CN112943147B - Pressure test experimental device - Google Patents
Pressure test experimental device Download PDFInfo
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- CN112943147B CN112943147B CN201911175721.5A CN201911175721A CN112943147B CN 112943147 B CN112943147 B CN 112943147B CN 201911175721 A CN201911175721 A CN 201911175721A CN 112943147 B CN112943147 B CN 112943147B
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- 238000012360 testing method Methods 0.000 title claims abstract description 60
- 239000007788 liquid Substances 0.000 claims abstract description 66
- 238000004891 communication Methods 0.000 claims abstract description 22
- 238000003860 storage Methods 0.000 claims description 32
- 238000002474 experimental method Methods 0.000 claims description 13
- 230000002265 prevention Effects 0.000 claims description 6
- 238000005498 polishing Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 6
- 238000005086 pumping Methods 0.000 description 6
- 239000000725 suspension Substances 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Examining Or Testing Airtightness (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a pressure test experimental device, which comprises: the pulling assembly is connected with the polished rod and drives the polished rod to move; the pressure testing mechanism comprises a connecting pipe, the connecting pipe is provided with a first communicating port and a second communicating port, the first communicating port is used for installing the rubber gate, and the polished rod is movably arranged in the connecting pipe and the rubber gate; the second communication port is used for injecting liquid into the connecting pipe so as to carry out a pressure test on the rubber gate when the rubber gate is closed and the liquid in the connecting pipe reaches a first preset pressure; the pressure testing mechanism further comprises a pressure detecting piece, and the pressure detecting piece is connected with the connecting pipe to detect the actual pressure in the connecting pipe. The pressure test experimental device solves the problem that the sealing performance of the polish rod in the prior art is inconvenient to detect in the using process.
Description
Technical Field
The invention relates to the field of petrochemical industry, in particular to a pressure test experimental device.
Background
The pumping well polish rod is connected with the pumping unit polished rod eye and the underground pumping rod, the rubber gate and the polish rod sealer realize the sealing function, and the pumping well polish rod transmits the ground reciprocating power to the underground oil well pump.
The valve core of the rubber gate belongs to a vulnerable part and needs to be replaced periodically, and after the valve core of the rubber gate is replaced, a pressure test experiment needs to be carried out to detect the temporary sealing performance of the rubber gate. Also, the polish rod sealer is required to check its sealing performance before use.
In addition, in an oil field production field, the polished rod breaks and then falls into a shaft, the broken polished rod falls into the shaft, the wellhead polished rod is sealed and fails, and a large amount of oil gas is leaked to cause environmental pollution accidents. In order to prevent oil gas leakage caused by polished rod fracture, workers at the same line develop various blowout preventers and also need to perform experimental evaluation on the blowout preventers.
However, in the prior art, no experimental device for the above situations exists, and experiments are usually performed by a workover team on a production site, so that multiple departments are required to coordinate, the completion progress is delayed, and the production rate is affected.
Disclosure of Invention
The invention mainly aims to provide a pressure test experimental device to solve the problem that the sealing performance between a polish rod and a rubber gate is inconvenient to detect in the use process in the prior art.
In order to achieve the above object, the present invention provides a pressure test experimental apparatus, comprising: the pulling assembly is connected with the polished rod and drives the polished rod to move; the pressure testing mechanism comprises a connecting pipe, the connecting pipe is provided with a first communicating port and a second communicating port, the first communicating port is used for installing the rubber gate, and the polished rod is movably arranged in the connecting pipe and the rubber gate; the second communication port is used for injecting liquid into the connecting pipe so as to carry out a pressure test on the rubber gate when the rubber gate is closed and the liquid in the connecting pipe reaches a first preset pressure; the pressure testing mechanism further comprises a pressure detection piece, and the pressure detection piece is connected with the connecting pipe to detect actual pressure in the connecting pipe.
Furthermore, one end of the rubber gate, which is far away from the connecting pipe, is used for installing a polish rod sealer, the connecting pipe extends along a first preset direction, and the polish rod is movably arranged in the polish rod sealer, the rubber gate and the connecting pipe along the first preset direction; the rubber gate is opened, liquid in the connecting pipe reaches second preset pressure, and the polished rod carries out pressure test experiments on the polished rod sealer when the polished rod sealer, the rubber gate and the connecting pipe move in a reciprocating mode along the first preset direction.
