CN215860077U

CN215860077U - Novel environment-friendly plug for oil extraction test

Info

Publication number: CN215860077U
Application number: CN202122430406.1U
Authority: CN
Inventors: 孙洪雨
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2022-02-18
Anticipated expiration: 2031-10-09

Abstract

The utility model discloses a novel environment-friendly plug for oil extraction test, which comprises an installation plate and a wedge block, wherein a plug with a through hole in the middle is fixedly installed at the top of the installation plate; the plug is internally slidably provided with a circumferential array of sliding bars, the wedges being driven into the plug to expand the plug and to extend from the interior of the plug against the inner wall of the pipe. The utility model provides a novel environmental protection end cap of oil recovery test, the device is when the shutoff pipeline, packs into the stopper in the pipeline earlier, and the voussoir is driven to the stopper inside and is removed, wedges in the through-hole on the stopper, makes the stopper inflation, can better shutoff pipeline, and can promote the inside slide bar of stopper outwards to move when the voussoir wedges the stopper, makes the slide bar support and leans on the inner wall of pipeline, can play certain fixed action; when the plug needs to be taken out, the wedge block is firstly pulled out from the interior of the plug, the plug shrinks, and the sliding rod leaves the inner wall of the pipeline, so that the plug is convenient to take out.

Description

Novel environment-friendly plug for oil extraction test

Technical Field

The utility model relates to a novel environment-friendly plug for oil extraction test.

Background

The sealing test of the oil well is needed before the development of the oil field, the common test method is a steel wire well testing technology, stratum data can be recorded through the steel wire well testing technology, reliable basis is provided for the determination of the oil well yield stabilizing and increasing measures, and the steel wire well testing technology can also be used for pulling down a well testing instrument through a steel wire. In order to ensure effective sealing of a wellhead, a blowout prevention pipe is usually installed on the wellhead, and the upper end of the blowout prevention pipe is provided with a blowout prevention testing plug.

According to the novel environment-friendly plug for oil extraction testing disclosed in patent No. CN209959206U, comprising a fixed outer ring, wherein the top end of the inner side of the fixed outer ring is fixedly connected with a fixed connecting rod, one end of the fixed connecting rod, which is far away from the fixed outer ring, is fixedly connected with a fixed inner ring, the inner side of the fixed inner ring is fixedly connected with an adjusting head, the bottom of the adjusting head is fixedly connected with a sealing baffle plate, the bottom of the sealing baffle plate is fixedly connected with an upper fixing ring, the bottom of the sealing baffle plate is fixedly connected with a connecting rod, which is positioned in the upper fixing ring, the bottom of the connecting rod is fixedly connected with a gravity block, the bottom of the upper fixing ring is fixedly connected with a limit baffle plate, the bottom of the limit baffle plate is fixedly connected with a lower fixing ring, the inner side of the lower fixing ring is fixedly provided with a reset spring, the end of the reset spring, which is far away from the limit baffle plate, and the inner side of the lower fixing ring is fixedly provided with a movable plate, the top fixedly connected with stand of fly leaf, the bottom fixedly connected with bracing piece of fly leaf, the one end fixedly connected with separation baffle that the fly leaf was kept away from to the bracing piece. The device is through putting into well testing instrument intraductal with seal baffle, then fixed outer loop cover outside the well testing instrument pipe, utilize the rotatory regulation head of instrument to screw up fixed outer loop, thereby make fixed outer loop fixed seal baffle, the separation baffle blocks intraductal liquid preferentially when the well testing instrument is played to the steel wire, the arc design of separation baffle can reduce the striking dynamics of intraductal liquid, reset spring slows down the thrust that the separation baffle received, in time there is a small amount of liquid to pass the separation baffle, limit baffle can the secondary carry out the separation, the weight of end cap is increased soon to gravity, avoid influencing the end cap when separation baffle atress, seal baffle carries out the cubic separation to liquid, guarantee that liquid can not spout, only need rotatory fixed outer loop to change it and maintain when the end cap is impaired, and is simple to operate, and has good leak protection water effect.

The blowout prevention testing plug used at present generally comprises a main body, a pressing cap and a packing, when a steel wire is lifted and lowered in a test, the packing is gradually damaged due to friction of the steel wire, the failure rate is high, and the phenomenon of water leakage often occurs in the process of lifting and lowering an instrument.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel environment-friendly plug for oil extraction testing, which can not only plug a pipe head and prevent liquid leakage, but also can be recycled.

In order to achieve the purpose, the utility model provides a novel environment-friendly plug for oil extraction testing, which comprises an installation plate and a wedge block, wherein the top of the installation plate is fixedly provided with a plug with a through hole in the middle;

the plug is internally slidably provided with a circumferential array of sliding bars, the wedges being driven into the plug to expand the plug and to extend from the interior of the plug against the inner wall of the pipe.

