CN102758599A - Separate mining and combined mining pipe column for sieve pipe well completion horizontal well and mining method thereof - Google Patents
Separate mining and combined mining pipe column for sieve pipe well completion horizontal well and mining method thereof Download PDFInfo
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- CN102758599A CN102758599A CN201210274910XA CN201210274910A CN102758599A CN 102758599 A CN102758599 A CN 102758599A CN 201210274910X A CN201210274910X A CN 201210274910XA CN 201210274910 A CN201210274910 A CN 201210274910A CN 102758599 A CN102758599 A CN 102758599A
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Abstract
The invention discloses a separate mining and combined mining pipe column for a sieve pipe well completion horizontal well and a mining method thereof. The horizontal well sequentially comprises a vertical well section, an inclined well section and a horizontal section from top to bottom. The pipe column comprises a sleeve pipe, a sieve pipe connected to the lower end of the sleeve pipe and an oil pipe arranged at a lower section of the sleeve pipe and in the sieve pipe, wherein the vertical well section and the inclined well section of the horizontal well perform well cementation through the sleeve pipe. The horizontal section of the horizontal well is a barefoot well section, the sieve pipe is arranged in the barefoot well section, an oil pipe suspension packer is arranged between an inner wall of the sleeve pipe and an outer wall of the oil pipe, a leather cup packer is arranged between an outer wall of a middle section of the oil pipe and an inner wall of a middle section of the sieve pipe, and a sliding sleeve and a working barrel which are capable of being opened or closed are sequentially arranged on an upper half section of the oil pipe from top to bottom. When the sliding sleeve is opened, the oil pipe is communicated with an upper half section of the sieve pipe; when the sliding sleeve is closed, the oil pipe is disconnected with the upper half section of the sieve pipe; when the working barrel is opened, the oil pipe is communicated with a rear half section of the sieve pipe; and when the working barrel is closed, the oil pipe is disconnected with the rear half section of the sieve pipe. Through the separate mining and combined mining pipe column, the separate mining/combined mining operation of the sieve pipe well completion horizontal well can be achieved.
Description
Technical field
The invention belongs to the technical field of exploitation of oil-gas field, relate to horizontal wells tubing string and exploitation method that a kind of oil-gas field development is used.
Background technology
At present, along with the development of oil exploitation technology, adopt the horizontal well technology development of fields to become effective technology means of raising oil recovery rate, well yield, exploitation remaining oil, reduction production cost per tone oil.
The horizontal well of well cementation perforation completion can be adopted and close and adopt through in sleeve pipe, being lowered to segmentation tubing string realization branch; For the horizontal well with the limit bottom water reservoir, completion mode adopts the bare screen sand control completion usually, can use open hole packer to carry out the segmentation completion; For adopting bare screen sand control not use the horizontal wells of open hole packer segmentation completion to have the oil reservoir of water at the bottom of the limit,, therefore can't realize the segmentation exploitation of oil well owing to have annular space between screen casing and the bore hole.
Above-mentioned argumentation content purpose is the various aspects of the technology that maybe be relevant with the various aspects of the present invention that below will be described and/or advocate of introducing to the reader; Believe that this argumentation content helps for the reader background information to be provided; To help understanding various aspects of the present invention better; Therefore, should be appreciated that it is to read these argumentations, rather than admit prior art with this angle.
Summary of the invention
The objective of the invention is to avoid deficiency of the prior art and provide a kind of sieve tube completion horizontal well branch to adopt to close adopt tubing string and exploitation method, it can solve bare screen sand control and not use the uncontrollable branch of horizontal well of open hole packer segmentation completion to adopt to close the technical problem of adopting.
