CN107025346A - Horizontal well integral intelligent well completion design method - Google Patents
Horizontal well integral intelligent well completion design method Download PDFInfo
- Publication number
- CN107025346A CN107025346A CN201710229050.0A CN201710229050A CN107025346A CN 107025346 A CN107025346 A CN 107025346A CN 201710229050 A CN201710229050 A CN 201710229050A CN 107025346 A CN107025346 A CN 107025346A
- Authority
- CN
- China
- Prior art keywords
- well
- packer
- valve
- horizontal well
- phased
- 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
- 238000013461 design Methods 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 71
- 230000000694 effects Effects 0.000 claims abstract description 18
- 238000005457 optimization Methods 0.000 claims abstract description 16
- 239000012530 fluid Substances 0.000 claims abstract description 14
- 239000004744 fabric Substances 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 238000011156 evaluation Methods 0.000 claims abstract description 8
- 230000017488 activation-induced cell death of T cell Effects 0.000 claims abstract description 6
- 230000036642 wellbeing Effects 0.000 claims abstract description 6
- 230000009467 reduction Effects 0.000 claims abstract description 5
- 239000003921 oil Substances 0.000 claims description 17
- 238000009826 distribution Methods 0.000 claims description 14
- 230000035699 permeability Effects 0.000 claims description 14
- 239000004576 sand Substances 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 5
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 4
- 239000010779 crude oil Substances 0.000 claims description 4
- 238000009533 lab test Methods 0.000 claims description 4
- 239000011435 rock Substances 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- 230000000638 stimulation Effects 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 7
- 238000011161 development Methods 0.000 description 3
- 235000013399 edible fruits Nutrition 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 241000372132 Hydrometridae Species 0.000 description 1
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/02—Agriculture; Fishing; Forestry; Mining
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Mining & Mineral Resources (AREA)
- Health & Medical Sciences (AREA)
- Geometry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Animal Husbandry (AREA)
- Marine Sciences & Fisheries (AREA)
- Evolutionary Computation (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Economics (AREA)
- General Health & Medical Sciences (AREA)
- Human Resources & Organizations (AREA)
- Marketing (AREA)
- Primary Health Care (AREA)
- Strategic Management (AREA)
- Tourism & Hospitality (AREA)
- General Business, Economics & Management (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses horizontal well integral intelligent well completion design method, it comprises the following steps：1) basic data prepares；2) center tube structure optimization design is carried out；3) determine whether the tripping in position of tripping in packer (8) and packer (8) and number is installed；4) single phased valve stream (6) amount design is carried out according to fluid properties and with yield；5) phased valve (6) cloth valve mode optimization is carried out；6) by the relation between phased valve (6) number and flowing bottomhole pressure (FBHP) and moisture content reduction amount, it is determined that optimal phased valve (6) number；7) dewatering effect, effect of increasing production and economic well-being of workers and staff evaluation are carried out to final control water scheme.The beneficial effects of the invention are as follows：Control water completion optimization design can be carried out to phased valve, control water conceptual design can be carried out to ICD and AICD again, can design method controls water completion for horizontal well in advance and later stage control water completion is applicable, and can carry out controlling water conceptual design for enter the horizontal well of packer.
Description
Technical field
The present invention relates to a kind of water control method technical field for oil exploitation, particularly a kind of integrated intelligence of horizontal well
Water design method can be controlled.
