CN107558996B - Anti-freezing pressure measuring joint for oil-water well - Google Patents
Anti-freezing pressure measuring joint for oil-water well Download PDFInfo
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- CN107558996B CN107558996B CN201711059883.3A CN201711059883A CN107558996B CN 107558996 B CN107558996 B CN 107558996B CN 201711059883 A CN201711059883 A CN 201711059883A CN 107558996 B CN107558996 B CN 107558996B
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Abstract
The invention discloses an anti-freezing pressure measuring joint for an oil-water well, which comprises a piston and a shell, wherein the piston is arranged in the shell in a sliding and sealing manner, the upper end of the shell is provided with a pressure gauge hollow joint, the lower end of the shell is provided with an oil-water well pipeline hollow joint, at least one of the pressure gauge hollow joint and the oil-water well pipeline hollow joint is detachably connected to the end part of the shell, anti-freezing oil is filled in the shell, and the anti-freezing oil is positioned between the piston and the pressure gauge hollow joint. The anti-freezing pressure measuring joint for the oil-water well is arranged on a network pipe of the oil-water well, fluid in the network pipe can transfer the pressure of the fluid to anti-freezing oil in a shell by pushing a piston, and a pressure gauge arranged on the shell can directly or indirectly measure the pressure of the anti-freezing oil, so that the problem that the pressure gauge is damaged due to freezing when the pressure gauge is in direct contact with the fluid is solved.
Description
Technical Field
The invention belongs to the technical field of oil well development, and particularly relates to an anti-freezing pressure measuring joint for an oil-water well.
Background
During the exploitation process of the oil-water well, the pressure of oil in the oil-water well needs to be regularly measured by using a pressure gauge. But because temperature is lower in winter, when the staff used the pressure gauge to measure the pressure of oil-water well, oil took place to freeze in the easy immersion pressure gauge of fluid, and then damaged the pressure gauge and caused the measuring result inaccurate.
Disclosure of Invention
The invention aims to provide an anti-freezing pressure measuring joint for an oil-water well, which solves the problem that oil is easy to freeze when the pressure gauge is used for measuring the pressure of the oil-water well in winter, and the oil is immersed into the pressure gauge.
The technical scheme adopted by the invention is as follows: the utility model provides an oil water well is with pressure measurement joint prevents frostbite, includes piston and casing, piston sliding seal sets up in the casing, the upper end of casing is provided with pressure gauge hollow joint, and the lower extreme of casing is provided with oil water well pipeline hollow joint, pressure gauge hollow joint and oil water well pipeline hollow joint have at least a detachably to connect at the tip of casing, are equipped with the oil of preventing frostbite in the casing, the oil of preventing frostbite in the piston with between the pressure gauge joint.
The technical scheme of the invention also has the following technical characteristics:
and an annular groove is formed in the outer side wall of the piston, and a sealing ring is arranged between the annular groove and the inner wall of the shell.
And a first compression spring is arranged between the piston and the pressure gauge hollow joint.
A groove is formed in the center of the piston, and one end of the first compression spring is arranged in the groove.
Still include the seal pin, the tip of seal pin slides and sets up in the pressure gauge hollow joint, still be provided with the sealing washer between the tip of seal pin and the inner wall of pressure gauge hollow joint, the head top of seal pin is in on the first compression spring.
Still include seal pin and swivel nut, the seal pin slides and sets up in the pressure gauge hollow joint, the swivel nut is fixed to be set up in the pressure gauge hollow joint, and the seal pin is located the top of swivel nut is provided with second compression spring in the swivel nut, still is provided with the sealing washer between the tip of seal pin and the inner wall of pressure gauge hollow joint, and the head top of seal pin is on second compression spring.
The outer side of the shell is provided with an anti-theft outer cover, and the pressure gauge hollow joint or the oil-water well pipeline hollow joint is located in the anti-theft outer cover.
And an oil inlet hole is formed in the pressure gauge hollow joint and communicated with the inside of the shell.
And a discharge port is arranged on the side part of the hollow joint of the oil-water well pipeline.