The object of the invention is realized through following technical scheme:
Provide a kind of sieve tube completion horizontal well branch to adopt to close and adopt tubing string, said horizontal well comprises straight well section, lower curved section and horizontal segment from top to bottom successively, and said tubing string comprises sleeve pipe, is connected on the screen casing of sleeve pipe lower end, is arranged on the oil pipe in sleeve pipe hypomere and the screen casing; Wherein, the straight well section of horizontal well and lower curved section are by casing cementing, and the horizontal segment of horizontal well is a barefoot interval; Screen casing is arranged in the barefoot interval; Be provided with the oil pipe hanging packer between said internal surface of sleeve pipe and the oil-pipe external wall, be provided with cup packer between the outer wall in said oil pipe stage casing and the inwall in screen casing stage casing, the upper semisection of oil pipe is provided with the sliding sleeve and the seating nipple that can open or close from top to bottom successively; When sliding sleeve is opened; Said oil pipe is communicated with the upper semisection of screen casing, and when sliding sleeve was closed, the upper semisection of said oil pipe and screen casing broke off; When seating nipple was opened, said oil pipe was communicated with the second half section of screen casing, and when seating nipple cut out, the second half section of said oil pipe and screen casing broke off.
Wherein, be provided with annular chemical packer between the outer wall in said screen casing stage casing and the barefoot interval inwall.
Wherein, said cup packer is two, and two cup packers are provided with dorsad.
Wherein, said sliding sleeve and seating nipple open or close through the control of wire rope instrument.
Wherein, be provided with the screen casing hanging packer between said sleeve pipe and the screen casing.
A kind ofly use above-mentioned sieve tube completion horizontal well branch to adopt to close the exploitation method of adopting tubing string, comprise that branch adopts operation and close and adopt operation:
Divide when adopting operation, open sliding sleeve, close seating nipple, keep the oil pipe latus rectum, oil pipe is communicated with the upper semisection of screen casing, production of water horizontal well leading portion payzone; Close sliding sleeve, open seating nipple, keep the oil pipe latus rectum, oil pipe is communicated with the lower semisection of screen casing, production of water horizontal well back segment payzone;
Close when adopting operation, open sliding sleeve, open seating nipple, keep the oil pipe latus rectum, oil pipe is communicated with the upper semisection and the lower semisection of screen casing simultaneously, the whole payzones of production of water horizontal well.
Beneficial effect of the present invention: owing to adopted above-mentioned structure, when the present invention uses, close and adopt or divide and adopt, when sliding sleeve and seating nipple are opened simultaneously, close and adopt whole payzone through the realization that opens or closes of control sliding sleeve and seating nipple; Open sliding sleeve and close seating nipple, can singly adopt the leading portion payzone; The pass sliding sleeve is opened seating nipple and can singly be adopted the back segment payzone.The present invention can be widely used in the branch of sieve tube completion horizontal well and adopt/close and adopt operation, also is suitable for the horizontal well of well cementation perforation completion, and it has very strong practicality and promotional value.
Description of drawings
Utilize accompanying drawing that the present invention is described further, but the embodiment in the accompanying drawing do not constitute any restriction of the present invention,, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to following accompanying drawing for those of ordinary skill in the art.
Fig. 1 is that a kind of sieve tube completion horizontal well branch is adopted and closed the sectional view of adopting tubing string.
In Fig. 1, include: 1---sleeve pipe, 2---screen casing, 3---oil pipe, 4---barefoot interval, 5---oil pipe hanging packer, 6---cup packer, 7---sliding sleeve, 8---seating nipple, 9---annular chemical packer, 10---screen casing hanging packer.
The specific embodiment
In order to make those skilled in the art understand technical scheme of the present invention better; Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail; Need to prove that under the situation of not conflicting, the application's embodiment and the characteristic among the embodiment can make up each other.
Core of the present invention is to provide a kind of sieve tube completion horizontal well branch to adopt to close and adopts tubing string and exploitation method, and the branch of realizing the sieve tube completion horizontal well is adopted/closed and adopts operation.