Background technology
With extensive use of the horizontal well in each elephant, bottom water coning is faced with while oil recovery rate is improved
Oil well productivity declines rapidly after the problem of even breaking through, bottom-water breakthrough, has a strong impact on the development effectiveness of horizontal well.Although current state
The inside and outside control water conservancy project tool for having had been developed for various high-quality, mainly includes：Nozzle-type ICD, channel-type ICD, hybrid ICD, RCP
ICD is only applicable to horizontal well completion in advance in valve, AICD, phased valve etc., these control water conservancy project tools, i.e. ICD classes control water conservancy project tool can only
Postpone bottom-water breakthrough, and for the horizontal well control water DeGrain after bottom-water breakthrough, and develop what is stood up on the basis of ICD
Range of viscosities applicable AICD is very narrow, and RCP valves contain moving component, have only combined the phased valve of all advantages of each valve of the above both
The horizontal well (horizontal well controls water in advance) do not broken through available for bottom water, the horizontal well (level that can be used for bottom water to break through again
The well later stage controls water), and without moving component.The valve is mainly automatic point realized by fluid properties and flow path to profit
Mutually shunt, limit the output of water.Although phased valve can control bottom water coning well, oil recovery factor is improved, until existing
Untill, the design method of neither one system designs to carry out control water completion program.Therefore, complete set is formulated to phased valve
Design method be very necessary, this will strengthen the application effect of phased valve conscientiously, and greatly improve horizontal wells effect
And oil field whole development benefit.
The content of the invention
It is an object of the invention to the shortcoming for overcoming prior art, there is provided a kind of horizontal well one suitable for phased valve completion
Body intelligent water-controlled design method.
The technical scheme is that：A kind of horizontal well integral intelligent control water design method, comprises the following steps：
1) underlying parameter prepares：Including：Reservoir physical parameter (oil reservoir size, reservoir permeability, reservoir porosity, reservoir
Pressure etc.), reservoir fluid parameter (oil, the physical data under high pressure of water, permeability saturation curve etc.), horizontal wellbore parameter (level
Wellbore trajectory, horizontal well length, mineshaft diameter, completion tubular column internal-and external diameter, pit shaft roughness etc.) and horizontal well match somebody with somebody yield,
If actual oil reservoir is loose sand reservoir, the granularmetric composition distribution curve and integral distribution curve of reservoir rock are also needed to；
2) center tube structure optimization design：Track, permeability are met according to the brill of reservoir characteristic parameter, fluid parameter, horizontal well
Distribution, the production profile gone into operation using the full well of central pipe of horizontal well control water design tool software prediction, predicts water ridge shape, it is determined that
The blind sieve structure of central tube；
3) tripping in packer is determined whether：Sand is not filled up for the clearly new well of Permeability Distribution and mineshaft annulus
Old well recommends tripping in packer, and fills up sand for the old well and annular space for carrying out the well stimulations such as staged fracturing or acidifying
Old well then recommend not tripping in packer；
4) packer installs number and position is determined：For the horizontal well of not tripping in packer, packer tripping in number is
Zero；Horizontal well for needing tripping in packer, in the pre- hole pipe of center tubes and blind pipe junction tripping in packer, if central tube
To shaft bottom under not, Ze centers pipe end tripping in packer, conversely, center pipe end not tripping in packer；
5) single phased valve flow design：Phased valve control water-carrying capacity is carried out according to individual well fluid properties and proration of single well amount to set
Meter, including software optimization and laboratory experiment test, determine the best effort flow of the phased valve of target well；
6) phased valve cloth valve mode optimization：Using the design discharge in step 5, work is designed by central pipe of horizontal well control water
Have software and carry out phased valve cloth valve mode optimization, select optimal phased valve+center tube structure；
7) phased valve number is determined：The obtained phased valve of individual well is calculated according to central pipe of horizontal well control water design tool software
Relation between number and flowing bottomhole pressure (FBHP) and moisture content reduction amount, it is determined that optimal phased valve number；
8) effect assessment：Precipitation effect is carried out to final control water scheme using central pipe of horizontal well control water design tool software
Fruit and effect of increasing production evaluation；
9) economic well-being of workers and staff evaluation：Newest prediction according to authoritative institution to crude oil price, carries out phased valve completion economy and receives
Benefit is evaluated.
The end of described central tube is provided with plug, and the outside of central tube is also set with screen casing, and the end of screen casing is installed
In on the change buckle joint on pit shaft horizontal segment top.