Furthermore, a moving channel and a blowout prevention structure are arranged in the polish rod sealer, and the polish rod is inserted in the moving channel; when the pulling assembly drives the polish rod to be separated from the moving channel, the blowout prevention structure is used for plugging the moving channel; when the polish rod leaves the connecting pipe, the rubber gate and the polish rod sealer and the liquid in the connecting pipe reaches a third preset pressure, a pressure test experiment is carried out on the blowout prevention structure.
Further, pressure testing mechanism still includes: one end of the liquid storage pipe is connected with the second communication port so as to communicate the liquid storage pipe with the connecting pipe; the liquid inlet pipeline is connected with the other end of the liquid storage pipe to convey liquid into the liquid storage pipe.
Furthermore, the connecting pipe extends along the first preset direction, the connecting pipe is provided with a first communicating port and a third communicating port which are oppositely arranged along the first preset direction, and the third communicating port is provided with a plug; the second communication port is provided between the first communication port and the third communication port.
Further, pressure testing mechanism still includes: one end of the first pipeline is connected with the liquid storage pipe; and the inflating pump is connected with the other end of the first pipeline so as to inflate the liquid storage pipe through the inflating pump.
Further, the pressure testing mechanism still includes: one end of the second pipeline is connected with the second communication port, and the other end of the second pipeline is connected with the liquid storage pipe; and the second control valve is arranged on the second pipeline to control the on-off of the second pipeline.
Further, the pulling assembly further comprises: the one end of pulling the rope is used for being connected with the polished rod, pulls the rope and movably sets up to drive the polished rod and remove.
Further, the pulling rope has first link and the second link of relative setting, and first link is used for being connected with the polished rod, and the pulling subassembly still includes: the fixed pulley is arranged on the first fixed foundation, the pulling rope is wound on the fixed pulley, the first connecting end and the second connecting end of the pulling rope are oppositely arranged on two sides of the fixed pulley, and the fixed pulley is rotatably arranged.
Further, the pulling assembly further comprises: the mounting sets up on the fixed basis of second, and the second link of pulling the rope is connected with the mounting.
The pressure test experimental device comprises a pulling assembly and a pressure test mechanism, wherein the pulling assembly drives a polish rod to be movably arranged in a connecting pipe and a rubber gate; when the sealing performance of the rubber gate needs to be detected, the rubber gate is arranged on the first communication port of the connecting pipe, and the polish rod is positioned in the rubber gate and used for closing the rubber gate; and then injecting liquid into the connecting pipe to enable the connecting pipe to reach a first preset pressure, detecting the actual pressure in the connecting pipe through the pressure detection piece 36 after the first preset time, wherein if the actual pressure in the connecting pipe is maintained at the first preset pressure and the rubber gate does not leak, the sealing performance of the rubber gate is qualified, and otherwise, the rubber gate is unqualified.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic structural view of an embodiment of a pressure test experimental apparatus according to the present invention.
Wherein the figures include the following reference numerals:
10. a pulling assembly; 11. pulling the rope; 12. a fixed pulley; 13. a fixing member; 20. a polish rod; 30. a pressure testing mechanism; 31. a connecting pipe; 32. a liquid storage pipe; 33. a liquid inlet pipeline; 331. a liquid supply control valve; 34. a first pipeline; 341. a first control valve; 35. inflating the pump; 36. a pressure detecting member; 37. a second pipeline; 371. a second control valve; 38. a third pipeline; 381. a third control valve; 40. a rubber gate; 50. a polish rod sealer; 60. and (5) plugging with a thread.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The invention provides a pressure test experimental device, please refer to fig. 1, comprising: the pulling assembly 10, the pulling assembly 10 is used for connecting with the polish rod 20 and driving the polish rod 20 to move; the pressure testing mechanism 30 comprises a connecting pipe 31, the connecting pipe 31 is provided with a first communicating port and a second communicating port, the first communicating port is used for installing the rubber gate 40, and the polished rod 20 is movably arranged in the connecting pipe 31 and the rubber gate 40; the second communication port is used for injecting liquid into the connecting pipe 31 so as to perform a pressure test on the rubber gate 40 when the rubber gate 40 is closed and the liquid in the connecting pipe 31 reaches a first preset pressure; the pressure testing mechanism 30 further includes a pressure detecting member 36, and the pressure detecting member 36 is connected to the connection pipe 31 to detect the actual pressure in the connection pipe 31.
