CN104234638A - Casing completion multiple-segment fracturing horizontal well water exploration tubular pile and water exploration method thereof - Google Patents
Casing completion multiple-segment fracturing horizontal well water exploration tubular pile and water exploration method thereof Download PDFInfo
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- CN104234638A CN104234638A CN201310249863.8A CN201310249863A CN104234638A CN 104234638 A CN104234638 A CN 104234638A CN 201310249863 A CN201310249863 A CN 201310249863A CN 104234638 A CN104234638 A CN 104234638A
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Abstract
The invention discloses a casing completion multiple-segment fracturing horizontal well water exploration tubular pile and a water exploration method thereof and aims to guarantee the water controlling and oil adding measurements of a horizontal well. The water exploration tubular pile comprises a screwed plug, intelligent switches in multiple stages, hydraulic isolators Y341 in multiple stages, a mechanical isolator Y221, a screen tube, a cylinder pump and a sucker rod which are connected. The water exploration tubular pile is operated through procedures of assembling a pile body with the well, sealing the isolator, exploring water in a segmented manner and removing the tubular pile. The hydraulic isolators Y341 in multiple stages can isolate the tubing casing annulus effectively, a pile body can be anchored through the mechanical isolator, segmented production of segments can be implemented through the intelligent switches, and the screen tube is capable of measuring and acquiring multi-layer dynamic liquid levels. By the aid of the water exploration tubular pile, a construction tubular pile and a production tubular pile can be finished once, the process is simple, the water exploration tubular pile is safe and reliable, tests of capacity, pressure and temperature of multiple layers of the horizontal well can be completed once, the water discharging segment and water flow can be confirmed, and the reliable basis is provided for the water controlling and oil adding measurements of the horizontal well.
Description
Technical field
The present invention relates to a kind of cased hole completion multistage pressure break horizontal well machinery searching pipe column and groundwater prospecting method thereof, belong to oil extraction in oil field technical field.
Background technology
Utilize horizontal wells low permeability oil field can suggestions for improvement largely, improve recovery ratio.Horizontal well has the well completion interval longer than straight well, and oil well output is improved by expanding oil reservoir drainage area, can reach more than three times of straight well output.But, due to the well track of horizontal well self and flooding pattern complicated and changeable, the different in kind of each oil reservoir lithology, physical property and reservoir fluid, horizontal well be there are differences in the water absorbing capacity, water-front advance velocity and production fluid situation etc. of each interval, indivedual interval water breakthrough early, water bearing bed position and direction indefinite, each layer production capacity and pressure condition unclear.Because the water detection technology of horizontal well is still immature, particularly the water detection technology of the low liquid measure horizontal well of low-permeability oil deposit is also in the exploratory development stage, causes on-the-spot dynamic conditioning measure without specific aim, has a strong impact on the development effectiveness of horizontal well.
At present, the general hydraulic packer sealed clamping cleat that adopts opens each pay interval, is connected on test string, carries out extraction operation in down-hole to pay interval by rod-type oil extraction pump.But mostly fouling is serious due to High water cut and water logging horizontal well, after hydraulic packer sets, rod-type oil extraction pump piston and sucker rod cannot smoothly under enter in pump barrel, Y441 Bidirectional anchor packer is difficult at horizontal segment deblocking; If be used alone Y341 packer, then tubing string is easily wriggled in pumping process, affects tubing string sealing.
Summary of the invention
The object of the present invention is to provide a kind of cased hole completion multistage pressure break horizontal well machinery searching pipe column and groundwater prospecting method thereof, for the water-control oil-increasing measure of horizontal well provides Reliable guarantee.
The concrete technology contents of this cased hole completion multistage pressure break horizontal well machinery searching pipe column is as follows:
The plug of this searching pipe column end upwards connects the first intelligent switch device, a Y341 hydraulic packer, the second intelligent switch device, the 2nd Y341 hydraulic packer, the 3rd intelligent switch device, the 3rd Y341 hydraulic packer and the 4th intelligent switch device that are located in horizontal well horizontal segment successively by oil pipe, the Y221 mechanical packer be located in horizontal well vertical section is connected by oil pipe, the sucker rod that Y221 mechanical packer upwards connects screen casing, whole cylinder pump successively and is located in oil pipe above 4th intelligent switch device.
The groundwater prospecting method of this cased hole completion multistage pressure break horizontal well machinery searching pipe column is as follows:
By this searching pipe column G.I.H assembled, above carry and transfer tubing string, setting the Y221 mechanical packer in straight well section, the whole tubing string of grappling; Carry out oil jacket applied pressure by annulus from well head, hydraulic pressure enters oil pipe through screen casing, sets Y341 hydraulic packer at different levels; Under enter sucker rod, turn on pump is produced, and intelligence at different levels is closed device and performed according to pre-set programs and close and breakdown action, carries out the production of an interval sometime, completes the sampling monitoring of well head list amount, moisture and production capacity; After test terminates, above carry operating tool string, deblocking Y221 mechanical packer and Y341 hydraulic packer at different levels, trip out this searching pipe column.