The technical scheme of the invention has the beneficial effects that: the antifreezing pressure measuring joint for the oil-water well is arranged on the pipe network of the oil-water well, the pressure of fluid in the pipe network can be transferred to the antifreezing oil in the shell by pushing the piston, and the pressure gauge arranged on the shell can directly or indirectly measure the pressure of the antifreezing oil, so that the problems that the pressure gauge is directly contacted with the oil or water to freeze and the pressure gauge is damaged are solved.
Drawings
FIG. 1 is a schematic structural view of a first embodiment of an antifreeze pressure tap for oil and water wells according to the present invention;
FIG. 2 is a schematic structural view of a second embodiment of the antifreeze pressure tap for oil and water wells of the present invention;
fig. 3 is a schematic structural view of a third embodiment of the antifreeze pressure tap for oil and water wells according to the present invention.
In the figure: 1. the pressure gauge comprises a pressure gauge hollow joint, 2 a shell, 3 a first compression spring, 4 a piston, 5 an oil-water well pipeline hollow joint, 6 a discharge port, 7 a seal pin, 8 a seal ring, 9 an anti-theft outer cover, 10 an oil inlet, 11 a second compression spring and 12 a screw sleeve.
Detailed Description
The technical scheme of the invention is further explained in detail by combining the description of the attached drawings and the specific embodiment.
Example 1
As shown in figure 1, the anti-freezing pressure tap for the oil-water well mainly comprises a piston 4 and a shell 2. Wherein the piston 4 slides and sets up in the casing, be provided with the ring channel on the lateral wall of piston 4, it is sealed through sealing washer 8 between the inner wall of ring channel and casing 2, can prevent water or fluid in the oil-water well network management that awaits measuring from soaking the upper portion of piston 4, the upper end threaded connection of casing 2 has pressure gauge hollow joint 1, the lower extreme fixedly connected with oil-water well pipeline hollow joint 5 of casing 2, the oil of preventing frostbite is equipped with in the casing 2, the oil of preventing frostbite is located between piston 4 and pressure gauge hollow joint 1, the center of piston 4 is provided with the recess, be provided with first compression spring 3 between piston 4 and pressure gauge hollow joint 1, the one end of first compression spring 3 sets up in the recess in the middle part of piston 4, the other end.
When the anti-freezing pressure measuring joint for the oil-water well in the embodiment 1 works, the oil-water well pipeline hollow joint 5 is firstly installed on a network pipe of an oil-water well to be measured, then the pressure gauge is installed on the pressure gauge hollow joint 1, fluid in the network pipe can push the piston 4 to slide upwards, the pressure of the fluid is transmitted to the anti-freezing oil in the shell 2 through the piston 4, at the moment, the pressure gauge can calculate the pressure of the fluid in the network pipe by measuring the pressure of the anti-freezing oil, and the problem that the pressure gauge is damaged due to freezing when the pressure gauge is in direct contact with the. After the pressure measurement is finished, the hollow joint 5 of the pipeline of the oil-water well is detached from the network pipe of the oil-water well to be measured, and at the moment, the piston 4 is reset under the action of the first compression spring 3.
Example 2
As shown in FIG. 2, the antifreeze pressure measuring joint for the oil-water well mainly comprises a piston 4, a shell 2, a first compression spring 3 and a seal pin 7. The piston 4 is arranged in the shell 2 in a sliding mode, an annular groove is formed in the outer side wall of the piston 4, a sealing ring 8 is arranged between the annular groove and the inner wall of the shell 2 and can prevent fluid in an oil-water well network pipe from immersing into the upper portion of the piston 4, a pressure gauge hollow joint 1 is fixedly connected to the upper end of the shell 2, an oil-water well pipeline hollow joint 5 is in threaded connection with the lower end of the shell 2, anti-freezing oil is filled in the shell 2 and is located between the piston 4 and the pressure gauge joint 1, and a groove is formed in the middle of the. The sealing pin 7 is arranged in the pressure gauge hollow joint 1 in a sliding mode, and the end portion of the sealing pin 7 and the inner wall of the pressure gauge hollow joint 1 are sealed through a sealing ring 8. A first compression spring 3 is arranged in the shell 2, one end of the first compression spring 3 is arranged in a groove of the piston 4, and the other end of the first compression spring 3 is pressed against the lower end of the pressure gauge hollow joint 1
The antifreeze pressure measuring joint for the oil-water well in the embodiment 2 is characterized in that when the antifreeze pressure measuring joint for the oil-water well works, the oil-water well pipeline hollow joint 5 is firstly installed on a network pipe of an oil-water well, then the pressure gauge is installed on the pressure gauge hollow joint 1, fluid in the network pipe can push the piston 4 to slide upwards when entering the shell 2 through the oil-water well pipeline hollow joint 5, the pressure of the fluid is transmitted to antifreeze oil in the shell 2 through the piston 4, the antifreeze oil can push the seal pin 7 to move upwards, the pressure gauge can determine the pressure of the fluid in the oil-water well network pipe by measuring the pressure of the seal pin 7 at the moment, and the phenomenon. After the pressure measurement is finished, the oil-water well pipeline hollow joint 5 is detached from the network pipe of the oil-water well to be measured, the discharge port 6 is opened, and the piston 4 is reset under the action of the first compression spring 3.
