CN201963266U - Underground double-pipe technological pipe column - Google Patents

Underground double-pipe technological pipe column Download PDF

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Publication number
CN201963266U
CN201963266U CN2010206737822U CN201020673782U CN201963266U CN 201963266 U CN201963266 U CN 201963266U CN 2010206737822 U CN2010206737822 U CN 2010206737822U CN 201020673782 U CN201020673782 U CN 201020673782U CN 201963266 U CN201963266 U CN 201963266U
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CN
China
Prior art keywords
pipe
inches
test
oil pipe
string
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
Application number
CN2010206737822U
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Chinese (zh)
Inventor
尹恕
杨雄
范炜
黄承胜
钦焕光
吴秀军
程秀波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China National Petroleum Corp
Liaohe Petroleum Exploration Bureau
Original Assignee
China National Petroleum Corp
Liaohe Petroleum Exploration Bureau
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China National Petroleum Corp, Liaohe Petroleum Exploration Bureau filed Critical China National Petroleum Corp
Priority to CN2010206737822U priority Critical patent/CN201963266U/en
Application granted granted Critical
Publication of CN201963266U publication Critical patent/CN201963266U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relaters to the technical field of oil well tests, in particular to an underground double-pipe technological pipe column for production and tests of a horizontal well. The pipe column consists of a production pipe column and a test pipe column; the test pipe column consists of a 1.9inch connecting hoop-free oil pipe, a 1.5inch continuous oil pipe and a test electric cable, wherein the 1.9inch connecting hoop-free oil pipe is sheathed outside the 1.5inch continuous oil pipe, and the test electric cable penetrates in the 1.5inch continuous oil pipe; and the production pipe column consists of a 1.5inch continuous oil pipe, a 2.5inch oil pipe and a positive cycle hydraulic jet pump, wherein the 2.5inch oil pipe is sheathed outside the 1.5inch continuous oil pipe, and the 1.5inch continuous oil pipe and the 2.5inch oil pipe are are connected with the positive cycle hydraulic jet pump. The underground double-pipe technological pipe column can be used for smoothly discharging a tester when the horizontal well is produced, and is simple to use on the spot, so that the horizontal well can be simultaneously produced and tested.