Described phased valve is arranged on center tubes tube wall.
Described phased valve is a kind of intelligent water-controlled instrument of AICD types.
The present invention has advantages below：The present invention can be to intelligent water-controlled instrument --- and phased valve carries out the completion optimization of control water
Nozzle-type ICD, channel-type ICD, hybrid ICD, RCP valve, other AICD etc. can be carried out control water conceptual design, energy by design again
Enough actual effects evaluated and recognize influence and control water measure of these control water conservancy project tools to horizontal productivity, are that horizontal well control water is complete
The selection of well instrument provides foundation, so as to greatly improve horizontal wells effect and oil field whole development benefit.
The present invention can be used for horizontal well, and intelligent water-controlled completion program is designed in advance, can produce a period of time in horizontal well again
After moisture content significantly rises, later stage intelligent water-controlled conceptual design is carried out, and for energy tripping in packer and be unable to tripping in packing
The horizontal well of two kinds of situations of device can carry out controlling water conceptual design.
Brief description of the drawings
Fig. 1 is tubular column structure schematic diagram of the invention；
Fig. 2 is another tubular column structure schematic diagram of the invention.
In figure, 1- pit shafts, the pre- hole pipes of 2-, 3- blind pipes, 4- screen casings, 5- becomes buckle joint, the phased valves of 6-, 7- plugs, 8- packings
Device.
Specific implementation method
With reference to embodiment and accompanying drawing, the present invention will be further described, protection scope of the present invention be not limited to
It is lower described：
Embodiment 1：
The present embodiment is to not installing control water design method explanation during packer.As shown in figure 1, central pipe of horizontal well,
On the change buckle joint 5 for being installed on the end of pit shaft 1, central tube includes the center tubes being formed by connecting by pre- hole pipe 2 and blind pipe 3, in
Phased valve 6 is installed, the end of center tubes is provided with plug 7, and the outside of center tubes is also cased with sieve on the tube wall of heart body
Pipe 4, the end of screen casing 4 is arranged on the change buckle joint 5 of pit shaft 1.
The horizontal well integral intelligent control water design method that the present invention is provided, comprises the following steps：
1) underlying parameter prepares：Including：Reservoir physical parameter (oil reservoir size, reservoir permeability, reservoir porosity, reservoir
Pressure etc.), reservoir fluid parameter (oil, the physical data under high pressure of water, permeability saturation curve etc.), horizontal wellbore parameter (level
Wellbore trajectory, horizontal well length, mineshaft diameter, completion tubular column internal-and external diameter, pit shaft roughness etc.) and horizontal well match somebody with somebody yield,
If actual oil reservoir is loose sand reservoir, the granularmetric composition distribution curve and integral distribution curve of reservoir rock are also needed to；
2) center tube structure optimization design：Track, permeability are met according to the brill of reservoir characteristic parameter, fluid parameter, horizontal well
Distribution, the production profile gone into operation using the full well of central pipe of horizontal well control water design tool software prediction, predicts water ridge shape, it is determined that
The blind sieve structure of central tube；
3) the single flow design of phased valve 6：The phased control of valve 6 water-carrying capacity is carried out according to individual well fluid properties and proration of single well amount
Design, including software optimization and laboratory experiment test, determine the best effort flow of the phased valve 6 of target well；
4) the phased cloth valve mode of valve 6 optimization：Using the design discharge in step 3, designed by central pipe of horizontal well control water
Tool software carries out the phased cloth valve mode of valve 6 optimization, selects optimal phased valve 6+ center tube structures；
5) the phased number of valve 6 is determined：Obtained individual well is calculated according to central pipe of horizontal well control water design tool software
Relation between the phased number of valve 6 and flowing bottomhole pressure (FBHP) and moisture content reduction amount, it is determined that the optimal number of phased valve 6；
6) effect assessment：Precipitation effect is carried out to final control water scheme using central pipe of horizontal well control water design tool software
Fruit and effect of increasing production evaluation；
7) economic well-being of workers and staff evaluation：Newest prediction according to authoritative institution to crude oil price, carries out the phased completion economy of valve 6 and receives
Benefit is evaluated.
