CN201273188Y - Integrated water exploration pipe column of casing tube well-completion horizontal well - Google Patents

Integrated water exploration pipe column of casing tube well-completion horizontal well Download PDF

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Publication number
CN201273188Y
CN201273188Y CNU2008201228509U CN200820122850U CN201273188Y CN 201273188 Y CN201273188 Y CN 201273188Y CN U2008201228509 U CNU2008201228509 U CN U2008201228509U CN 200820122850 U CN200820122850 U CN 200820122850U CN 201273188 Y CN201273188 Y CN 201273188Y
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China
Prior art keywords
oil
packer
pipe
oil pipe
centralizer
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Expired - Lifetime
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CNU2008201228509U
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Chinese (zh)
Inventor
吕亿明
杨承宗
黄伟
郭方元
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China Petroleum and Natural Gas Co Ltd
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China Petroleum and Natural Gas Co Ltd
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Priority to CNU2008201228509U priority Critical patent/CN201273188Y/en
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Anticipated expiration legal-status Critical
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Abstract

A casing well completion horizontal well integration water-surveying pipe string is applied on the oilfield oil well water surveying, which mainly comprises an oil production pump, a safety joint, a coupling chamfering oil pipe, a switch, a stabilizer, a packer and a guiding pipe plug, wherein the oil production pump is connected on the lower portion of an oil pipe, the safety joint is connected on the lower portion of the oil production pump, the oil pipe is connected on the lower portion of the safety joint, and the oil pipe is connected with the horizontal section of the oil pipe. The water-surveying pipe string is characterized in that the coupling chamfering oil tube is connected on the lower end of the oil pipe in a horizontal well section, the switch, the coupling chamfering oil pipe, the stabilizer, the packer and a coupling chamfering oil pipe are connected on the lower end of the coupling chamfering oil pipe in turn, and the most low end of the coupling chamfering oil pipe is connected with the guiding pipe plug. The water-surveying pipe string has the effects that the water-surveying test and the oil production are integrated, a bridge oil production pump is adopted in the oil pumping process, and the load under the pump can be carried by a bridge external hanging, a pump cylinder has no load, a self-sealing leather packer is adopted, the setting does not need to pressurize, and the switch can be automatically opened and closed, and can realize the underground layer exchange without passing through the ground.