Description

The two-tube process pipe string in a kind of down-hole
Technical field:
The utility model relates to a kind of oil well test technical field, particularly a kind of horizontal well production test two-tube process pipe string in down-hole.
Background technology:
At present, for the production dynamic evaluation of horizontal well,, belong to blank at home especially to the segmentation output situation of net horizontal section, the monitoring of main force's output interval.Look into newly by retrieval, domestic and this technology is approaching at present mainly contains two patents.Wherein in the dual string that application number 98121005.8 is introduced, the tubing string except that flow string is the heating tubing string of sealing and circulating, and removing of tester can not be carried out in the centre, and removing of tubing string do not done introduction yet.The dual string that application number 89105180 is introduced, test string lower end adopt packer sealing to fix, and cut two tubing strings and adopt the shunting insert head to reconfigure, and the scene is used complicated, can not satisfy the needs that the horizontal well production test is carried out at the scene.
The utility model content:
The technical problems to be solved in the utility model provides the two-tube process pipe string in a kind of down-hole, and this tubing string has been realized horizontal well the transferring smoothly of tester when producing, on-the-spot use simple, thereby the horizontal well limit is produced, the limit is tested.Overcome prior art and can not carry out removing of tester or the on-the-spot deficiency of using complexity.
Technical solution adopted in the utility model is: the two-tube process pipe string in a kind of down-hole, form by flow string and test string; Test string is made up of 1.9 inches integral joint tubings, 1.5 inches coiled tubings and test cable, and 1.9 inches integral joint tubings are enclosed within 1.5 inches coiled tubing outsides, are installed with test cable in 1.5 inches coiled tubings; Flow string is made up of 1.5 inches coiled tubings, 2.5 inches oil pipes and direct circulation hydraulic jet pump, and 2.5 inches oil pipes are enclosed within 1.5 inches coiled tubing outsides, and 1.5 inches coiled tubings are connected with the direct circulation hydraulic jet pump with 2.5 inches oil pipes.
The beneficial effects of the utility model are: the utility model is owing to adopted 1.9 inches integral joint tubings to be enclosed within 1.5 inches coiled tubing outsides, 2.5 the inch oil pipe is enclosed within 1.5 inches coiled tubing outsides, 1.5 the mode that inch coiled tubing and 2.5 inches oil pipes are connected with the direct circulation hydraulic jet pump, thereby horizontal well tester when producing can be transferred smoothly, flow string and test string do not disturb in use mutually, the on-the-spot use simply, thereby the horizontal well limit is produced, and the limit is tested.
Description of drawings:
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of direct circulation hydraulic jet pump.
The specific embodiment:
As shown in Figure 1, the two-tube process pipe string in a kind of down-hole is made up of flow string and test string; Two casing strings all are suspended on the special-purpose well head production tree.Test string is made up of 2,1.5 inches coiled tubings 3 of 1.9 inches integral joint tubings and test cable 6, and 1.9 inches integral joint tubings 2 are enclosed within 1.5 inches coiled tubing 3 outsides, are installed with test cable 6 in 1.5 inches coiled tubings 3; Flow string is made up of 3,2.5 inches oil pipes 4 of 1.5 inches coiled tubings and direct circulation hydraulic jet pump 5, and 2.5 inches oil pipes 4 are enclosed within 1.5 inches coiled tubing 3 outsides, and 1.5 inches coiled tubings 3 are connected with direct circulation hydraulic jet pump 5 with 2.5 inches oil pipes 4.
As shown in Figure 2, direct circulation hydraulic jet pump 5 is grouped into by outer part of pump and pump inside, and the pump outer part is drawn together top connection 7, external cover 8, lower seal cover for seat 24, foot valve seat 26 and lower seal section joint 27; Pump is inner divide comprise pump top connection 9, in connect cover 10, positioning sleeve 11, nozzle 12, liquid input section 13, trunnion 14, secondary diffuser 15, sleeve 16, cross-channel section 17, upper seal support 18, bearing ring 19, tetrafluoroethene joint ring 20, retainer ring 21, lining 22, bottom sealing socket 23 and tail pipe 25; Top connection 7, external cover 8, lower seal cover for seat 24, the 27 order screwed connections of lower seal section joint, foot valve seat 26 is fixed on the lower seal section joint 27; Pump top connection 9, in connect cover 10, the 25 order screwed connections of cross-channel section 17, upper seal support 18, bottom sealing socket 23, tail pipe, pump top connection 9 lower ends and nozzle 12 screwed connections are equipped with liquid input section 13 and trunnion 14 and liquid input section 13 and trunnion 14 are compressed between the positioning sleeve 11 of pump top connection 9 lower ends and the secondary diffuser 15; Secondary diffuser 15 outsides are sleeve 16, sleeve 16 and 17 screwed connections of cross-channel section; Be respectively installed with bearing ring 19 and lining 22 on upper seal support 18, the bottom sealing socket 23, be set with tetrafluoroethene joint ring 20 and retainer ring 21 on the lining 22.
During the utility model work, top connection 7, lower seal section joint 27 and 2.5 inches oil pipe 4 screwed connections of the outer part of the pump of direct circulation hydraulic jet pump 5, pump top connection 9 upper ends of part are connected with 1.5 inches coiled tubings 3 in the pump.Flow string of the present utility model and test string do not disturb in use mutually.When flow string was worked in sleeve pipe 1, power fluid was injected by 1.5 inches coiled tubings 3, made 5 work of direct circulation hydraulic jet pump, and the mixed liquor of output liquid and working solution is returned out by 1.5 inches coiled tubings 3 and 2.5 inches oil pipe 4 annular spaces.When needs were tested horizontal well, in the process pipe string lower going-into-well, flow string was produced, and the coiled tubing test carriage that is used to test can be tested from the respective depth that test string enters oil well.During test, can not influence the production of flow string.Wherein the degree of depth of test string G.I.H is greater than flow string, so that test.During lower tubular column, be lowered to 1.9 inches integral joint tubings 2 earlier, following again 2.5 inches oil pipes 4.Process is opposite during lift pipe string.
Embodiment:
On July 12nd, 2010, quiet 31-59FP carries out horizontal well production test construction.2177.5 meters of this well producing well Duan Dingshen, at the bottom of the producing well section dark 2229 meters, 236.7 meters of bed thickness, totally 6 layers.Adopt oil pumper production before the construction, day production fluid 9.1 sides, moisture 55.35%.For obtaining each layer production fluid situation of this well, plan is carried out the horizontal well production test to this well.
Trip out former well casing post, thoroughly well-flushing.Be lowered to 2 to 2170 meters of 1.9 inches integral joint tubings, 2.5 inches oil pipes 4 that are lowered to band direct circulation hydraulic jet pump 5 after the suspension are as flow string to 1502 meter.Hang the back and in flow string, be lowered to 1.5 inches coiled tubings 3, be connected with direct circulation hydraulic jet pump 5 with coild tubing unit.Well head is installed is produced, this well is produced a week, and day production fluid 9.5 sides are moisture 56%, and production fluid is stablized.On July 22nd, 2010, use coild tubing unit to be lowered to 1.5 inches coiled tubings 3 of tape test cable 6 in 1.9 inches integral joint tubings 2.Under production status in 2175 meters to 2230 meters of this horizontal wells six producing zone positions test.
The utility model removes smoothly in test process, jam and power fluid leakage situation do not occur.

