CN212003132U

CN212003132U - New process pipe column for water drainage and gas production

Info

Publication number: CN212003132U
Application number: CN202020625042.5U
Authority: CN
Inventors: 翟志军
Original assignee: Tianjin Wante Energy Technology Co ltd
Current assignee: Tianjin Wante Energy Technology Co ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2020-11-24
Anticipated expiration: 2030-04-23

Abstract

The utility model discloses a new technology tubular column of drainage gas production, including fixed pipe, the inside activity of fixed pipe is provided with the installation pipe, the middle part of installation intraduct is middle upper end fixed all around is provided with first isolation packer, first isolation packer outside is provided with gaseous one way channel between well upper end all around and the installation intraduct. The utility model discloses an at installation outside upper end of pipe and lower extreme seted up a plurality of gas passage entry and gas outlet channel all around, and install and be provided with a gas one-way channel that can control between inside first isolation packer all around of installation pipe and the installation pipe, and gas passage entry and gas outlet channel all are located inside the gas one-way channel, it is inside to go into oil pipe under the whole at the during operation, and the gas one-way channel that can control extends to the shaft bottom, and mention the water in shaft bottom, thereby resume production, because the gas lift is thorough, corrosive gas produces from oil pipe, thereby annular space potential safety hazard has been eliminated.

Description

New process pipe column for water drainage and gas production

Technical Field

The utility model relates to a drainage gas production technical field specifically is a new technology tubular column of drainage gas production.

Background

The traditional drainage gas production process is that holes are drilled on an oil pipe body above a packer, gas is injected from an annular space to perform gas lift drainage, and then production is recovered;

the traditional new process pipe column for water drainage and gas production has the following defects;

at present, the method is limited by the drilling depth, only water above the packer (precisely, the drilling position) can be discharged, and a section of oil pipe below the packer is usually arranged, the water in the section of oil pipe cannot be lifted out, so that the production of a gas well is influenced, meanwhile, corrosive gas can reach an annular space through a gas lift channel, so that the upper casing is corroded, and the safety of the gas well is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a new technology tubular column of drainage gas production to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a new technology tubular column of drainage gas production, includes fixed pipe, the inside activity of fixed pipe is provided with the installation pipe, the middle part of installation intraductal portion is fixed all around in the middle part is fixed and is provided with first isolation packer, first isolation packer outside is provided with gaseous one-way channel all around between the upper end and the installation intraduct, first isolation packer outside is fixed all around the middle part is provided with flexible compensation arrangement, first isolation packer lower extreme is fixed all around and is provided with the extension seal assembly, the extension seal assembly lower extreme is fixed all around and is provided with the ball seat of suppressing, the outside middle part of installation pipe is fixed all around and is set up the.

Preferably, the upper end and the lower end of the periphery of the outer part of the installation pipe are respectively provided with a plurality of gas channel inlets and gas outlet channels.

Preferably, a sealing mechanism is fixedly arranged between the completion packer and the installation pipe.

Preferably, a second isolation packer is fixedly arranged around the middle lower end outside the extension sealing assembly.

Preferably, sealing layers are fixedly arranged between the first isolation packer, the second isolation packer and the periphery inside the installation pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a have seted up a plurality of gas channel entry and gas outlet channel around installation outside pipe upper end and lower extreme, and install and be provided with a controllable gas one-way channel between installation pipe inside first isolation packer all around and the installation pipe, and gas channel entry and gas outlet channel all are located inside the gas one-way channel, will wholly drop into the oil pipe inside during operation, and the gas one-way channel that can control extends to the shaft bottom, and lift the water in the shaft bottom, thereby resume production, because the gas lift is thorough, corrosive gas produces from the oil pipe, thereby eliminated annular space potential safety hazard;

2. the utility model discloses flexible compensation arrangement lower extreme is fixed all around simultaneously and is provided with the extension seal assembly, and flexible compensation arrangement outside upper end all around and the installation between the pipe fixed be provided with first isolation packer, and extend the seal assembly outside lower extreme all around and the installation between the pipe fixed be provided with the second and keep apart the packer, be convenient for like this increase the inside leakproofness of gaseous one-way channel.

Drawings

FIG. 1 is a schematic view of the whole and cross-sectional structure of a new process pipe column for water drainage and gas production of the present invention;

fig. 2 is a structural diagram of a fixed pipe and an installation pipe in the new process pipe column for water drainage and gas production.