Searching pipe column of the present invention can realize operating tool string and flow string once completes, activities is reliably simple and safe, the test of the production capacity of each interval of horizontal well, pressure and temperature can be completed by one-trip string, specify water exit interval and water flow, for the water-control oil-increasing measure of horizontal well provides reliable foundation.
Accompanying drawing explanation
Fig. 1 is this cased hole completion multistage pressure break horizontal well machinery searching pipe column schematic diagram.
Detailed description of the invention
Embodiment:
With reference to Fig. 1, embodiments of the invention are further illustrated:
The plug 1 of this searching pipe column end upwards connects the first intelligent switch device 2, Y341 hydraulic packer 3, a second intelligent switch device 4, the 2nd Y341 hydraulic packer 5, the 3rd intelligent switch device 6, the 3rd Y341 hydraulic packer 7 and the 4th intelligent switch device 8 that are located in horizontal well horizontal segment successively by oil pipe 9, the sucker rod 13 that Y221 mechanical packer 10, the Y221 mechanical packer 10 be located in horizontal well vertical section by oil pipe 9 connection above 4th intelligent switch device 8 is upwards connected screen casing 11, whole cylinder pump 12 successively and is located in oil pipe 9.
The function of each parts of this searching pipe column is as follows:
Oil pipe 9 is for connecting this pipe column tools string; Be located at Y341 hydraulic packers at different levels between each oil reservoir for effective packing oil jacket annular space; Casing pressure above it for the whole tubing string of grappling, and imports in the oil pipe 9 below it by Y221 mechanical packer 10, and what ensure Y341 hydraulic packer 3 at different levels sets demand; Be located at each intelligent switch device in oil reservoir packing section for realizing the layerwise production of each interval; Screen casing 11 for the formation of with importing casing pressure, produce in pumping process at tubing string, measure every layer of producing fluid level; Whole cylinder pump 12 is for connecting ground installation by sucker rod 13.
The groundwater prospecting method of this searching pipe column is as follows:
1) this searching pipe column is entered under: assemble this searching pipe column, then G.I.H;
2) set: above carry and transfer this searching pipe column, set the Y221 mechanical packer 10 in straight well section, the whole tubing string of grappling; Carry out oil jacket applied pressure by annulus from well head, hydraulic pressure enters oil pipe 9 through screen casing 11, sets Y341 hydraulic packer at different levels;
3) segmentation water detection: under enter sucker rod 13, turn on pump is produced, and intelligence at different levels is closed device and performed according to pre-set programs and close and breakdown action, carries out the production of an interval sometime, completes the sampling monitoring of well head list amount, moisture and production capacity;
4) searching pipe column is tripped out: after test terminates, above carry operating tool string, deblocking Y221 mechanical packer 10 and Y341 hydraulic packer at different levels, trip out this searching pipe column.
Claims (2)
1. a cased hole completion multistage pressure break horizontal well machinery searching pipe column, is characterized in that:
The plug (1) of this searching pipe column end upwards connects the first intelligent switch device (2) be located in horizontal well horizontal segment successively by oil pipe (9), one Y341 hydraulic packer (3), second intelligent switch device (4), 2nd Y341 hydraulic packer (5), 3rd intelligent switch device (6), 3rd Y341 hydraulic packer (7) and the 4th intelligent switch device (8), 4th intelligent switch device (8) top connects by oil pipe (9) the Y221 mechanical packer (10) be located in horizontal well vertical section, Y221 mechanical packer (10) upwards connects screen casing (11) successively, whole cylinder pump (12) and the sucker rod (13) be located in oil pipe (9).