Description

The integrated searching pipe column of cased hole completion horizontal well
Technical field
The utility model relates to oil recovery technique field, oil field, and particularly oil well water detection technology is the process pipe string of a kind of cased hole completion net horizontal section water detection.
Background technology
At present, the oil well searching pipe column only is applicable to straight well, directional well.Oil well intelligent method zonal testing water detection process pipe string has two classes at present.
One class is that production test is the back throwing valve tubing string of one, one-trip string can be finished the water detection test, is to be connected and composed from top to bottom by tubing pump, back throwing valve, telescoping tube, one-level packer, one-level water detection tester, secondary packer, secondary water detection tester, three grades of packers, three grades of water detection testers, level Four packer, level Four water detection tester and plugs.This class tubing string adopts fluid pressure type ZPY341 packer, back to throw faner apparatus and tubing pump, need suppress behind the following intact tubing string to set.Because the special construction of horizontal well, if be used for horizontal well water detection, multistage packing can't be verified in the horizontal segment sealing, tests back deblocking difficulty and easily causes down-hole accident, and load causes the tubing pump operational failure than conference under the pump simultaneously.
Another kind ofly be made up of pumping pipe string and test string two parts, need down twice tubing string to finish, beat hydraulic pressure from oil pipe behind the following intact operating tool string to make packer setting, and then pitching is to back-off sub, pressurization realizes that tubing string gives up again.Trip out and be lowered to pump behind the operating tool string and take out flow string, oil well drops into ordinary production then.Test string adopts the Y341 packer to realize the card layer by giving up, look for Packer for blocking water, intelligent switch and setting ball seat to constitute.Because the special construction of horizontal well, be used for net horizontal section and can occur multistage packing sealing equally and can't verify the deblocking difficulty.
Summary of the invention
The purpose of this utility model is: provide a kind of cased hole completion horizontal well integrated searching pipe column, realize that one-trip string is finished cased hole completion horizontal well in segments water detection test and oil recovery is produced.
The technical solution adopted in the utility model is: the integrated searching pipe column of cased hole completion horizontal well mainly is made up of oil extraction pump, safety joint, box cupling chamfering oil pipe, derailing switch, centralizer and packer and guiding plug, the oil pipe bottom is connected with oil extraction pump, oil extraction pump bottom attachment security joint, the safety joint bottom is connected with oil pipe, and oil pipe is connected to the horizontal segment of oil well.It is characterized in that: at net horizontal section, the lower end of oil pipe connects box cupling chamfering oil pipe, and box cupling chamfering oil pipe lower end is connected with derailing switch, box cupling chamfering oil pipe, centralizer and packer, box cupling chamfering oil pipe in turn, is connected with the guiding plug bottom.
The quantity of described derailing switch is three, and the quantity of centralizer and packer is two, between per two derailing switches a centralizer and packer is arranged.
The quantity of described derailing switch is four, and the quantity of centralizer and packer is three, between per two derailing switches a centralizer and packer is arranged.
Described oil extraction pump is the gap bridge oil extraction pump, and the centralizer of employing and packer are brake pad centralizer and cup packer, and the position of centralizer and packer is between per two perforated intervals of horizontal case.
The integrated searching pipe column of cased hole completion horizontal well can be finished horizontal well in segments water detection test, and behind the following intact tubing string, cup packer directly leaves each perforated interval card, need not suppress the seat envelope; Then, start the production test of pumping continuously of ground oil pumper.The plug-in carrying of passing a bridge of gap bridge oil extraction pump, the pump barrel of oil extraction pump is not subjected to load.
Before tubing string is gone into the well, according to the testing time of each section corresponding derailing switch switch acquisition time is set on ground.Well operations under the searching pipe column, the derailing switch of first section water detection correspondence is in opening, and other derailing switch is a closed condition, and first section output liquid is pumped into ground by the gap bridge oil extraction pump, thereby obtains individual layer production fluid amount, data such as moisture.To closing of fixed time first section water detection correspondence, first section water detection finishes.Second section derailing switch opened on schedule automatically, runs to the predetermined shut-in time to close the creation data that this time period admission is second section automatically.Can obtain each section production fluid amount, data such as moisture successively respectively.
The beneficial effects of the utility model: the integrated searching pipe column water detection test of the utility model cased hole completion horizontal well is one with the production of recovering the oil, and one-trip string can be finished cased hole completion horizontal well in segments water detection test and recover the oil and produce.Oil pumping process adopts the gap bridge oil extraction pump, makes that load is by the plug-in carrying of passing a bridge under the pump, and pump barrel is not subjected to load, has guaranteed the normal pumping of oil well pump.The cup packer of self-styled form is adopted in packing between each perforated interval, need not move tubing string during the seat envelope or suppress the seat envelope.Each perforated interval correspondence is provided with the instruction automatic switch that derailing switch can be provided with according to ground in advance, need not realize that the down-hole changes layer by Ground Operation.
Description of drawings
Fig. 1 is the integrated searching pipe column structural representation of the utility model utility model cased hole completion horizontal well.
Among the figure, 1. oil pipe, 2. oil extraction pump, 3. safety joint, 4. box cupling chamfering oil pipe, 5. derailing switch, 6. centralizer and packer, 7. guiding plug.
The specific embodiment
Embodiment 1: with the net horizontal section sleeve pipe three water detection sections being arranged is example, and the integrated searching pipe column of the utility model cased hole completion horizontal well is described in further detail.
Consult Fig. 1.The integrated searching pipe column of cased hole completion horizontal well mainly is made up of oil extraction pump 2, safety joint 3, box cupling chamfering oil pipe 4, derailing switch 5, centralizer and packer 6 and guiding plug 7, and oil pipe 1 bottom is connected with an oil extraction pump 2, and oil extraction pump 2 is a gap bridge oil extraction pump 2.Gap bridge oil extraction pump 2 bottoms connect a safety joint 3, and safety joint 3 bottoms are connected with oil pipe 1, and oil pipe 1 is connected to the horizontal segment of oil well.At net horizontal section, the lower end of oil pipe 1 is connected with box cupling chamfering oil pipe 4, and box cupling chamfering oil pipe 4 lower ends are connected with derailing switch 5, box cupling chamfering oil pipe 4, centralizer and packer 6, box cupling chamfering oil pipe 4 in turn, is connected with guiding plug 7 bottom.
The quantity of derailing switch 5 is three, and the quantity of centralizer and packer 6 is two, between per two derailing switches 5 centralizer and packer 6 is arranged.One section box cupling chamfering oil pipe 4 is arranged, 4 interconnect functions of box cupling chamfering oil pipe between derailing switch 5 and centralizer and packer 6.The centralizer and the packer 6 that adopt are brake pad centralizer and cup packer 6, and the position of centralizer and packer 6 is between per two perforated intervals of horizontal case.
Searching pipe column is gone into the well: according to horizontal well well bore parameter situation, the integrated searching pipe column of design splicing sleeve completion horizontal well utilizes two centralizers and packer 6 that three oil reservoir cards are opened.At derailing switch of each oil reservoir (well-case perforating section) position serial connection, between per two derailing switches a brake pad centralizer and cup packer 6 are arranged, be lowered in the horizontal well together.
The water detection process: according to the sectionalization test requirement of horizontal well down-hole, be provided with the switch time on ground to derailing switch.In stage of finding, have only a derailing switch to open in the same time, each layer is opened independent production several days in turn.The ground staff determines the production fluid flow volume property of each layer by to every layer of production fluid metering chemical examination, obtains the data such as production fluid flow, moisture content of this layer.

