CN201225122Y - Horizontal well integral adjustable layer subsection water-shutoff tool string - Google Patents
Horizontal well integral adjustable layer subsection water-shutoff tool string Download PDFInfo
- Publication number
- CN201225122Y CN201225122Y CNU2008200905507U CN200820090550U CN201225122Y CN 201225122 Y CN201225122 Y CN 201225122Y CN U2008200905507 U CNU2008200905507 U CN U2008200905507U CN 200820090550 U CN200820090550 U CN 200820090550U CN 201225122 Y CN201225122 Y CN 201225122Y
- Authority
- CN
- China
- Prior art keywords
- centralizer
- packer
- tool string
- horizontal well
- oil
- 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.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 230000011218 segmentation Effects 0.000 claims description 9
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 239000004417 polycarbonate Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 abstract 1
- 210000003813 thumb Anatomy 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000003129 oil well Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The utility model relates to a down-hole tool in the field of oil extraction in an oil field, in particular to an integrative water plugging tool string for sectional adjustable layers in a horizontal well, which solves the problems that production target layers can not be dynamically adjusted when a pumping pipe string of the horizontal well is in a production state. An oil pipe 10 is connected with a pump barrel 12 which is downwards connected with an extension pipe 8, and a safety joint 1 is connected with the extension pipe 8 through the oil pipe 10; the lower end of the safety joint 1 is sequentially connected with a reverse washing well valve 2, a centralizer 7 and a packer 3 which is downwards connected with a plurality of units, each unit is formed by connecting a centralizer 7, a down-hole servo controllable water regulator 4, another centralizer 7 and another packer 3, and the undermost unit is sequentially connected with a centralizer 7, a communicator 6 and a thumb screw 5. The tool string is used in horizontal wells in oil fields. The utility model has the advantages of small outer diameter, sectional water plugging, and the like and improves the work performance, the safety and the reliability of the whole pipe string.
Description
Technical field:
The utility model relates to the used downhole tool in oil recovery field, oil field, especially horizontal well monolithic tunable layer segmentation water clogging tool string.
Background technology:
The oil field of waterflooding extraction enters high moisture, and controlling moisture rising is the important means that improves the oil field development effect.Therefore, water-plugging technique, the secondary oil recovery technology as a kind of improvement receives much attention always.As far back as the thirties, just begin to utilize water base cement and packer to carry out layering card water blockoff abroad.The oil recovery technique of any tunable layer cycle of application ground of exploitation can effectively be exploited the ultra-high water-containing oil well at present, reduces ultra-high water-containing oil well closing well quantity, when control contains the water speed rising, and the remaining oil of further taping the latent power.
Summary of the invention:
The purpose of this utility model has provided and a kind ofly can be used for realizing that water plugging string and flow string go into the well the disposable horizontal well monolithic tunable layer segmentation water clogging tool string of finishing segmentation water blockoff and production simultaneously.
The technical solution of the utility model is: it comprises oil pipe, sleeve pipe and ball sealer, oil pipe places in the sleeve pipe, it is characterized in that: oil pipe is connected with pump barrel, connect telescoping tube under the pump barrel, be connected by oil pipe between safety joint and the telescoping tube, the safety joint lower end connects anti-flushing well valve, centralizer, packer successively, packer below connects a plurality of cell cubes that are connected to form by centralizer, the servo adjustable hydrophone in down-hole, centralizer and packer, and the cell cube of below connects centralizer, linker and plug successively.
Packer is a closed K341-112 type, and external diameter is φ 112mm.The ball sealer material is a polycarbonate, and density is 1.2kg/cm
3, two kinds of specifications of φ 28mm, φ 52mm are arranged.
Compared with the prior art the utility model has following advantage:
Utilize packer and kit by opening or closing the servo adjustable hydrophone in down-hole in each interval, to reach the purpose of tunable layer to desiring processing layer position fragment-force, the servo adjustable hydrophone working life in down-hole can reach more than half a year.Owing to take such scheme, utilize airtight packer and kit to desiring processing layer position fragment-force, make things convenient for tool string to remove, tubular column structure is simple; The pipe pressure two cover deblocking modes of carrying in the employing and buy oil, the safety that improves technology; Adopt telescoping tube, prevent the tubing string wriggling; If tubing string is met card,, can trip out the above pump of safety joint and take out tubing string by pitching.This tool string has reached the purpose of transferring layer shutoff, has also improved the service behaviour and the security reliability of whole tubing string simultaneously.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model.
1-safety joint among the figure, 2-backwash valve, 3-packer, the servo adjustable hydrophone in 4-down-hole, 5-plug, 6-linker, 7-centralizer, 8-telescoping tube, 9-ball sealer, 10-oil pipe, 11-sleeve pipe.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing: by shown in Figure 1, it comprises oil pipe 10, sleeve pipe 11 and ball sealer 9, oil pipe 10 places in the sleeve pipe 11, it is characterized in that: oil pipe 10 is connected with pump barrel 12, pump barrel connects telescoping tube 8 12 times, be connected by oil pipe 10 between safety joint 1 and the telescoping tube 8, safety joint 1 lower end connects anti-flushing well valve 2 successively, centralizer 7, packer 3, packer 3 belows connect by centralizer 7, the servo adjustable hydrophone 4 in down-hole, a plurality of cell cubes that centralizer 7 and packer 3 are connected to form, the cell cube of below connects centralizer 7 successively, linker 6 and plug 5.