Preferably, the bottom of the mounting plate is fixedly provided with a housing, and the interior of the housing is provided with a driving assembly for driving the wedge block to be wedged into the plug.

Preferably, the driving assembly comprises a knob, a first shaft rod, a worm, a second shaft rod, a worm wheel, a gear and a rack, and the first shaft rod and the second shaft rod are respectively and rotatably arranged inside the shell.

Preferably, one end of the first shaft rod extends to the outer side of the shell and is fixedly provided with a knob, and the first shaft rod is provided with a worm.

Preferably, a worm wheel and a gear are fixedly mounted on the second shaft rod respectively, the worm wheel is meshed with the worm, a sliding groove is formed in the shell, a rack is arranged in the sliding groove in a sliding mode, and the rack is meshed with the gear.

Preferably, the wedge block is fixedly installed at the top of the rack, and a through hole for the wedge block to pass through is formed in the center of the installation plate.

Preferably, the top of the plug is provided with a hydraulic sensor for measuring the pressure of the liquid inside the pipe.

In the technical scheme, the novel environment-friendly plug for oil extraction testing is provided with the plug with the middle provided with the through hole, when a pipeline is plugged, the plug is plugged into the pipeline, the wedge block is driven to move towards the inside of the plug and is wedged into the through hole in the plug, so that the plug expands, the pipeline can be plugged better, the wedge block can push the sliding rod in the plug to move outwards while wedging the wedge block into the plug, the sliding rod is abutted against the inner wall of the pipeline, a certain fixing effect can be achieved, and the plug can better plug the pipeline and is not easy to slide out; when the plug needs to be taken out, the wedge block is firstly pulled out from the interior of the plug, the plug shrinks, and the sliding rod leaves the inner wall of the pipeline, so that the plug is convenient to take out for the next use.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a schematic diagram of an overall structure provided by an embodiment of the present invention;

FIG. 2 is a schematic diagram of an internal structure of a housing according to an embodiment of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

fig. 4 is a schematic view of the internal structure of the plug according to the embodiment of the present invention.

Description of reference numerals:

10. mounting a plate; 11. a housing; 21. a knob; 22. a first shaft lever; 23. a worm; 24. a second shaft lever; 25. a worm gear; 26. a gear; 27. a rack; 30. a wedge block; 40. a plug; 41. a slide bar; 50. and a hydraulic pressure sensor.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1-4, the novel environment-friendly plug for oil extraction testing comprises a mounting plate 10 and a wedge block 30, wherein a plug 40 with a through hole in the middle is fixedly mounted at the top of the mounting plate 10;

the inside of the plug 40 is slidingly provided with a circumferential array of sliding rods 41, the wedge 30 being driven to wedge into the plug 40 to expand the plug 40 and to cause the rods 41 to project from the inside of the plug 40 against the inner wall of the pipe;

the bottom of the mounting plate 10 is fixedly mounted with a housing 11, and the interior of the housing 11 is provided with a drive assembly for driving the wedge 30 into the plug 40.

Specifically, the driving assembly in the above embodiment may be a reciprocating screw rod driving the wedge 30 to wedge into the plug 40, or a space scissors mechanism pushing the wedge 30 to wedge into the plug 40, and the above driving assembly is well known in the art, and the skilled person can directly obtain the corresponding installation relationship and structure according to the well known knowledge.

In the technical scheme, the device is provided with a plug 40 with a through hole in the middle, when a pipeline is plugged, the plug 40 is plugged into the pipeline, the wedge block 30 is driven to move towards the inside of the plug 40 and wedged into the through hole on the plug 40, so that the plug 40 expands, the pipeline can be plugged better, and the wedge block 30 can push a sliding rod 41 in the plug 40 to move outwards while wedging the plug 40 into the plug 30, so that the sliding rod 41 is abutted against the inner wall of the pipeline, a certain fixing effect can be achieved, and the plug 40 can better plug the pipeline and is not easy to slide out; when it is desired to remove the plug 40, the wedge 30 is first withdrawn from the interior of the plug 40, the plug 40 is retracted and the rod 41 is moved away from the inner wall of the pipe to facilitate removal for further use.