In the figure: 1. a fixed tube; 2. installing a pipe; 3. a first isolation packer; 4. a gas channel inlet; 5. a gas one-way passage; 6. a telescopic compensation device; 7. a completion packer; 8. an extension seal assembly; 9. a gas outlet passage; 10. a second isolation packer; 11. and pressing the ball seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a new technology tubular column of drainage gas production, including fixed pipe 1, the inside activity of fixed pipe 1 is provided with installation pipe 2, the inside middle part of installation pipe 2 is middle upper end fixed mounting all around has first isolation packer 3, first isolation packer 3 outside is middle upper end all around and installation pipe 2 is inside between be provided with gaseous one way channel 5, first isolation packer 3 outside middle part fixed mounting all around has

flexible compensation arrangement

6, 3 lower extremes of first isolation packer fixed mounting all around have the sealed assembly 8 of extension, 8 lower extremes of the sealed assembly of extension have all around fixed mounting and suppress

ball seat

11, 2 outside middle parts of installation pipe are fixed mounting well completion packer 7 all around.

A plurality of gas channel inlets 4 and gas outlet channels 9 are respectively arranged at the upper end and the lower end of the periphery of the outer part of the mounting pipe 2, so that liquid can be conveniently discharged through the gas channel inlets 4 and the gas outlet channels 9; a sealing mechanism is fixedly arranged between the completion packer 7 and the installation pipe 2, so that the sealing property of the completion packer 7 is improved when the completion packer is contacted with the installation pipe 2 through the sealing mechanism; the periphery of the middle lower end outside the extension sealing assembly 8 is fixedly provided with a second isolation packer 10, so that the sealing performance of the extension sealing assembly 8 in connection is improved; the sealing layers are fixedly arranged between the first isolation packer 3, the second isolation packer 10 and the periphery of the inner part of the installation pipe 2, and the structure is convenient for increasing the sealing performance of the first isolation packer 3 and the second isolation packer 10 when being connected with the installation pipe 2.

The working principle is as follows: the utility model discloses a set up a plurality of gas channel entry 4 and gas outlet channel 9 around the outside upper end of installation pipe 2 and lower extreme, and install and be provided with a controllable gas one-way channel 5 between installation pipe 2 and the first isolation packer 3 around the installation pipe 2 inside, and gas channel entry 4 and gas outlet channel 9 are all located inside gas one-way channel 5, during operation will wholly drop into the oil pipe inside, and the controllable gas one-way channel 5 extends to the shaft bottom, and lift the water in the shaft bottom, thereby resume production, because the gas lift is thorough, corrosive gas produces from the oil pipe, thereby eliminate annular space potential safety hazard, simultaneously flexible compensation arrangement 6 lower extreme is fixed all around to be provided with extension seal assembly 8, and flexible compensation arrangement 6 outside upper end is fixed all around and is provided with first isolation packer 3 between installation pipe 2, and a second isolation packer 10 is fixedly arranged between the periphery of the lower end outside the extension sealing assembly 8 and the installation pipe 2, so that the sealing property inside the gas one-way channel 5 is increased conveniently.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a new technology tubular column of drainage gas production, includes fixed pipe (1), its characterized in that: the utility model discloses a well completion packer, including fixed pipe (1), installation pipe (2), the inside activity of fixed pipe (1) is provided with installation pipe (2), the middle upper end is fixed around in installation pipe (2) inside middle part is provided with first isolation packer (3), first isolation packer (3) outside is provided with gaseous one way channel (5) all around between upper end and installation pipe (2) inside, first isolation packer (3) outside is fixed all around the middle part is provided with flexible compensation arrangement (6), first isolation packer (3) lower extreme is fixed all around and is provided with extension sealing assembly (8), extension sealing assembly (8) lower extreme is fixed all around and is provided with and suppresses ball seat (11), installation pipe (2) outside middle part is fixed all around and is set up well completion.

2. The new process pipe column for water drainage and gas production according to claim 1, characterized in that: the upper end and the lower end of the periphery of the outer part of the mounting pipe (2) are respectively provided with a plurality of gas channel inlets (4) and gas outlet channels (9).

3. The new process pipe column for water drainage and gas production according to claim 1, characterized in that: and a sealing mechanism is fixedly arranged between the well completion packer (7) and the installation pipe (2).

4. The new process pipe column for water drainage and gas production according to claim 1, characterized in that: and second isolation packers (10) are fixedly arranged around the middle lower end outside the extension sealing assembly (8).

5. The new process pipe column for water drainage and gas production according to claim 4, characterized in that: and sealing layers are fixedly arranged between the first isolation packer (3), the second isolation packer (10) and the periphery of the inside of the installation pipe (2).