The pressure test experimental device comprises a pulling assembly 10 and a pressure test mechanism 30, wherein the pulling assembly 10 drives a polish rod 20 to be movably arranged in a connecting pipe 31 and a rubber gate 40; when the sealing performance of the rubber gate 40 needs to be detected, the rubber gate 40 is arranged on the first communication port of the connecting pipe 31, and the polish rod 20 is positioned in the rubber gate 40 and closes the rubber gate 40; and then, injecting a liquid into the connection pipe 31 to make the connection pipe 31 reach a first predetermined pressure, so as to detect the actual pressure in the connection pipe 31 by the pressure detection part 36 after a first predetermined time, wherein if the actual pressure in the connection pipe 31 is maintained at the first predetermined pressure and no leakage occurs at the rubber gate 40, the sealing performance of the rubber gate 40 is qualified, otherwise, the rubber gate is not qualified.
The pulling assembly 10 is used for simulating the oil pumping unit and is connected with the polished rod to drive the polished rod to move, so that the motion condition of the polished rod in actual work is simulated.
When the pressure test experimental device is specifically implemented, the problem that the sealing performance of the polish rod in the using process is inconvenient to detect comprises the following steps: 1. the sealing performance of the polish rod between the rubber gate 40 and the rubber gate 40; 2. the sealing performance of the polish rod between the polish rod sealing device 50 and the polish rod sealing device 50; in addition, the pressure test experimental device can also detect the sealing performance of the blowout prevention structure after the polish rod 20 leaves the connecting pipe 31, the rubber gate 40 and the polish rod sealer 50.
In this embodiment, one end of the rubber gate 40 away from the connecting pipe 31 is used for installing the polish rod sealer 50, the connecting pipe 31 extends along a first preset direction, and the polish rod 20 is movably arranged in the polish rod sealer 50, the rubber gate 40 and the connecting pipe 31 along the first preset direction; so that when the rubber gate 40 is opened and the liquid in the connecting pipe 31 reaches the second predetermined pressure, the polish rod 20 performs a pressure test experiment on the polish rod sealer 50 while reciprocating in the polish rod sealer 50, the rubber gate 40 and the connecting pipe 31 in the first predetermined direction. Specifically, the actual pressure in the connection pipe 31 is detected by the pressure detecting member 36 after the second predetermined time, and if the actual pressure in the connection pipe 31 is maintained at the second predetermined pressure and no leakage occurs at the polish rod sealer 50, the polish rod sealer 50 is qualified, otherwise, it is not qualified.
In specific implementation, the first preset direction is a vertical direction.
In the present embodiment, a moving passage and a blowout preventing structure are provided in the polish rod sealer 50, and the polish rod 20 is inserted in the moving passage; when the pull assembly 10 drives the polish rod 20 to be separated from the moving channel, the blowout prevention structure is used for plugging the moving channel; to perform a pressure test on the blowout preventer when the polished rod 20 leaves the connecting pipe 31, the rubber gate 40, and the polished rod sealer 50, and the liquid in the connecting pipe 31 reaches a third predetermined pressure. Specifically, the actual pressure in the connecting pipe 31 is detected by the pressure detecting element 36 after the third predetermined time, and if the actual pressure in the connecting pipe 31 is maintained at the third predetermined pressure and no liquid leakage occurs in the polish rod sealer 50, the blowout preventer is qualified, otherwise, the blowout preventer is not qualified.