As shown in Figure 1; A kind of sieve tube completion horizontal well branch of the present invention is adopted to close and is adopted tubing string; Said horizontal well comprises straight well section, lower curved section and horizontal segment from top to bottom successively; Said tubing string comprises sleeve pipe 1, is connected on the screen casing 2 of sleeve pipe 1 lower end, is arranged on the oil pipe 3 in sleeve pipe 1 hypomere and the screen casing 2, is provided with screen casing hanging packer 10 between said sleeve pipe 1 and the screen casing 2.Wherein, the straight well section of horizontal well and lower curved section are by sleeve pipe 1 well cementation, and the horizontal segment of horizontal well is a barefoot interval 4, and screen casing 2 is arranged in the barefoot interval 4.Be provided with oil pipe hanging packer 5 between said sleeve pipe 1 inwall and oil pipe 3 outer walls, be provided with cup packer 6 between the outer wall in said oil pipe 3 stage casings and the inwall in screen casing 2 stage casings.The upper semisection of oil pipe 3 is provided with the sliding sleeve 7 and seating nipple 8 that can open or close from top to bottom successively, and when sliding sleeve 7 was opened, said oil pipe 3 was communicated with the upper semisection of screen casing 2, and when sliding sleeve 7 was closed, said oil pipe 3 broke off with the upper semisection of screen casing 2; When seating nipple 8 was opened, said oil pipe 3 was communicated with the second half section of screen casing 2, and when seating nipple 8 cut out, said oil pipe 3 broke off with the second half section of screen casing 2.
Preferably, be provided with annular chemical packer 9 between the outer wall in said screen casing 2 stage casings and barefoot interval 4 inwalls.Cup packer and annular chemical packer cooperate payzone inside and outside the screen casing are divided into two sections.
Preferably, said cup packer 6 is two, and two cup packers are provided with dorsad.Two cup packers make up dorsad, bring into play its compartmentation to greatest extent.
Preferably, said sliding sleeve 7 opens or closes through the control of wire rope instrument with seating nipple 8, is easy to realize the switching of sliding sleeve 7 and seating nipple 8 through the wire rope instrument.
Use above-mentioned sieve tube completion horizontal well branch to adopt to close and adopt tubing string and carry out oil-gas mining, comprise that branch adopts operation and close and adopt operation, concrete grammar is following:
Divide when adopting operation, open sliding sleeve, close seating nipple, keep the oil pipe latus rectum, oil pipe is communicated with the upper semisection of screen casing, production of water horizontal well leading portion payzone; Close sliding sleeve, open seating nipple, keep the oil pipe latus rectum, oil pipe is communicated with the lower semisection of screen casing, production of water horizontal well back segment payzone.
Close when adopting operation, open sliding sleeve, open seating nipple, keep the oil pipe latus rectum, oil pipe is communicated with the upper semisection and the lower semisection of screen casing simultaneously, the whole payzones of production of water horizontal well.
In sum, sieve tube completion horizontal well branch of the present invention is adopted and is closed that to adopt design of string pipe reasonable, and principle is simple, can select branch to adopt/close through steel wire operation and adopt operation form, adopts cup packer to be convenient to the lower tubular column that rises of follow-up.
In the present invention, only if clear and definite regulation and qualification are arranged in addition, broad understanding should be done in terms such as term " installation ", " connection ", " linking to each other ", " fixing "; For example, can be fixedly connected, also can be to removably connect; Or connect integratedly, can be directly to link to each other, also can link to each other indirectly through intermediary; Can also refer to the internal communication of two elements, for those of ordinary skill in the art, can understand above-mentioned term concrete implication in the present invention as the case may be.
Set forth a lot of details so that make much of the present invention in the top description, still, the present invention can also adopt other to be different from other modes described here and implement, and therefore, can not be interpreted as the restriction to protection domain of the present invention.
In a word; The above-mentioned preferred implementation though the present invention has given an example should be explained, though those skilled in the art can carry out various variations and remodeling; Only if such variation and remodeling have departed from scope of the present invention, otherwise all should be included in protection scope of the present invention.