The central pipe of horizontal well control water design tool software that the present embodiment is used is " the central pipe of horizontal well control water announced
Design 1.0 ".
Embodiment 2：
The present embodiment is to installing control water design method explanation during packer.As shown in Fig. 2 central pipe of horizontal well, peace
On change buckle joint 5 loaded on the end of pit shaft 1, central tube includes the center tubes being formed by connecting by pre- hole pipe 2 and blind pipe 3, center
Phased valve 6 is installed, the outside of center tubes is also cased with screen casing 4, and the end of screen casing 4 is arranged on pit shaft 1 on the tube wall of body
Become on buckle joint 5, packer 8 is installed with the inner side annular space of screen casing 4 on the outside of center tubes.
The horizontal well integral intelligent control water design method that the present invention is provided, comprises the following steps：
1) underlying parameter prepares：Including：Reservoir physical parameter (oil reservoir size, reservoir permeability, reservoir porosity, reservoir
Pressure etc.), reservoir fluid parameter (oil, the physical data under high pressure of water, permeability saturation curve etc.), horizontal wellbore parameter (level
Wellbore trajectory, horizontal well length, mineshaft diameter, completion tubular column internal-and external diameter, pit shaft roughness etc.) and horizontal well match somebody with somebody yield,
If actual oil reservoir is loose sand reservoir, the granularmetric composition distribution curve and integral distribution curve of reservoir rock are also needed to；
2) center tube structure optimization design：Track, permeability are met according to the brill of reservoir characteristic parameter, fluid parameter, horizontal well
Distribution, the production profile gone into operation using the full well of central pipe of horizontal well control water design tool software prediction, predicts water ridge shape, it is determined that
The blind sieve structure of central tube；
3) packer 8 installs number and position is determined：In the pre- hole pipe 2 of center tubes and the junction tripping in packer of blind pipe 3
8, if central tube not under to shaft bottom, Ze centers pipe end tripping in packer 8, conversely, center pipe end not tripping in packer 8；
4) the single flow design of phased valve 6：The phased control of valve 6 water-carrying capacity is carried out according to individual well fluid properties and proration of single well amount
Design, including software optimization and laboratory experiment test, determine the best effort flow of the phased valve 6 of target well；
5) the phased cloth valve mode of valve 6 optimization：Using the design discharge in step 3, designed by central pipe of horizontal well control water
Tool software carries out the phased cloth valve mode of valve 6 optimization, selects optimal water control valve 6+ center tube structures；
6) the phased number of valve 6 is determined：Obtained individual well is calculated according to central pipe of horizontal well control water design tool software phased
Relation between the number of valve 6 and flowing bottomhole pressure (FBHP) and moisture content reduction amount, determines each section of optimal number of phased valve 6；
7) effect assessment：Precipitation effect is carried out to final control water scheme using central pipe of horizontal well control water design tool software
Fruit and effect of increasing production evaluation；
8) economic well-being of workers and staff evaluation：Newest prediction according to authoritative institution to crude oil price, carries out the phased completion economy of valve 6 and receives
Benefit is evaluated.
The central pipe of horizontal well control water design tool software that the present embodiment is used is " the central pipe of horizontal well control water announced
Design 1.0 ".