Claims (4)

1, the integrated searching pipe column of a kind of cased hole completion horizontal well, mainly by oil extraction pump (2), safety joint (3), box cupling chamfering oil pipe (4), derailing switch (5), centralizer and packer (6) and guiding plug (7) are formed, oil pipe (1) bottom is connected with oil extraction pump (2), oil extraction pump (2) bottom attachment security joint (3), safety joint (3) bottom is connected with oil pipe (1), oil pipe (1) is connected to the horizontal segment of oil well, it is characterized in that: at net horizontal section, the lower end of oil pipe (1) connects box cupling chamfering oil pipe (4), box cupling chamfering oil pipe (4) lower end is connected with derailing switch (5) in turn, box cupling chamfering oil pipe (4), centralizer and packer (6), box cupling chamfering oil pipe (4) is connected with guiding plug (7) bottom.
2, the integrated searching pipe column of cased hole completion horizontal well according to claim 1, it is characterized in that: the quantity of described derailing switch (5) is three, the quantity of centralizer and packer (6) is two, and a centralizer and packer (6) are arranged between per two derailing switches (5).
3, the integrated searching pipe column of cased hole completion horizontal well according to claim 1, it is characterized in that: the quantity of described derailing switch (5) is four, the quantity of centralizer and packer (6) is three, and a centralizer and packer (6) are arranged between per two derailing switches (5).
4, according to claim 1, the integrated searching pipe column of 2 or 3 described cased hole completion horizontal wells, it is characterized in that: described oil extraction pump (2) is a gap bridge oil extraction pump (2), the centralizer and the packer (6) that adopt are brake pad centralizer and cup packer (6), and the position of centralizer and packer (6) is between per two perforated intervals of horizontal case.
CNU2008201228509U 2008-10-08 2008-10-08 Integrated water exploration pipe column of casing tube well-completion horizontal well Expired - Lifetime CN201273188Y (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102505921A (en) * 2011-11-04 2012-06-20 中国石油天然气股份有限公司 Water searching pipe column of open-hole horizontal well
CN102747967A (en) * 2012-07-10 2012-10-24 中国石油天然气股份有限公司 Multi-stage segmented release water exploration pipe column and method for casing well completion multi-stage fractured horizontal well
CN103382835A (en) * 2013-07-25 2013-11-06 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 Water exploration and plugging technology by adopting intelligent switches
CN101701518B (en) * 2009-09-15 2014-03-12 中国海洋石油总公司 Pipe string used for high-speed test of pressure control and water stabilization of horizontal well
CN103998783A (en) * 2011-12-15 2014-08-20 雷兹生产有限公司 Horizontal and vertical well fluid pumping system
CN104278988A (en) * 2013-07-05 2015-01-14 天津大港油田钻采技术开发公司 Sidetracking well three-layer water finding and blocking and production operation integrated tubular column and operating method thereof
CN104420868A (en) * 2013-08-30 2015-03-18 中国石油天然气股份有限公司 Horizontal well oil casing annulus fluid returning fast water finding tubular column and water finding method thereof
CN104632195A (en) * 2013-11-08 2015-05-20 中国石油天然气股份有限公司 Gas lift flow assistance horizontal well water exploration pipe column and method
CN105178947A (en) * 2015-09-18 2015-12-23 中国石油天然气股份有限公司 Water locating-plugging integration method for horizontal well
CN105569635A (en) * 2015-12-31 2016-05-11 中国石油天然气股份有限公司 Process pipe column for horizontal well fluid producing profile testing technology and test method
CN110206531A (en) * 2019-05-23 2019-09-06 广州海洋地质调查局 A kind of oil pipe of horizontal well production profile test method and device
CN111852449A (en) * 2020-09-09 2020-10-30 哈尔滨艾拓普科技有限公司 Continuous dragging type horizontal well produced liquid sectional test system
CN112360387A (en) * 2020-12-08 2021-02-12 中国石油天然气股份有限公司 Balanced production water control pipe column and method for casing completion horizontal well
CN112943182A (en) * 2021-01-11 2021-06-11 中国石油天然气股份有限公司 Free layer changing device and method for horizontal well

