CN205330552U - Multi -functional flow string of horizontal well - Google Patents

Multi -functional flow string of horizontal well Download PDF

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Publication number
CN205330552U
CN205330552U CN201521119778.0U CN201521119778U CN205330552U CN 205330552 U CN205330552 U CN 205330552U CN 201521119778 U CN201521119778 U CN 201521119778U CN 205330552 U CN205330552 U CN 205330552U
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China
Prior art keywords
horizontal well
packer
oil
flow string
horizontal
Prior art date
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Active
Application number
CN201521119778.0U
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Chinese (zh)
Inventor
刘海军
张昊
王伟
于宏超
邱家友
王楠
赵海勇
王继
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Xi'an Science And Energy Equipment Co Ltd
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Xi'an Science And Energy Equipment Co Ltd
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Priority to CN201521119778.0U priority Critical patent/CN205330552U/en
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Abstract

The utility model belongs to oil development borehole operation flow string, in particular to multi -functional flow string of horizontal well. Multi -functional flow string of horizontal well includes oil pipe and overlaps in proper order and establish last oil -well pump, bottom valve, packer, ball seat, the screen pipe of oil pipe and be used for plugging up oil pipe's plug, the packer sets up at the horizontal section. The utility model discloses a flow string is an integral tubular column, only needs just income below can of tubular column, simultaneously the utility model discloses can play overflow, prevent spouting, the effect of draining.

Description

Horizontal well multifunctional production tubing string
Technical field
This utility model belongs to oil exploitation underground work flow string, particularly to a kind of horizontal well multifunctional production tubing string。
Background technology
At present, in oilfield exploitation procedure, horizontal well is after production after a while, the High water cut production phase will soon be entered, because the anisotropic property on stratum, and the factor such as the imperfection of completion technique application and profit characteristic, horizontal well water cone can be caused to occur too early, thus causing to produce substantial amounts of water for cost to realize the production of oil gas。
In prior art, production pipe in horizontal post does not have good packer as kit, and mechanical packer sets difficulty at horizontal segment, and hydraulic packer cannot set because of the existence of tubing pump stationary balls;Prior art lacks and effectively processes means, cause that oil well is in High water cut production status, affect the recovery ratio of oil well control reserve part, thus the overall recovery ratio in remote-effects oil field, the final economic benefit of individual well and the development benefit in oil field is made to decline, and the packer life-span now used is short, and slips anchoring is unreliable。
Summary of the invention
This utility model embodiment provides a kind of horizontal well multifunctional production tubing string, the effect of stream, blowout prevention, draining can be simultaneously worked as, solve again in horizontal well production process, there is packer life-span High water cut problem short, long-term, improve the production efficiency in oil field, reduce the discharge capacity of the production of formation water, process and sewage, thus improving overall recovery ratio and the economic benefit in oil field。
The technical solution of the utility model is:
Horizontal well multifunctional production tubing string, including oil pipe and be sequentially sleeved at the oil well pump on described oil pipe, bottom valve, packer, horizontal well ball seat, screen casing and for blocking the plug of described oil pipe, described horizontal well ball seat rear portion arranges pressure cover, steel ball is positioned at horizontal well ball seat, arranging spring between pressure cover and steel ball, described packer is arranged on net horizontal section。
Described packer is Hydraulic Double anchor packer, and slips is made up of alloy material。
Described bottom valve is multifunctional foot valve, and oil well pump lower end is connected with multifunctional foot valve upper end。
The beneficial effects of the utility model are:
1, flow string of the present utility model is a monoblock type tubing string, only needs one-trip string just can enter below;
2. flow string of the present utility model can simultaneously work as the effect of stream, blowout prevention, draining;
3. the Hydraulic Double anchor packer that flow string of the present utility model uses, slips is made up of alloy material, it is possible to hold high upper and lower pressure reduction, extension tube column life;
4. flow string of the present utility model is used the ball seat aiming at horizontal well design, it is ensured that the reliable and safety set。
Accompanying drawing explanation
Fig. 1 is tubular column structure schematic diagram of the present utility model。
Fig. 2 is Hydraulic Double slips packer slip structural representation。
Fig. 3 is horizontal well ball socket structure schematic diagram。
1 oil pipe 2 oil well pump 3 multifunctional foot valve 4 sleeve pipe 5 Hydraulic Double anchor packer
6 steel ball 7 horizontal well ball seat 8 screen casing 9 plug 10 spring 11 slips 12 pressure covers。
Detailed description of the invention
Horizontal well multifunctional production tubing string, including oil pipe 1 and be sequentially sleeved at the oil well pump 2 on described oil pipe 1, multifunctional foot valve 3, Hydraulic Double anchor packer 5, horizontal well ball seat 7, screen casing 8 and for blocking the plug 9 of described oil pipe 1, described horizontal well ball seat 7 rear portion arranges pressure cover 12, steel ball 6 is positioned at horizontal well ball seat 7, between pressure cover 12 and steel ball 6, spring 10 is set, described oil well pump 2 lower end is connected with multifunctional foot valve 3 upper end, and described Hydraulic Double anchor packer 5, horizontal well ball seat 7, screen casing 8 and plug 9 are arranged on net horizontal section。
All parts is connected according to structural representation, the formula that forms a whole flow string, and the position that G.I.H is specified, now multifunctional foot valve 3 is in open mode, suppress in tubing string, building the pressure makes Hydraulic Double anchor packer 5 set, after packer normally sets, utilize and under sucker rod, enter oil well pump 2 plunger, light pressure multifunctional foot valve 3, make it close, play the effect of stationary balls 6, when needing also exist for draining and blowout prevention, operation sucker rod is light pressure multifunctional foot valve 3 alternately so that it is be in the functional status of draining or blowout prevention。
Finally should be noted that: above example is only in order to illustrate that the technical solution of the utility model is not intended to limit;Although this utility model being described in detail with reference to preferred embodiment, those of ordinary skill in the field are it is understood that still can modify to detailed description of the invention of the present utility model or portion of techniques feature carries out equivalent replacement;Without deviating from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that this utility model is claimed。