Packer 3 is a closed K341-112 type, and external diameter is 112mm.Ball sealer 9 materials are polycarbonate, and density is 1.2kg/cm
3, two kinds of specifications of φ 28mm, φ 52mm are arranged.
During actual the use, pump barrel 12 lower ends connect telescoping tube 8, and the tubing string wriggling lost efficacy packer when preventing that pump from taking out; Every two-stage packer 3 is separated one and is handled interval, and each grade packer 3 two ends respectively connect a centralizer 7, has both helped its packing element of protection in the process of going into the well, and also helps packer 3 setting and sealing at horizontal segment; 3 of every two-stage packers have a servo adjustable hydrophone 4 in down-hole, suppress to the down-hole by ground and send its switch motion of instruction realization, realize the opening and closing of down-hole each minute card interval.
During site operation, guarantee the servo adjustable hydrophone 4 in down-hole on ground all in closing state, in oil pipe 10 carries under this tool string sleeve pipe 11, behind the precalculated position, suppress 15MPa in the oil pipe 10, packer 3 is set, force dividually each water layer or high watercut layer down; Suppress the switch motion of sending the servo adjustable hydrophone 4 in instruction realization down-hole to the down-hole by ground, open the corresponding target layer; If the oil reservoir in the discovery work is moisture excessive, then close the servo adjustable hydrophone 4 in down-hole of equivalent layer, can work on.
Claims (5)
1, the tool string of horizontal well monolithic tunable layer segmentation water blockoff, comprise oil pipe (10), sleeve pipe (11) and ball sealer (9), oil pipe (10) places in the sleeve pipe (11), it is characterized in that: oil pipe (10) is connected with pump barrel (12), connect telescoping tube (8) under the pump barrel (12), be connected by oil pipe (10) between safety joint (1) and the telescoping tube (8), safety joint (1) lower end connects anti-flushing well valve (2) successively, centralizer (7), packer (3), packer (3) below connects by centralizer (7), the servo adjustable hydrophone in down-hole (4), a plurality of cell cubes that centralizer (7) and packer (3) are connected to form, the cell cube of below connects centralizer (7) successively, linker (6) and plug (5).
2, the tool string of horizontal well monolithic tunable layer segmentation water blockoff according to claim 1, it is characterized in that: packer (3) is a closed K341-112 type.
3, the tool string of horizontal well monolithic tunable layer segmentation water blockoff according to claim 1, it is characterized in that: packer (3) external diameter is φ 112mm.
4, the tool string of horizontal well monolithic tunable layer segmentation water blockoff according to claim 1, it is characterized in that: ball sealer (9) material is a polycarbonate, and density is 1.2kg/cm
3
5, the tool string of horizontal well monolithic tunable layer segmentation water blockoff according to claim 1, it is characterized in that: ball sealer (9) has two kinds of specifications of φ 28mm, φ 52mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200905507U CN201225122Y (en) | 2008-07-26 | 2008-07-26 | Horizontal well integral adjustable layer subsection water-shutoff tool string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200905507U CN201225122Y (en) | 2008-07-26 | 2008-07-26 | Horizontal well integral adjustable layer subsection water-shutoff tool string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201225122Y true CN201225122Y (en) | 2009-04-22 |
Family
ID=40598007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200905507U Expired - Fee Related CN201225122Y (en) | 2008-07-26 | 2008-07-26 | Horizontal well integral adjustable layer subsection water-shutoff tool string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201225122Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031947A (en) * | 2010-11-17 | 2011-04-27 | 刘玉文 | Back wash pump negative-pressure oil extraction device |
| CN101608538B (en) * | 2009-07-24 | 2012-12-05 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | External packer of expanding sealing sleeve of internal pipe string tool and construction technique |
| CN109899046A (en) * | 2019-03-18 | 2019-06-18 | 东北石油大学 | A kind of bottom-water reservoir horizontal well volume increase water control method |
| CN115182700A (en) * | 2022-08-01 | 2022-10-14 | 中国石油化工股份有限公司 | Horizontal Well Staged Profile Control String System and Horizontal Well Staged Profile Control Technology |
-
2008
- 2008-07-26 CN CNU2008200905507U patent/CN201225122Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608538B (en) * | 2009-07-24 | 2012-12-05 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | External packer of expanding sealing sleeve of internal pipe string tool and construction technique |
| CN102031947A (en) * | 2010-11-17 | 2011-04-27 | 刘玉文 | Back wash pump negative-pressure oil extraction device |
| CN102031947B (en) * | 2010-11-17 | 2013-07-24 | 刘玉文 | Back wash pump negative-pressure oil extraction device |
| CN109899046A (en) * | 2019-03-18 | 2019-06-18 | 东北石油大学 | A kind of bottom-water reservoir horizontal well volume increase water control method |
| CN115182700A (en) * | 2022-08-01 | 2022-10-14 | 中国石油化工股份有限公司 | Horizontal Well Staged Profile Control String System and Horizontal Well Staged Profile Control Technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090422 Termination date: 20140726 |
|
| EXPY | Termination of patent right or utility model |