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101701518B (en) * 2009-09-15 2014-03-12 中国海洋石油总公司 Pipe string used for high-speed test of pressure control and water stabilization of horizontal well
CN102505921B (en) * 2011-11-04 2014-02-05 中国石油天然气股份有限公司 Water searching pipe column of open-hole horizontal well
CN102505921A (en) * 2011-11-04 2012-06-20 中国石油天然气股份有限公司 Water searching pipe column of open-hole horizontal well
CN103998783A (en) * 2011-12-15 2014-08-20 雷兹生产有限公司 Horizontal and vertical well fluid pumping system
CN102747967A (en) * 2012-07-10 2012-10-24 中国石油天然气股份有限公司 Multi-stage segmented release water exploration pipe column and method for casing well completion multi-stage fractured horizontal well
CN104278988A (en) * 2013-07-05 2015-01-14 天津大港油田钻采技术开发公司 Sidetracking well three-layer water finding and blocking and production operation integrated tubular column and operating method thereof
CN103382835B (en) * 2013-07-25 2016-05-04 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 Intelligent switch is looked for, water-plugging technique
CN103382835A (en) * 2013-07-25 2013-11-06 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 Water exploration and plugging technology by adopting intelligent switches
CN104420868B (en) * 2013-08-30 2017-12-01 中国石油天然气股份有限公司 Horizontal well oil jacket annular space returns the quick searching pipe column of liquid and its groundwater prospecting method
CN104420868A (en) * 2013-08-30 2015-03-18 中国石油天然气股份有限公司 Horizontal well oil casing annulus fluid returning fast water finding tubular column and water finding method thereof
CN104632195A (en) * 2013-11-08 2015-05-20 中国石油天然气股份有限公司 Gas lift flow assistance horizontal well water exploration pipe column and method
CN104632195B (en) * 2013-11-08 2017-12-19 中国石油天然气股份有限公司 A kind of gaslift helps flowing water horizontal well searching pipe column and method
CN105178947A (en) * 2015-09-18 2015-12-23 中国石油天然气股份有限公司 Water locating-plugging integration method for horizontal well
CN105569635A (en) * 2015-12-31 2016-05-11 中国石油天然气股份有限公司 Process pipe column for horizontal well fluid producing profile testing technology and test method
CN110206531A (en) * 2019-05-23 2019-09-06 广州海洋地质调查局 A kind of oil pipe of horizontal well production profile test method and device
CN111852449A (en) * 2020-09-09 2020-10-30 哈尔滨艾拓普科技有限公司 Continuous dragging type horizontal well produced liquid sectional test system
CN111852449B (en) * 2020-09-09 2022-11-25 哈尔滨艾拓普科技有限公司 Continuous dragging type horizontal well produced liquid sectional test system
CN112360387A (en) * 2020-12-08 2021-02-12 中国石油天然气股份有限公司 Balanced production water control pipe column and method for casing completion horizontal well
CN112943182A (en) * 2021-01-11 2021-06-11 中国石油天然气股份有限公司 Free layer changing device and method for horizontal well

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