Claims (6)
1. a sieve tube completion horizontal well branch is adopted to close and is adopted tubing string; Said horizontal well comprises straight well section, lower curved section and horizontal segment from top to bottom successively; Said tubing string comprises sleeve pipe (1), is connected on the screen casing (2) of sleeve pipe (1) lower end, is arranged on the oil pipe (3) in sleeve pipe (1) hypomere and the screen casing (2); Wherein, the straight well section of horizontal well and lower curved section are by sleeve pipe (1) well cementation, and the horizontal segment of horizontal well is barefoot interval (4); Screen casing (2) is arranged in the barefoot interval (4); Be provided with oil pipe hanging packer (5) between said sleeve pipe (1) inwall and oil pipe (3) outer wall, it is characterized in that: be provided with cup packer (6) between the inwall in the outer wall in said oil pipe (3) stage casing and screen casing (2) stage casing, the upper semisection of oil pipe (3) is provided with the sliding sleeve (7) and the seating nipple (8) that can open or close from top to bottom successively; When sliding sleeve (7) when opening; Said oil pipe (3) is communicated with the upper semisection of screen casing (2), and when sliding sleeve (7) when closing, said oil pipe (3) breaks off with the upper semisection of screen casing (2); When seating nipple (8) when opening, said oil pipe (3) was communicated with the second half section of screen casing (2), and when seating nipple (8) when closing, said oil pipe (3) broke off with the second half section of screen casing (2).
2. a kind of sieve tube completion horizontal well branch according to claim 1 is adopted to close and is adopted tubing string, it is characterized in that: be provided with annular chemical packer (9) between the outer wall in said screen casing (2) stage casing and barefoot interval (4) inwall.
3. a kind of sieve tube completion horizontal well branch according to claim 1 is adopted to close and is adopted tubing string, and it is characterized in that: said cup packer (6) is two, and two cup packers are provided with dorsad.
4. a kind of sieve tube completion horizontal well branch according to claim 1 is adopted to close and adopted tubing string, it is characterized in that: said sliding sleeve (7) and seating nipple (8) open or close through the control of wire rope instrument.
5. adopt to close according to each described a kind of sieve tube completion horizontal well branch in the claim 1 to 4 and adopt tubing string, it is characterized in that: be provided with screen casing hanging packer (10) between said sleeve pipe (1) and the screen casing (2).
6. each described sieve tube completion horizontal well branch is adopted and is closed the exploitation method of adopting tubing string in use such as the claim 1 to 5, comprises that branch adopts operation and close and adopt operation:
Divide when adopting operation, open sliding sleeve, close seating nipple, keep the oil pipe latus rectum, oil pipe is communicated with the upper semisection of screen casing, production of water horizontal well leading portion payzone; Close sliding sleeve, open seating nipple, keep the oil pipe latus rectum, oil pipe is communicated with the lower semisection of screen casing, production of water horizontal well back segment payzone;
Close when adopting operation, open sliding sleeve, open seating nipple, keep the oil pipe latus rectum, oil pipe is communicated with the upper semisection and the lower semisection of screen casing simultaneously, the whole payzones of production of water horizontal well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210274910XA CN102758599A (en) | 2012-08-03 | 2012-08-03 | Separate mining and combined mining pipe column for sieve pipe well completion horizontal well and mining method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210274910XA CN102758599A (en) | 2012-08-03 | 2012-08-03 | Separate mining and combined mining pipe column for sieve pipe well completion horizontal well and mining method thereof |