Claims (4)
1. horizontal well integral intelligent well completion design method, it is characterised in that comprise the following steps：
1) underlying parameter prepares：Including：Reservoir physical parameter (oil reservoir size, reservoir permeability, reservoir porosity, reservoir pressure
Deng), reservoir fluid parameter (oil, the physical data under high pressure of water, permeability saturation curve etc.), horizontal wellbore parameter (horizontal well bore
Track, horizontal well length, mineshaft diameter, completion tubular column internal-and external diameter, pit shaft roughness etc.) and horizontal well match somebody with somebody yield, if
Actual oil reservoir is loose sand reservoir, then also needs to the granularmetric composition distribution curve and integral distribution curve of reservoir rock；
2) center tube structure optimization design：Track, Permeability Distribution are met according to the brill of reservoir characteristic parameter, fluid parameter, horizontal well,
The production profile gone into operation using the full well of central pipe of horizontal well control water design tool software prediction, is predicted water ridge shape, determines center
Manage blind sieve structure；
3) tripping in packer (8) is determined whether：Sand is not filled up for the clearly new well of Permeability Distribution and mineshaft annulus
Old well recommends tripping in packer (8), and is filled up for the old well and annular space for carrying out the well stimulations such as staged fracturing or acidifying
The old well of sand then recommends not tripping in packer (8)；
4) packer (8) installs number and position is determined：For the horizontal well of not tripping in packer (8), (8) enter individual under packer
Number is zero；Horizontal well for needing tripping in packer (8), in pre- hole pipe (2) and blind pipe (3) junction tripping in envelope of center tubes
Every device (8), if central tube not under to shaft bottom, Ze centers pipe end tripping in packer (8), conversely, center pipe end not tripping in
Packer (8)；
5) single phased valve (6) flow design：Phased valve (6) control water-carrying capacity is carried out according to individual well fluid properties and proration of single well amount
Design, including software optimization and laboratory experiment test, determine the best effort flow of the phased valve of target well (6)；
6) phased valve (6) cloth valve mode optimization：Using the design discharge in step 5, work is designed by central pipe of horizontal well control water
Have software and carry out phased valve (6) cloth valve mode optimization, select optimal phased valve (6)+center tube structure；
7) phased valve (6) number is determined：The obtained phased valve of individual well is calculated according to central pipe of horizontal well control water design tool software
(6) relation between number and flowing bottomhole pressure (FBHP) and moisture content reduction amount, it is determined that optimal phased valve number (6)；
8) effect assessment：Using central pipe of horizontal well control water design tool software final control water scheme is carried out dewatering effect and
Effect of increasing production is evaluated；
9) economic well-being of workers and staff evaluation：Newest prediction according to authoritative institution to crude oil price, carries out phased valve (6) completion economic well-being of workers and staff
Evaluate.
2. horizontal well integral intelligent well completion design method according to claim 1, it is characterised in that step 2) in center
The outer cover of pipe is equipped with screen casing (4), and the end of screen casing (4) is installed on the change buckle joint (5) on pit shaft horizontal segment top.
3. horizontal well integral intelligent well completion design method according to claim 1, it is characterised in that step 4) described in
Packer (8) be arranged in annular space between center tubes and screen casing (4), packer (8) can be that chemical packer can also
It is mechanical packer.