In this embodiment, the pressure testing mechanism 30 further includes: a liquid storage pipe 32, one end of the liquid storage pipe 32 being connected to the second communication port, so that the liquid storage pipe 32 is communicated with the connection pipe 31; and a liquid supply pipeline 33, wherein the liquid supply pipeline 33 is connected with the other end of the liquid storage pipe 32 so as to convey liquid into the liquid storage pipe 32. The liquid storage tube 32 is provided so that the liquid pressure in the connection tube 31 floats more stably. Wherein liquid storage tube 32 is horizontally disposed.
In specific implementation, the liquid supply pipeline 33 is provided with a liquid supply control valve 331 to control the on/off of the liquid supply pipeline 33.
In particular embodiments, pressure sensing element 36 is disposed on fluid storage tube 32. Such an arrangement facilitates the arrangement of the pressure detecting member 36. Preferably, pressure detector 36 is a pressure gauge to monitor the pressure in liquid storage tube 32, i.e. the actual pressure in connecting tube 31.
In specific implementation, the pressure testing mechanism 30 further includes a third pipeline 38, one end of the third pipeline 38 is connected to the liquid storage pipe 32, the other end of the third pipeline 38 is used for arranging the pressure detecting member 36, and a third control valve 381 is arranged on the third pipeline 38 to control on/off of the third pipeline 38.
In specific implementation, the connecting pipe 31 extends along the first preset direction, the connecting pipe 31 has a first communicating port and a third communicating port which are arranged oppositely along the first preset direction, and the third communicating port is provided with a plug 60; the second communication port is provided between the first communication port and the third communication port. Such an arrangement facilitates plugging and cleaning of the connecting tube 31.
In this embodiment, the pressure testing mechanism 30 further includes: a first pipe 34, one end of the first pipe 34 is connected with the liquid storage pipe 32; and an air pump 35, the air pump 35 being connected to the other end of the first pipe 34 to inflate the liquid storage tube 32 through the air pump 35. Due to the arrangement, the inflating pump 35 inflates the liquid storage pipe 32 to prevent gas from entering the connecting pipe 31, and the liquid pressure in the connecting pipe 31 is further ensured to float more stably.
In specific implementation, the first pipeline 34 is provided with a first control valve 341 to control the on/off of the first pipeline 34, so as to control the on/off of the gas.
In this embodiment, the pressure testing mechanism 30 further includes: a second pipeline 37, one end of the second pipeline 37 is connected with the second communication port, and the other end of the second pipeline 37 is connected with the liquid storage pipe 32; and a second control valve 371 disposed on the second pipeline 37 to control the on/off of the second pipeline 37.
To effect movement of the polished rod 20, the pulling assembly 10 further comprises: pulling rope 11, the one end of pulling rope 11 is used for being connected with polished rod 20, and pulling rope 11 movably sets up to drive polished rod 20 and remove along vertical direction.
In specific implementation, the pulling rope 11 has a first connecting end and a second connecting end which are oppositely arranged, the first connecting end is used for being connected with the polish rod 20, the pulling assembly 10 further comprises a fixed pulley 12 which is arranged on a first fixed basis, the pulling rope 11 is wound on the fixed pulley 12, the first connecting end and the second connecting end of the pulling rope 11 are oppositely arranged on two sides of the fixed pulley 12, and the fixed pulley 12 is rotatably arranged.
In specific implementation, the pulling assembly 10 further includes a fixing member 13, which is disposed on the second fixing base, and the second connection end of the pulling rope 11 is connected to the fixing member 13. Preferably, the fixing member 13 is a ground anchor.
Aiming at the pressure test experiment after the rubber gate of the pumping well is replaced by a valve core and the experiment evaluation of the polished rod breaking and falling blowout preventer, the invention designs a pressure test and detection operation control device matched with the processing and production working conditions.