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| CN102758599A true CN102758599A (en) | 2012-10-31 |
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| CN201210274910XA Pending CN102758599A (en) | 2012-08-03 | 2012-08-03 | Separate mining and combined mining pipe column for sieve pipe well completion horizontal well and mining method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104420836A (en) * | 2013-08-30 | 2015-03-18 | 中国石油天然气股份有限公司 | Horizontal well subsection setting type wellhead flow method water exploration pipe column and water exploration method thereof |
| CN108798539A (en) * | 2017-05-05 | 2018-11-13 | 中国石油化工股份有限公司 | Horizontal well sand control commingled column |
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| CN201165866Y (en) * | 2008-03-04 | 2008-12-17 | 北京华油油气技术开发有限公司 | Horizontal well division and combination extracting pipe column |
| CN101338663A (en) * | 2008-08-07 | 2009-01-07 | 大庆油田有限责任公司 | Horizontal well mechanical staged fracturing blocking-proof process pipe column |
| US20090294128A1 (en) * | 2006-02-03 | 2009-12-03 | Dale Bruce A | Wellbore Method and Apparatus for Completion, Production and Injection |
| CN202718660U (en) * | 2012-08-03 | 2013-02-06 | 中国海洋石油总公司 | Separate exploitation and joint exploitation tubular column in screen-pipe completed horizontal well |
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2012
- 2012-08-03 CN CN201210274910XA patent/CN102758599A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090294128A1 (en) * | 2006-02-03 | 2009-12-03 | Dale Bruce A | Wellbore Method and Apparatus for Completion, Production and Injection |
| CN201165866Y (en) * | 2008-03-04 | 2008-12-17 | 北京华油油气技术开发有限公司 | Horizontal well division and combination extracting pipe column |
| CN101338663A (en) * | 2008-08-07 | 2009-01-07 | 大庆油田有限责任公司 | Horizontal well mechanical staged fracturing blocking-proof process pipe column |
| CN202718660U (en) * | 2012-08-03 | 2013-02-06 | 中国海洋石油总公司 | Separate exploitation and joint exploitation tubular column in screen-pipe completed horizontal well |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104420836A (en) * | 2013-08-30 | 2015-03-18 | 中国石油天然气股份有限公司 | Horizontal well subsection setting type wellhead flow method water exploration pipe column and water exploration method thereof |
| CN108798539A (en) * | 2017-05-05 | 2018-11-13 | 中国石油化工股份有限公司 | Horizontal well sand control commingled column |
| CN108798539B (en) * | 2017-05-05 | 2024-05-24 | 中国石油化工股份有限公司 | Sand-proof combined production string for horizontal well |
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| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xie Yuhong Inventor after: Peng Jianfeng Inventor after: Mu Yongwei Inventor after: Yan Ming Inventor after: Liao Yunhu Inventor after: Yu Zhigang Inventor after: Liang Yukai Inventor after: Jia Hui Inventor after: Xie Siyu Inventor after: Zeng Yubin Inventor after: Wu Shaowei Inventor before: Tian Yi Inventor before: Liang Yukai Inventor before: Xie Siyu Inventor before: Zeng Yubin Inventor before: Jia Hui Inventor before: Peng Jianfeng Inventor before: Mu Yongwei Inventor before: Li Lei Inventor before: Zhang Chao Inventor before: Lu Chuanshi Inventor before: Wu Jiang Inventor before: Huang Kaiwen Inventor before: Xu Yilong Inventor before: Liang Jiwen Inventor before: Zeng Chunmin Inventor before: Zhang Chong Inventor before: Huang Liang Inventor before: Yu Yi Inventor before: Ouyang Tiebing Inventor before: Yan Ming Inventor before: Chen Yan Inventor before: Liao Yunhu Inventor before: Yu Dong Inventor before: Yu Zhigang Inventor before: Yang Bo |
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Free format text: CORRECT: INVENTOR; FROM: TIAN YI HUANG KAIWEN OUYANG TIEBING YAN MING CHEN YAN LIAO YUNHU YU DONG YU ZHIGANG YANG BO LIANG YUKAI XIE SIYU CENG YUBIN JIA HUI PENG JIANFENG MU YONGWEI LI LEI ZHANG CHAO LU CHUANSHI WU JIANG XU YILONG LIANG JIWEN CENG CHUNMIN ZHANG CHONG HUANG LIANG YU YI TO: XIE YUHONG YAN MING LIAO YUNHU YU ZHIGANG LIANG YUKAI JIA HUI XIE SIYU CENG YUBIN WU SHAOWEI PENG JIANFENG MU YONGWEI |
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Application publication date: 20121031 |