4. horizontal well integral intelligent well completion design method according to claim 1, it is characterised in that step 5) described in
Phased valve (6) be arranged on center tubes tube wall on, phased valve (6) is a kind of intelligent water-controlled instrument of AICD types.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710229050.0A CN107025346A (en) | 2017-04-10 | 2017-04-10 | Horizontal well integral intelligent well completion design method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710229050.0A CN107025346A (en) | 2017-04-10 | 2017-04-10 | Horizontal well integral intelligent well completion design method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107025346A true CN107025346A (en) | 2017-08-08 |
Family
ID=59527743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710229050.0A Pending CN107025346A (en) | 2017-04-10 | 2017-04-10 | Horizontal well integral intelligent well completion design method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107025346A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725028A (en) * | 2017-11-21 | 2018-02-23 | 齐鲁工业大学 | A kind of horizontal well AICD intelligent water-controlleds screen casing performance test system |
| CN108756831A (en) * | 2018-05-28 | 2018-11-06 | 中国海洋石油集团有限公司 | A kind of horizontal well control water completion structure of self-adaptation type |
| CN111079341A (en) * | 2020-01-19 | 2020-04-28 | 西安石油大学 | Intelligent well completion and oil reservoir unsteady state coupling method based on iterative algorithm |
| CN111090947A (en) * | 2019-12-27 | 2020-05-01 | 西安石油大学 | Intelligent well completion flow simulation method based on point-bridge topological structure |
-
2017
- 2017-04-10 CN CN201710229050.0A patent/CN107025346A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725028A (en) * | 2017-11-21 | 2018-02-23 | 齐鲁工业大学 | A kind of horizontal well AICD intelligent water-controlleds screen casing performance test system |
| CN108756831A (en) * | 2018-05-28 | 2018-11-06 | 中国海洋石油集团有限公司 | A kind of horizontal well control water completion structure of self-adaptation type |
| CN111090947A (en) * | 2019-12-27 | 2020-05-01 | 西安石油大学 | Intelligent well completion flow simulation method based on point-bridge topological structure |
| CN111079341A (en) * | 2020-01-19 | 2020-04-28 | 西安石油大学 | Intelligent well completion and oil reservoir unsteady state coupling method based on iterative algorithm |
| CN111079341B (en) * | 2020-01-19 | 2021-10-01 | 西安石油大学 | Intelligent well completion and oil reservoir unsteady state coupling method based on iterative algorithm |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107025346A (en) | Horizontal well integral intelligent well completion design method | |
| CN104533356B (en) | Two-layer self-control layered oil production method and layered oil production method | |
| CN103527148B (en) | Technology and device for controlling pressure in layered mode and discharging and extracting oil in layer combined mode through double bushes and single pump | |
| CN201567960U (en) | Floating casing pipe installing pipe series | |
| CN104832143B (en) | Water injection well umbilical pipe full-horizon injection regulation device | |
| CN102979495A (en) | Multi-cluster current limiting fracturing string of open hole horizontal well and fracturing method thereof | |
| He et al. | Development and prospect of separated zone oil production technology | |
| CN105804680B (en) | A kind of oil gas field workover operation device with pressure and method | |
| CN104948149B (en) | A kind of multimedium dispensing system suitable in mining site complexity oil reservoir | |
| CN204941492U (en) | Regulation device is injected in water injection well umbilical duct holostrome position | |
| CN112727409A (en) | Reverse gravel filling simulation test device and test method | |
| CN102650205A (en) | Oil extraction method and oil extraction well system for converting bottom water reservoir oil well into gravity flow water injection well | |
| CN104343424B (en) | Coalbed-methane horizontal-well PE (poly ethylene) screen pipe well completion application process method | |
| CN110671080A (en) | Filling tool assembly, self-adaptive water screen pipe string and experimental method | |
| CN111206902A (en) | Water control synergistic transformation method for screen pipe well completion horizontal well | |
| CN104234682A (en) | Coiled tubing separate-layer fracturing method suitable for multiple thin coal seams | |
| CN106150428A (en) | Split type exempting from bores plug completion tubular column and completion method thereof | |
| CN201963286U (en) | Oil production pipe for reducing water content of central pipe of horizontal well | |
| CN104832158B (en) | Sand-proof type machinery box cupling positioning instrument | |
| RU2440488C2 (en) | Method of simultaneous separate operation of multiple-zone wells and device for its implementation | |
| RU2594496C1 (en) | Method for further development of bottom water-drive reservoir with low pressure gas reserves | |
| CN103470233A (en) | Heavy oil reservoir natural gas huff-puff oil production process system and oil production method | |
| RU2540720C1 (en) | Development of oil seam by horizontal well extensions | |
| CN203161114U (en) | Hydraulic centralizer suitable for multistage hydraulic jet fracturing | |
| CN105257263A (en) | Method for combining layered oil production and sand prevention |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170808 |