CN217001953U

CN217001953U - Coal bed gas well downward mining auxiliary device

Info

Publication number: CN217001953U
Application number: CN202220494455.3U
Authority: CN
Inventors: 里群; 韩彦龙; 郭保祥
Original assignee: Gu'an Guokan Petroleum Technology Co ltd
Current assignee: Gu'an Guokan Petroleum Technology Co ltd
Priority date: 2022-03-07
Filing date: 2022-03-07
Publication date: 2022-07-19
Anticipated expiration: 2032-03-07

Abstract

The utility model discloses a lower-drainage auxiliary device of a coal-bed gas well, which comprises an oil pumping pipe, wherein the bottom of the oil pumping pipe is connected with a partial-production and separate-production pump, an auxiliary mechanism is arranged outside the partial-production and separate-production pump, the auxiliary mechanism comprises an annular shell, cushion blocks are uniformly distributed on the inner side wall of the annular shell, a first electric cylinder is mounted on the side wall of the cushion block and penetrates through the inner side wall of the annular shell, the end head of the first electric cylinder is connected with an inner clamping block, second electric cylinders are uniformly distributed on the circumference inside the annular shell, the second electric cylinders penetrate through the outer side wall of the annular shell, the end head of the second electric cylinder is connected with an outer pressing block, a signal receiver is mounted inside the annular shell, a PLC (programmable logic controller) is arranged inside the annular shell beside the signal receiver, and a top cover is mounted at the top of the annular shell through bolts. This coal bed gas well downward mining auxiliary device can effectually fix the branch and adopt the branch pump, reduces the branch and adopt the vibration range of branch pump, guarantees the normal use of branch and adopt the branch pump, and then improves the work efficiency of branch and adopt the branch pump, increases the exploitation volume.

Description

Coal bed gas well downward-discharging extraction auxiliary device

Technical Field

The utility model relates to the technical field of coal bed gas exploitation, in particular to a lower-drainage auxiliary device of a coal bed gas well.

Background

The coal bed gas is taken as an important new energy source, refers to hydrocarbon gas associated between coal beds, mainly takes methane as main raw material, belongs to unconventional natural gas, mainly takes hydrocarbon gas which is mainly adsorbed on the surfaces of coal matrix particles and partially dissociated in coal pores or dissolved in coal bed water, is an associated mineral resource of coal, and is a clean and high-quality energy source and chemical raw material which is grown internationally in nearly twenty years.

The existing coal bed gas is exploited in the coal bed well, and because the inner diameter of the coal bed well is larger than the outer diameter of the separate mining and separating pump, the separate mining and separating pump is mostly freely arranged in the coal bed well, when the separate mining and separating pump works, vibration is easily generated when fluid or gas is conveyed, the vibration affects the normal use of the separate mining and separating pump, the work efficiency of the separate mining and separating pump is reduced, and further the exploitation amount is reduced. Therefore, the coal bed gas well lower mining auxiliary device is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a coal bed gas well downward mining auxiliary device to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

design coal bed gas well lower drainage auxiliary device, including taking out oil pipe, it is connected with branch and adopts the branch pump to take out oil pipe bottom, it is equipped with complementary unit to divide to adopt the pump outside, complementary unit includes the annular shell, the equipartition has the cushion on the annular shell inside wall, install first electric jar on the cushion lateral wall, and first electric jar runs through the inside wall of annular shell, first electric jar end is connected with interior clamp splice, the annular shell is inside to be the circumference equipartition and to have the second electric jar, and the second electric jar runs through the lateral wall of annular shell, the second electric jar end is connected with outer briquetting, annular shell internally mounted has signal receiver, is located the inside PLC controller that is equipped with of annular shell on signal receiver next door, the top cap is installed through the bolt in annular shell top.

Preferably, the outer part of the joint of the oil pumping pipe and the separate production and separation pump is provided with a mounting block, and the mounting block is fixed at the top of the separate production and separation pump.

Preferably, a rubber sealing ring is arranged at the joint between the top cover and the annular shell.

Preferably, two steel grommets are mounted on two sides of the top cover. And steel cables are arranged in the steel grommets.