As a further embodiment provided by the present invention, as shown in fig. 2-3, a first shaft rod 22 and a second shaft rod 24 are respectively rotatably disposed inside the housing 11, one end of the first shaft rod 22 extends to the outside of the housing 11 and is fixedly mounted with a knob 21, a worm 23 is disposed on the first shaft rod 22, a worm wheel 25 and a gear 26 are respectively fixedly mounted on the second shaft rod 24, the worm wheel 25 is engaged with the worm 23, a sliding groove is formed inside the housing 11, a rack 27 is slidably disposed in the sliding groove, the rack 27 is engaged with the gear 26, a wedge 30 is fixedly mounted on the top of the rack 27, and a through hole for the wedge 30 to pass through is formed in the center of the mounting plate 10; when a pipeline is plugged, a plug 40 is plugged into the pipeline, the knob 21 is rotated to drive the first shaft lever 22 to rotate, the first rotating shaft lever 22 drives the worm 23 to rotate, the rotating worm 23 drives the worm wheel 25 engaged with the worm to rotate, the rotating worm wheel 25 drives the gear 26 to rotate through the second shaft lever 24, then the rack 27 engaged with the gear 26 is driven to move along the sliding groove formed in the shell 11, and then the wedge block 30 is driven to move towards the interior of the plug 40; when it is desired to remove the plug 40, the reverse rotation of the knob 21 causes the wedge 30 to move away from the interior of the plug 40.

As a further embodiment provided by the present invention, as shown in fig. 1, a hydraulic sensor 50 for measuring the pressure of the liquid inside the pipeline is disposed on the top of the plug 40, so that the pressure of the liquid inside the pipeline can be monitored in real time, and early warning can be given in case of a sudden situation.

The working principle is as follows: when a pipeline is plugged, a plug 40 is plugged into the pipeline, a knob 21 is rotated to drive a first shaft rod 22 to rotate, the first rotating shaft rod 22 drives a worm 23 to rotate, the rotating worm 23 drives a worm wheel 25 engaged with the worm to rotate, the rotating worm wheel 25 drives a gear 26 to rotate through a second shaft rod 24, then a rack 27 engaged with the gear 26 is driven to move along a sliding groove formed in the shell 11, then a wedge block 30 is driven to move towards the interior of the plug 40 and is wedged into a through hole in the plug 40, the plug 40 is expanded, the pipeline can be plugged better, a sliding rod 41 in the plug 40 is pushed to move outwards while the wedge block 30 is wedged into the plug 40, the sliding rod 41 is abutted against the inner wall of the pipeline, a certain fixing effect can be achieved, and the plug 40 can better plug the pipeline and cannot slide out easily; when the plug 40 needs to be taken out, the knob 21 is rotated reversely to drive the wedge block 30 to leave from the inside of the plug 40, the plug 40 is contracted, and the sliding rod 41 leaves the inner wall of the pipeline, so that the plug is convenient to take out for the next use.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.

Claims

1. The novel environment-friendly plug for oil extraction test is characterized by comprising an installation plate (10) and a wedge block (30), wherein the top of the installation plate (10) is fixedly provided with a plug (40) with a through hole in the middle;

the plug (40) is internally slidably provided with a circumferential array of sliding bars (41), the wedge (30) being driven to wedge into the plug (40) to expand the plug (40) and to cause the sliding bars (41) to project from the interior of the plug (40) against the inner wall of the pipe.

2. The new environmental plug for oil recovery testing according to claim 1, characterized in that the bottom of the mounting plate (10) is fixedly installed with a housing (11), and the inside of the housing (11) is provided with a driving assembly for driving the wedge block (30) to wedge into the plug (40).

3. The new environment-friendly plug for oil recovery testing according to claim 2, wherein the driving assembly comprises a knob (21), a first shaft rod (22), a worm (23), a second shaft rod (24), a worm gear (25), a gear (26) and a rack (27), and the first shaft rod (22) and the second shaft rod (24) are respectively and rotatably arranged inside the shell (11).

4. The new environmental plug for oil recovery testing according to claim 3, characterized in that one end of the first shaft rod (22) extends to the outside of the casing (11) and is fixedly installed with a knob (21), and the first shaft rod (22) is provided with a worm (23).

5. The novel environment-friendly plug for oil recovery testing according to claim 4, wherein a worm wheel (25) and a gear (26) are respectively and fixedly mounted on the second shaft rod (24), the worm wheel (25) is meshed with the worm (23), a sliding groove is formed in the shell (11), a rack (27) is arranged in the sliding groove in a sliding manner, and the rack (27) is meshed with the gear (26).

6. The novel environment-friendly plug for oil recovery testing according to claim 5, wherein the wedge (30) is fixedly installed on the top of the rack (27), and a through hole for the wedge (30) to pass through is formed in the center of the mounting plate (10).

7. The new environmental plug for oil recovery testing according to claim 1, characterized in that the top of the plug (40) is provided with a hydraulic sensor (50) for measuring the pressure of the liquid inside the pipe.