Example 3
As shown in FIG. 3, the antifreeze pressure measuring joint for the oil-water well mainly comprises a piston 4, a shell 2, a first compression spring 3, a second compression spring 11, a seal pin 7 and a threaded sleeve 9. The piston 4 is arranged in the shell 2 in a sliding mode, an annular groove is formed in the outer side wall of the piston 2, the annular groove is sealed with the inner wall of the shell 2 through a sealing ring 8, fluid in an oil-water well network pipe can be prevented from immersing the upper portion of the piston 4, a pressure gauge hollow joint 1 is arranged at the upper end of the shell 2, the lower end of the shell 2 is connected with an oil-water well pipeline hollow joint 5 in a threaded mode, anti-freezing oil is filled in the shell 2 and located between the piston 4 and the pressure gauge hollow joint 1, a groove is formed in the center of the upper surface of the piston 4, the first compression spring 3 is arranged in the shell 2, one end of the first compression spring 3 is arranged in the groove of the piston 4, and. The sealing pin 7 is arranged in the pressure gauge hollow joint 1 in a sliding mode, the end portion of the sealing pin 7 and the inner wall of the pressure gauge hollow joint 1 are sealed through a sealing ring 8, a threaded sleeve 12 is fixedly arranged in the pressure gauge hollow joint 1, the sealing pin 7 is located above the threaded sleeve 12, a second compression spring 11 is arranged in the threaded sleeve 12 in a sliding mode, and the upper end of the second compression spring 11 abuts against the head portion of the sealing pin 7. The anti-theft outer cover 9 is sleeved on the outer side of the shell 2, and the oil-water well pipeline hollow joint 5 is positioned in the anti-theft outer cover 9, so that the oil stealing behavior of other people through the oil-water well pipeline hollow joint 5 can be prevented. An oil inlet hole 10 is formed in the pressure gauge hollow joint 1, the oil inlet hole 10 is communicated with the interior of the shell 2, and anti-freezing oil can be supplemented into the shell 2 through the oil inlet hole.
The antifreeze pressure measuring joint for the oil-water well in the embodiment 3 is operated, firstly, the oil-water well pipeline hollow joint 5 is installed on a pipe network of an oil-water well, then, the pressure gauge is installed on the pressure gauge hollow joint 1, when fluid in the pipe network enters the shell 2, the piston 4 can be pushed to slide upwards, the pressure of the fluid is transmitted to antifreeze oil in the shell 2 through the piston 4, the seal pin 7 and the first compression spring 3 can move upwards under the action of the antifreeze oil and the second compression spring 11, the pressure gauge can be touched after the seal pin 7 moves upwards, at the moment, the pressure gauge can determine the pressure of the fluid in the pipe network of the oil-water well by measuring the pressure of the seal pin 7, and the problem that the pressure gauge is damaged due to. After the pressure measurement is finished, the hollow joint 5 of the oil-water well pipeline is detached from the network pipe of the oil-water well to be measured, at the moment, the piston 4 is quickly reset under the action of the first compression spring 3, and the seal pin 7 is quickly reset under the action of the second compression spring 11.
