CN2923997Y - Cocentric tube gas-lifting operation tube - Google Patents

Cocentric tube gas-lifting operation tube Download PDF

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Publication number
CN2923997Y
CN2923997Y CN 200620200573 CN200620200573U CN2923997Y CN 2923997 Y CN2923997 Y CN 2923997Y CN 200620200573 CN200620200573 CN 200620200573 CN 200620200573 U CN200620200573 U CN 200620200573U CN 2923997 Y CN2923997 Y CN 2923997Y
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CN
China
Prior art keywords
tube
cylindrical shell
gaslift
gas lift
valve seat
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 - Lifetime
Application number
CN 200620200573
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Chinese (zh)
Inventor
田相明
王俊
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.)
XINJIANG PETROLEUM ADMINISTRATION OIL-PRODUCTION TECHNOLOGY INST
Original Assignee
XINJIANG PETROLEUM ADMINISTRATION OIL-PRODUCTION TECHNOLOGY INST
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 XINJIANG PETROLEUM ADMINISTRATION OIL-PRODUCTION TECHNOLOGY INST filed Critical XINJIANG PETROLEUM ADMINISTRATION OIL-PRODUCTION TECHNOLOGY INST
Priority to CN 200620200573 priority Critical patent/CN2923997Y/en
Application granted granted Critical
Publication of CN2923997Y publication Critical patent/CN2923997Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relating to a controlling mechanical device of water injection and wellhead production is a tool barrel of gas lift concentric barrel. The device includes a coupling, a barrel body, an inner pipe seal barrel, a gas lift valve seat, an inner pipe coupling and an inner pipe short segment. The coupling is arranged at the top end of the barrel body, the gas lift valve seat is arranged at the middle part of the barrel body. The inner pipe seal barrel is fixedly arranged inside of the barrel body, between which an annular gas lift channel is formed from the space. A plurality of gas lift holes arranged on the barrel body, inner pipe seal barrel and gas lift valve seat communicate the inner pipe seal barrel with the barrel body from inside to outside. The utility model is reasonable and compact in structure. The application of the gas lift concentric barrel can solve the problems of that: the existing scheme of general gas lift can not exploit the oil layer of lower pressure, layered gas lift can be realized and the potential oil layers of lower pressure can be exploited to reach the effect of increasing output.