The pressure test experimental device comprises a liquid supply pipeline 33, a liquid storage pipe 32, an inflating pump 35, a pressure gauge, a connecting pipe 31, a suspension rope (namely a pulling rope 11), a fixed pulley 12 and a ground anchor (namely a fixing piece 13). The rubber gate is detachably provided on the connection pipe 31, the polish rod sealer is detachably connected to the rubber gate, and the polish rod 20 is provided in the polish rod sealer 50, the rubber gate 40, and the connection pipe 31. The liquid supply pipeline 33, the liquid storage pipe 32, the inflating pump 35 and the pressure gauge are connected through a matched flange and a matched gate valve, and the bottom of the connecting pipe 31 is plugged through a plug. The connecting pipe 31, the rubber gate 40, and the polish rod sealer 50 are connected by screw threads, and the polish rod 20 is inserted therein. One end of the suspension rope is firmly connected with the polished rod 20 through the fixed pulley, and the other end of the suspension rope is fixed on the ground anchor which is fixed 0.5 m below the ground surface. The liquid storage pipe 32 is filled with clear water through a liquid inlet pipeline 33, an inflating pump 35 is started according to actual pressure of a production site to pressurize to 0.5-1.5 MPa, and a rubber gate pressure test experiment after a valve core is replaced is carried out; and manually pulling the suspension rope to separate the polished rod 20 from the polished rod sealer, and simulating the polished rod breaking and separating condition to perform experimental evaluation on the blowout preventer.
Before the device is used, experiments are carried out by a workover team on a production site in a matched mode, multiple departments are required to coordinate, the well completion progress is delayed, the production yield is influenced, and wellhead oil and gas pollution can be caused. After the pressure test experimental device is used, the clear water is adopted to simulate the on-site actual pressure for carrying out the experiment, the pressure source is cut off at any time according to the experimental condition, the operation is simple and easy, the experiment can be completed by only 2 persons, the accuracy of experimental data acquisition is improved, cooperation of cooperative units is not needed, the oil gas pollution of a wellhead is avoided, and the production efficiency is not influenced.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
the pressure test experimental device comprises a pulling assembly 10 and a pressure test mechanism 30, wherein the pulling assembly 10 drives a polish rod 20 to be movably arranged in a connecting pipe 31 and a rubber gate 40; when the sealing performance of the rubber gate 40 needs to be detected, the rubber gate 40 is arranged on the first communication port of the connecting pipe 31, and the polish rod 20 is positioned in the rubber gate 40 and closes the rubber gate 40; and then, injecting a liquid into the connection pipe 31 to make the connection pipe 31 reach a first predetermined pressure, so as to detect the actual pressure in the connection pipe 31 by the pressure detection part 36 after a first predetermined time, wherein if the actual pressure in the connection pipe 31 is maintained at the first predetermined pressure and no leakage occurs at the rubber gate 40, the sealing performance of the rubber gate 40 is qualified, otherwise, the rubber gate is not qualified.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A pressure testing experimental device is characterized by comprising:
the pulling assembly (10) is connected with the polish rod (20) and drives the polish rod (20) to move, and the pulling assembly (10) is used for connecting with the polish rod (20);
the pressure testing mechanism (30) comprises a connecting pipe (31), the connecting pipe (31) is provided with a first communicating port and a second communicating port, the first communicating port is used for installing a rubber gate (40), and the polished rod (20) is movably arranged in the connecting pipe (31) and the rubber gate (40); the second communication port is used for injecting liquid into the connecting pipe (31) so as to carry out a pressure test on the rubber gate (40) when the rubber gate (40) is closed and the liquid in the connecting pipe (31) reaches a first preset pressure;
the pressure testing mechanism (30) further comprises a pressure detecting piece (36), and the pressure detecting piece (36) is connected with the connecting pipe (31) to detect the actual pressure in the connecting pipe (31);
one end, far away from the connecting pipe (31), of the rubber gate (40) is used for installing a polish rod sealer (50), the connecting pipe (31) extends along a first preset direction, and the polish rod (20) is movably arranged in the polish rod sealer (50), the rubber gate (40) and the connecting pipe (31) along the first preset direction;
when the rubber gate (40) is opened, the liquid in the connecting pipe (31) reaches a second preset pressure, and the polish rod (20) performs a pressure test experiment on the polish rod sealer (50) when the polish rod sealer (50), the rubber gate (40) and the connecting pipe (31) move back and forth along a first preset direction;
a moving channel and a blowout prevention structure are arranged in the polish rod sealer (50), and the polish rod (20) is inserted into the moving channel; when the pulling assembly (10) drives the polish rod (20) to be separated from the moving channel, the blowout preventing structure is used for plugging the moving channel;
so as to carry out a pressure test experiment on the blowout preventing structure when the polish rod (20) leaves the connecting pipe (31), the rubber gate (40) and the polish rod sealer (50) and liquid in the connecting pipe (31) reaches a third preset pressure.