Compared with the prior art, the utility model has the beneficial effects that: this coal bed gas well downward production auxiliary device, through setting up the annular shell, first electric jar, interior clamp splice, the second electric jar, outer briquetting, can inwards press from both sides tight branch production knockout pump shell through the clamp splice in the drive of first electric jar, extrude the coal bed wall of a well through the outer briquetting of second electric jar drive, and then establish the annular shell cover between branch production knockout pump and the coal bed wall of a well, reach supplementary fixed branch production knockout pump, avoid the effect of branch production knockout pump vibration, make this coal bed gas well downward production auxiliary device, structural design is reasonable, the customization cost is not high, can effectual fixed branch production knockout pump, reduce branch production knockout pump vibration amplitude, guarantee the normal use of branch production knockout pump, and then improve the work efficiency of branch production knockout pump, increase the exploitation volume.

Drawings

FIG. 1 is a front sectional view of a coal bed gas well lower mining auxiliary device according to the present invention;

FIG. 2 is a sectional top view of the coal bed gas well lower mining auxiliary device provided by the utility model;

fig. 3 is a structural top view of the coal bed gas well lower mining auxiliary device provided by the utility model.

In the figure: the device comprises an oil pumping pipe 1, a mounting block 2, a separate production and separate production pump 3, an auxiliary mechanism 4, an annular shell 401, a cushion block 402, a first electric cylinder 403, an inner clamping block 404, a second electric cylinder 405, an outer pressing block 406, a signal receiver 407, a PLC controller 408, a top cover 409, a bolt 410, a steel cable ring 411 and a steel cable 412.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the coal bed gas well bottom mining auxiliary device comprises an oil pumping pipe 1, wherein a sub-mining and sub-pumping pump 3 is connected to the bottom of the oil pumping pipe 1, the sub-mining and sub-pumping pump 3 is fixed to the bottom of the oil pumping pipe 1 in a threaded mode, the strength of the sub-mining and sub-pumping pump 3 can be guaranteed, the stability of the sub-mining and sub-pumping pump 3 can be improved, the sub-mining and sub-pumping pump 3 can be disassembled easily, the maintenance or replacement of the sub-mining and sub-pumping pump 3 is facilitated, an auxiliary mechanism 4 is arranged outside the sub-mining and sub-pumping pump 3, the auxiliary mechanism 4 comprises an annular shell 401, cushion blocks 402 are evenly distributed on the inner side wall of the annular shell 401, the cushion blocks 402 are fixed to the inner wall of the annular shell 401 in a welding mode, the stability of the cushion blocks 402 can be guaranteed, a first electric cylinder 403 is installed on the side wall of the cushion blocks 402, the first electric cylinder 403 penetrates through the inner side wall of the annular shell 401, the first electric cylinder 403 is fixed to the side wall of the cushion block 402 in a bolt mode, the stability of the first electric cylinder 403 can be guaranteed, the electric cylinder can be easily disassembled, so that the first electric cylinder 403 can be conveniently maintained or replaced, the end of the first electric cylinder 403 is connected with an inner clamping block 404, the inner clamping block 404 is fixed at the extending end of the first electric cylinder 403 through a bolt, the inner clamping block 404 can be driven to freely extend and retract through the first electric cylinder 403, second electric cylinders 405 are uniformly distributed in the annular shell 401 in the circumferential direction, the second electric cylinders 405 penetrate through the outer side wall of the annular shell 401, the second electric cylinders 405 are fixed in the annular shell 401 in a threaded mode, the strength of the second electric cylinders 405 can be guaranteed, the electric cylinder can be easily disassembled, so that the second electric cylinders 405 can be conveniently maintained or replaced, the first electric cylinder 403 and the second electric cylinders 405 are electric cylinders which are subjected to resistance failure, when the resistance reaches a certain value, the first electric cylinder 403 and the second electric cylinder 405 stop extending continuously, the terminals of the first electric cylinder 403 and the second electric cylinder 405 are externally connected with a storage battery and a PLC 408 through wires, the extension and retraction of the first electric cylinder 403 and the second electric cylinder 405 are controlled through a PLC (programmable logic controller) 408, the storage battery is arranged inside the annular shell 401, the end of the second electric cylinder 405 is connected with an outer pressing block 406, a signal receiver 407 is arranged inside the annular shell 401, the PLC 408 is arranged inside the annular shell 401 beside the signal receiver 407, the PLC 408, the first electric cylinder 403 and the second electric cylinder 405 are electrically connected, and the top of the annular shell 401 is provided with a top cover 409 through a bolt 410;

specifically, the auxiliary mechanism 4 is sleeved outside the separate-production separation pump 3 through the annular shell 401, the separate-production separation pump 3 is arranged at the bottom of the coal seam well through the oil pumping pipe 1, the auxiliary mechanism 4 is arranged outside the separate-production separation pump 3 at the bottom through the steel cable 412, the control signal is transmitted through the top control device, the signal receiver 407 transmits the control signal to the PLC controller 408 through the signal receiver 407, the PLC controller 408 controls the first electric cylinder 403 and the second electric cylinder 405 to extend out respectively, the inner clamping block 404 is driven by the first electric cylinder 403 to clamp the separate-production separation pump 3, the outer clamping block 406 is driven by the second electric cylinder 405 to press the wall of the coal seam well, the separate-production separation pump 3 is fixed through the auxiliary mechanism 4, and vibration of the separate-production separation pump 3 can be effectively reduced.