Claims (3)

1. horizontal well multifunctional production tubing string, it is characterized in that, including oil pipe and be sequentially sleeved at the oil well pump on described oil pipe, bottom valve, packer, horizontal well ball seat, screen casing and for blocking the plug of described oil pipe, described horizontal well ball seat rear portion arranges pressure cover, steel ball is positioned at horizontal well ball seat, arranging spring between pressure cover and steel ball, described packer is arranged on net horizontal section。
2. horizontal well multifunctional production tubing string according to claim 1, it is characterised in that described packer is Hydraulic Double anchor packer, and slips is made up of alloy material。
3. horizontal well multifunctional production tubing string according to claim 1, it is characterised in that described bottom valve is multifunctional foot valve, and oil well pump lower end is connected with multifunctional foot valve upper end。
CN201521119778.0U 2015-12-30 2015-12-30 Multi -functional flow string of horizontal well Active CN205330552U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521119778.0U CN205330552U (en) 2015-12-30 2015-12-30 Multi -functional flow string of horizontal well

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201521119778.0U CN205330552U (en) 2015-12-30 2015-12-30 Multi -functional flow string of horizontal well

Publications (1)

Publication Number Publication Date
CN205330552U true CN205330552U (en) 2016-06-22

Family

ID=56313520

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201521119778.0U Active CN205330552U (en) 2015-12-30 2015-12-30 Multi -functional flow string of horizontal well

Country Status (1)

Country Link
CN (1) CN205330552U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111188590A (en) * 2020-01-06 2020-05-22 陕西隆基斯特石油科技有限公司 Plugging integrated efficient water plugging pipe column and oil extraction method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111188590A (en) * 2020-01-06 2020-05-22 陕西隆基斯特石油科技有限公司 Plugging integrated efficient water plugging pipe column and oil extraction method

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