combined excavation and potential optimization mining method for sandstone oil reservoir in chemical flooding stage | |
| Levanov et al. | Evolution of approaches to oil rims development in terrigenous formations of Eastern Siberia | |
| Zhang et al. | Exploration and Practice of Integrated Re-fracturing Technology for Horizontal Wells in Ultra-low Permeability Reservoirs in Huaqing Oilfield | |
| Muslimov | Solving the Fundamental Problems of the Russian Oil Industry is the Basis for a Large-Scale Transition to Innovative Development | |
| Ryder | Characteristics of discrete and basin-centered parts of the Lower Silurian regional oil and gas accumulation, Appalachian basin: Preliminary results from a data set of 25 oil and gas fields | |
| RU2513469C1 (en) | Oil deposit development method | |
| Montgomery et al. | Pennsylvanian carbonate buildups, Paradox basin: increasing reserves in heterogeneous, shallow-shelf reservoirs | |
| RU2295634C2 (en) | Development method for gas-and-oil field characterized by highly-viscous oil | |
| Denney | Scaling up a 900-million-cell static model to a dynamic model | |
| Yelubayev | Implementation of a pilot sidetrack technology program |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200717 |
|
| RJ01 | Rejection of invention patent application after publication |