Description

Concentric tube gaslift seating nipple
One, technical field:
The utility model relates to oil-field flooding and production wellhead production operation control mechanical device, is a kind of concentric tube gaslift seating nipple.
Two, background technology:
Because oil well can make stratum energy reduce because of the prolongation of production time, it is a kind of effective prolongation oil well production time method that offset well high-pressure natural gas injection low energy well is carried out gas-lift production, but the gas-lift production of being carried out before this all is to carry out general gaslift, promptly no matter what series of strata oil well has, also whether no matter there are differences between series of strata, therefore general gas lift method often can not be brought into play the effect of lower pressure oil reservoir.
Three, summary of the invention:
The utility model provides a kind of concentric tube gaslift seating nipple, overcome the deficiency of above-mentioned prior art, it has solved the problem that existing general gas lift method can not be brought into play the effect of lower pressure oil reservoir, can realize the layering gaslift, with the relatively low but still oil reservoir that has the potential to be tapped of liberation pressure, reach the purpose of volume increase.
The technical solution of the utility model realizes by following measure: a kind of concentric tube gaslift seating nipple, it comprises box cupling, cylindrical shell, interior seal of tube tube, gaslift valve seat, interior pipe box cupling and interior pipe pipe nipple, the cylindrical shell upper end is equipped with box cupling, there is the gaslift valve seat at the cylindrical shell middle part, interior seal of tube tube be fixedly mounted in the cylindrical shell and and cylindrical shell between form annular gaslift passage, on cylindrical shell, interior seal of tube tube and gaslift valve seat, have the gaslift hole to be communicated with in the interior seal of tube tube with outside the cylindrical shell.
Be further optimization and/or improvements below to above-mentioned technical solutions of the utility model:
Pipe pipe nipple in seal of tube tube lower end can be connected to by interior pipe box cupling in above-mentioned.
In above-mentioned, between pipe pipe nipple and the cylindrical shell pipe nipple centering ring can be installed.
The lower end that cylindrical shell can be longer than in the lower end of pipe pipe nipple in above-mentioned.
Above-mentioned cylindrical shell is outer can the gas lift valve guard housing that can protect the gaslift valve seat.
But above-mentioned cylindrical shell and interior seal of tube tube decentraction are the eccentric type structure.
Lug can be arranged on the seal of tube tube in above-mentioned and be fixed on the cylindrical shell, on lug, cylindrical shell and gaslift valve seat, have the gaslift hole to be communicated with in the interior seal of tube tube with outside the cylindrical shell.
Can there be concave station upper end at above-mentioned cylindrical shell, and there is the boss on the concave station that can hang over cylindrical shell the upper end of interior seal of tube tube.
The utility model reasonable and compact in structure, utilize this concentric tube gaslift seating nipple can solve the problem that existing general gas lift method can not be brought into play the effect of lower pressure oil reservoir, can realize the layering gaslift,, reach the effect of volume increase with the relatively low but still oil reservoir that has the potential to be tapped of liberation pressure.
Four, description of drawings:
Accompanying drawing 1 partly cuts open and local sectional structure schematic diagram for the master of the utility model most preferred embodiment looks,
Accompanying drawing 2 is overlooked the structure for amplifying schematic diagram for accompanying drawing 1,
Accompanying drawing 3 for the A-A of accompanying drawing 1 to analysing and observe the structure for amplifying schematic diagram,
Coding in the accompanying drawing is respectively: 1 is box cupling, and 2 is cylindrical shell, and 3 is interior seal of tube tube, and 4 are the gaslift valve seat, and 5 is interior pipe box cupling, and 6 is interior pipe pipe nipple, and 7 is the gas lift valve guard housing, and 8 is the pipe nipple centering ring.
Five, the specific embodiment:
The utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
Shown in accompanying drawing 1 to 3, this concentric tube gaslift seating nipple comprises box cupling 1, cylindrical shell 2, interior seal of tube tube 3, gaslift valve seat 4, interior pipe box cupling 5 and interior pipe pipe nipple 6, cylindrical shell 2 upper ends are equipped with box cupling 1, there is gaslift valve seat 4 at cylindrical shell 2 middle parts, interior seal of tube tube 3 be fixedly mounted in the cylindrical shell 2 and and cylindrical shell 2 between form annular gaslift passage, on cylindrical shell 2, interior seal of tube tube 3 and gaslift valve seat 4, have the gaslift hole to be communicated with in the interior seal of tube tube 3 with outside the cylindrical shell 2.
Can according to actual needs above-mentioned concentric tube gaslift seating nipple be made further optimization and/or improvements:
For the ease of protection gaslift valve seat and gas lift valve mounted thereto, as shown in Figure 1, the gas lift valve guard housing 7 that can protect gaslift valve seat 4 is arranged outside cylindrical shell 2.
In order further to improve performance of the present utility model: shown in accompanying drawing 1 to 3, pipe pipe nipple 6 in interior seal of tube tube 3 lower ends are connected to by interior pipe box cupling 5; Between interior pipe pipe nipple 6 and cylindrical shell 2, pipe nipple centering ring 8 is installed; Pipe wrench is used in the lower end that cylindrical shell 2 is longer than in the lower end of interior pipe pipe nipple 6 when being convenient to construct like this; Shown in accompanying drawing 1 to 3, cylindrical shell 2 is the eccentric type structure with interior seal of tube tube 3 decentraction, can reach largest optimization like this; Shown in accompanying drawing 1 to 3, on the interior seal of tube tube 3 lug is arranged and be fixed on the cylindrical shell 2, the gaslift hole is arranged with being communicated with in the interior seal of tube tube 3 with outside the cylindrical shell 2 on lug, cylindrical shell 2 and gaslift valve seat 4, can improve anti-scouring capability like this; Shown in attached Fig. 1 and 2, in the upper end of cylindrical shell 2 concave station is arranged, there is the boss on the concave station that can hang over cylindrical shell 2 upper end of interior seal of tube tube 3, so not only can play positioning action but also can make interior seal of tube tube 3 bear bigger suspended load.
In the utility model: box cupling, interior pipe box cupling, interior pipe pipe nipple, pipe nipple centering ring and gas lift valve all are to adopt prior art.
Above technical characterictic has constituted most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
The course of work of the present utility model is as follows: before using the utility model, at first on the gaslift valve seat gas lift valve is installed.When needs carry out the concentric tube gaslift, be lowered to the outer tube of band packer and common gaslift seating nipple and the utility model concentric tube gaslift seating nipple, interior pipe gradation is lowered to, effective intubate sealing in pipe and the bottom in the top, concentric tube gaslift well head is joined on ground.The above upper strata of outer tube packer is carried out gaslift by common gas lift valve by annular space between outer tube and interior pipe, the following lower floor of outer tube packer carries out gaslift by the utility model concentric tube gaslift seating nipple, inner and outer pipes is in an independently pressure system respectively, has avoided the interlayer interference of different pressures system.