2. The pressure testing experimental apparatus as set forth in claim 1, wherein the pressure testing mechanism (30) further comprises:
one end of the liquid storage pipe (32) is connected with the second communication port, so that the liquid storage pipe (32) is communicated with the connecting pipe (31);
and the liquid supply pipeline (33) is connected with the other end of the liquid storage pipe (32) so as to convey liquid into the liquid storage pipe (32).
3. The pressure test experimental device as claimed in claim 2, wherein the connecting pipe (31) extends along a first preset direction, the connecting pipe (31) has the first communicating port and a third communicating port which are oppositely arranged along the first preset direction, and the third communicating port is provided with a plug (60); the second communication port is provided between the first communication port and the third communication port.
4. The pressure testing experimental apparatus as set forth in claim 2, wherein the pressure testing mechanism (30) further comprises:
a first pipeline (34), wherein one end of the first pipeline (34) is connected with the liquid storage pipe (32);
and the air pump (35) is connected with the other end of the first pipeline (34) so as to charge air into the liquid storage pipe (32) through the air pump (35).
5. The pressure testing experimental apparatus as set forth in claim 2, wherein the pressure testing mechanism (30) further comprises:
one end of the second pipeline (37) is connected with the second communication port, and the other end of the second pipeline (37) is connected with the liquid storage pipe (32);
and the second control valve (371) is arranged on the second pipeline (37) and used for controlling the on-off of the second pipeline (37).
6. The pressure testing experimental apparatus as claimed in any one of claims 1 to 5, characterized in that the pulling assembly (10) further comprises:
the polishing device comprises a pulling rope (11), one end of the pulling rope (11) is used for being connected with the polished rod (20), and the pulling rope (11) can be movably arranged to drive the polished rod (20) to move.
7. The pressure testing experimental apparatus of claim 6, characterized in that the pulling rope (11) has a first connecting end and a second connecting end which are oppositely arranged, the first connecting end is used for connecting with the polish rod (20), and the pulling assembly (10) further comprises:
the fixed pulley (12) is arranged on a first fixed base, the pulling rope (11) is wound on the fixed pulley (12), the first connecting end and the second connecting end of the pulling rope (11) are oppositely arranged on two sides of the fixed pulley (12), and the fixed pulley (12) is rotatably arranged.
8. The pressure testing experimental apparatus of claim 7, characterized in that the pulling assembly (10) further comprises:
the fixing piece (13) is arranged on a second fixing basis, and the second connecting end of the pulling rope (11) is connected with the fixing piece (13).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911175721.5A CN112943147B (en) | 2019-11-26 | 2019-11-26 | Pressure test experimental device |
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| CN201911175721.5A CN112943147B (en) | 2019-11-26 | 2019-11-26 | Pressure test experimental device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5267469A (en) * | 1992-03-30 | 1993-12-07 | Lagoven, S.A. | Method and apparatus for testing the physical integrity of production tubing and production casing in gas-lift wells systems |
| CN200940469Y (en) * | 2006-06-29 | 2007-08-29 | 新疆石油管理局采油工艺研究院 | Flow pipe net of separate production and separate transport wellhead |
| US20140079560A1 (en) * | 2012-09-14 | 2014-03-20 | Chris Hodges | Hydraulic oil well pumping system, and method for pumping hydrocarbon fluids from a wellbore |
| CN105952409A (en) * | 2016-07-11 | 2016-09-21 | 中国石油化工股份有限公司华东油气分公司泰州采油厂 | Hydraulic wellhead polished rod stuffing box self-tightening device |
| CN106351621B (en) * | 2016-09-08 | 2018-11-20 | 中国石油大学(华东) | For studying the experimental facilities of oil gas wellbore gas intrusion and migration mechanism |
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