Claims (3)
1. The anti-freezing pressure measuring joint for the oil-water well is characterized by comprising a piston (4) and a shell (2), wherein the piston (4) is arranged in the shell (2) in a sliding and sealing manner, a pressure gauge hollow joint (1) is arranged at the upper end of the shell (2), an oil-water well pipeline hollow joint (5) is arranged at the lower end of the shell (2), the pressure gauge hollow joint (1) and/or the oil-water well pipeline hollow joint (5) are/is detachably connected to the end part of the shell (2), anti-freezing oil is filled in the shell (2), and the anti-freezing oil is positioned between the piston (4) and the pressure gauge hollow joint (1); an annular groove is formed in the outer side wall of the piston (4), and a sealing ring (8) is arranged between the annular groove and the inner wall of the shell (2); a first compression spring (3) is arranged between the piston (4) and the pressure gauge hollow joint (1); a groove is formed in the center of the piston, and one end of the first compression spring (3) is arranged in the groove; an anti-theft outer cover (9) is arranged on the outer side of the shell (2), and the pressure gauge hollow joint (1) or the oil-water well pipeline hollow joint (5) is positioned in the anti-theft outer cover (9); still include seal pin (7) and swivel nut (12), seal pin (7) slide to set up in pressure gauge hollow joint (1), swivel nut (12) are fixed to be set up in pressure gauge hollow joint (1), and seal pin (7) are located the top of swivel nut (12), are provided with second compression spring (11) in swivel nut (12), still are provided with between the tip of seal pin (7) and the inner wall of pressure gauge hollow joint (1) sealing washer (8), and the head top of seal pin (7) is on second compression spring (11).
2. The anti-freezing pressure measuring joint for oil-water wells is characterized in that an oil inlet hole (10) is formed in the pressure gauge hollow joint (1), and the oil inlet hole (10) is communicated with the inside of the shell (2).
3. The anti-freezing pressure tap for oil and water wells according to claim 2, wherein the side of the hollow tap (5) for oil and water well pipeline is provided with a discharge port (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711059883.3A CN107558996B (en) | 2017-11-01 | 2017-11-01 | Anti-freezing pressure measuring joint for oil-water well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711059883.3A CN107558996B (en) | 2017-11-01 | 2017-11-01 | Anti-freezing pressure measuring joint for oil-water well |
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| Publication Number | Publication Date |
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| CN107558996A CN107558996A (en) | 2018-01-09 |
| CN107558996B true CN107558996B (en) | 2021-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711059883.3A Active CN107558996B (en) | 2017-11-01 | 2017-11-01 | Anti-freezing pressure measuring joint for oil-water well |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426597B (en) * | 2018-06-01 | 2024-08-13 | 无锡莱顿电子有限公司 | Sensor with anti-freezing structure |
| CN114964566A (en) * | 2022-05-18 | 2022-08-30 | 北京雷神博峰信息技术有限责任公司 | Anti-freezing wide-pressure detection device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2263196Y (en) * | 1996-05-28 | 1997-09-24 | 大庆高新技术产业开发区思特测井仪器有限公司 | Freeze-proofing theft-proof pressure testing device for oil well |
| RU2201503C2 (en) * | 2000-08-14 | 2003-03-27 | Государственное унитарное предприятие Тимано-Печорский научно-исследовательский центр | Gear to investigate formation fluids |
| CN201943691U (en) * | 2011-01-28 | 2011-08-24 | 瞿建华 | Pressure tapping and measuring device of oil-water well |
| CN203532410U (en) * | 2013-10-12 | 2014-04-09 | 徐州重型机械有限公司 | Pressure measurement connector with exhaust function and hydraulic system |
| CN205172562U (en) * | 2015-11-12 | 2016-04-20 | 中石化石油工程技术服务有限公司 | Dual range manometer automatic control valve |
| CN205506270U (en) * | 2016-04-25 | 2016-08-24 | 中国石油天然气股份有限公司 | Antifreezing device for pressure gauge |
| CN206545508U (en) * | 2017-03-09 | 2017-10-10 | 宝鸡市金心泵业制造有限责任公司 | Water injection well antifreezing device for pressure meter |
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