2. a method of work for cased hole completion multistage pressure break horizontal well machinery searching pipe column, is characterized in that its concrete operation step is as follows:
1) this searching pipe column is entered under: assemble this searching pipe column, then G.I.H;
2) set: above carry and transfer this searching pipe column, set the Y221 mechanical packer (10) in straight well section, the whole tubing string of grappling; Carry out oil jacket applied pressure by annulus from well head, hydraulic pressure enters oil pipe (9) through screen casing (11), sets Y341 hydraulic packer at different levels;
3) segmentation water detection: under enter sucker rod (13), turn on pump is produced, and intelligence at different levels is closed device and performed according to pre-set programs and close and breakdown action, carries out the production of an interval sometime, completes the sampling monitoring of well head list amount, moisture and production capacity;
4) searching pipe column is tripped out: after test terminates, above carry operating tool string, deblocking Y221 mechanical packer (10) and Y341 hydraulic packer at different levels, trip out this searching pipe column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310249863.8A CN104234638B (en) | 2013-06-21 | 2013-06-21 | Cased hole completion multistage pressure break horizontal well machinery searching pipe column and its groundwater prospecting method |
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| CN201310249863.8A CN104234638B (en) | 2013-06-21 | 2013-06-21 | Cased hole completion multistage pressure break horizontal well machinery searching pipe column and its groundwater prospecting method |
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| Publication Number | Publication Date |
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| CN104234638A true CN104234638A (en) | 2014-12-24 |
| CN104234638B CN104234638B (en) | 2017-10-17 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107304667A (en) * | 2016-04-21 | 2017-10-31 | 中国石油天然气股份有限公司 | Completion tubular column |
| CN108019191A (en) * | 2016-11-01 | 2018-05-11 | 中国石油化工股份有限公司 | A kind of tubing string and completion method |
| CN108397186A (en) * | 2018-01-31 | 2018-08-14 | 中国石油天然气股份有限公司 | A kind of horizontal well temperature excitement water detection device and method |
| CN108979618A (en) * | 2017-06-02 | 2018-12-11 | 中石化石油工程技术服务有限公司 | A kind of complete well multi-point test method of horizontal well sieve tube |
| CN109751020A (en) * | 2019-01-17 | 2019-05-14 | 中国石油天然气股份有限公司 | A kind of horizontal well intelligence seperated layer water injection and separate-layer production string and process |
| CN110017138A (en) * | 2019-05-08 | 2019-07-16 | 中国科学院武汉岩土力学研究所 | Air water multilayer sampling method and device in a kind of drilling |
| CN110984926A (en) * | 2019-12-24 | 2020-04-10 | 辽宁隆立智能科技有限公司 | Intelligent control layered oil production well completion pipe string system and control method thereof |
| CN111577257A (en) * | 2020-06-19 | 2020-08-25 | 陕西捷奥能源科技有限公司 | Horizontal well subsection setting type flow metering water exploration pipe column and water exploration method thereof |
| CN111622749A (en) * | 2020-04-14 | 2020-09-04 | 中国石油化工股份有限公司 | Water exploration pipe column and water exploration method for thick oil thermal recovery screen pipe well completion horizontal well |
| CN112412400A (en) * | 2020-11-20 | 2021-02-26 | 江苏华安科研仪器有限公司 | Intelligent horizontal well for physical model |
| CN112901131A (en) * | 2021-02-20 | 2021-06-04 | 中海油能源发展股份有限公司 | Staged fracturing process pipe column for loose sandstone in-service screen pipe sand-prevention horizontal well and operation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107304667A (en) * | 2016-04-21 | 2017-10-31 | 中国石油天然气股份有限公司 | Completion tubular column |
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| CN108019191B (en) * | 2016-11-01 | 2020-02-18 | 中国石油化工股份有限公司 | Tubular column and well completion method |
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| CN108397186A (en) * | 2018-01-31 | 2018-08-14 | 中国石油天然气股份有限公司 | A kind of horizontal well temperature excitement water detection device and method |
| CN109751020B (en) * | 2019-01-17 | 2023-08-22 | 中国石油天然气股份有限公司 | Intelligent layered water injection and layered oil production pipe column for horizontal well and technological method |
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| CN110017138A (en) * | 2019-05-08 | 2019-07-16 | 中国科学院武汉岩土力学研究所 | Air water multilayer sampling method and device in a kind of drilling |
| CN110984926A (en) * | 2019-12-24 | 2020-04-10 | 辽宁隆立智能科技有限公司 | Intelligent control layered oil production well completion pipe string system and control method thereof |
| CN110984926B (en) * | 2019-12-24 | 2024-02-02 | 辽宁隆立智能科技有限公司 | Intelligent control layered oil extraction well completion pipe string system and control method thereof |
| CN111622749A (en) * | 2020-04-14 | 2020-09-04 | 中国石油化工股份有限公司 | Water exploration pipe column and water exploration method for thick oil thermal recovery screen pipe well completion horizontal well |
| CN111577257A (en) * | 2020-06-19 | 2020-08-25 | 陕西捷奥能源科技有限公司 | Horizontal well subsection setting type flow metering water exploration pipe column and water exploration method thereof |
| CN111577257B (en) * | 2020-06-19 | 2023-03-28 | 陕西捷奥能源科技有限公司 | Horizontal well subsection setting type flow metering water exploration pipe column and water exploration method thereof |
| CN112412400A (en) * | 2020-11-20 | 2021-02-26 | 江苏华安科研仪器有限公司 | Intelligent horizontal well for physical model |
| CN112901131B (en) * | 2021-02-20 | 2022-07-22 | 中海油能源发展股份有限公司 | Staged fracturing process pipe column for loose sandstone in-service screen pipe sand-prevention horizontal well and operation method |
| CN112901131A (en) * | 2021-02-20 | 2021-06-04 | 中海油能源发展股份有限公司 | Staged fracturing process pipe column for loose sandstone in-service screen pipe sand-prevention horizontal well and operation method |
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