Claims (10)

1, a kind of concentric tube gaslift seating nipple, it is characterized in that comprising box cupling, cylindrical shell, interior seal of tube tube, gaslift valve seat, interior pipe box cupling and interior pipe pipe nipple, the cylindrical shell upper end is equipped with box cupling, there is the gaslift valve seat at the cylindrical shell middle part, interior seal of tube tube be fixedly mounted in the cylindrical shell and and cylindrical shell between form annular gaslift passage, on cylindrical shell, interior seal of tube tube and gaslift valve seat, have the gaslift hole to be communicated with in the interior seal of tube tube with outside the cylindrical shell.
2, concentric tube gaslift seating nipple according to claim 1, pipe pipe nipple in seal of tube tube lower end is connected to by interior pipe box cupling in it is characterized in that.
3, concentric tube gaslift seating nipple according to claim 2 is equipped with the pipe nipple centering ring between pipe pipe nipple and the cylindrical shell in it is characterized in that.
4, concentric tube gaslift seating nipple according to claim 3, the lower end that cylindrical shell is longer than in the lower end of pipe pipe nipple in it is characterized in that.
5, according to claim 1 or 2 or 3 or 4 described concentric tube gaslift seating nipples, it is characterized in that cylindrical shell has the gas lift valve guard housing that can protect the gaslift valve seat outward.
6,, it is characterized in that cylindrical shell and interior seal of tube tube decentraction are the eccentric type structure according to claim 1 or 2 or 3 or 4 described concentric tube gaslift seating nipples.
7, concentric tube gaslift seating nipple according to claim 5 is characterized in that cylindrical shell and interior seal of tube tube decentraction are the eccentric type structure.
8, according to claim 1 or 2 or 3 or 4 described concentric tube gaslift seating nipples, it is characterized in that on the interior seal of tube tube lug being arranged and being fixed on the cylindrical shell, on lug, cylindrical shell and gaslift valve seat, there is the gaslift hole to be communicated with in the interior seal of tube tube with outside the cylindrical shell.
9, concentric tube gaslift seating nipple according to claim 7 is characterized in that on the interior seal of tube tube lug being arranged and being fixed on the cylindrical shell, has the gaslift hole to be communicated with in the interior seal of tube tube with outside the cylindrical shell on lug, cylindrical shell and gaslift valve seat.
10, concentric tube gaslift seating nipple according to claim 9 is characterized in that there is concave station the upper end of cylindrical shell, and there is the boss on the concave station that can hang over cylindrical shell the upper end of interior seal of tube tube.
CN 200620200573 2006-06-29 2006-06-29 Cocentric tube gas-lifting operation tube Expired - Lifetime CN2923997Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620200573 CN2923997Y (en) 2006-06-29 2006-06-29 Cocentric tube gas-lifting operation tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620200573 CN2923997Y (en) 2006-06-29 2006-06-29 Cocentric tube gas-lifting operation tube

Publications (1)

Publication Number Publication Date
CN2923997Y true CN2923997Y (en) 2007-07-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200620200573 Expired - Lifetime CN2923997Y (en) 2006-06-29 2006-06-29 Cocentric tube gas-lifting operation tube

Country Status (1)

Country Link
CN (1) CN2923997Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113530491A (en) * 2020-04-15 2021-10-22 中国石油化工股份有限公司 Cable-passing packer, same-well production and injection process pipe column and same-well production and injection system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113530491A (en) * 2020-04-15 2021-10-22 中国石油化工股份有限公司 Cable-passing packer, same-well production and injection process pipe column and same-well production and injection system
CN113530491B (en) * 2020-04-15 2023-11-17 中国石油化工股份有限公司 Cable packer, same-well production and injection process pipe column and same-well production and injection system

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C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20070718

EXPY Termination of patent right or utility model