The working principle, this coal bed gas well lower drainage auxiliary device is at the in-process that uses: the auxiliary mechanism 4 is sleeved outside the separate-production separation pump 3 through the annular shell 401, the separate-production separation pump 3 is arranged at the bottom of a coal seam well through the oil pumping pipe 1, the auxiliary mechanism 4 is arranged outside the separate-production separation pump 3 at the bottom through the steel cable 412, control signals are transmitted through the top control device, the signal receiver 407 transmits the control signals to the PLC controller 408, the PLC controller 408 controls the first electric cylinder 403 and the second electric cylinder 405 to extend out respectively, the inner clamping block 404 is driven by the first electric cylinder 403 to clamp the separate-production separation pump 3, the outer clamping block 406 is driven by the second electric cylinder 405 to compress the wall of the coal seam well, the separate-production separation pump 3 is fixed through the auxiliary mechanism 4, and vibration of the separate-production separation pump 3 can be effectively reduced. Make this coal bed gas well lower extraction auxiliary device, structural design is reasonable, and the customization cost is not high, can effectually fix the branch and adopt the branch pump, reduces branch and adopt the pump vibration range, guarantees the normal use of branch and adopt the branch pump, and then improves the work efficiency of branch and adopt the branch pump, increases the exploitation volume.

Furthermore, the outside of the joint of the oil pumping pipe 1 and the sub-production and sub-discharge pump 3 is provided with the mounting block 2, the mounting block 2 is fixed at the top of the sub-production and sub-discharge pump 3, the connection between the sub-production and sub-discharge pump 3 and the oil pumping pipe 1 can be reinforced through the mounting block 2, and the normal operation of the sub-production and sub-discharge pump 3 is ensured.

Further, a rubber sealing ring is arranged at the connecting position between the top cover 409 and the annular shell 401, the rubber sealing ring can seal a gap between the annular shell 401 and the top cover 409, water is further prevented from entering the annular shell 401, and stable operation of components inside the annular shell 401 is protected.

Furthermore, two steel cable rings 411 are mounted on two sides of the top cover 409, a steel cable 412 is arranged inside each steel cable ring 411, and the auxiliary traction mechanism 4 can be conveniently pulled to move up and down through the steel cable 412.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Coal bed gas well lower drainage auxiliary device, including taking out oil pipe (1), its characterized in that: the bottom of the oil pumping pipe (1) is connected with a separate-production separation pump (3), an auxiliary mechanism (4) is arranged outside the separate-production separation pump (3), the auxiliary mechanism (4) comprises an annular shell (401), cushion blocks (402) are uniformly distributed on the inner side wall of the annular shell (401), a first electric cylinder (403) is mounted on the side wall of the cushion block (402), the first electric cylinder (403) penetrates through the inner side wall of the annular shell (401), the end of the first electric cylinder (403) is connected with an inner clamping block (404), second electric cylinders (405) are uniformly distributed on the inner portion of the annular shell (401) in the circumferential direction, the second electric cylinders (405) penetrate through the outer side wall of the annular shell (401), the end of each second electric cylinder (405) is connected with an outer pressing block (406), a signal receiver (407) is mounted inside the annular shell (401), and a PLC (408) is arranged inside the annular shell (401) beside the signal receiver (407), and a top cover (409) is installed at the top of the annular shell (401) through a bolt (410).

2. The coal bed gas well bottom mining auxiliary device of claim 1, characterized in that: the oil pumping pipe (1) is connected with the branch production and separation pump (3) through the installation block (2), and the installation block (2) is fixed to the top of the branch production and separation pump (3).

3. The coal-bed gas well lower mining auxiliary device as claimed in claim 1, characterized in that: and a rubber sealing ring is arranged at the joint between the top cover (409) and the annular shell (401).

4. The coal bed gas well bottom mining auxiliary device of claim 1, characterized in that: two steel grommets (411) are installed on two sides of the top cover (409), and a steel cable (412) is arranged inside each steel grommet (411).