Claims (1)

1. the two-tube process pipe string in down-hole is made up of flow string and test string; It is characterized in that: test string is made up of 1.9 inches integral joint tubings (2), 1.5 inches coiled tubings (3) and test cable (6), 1.9 inch integral joint tubing (2) is enclosed within 1.5 inches coiled tubings (3) outside, is installed with test cable (6) in 1.5 inches coiled tubings (3); Flow string is made up of 1.5 inches coiled tubings (3), 2.5 inches oil pipes (4) and direct circulation hydraulic jet pump (5), 2.5 inch oil pipe (4) is enclosed within 1.5 inches coiled tubings (3) outside, 1.5 inches coiled tubings (3) are connected with direct circulation hydraulic jet pump (5) with 2.5 inches oil pipes (4).
CN2010206737822U 2010-12-22 2010-12-22 Underground double-pipe technological pipe column Expired - Fee Related CN201963266U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206737822U CN201963266U (en) 2010-12-22 2010-12-22 Underground double-pipe technological pipe column

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206737822U CN201963266U (en) 2010-12-22 2010-12-22 Underground double-pipe technological pipe column

Publications (1)

Publication Number Publication Date
CN201963266U true CN201963266U (en) 2011-09-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010206737822U Expired - Fee Related CN201963266U (en) 2010-12-22 2010-12-22 Underground double-pipe technological pipe column

Country Status (1)

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CN (1) CN201963266U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103206176A (en) * 2013-04-19 2013-07-17 上海工程机械厂有限公司 Built-in oil pipe drill rod
CN104141463A (en) * 2013-05-07 2014-11-12 中国石油化工股份有限公司 Device and method for negative-pressure sand draining of horizontal well by utilizing concentric double-layer coiled tubing to drag injection pump
CN107575199A (en) * 2015-03-07 2018-01-12 刘玉友 A kind of implementation of underground continuous oil pipe implement
CN108386167A (en) * 2018-02-01 2018-08-10 中国石油天然气集团有限公司 Horizontal well water pumping gas production completion tubular column and production method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103206176A (en) * 2013-04-19 2013-07-17 上海工程机械厂有限公司 Built-in oil pipe drill rod
CN104141463A (en) * 2013-05-07 2014-11-12 中国石油化工股份有限公司 Device and method for negative-pressure sand draining of horizontal well by utilizing concentric double-layer coiled tubing to drag injection pump
CN104141463B (en) * 2013-05-07 2016-05-11 中国石油化工股份有限公司 Concentric bilayer coiled tubing drags jet pump horizontal well negative pressure sand removing device and method
CN107575199A (en) * 2015-03-07 2018-01-12 刘玉友 A kind of implementation of underground continuous oil pipe implement
CN108386167A (en) * 2018-02-01 2018-08-10 中国石油天然气集团有限公司 Horizontal well water pumping gas production completion tubular column and production method

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110907

Termination date: 20111222