CN211549633U - Multifunctional wellhead anti-theft plugging device - Google Patents
Multifunctional wellhead anti-theft plugging device Download PDFInfo
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- CN211549633U CN211549633U CN201921881705.3U CN201921881705U CN211549633U CN 211549633 U CN211549633 U CN 211549633U CN 201921881705 U CN201921881705 U CN 201921881705U CN 211549633 U CN211549633 U CN 211549633U
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- wellhead
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- plugging device
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Abstract
The utility model discloses a multi-functional well head theftproof plugging device, the shutoff is on the well head, including the well head assembly, pressure measurement pressure release mouth has been seted up at well head assembly top, and the lock has protection gland on the well head assembly, still includes the quick pressure measurement pressure release subassembly that matches with pressure measurement pressure release mouth. The utility model has low cost, is suitable for shut-in wells, new drilling wells, overflow wells and the like, and has the functions of theft prevention, leakage prevention and overflow prevention (back flow); and the rapid pressure measurement and pressure relief of the open hole well can be realized, and the environmental pollution accidents caused by high bottom hole pressure outflow or well field water backflow and human factors are effectively avoided.
Description
Technical Field
The utility model belongs to the technical field of oil field well head equipment, a multi-functional well head theftproof plugging device is related to.
Background
With the continuous propulsion of the water injection work of the oil field, the formation pressure is gradually increased, the phenomenon of oil overflow due to the rise of the liquid level exists when the well is partially shut down, or the phenomenon of overflow due to the backflow of rainwater exists, so that the hidden danger of great environmental pollution exists. The conventional shut-down well wellhead plugging is simple in plug manufacturing, namely an iron sheet is welded on a screw head, so that the situation that foreign matters outside do not enter the wellhead is guaranteed, the plug is not strong in protection, is easy to damage, cannot measure pressure, relieve pressure and the like, and has certain safety risk when well operation is recovered.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a multi-functional well head theftproof plugging device has realized quick pressure measurement of well head and pressure release.
The utility model discloses the technical scheme who adopts is, a multi-functional well head theftproof plugging device, the shutoff is on the bore hole well head, including the well head assembly, pressure measurement pressure release mouth has been seted up at well head assembly top, and the lock has the protection gland on the well head assembly, still includes the quick pressure measurement pressure release subassembly that matches with pressure measurement pressure release mouth.
The utility model is also characterized in that,
the wellhead assembly is a bottomless hollow cylinder, the wellhead assembly is covered on a wellhead, the top of the wellhead assembly is provided with a special-shaped dismounting groove, and the pressure measuring and relieving port is arranged at the bottom of the special-shaped dismounting groove.
The quick pressure measuring and relieving component comprises a three-way valve, and the three-way valve is respectively connected with a wellhead assembly, a pressure gauge and a pressure relief valve.
The special-shaped dismounting groove is triangular.
The wellhead assembly is connected with the protective gland through the matched guide groove and the guide head.
The well head assembly and the protection gland are fixed and locked by a special-shaped screw.
An O-shaped sealing ring is arranged between the wellhead assembly and the wellhead wall.
The utility model has the advantages that:
the utility model relates to a multifunctional wellhead anti-theft plugging device, which has simple structure, flexible and convenient use and low cost; the anti-theft anti-leakage anti-overflow device is suitable for shut-in wells, new drilling wells, overflow wells and the like, and has the functions of preventing theft, preventing leakage and preventing overflow (backflow); and the rapid pressure measurement and pressure relief of the wellhead can be realized, the environmental pollution accidents caused by high bottom hole pressure outflow or well field water backflow and human factors are effectively avoided, and the safety and the environmental protection are realized.
Drawings
Fig. 1 is an exploded view of the structure of a multifunctional wellhead anti-theft plugging device of the utility model;
fig. 2 is the structural schematic diagram of the upward viewing angle of the wellhead assembly of the multifunctional wellhead anti-theft plugging device.
In the figure, 1, a wellhead assembly, 2, a pressure measuring and relieving port, 3, a protective gland, 4, a pressure gauge, 5, a pressure relief valve, 6, a special-shaped disassembly groove, 7, a special-shaped screw and 8, a three-way valve are arranged.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to a multifunctional wellhead anti-theft plugging device, plugging on the wellhead of an open hole well, as shown in figure 1, comprising a wellhead assembly 1, an O-shaped sealing ring is arranged between the wellhead assembly 1 and the wellhead wall, as shown in figure 2, the wellhead assembly 1 is a bottomless hollow cylinder, the wellhead assembly 1 is covered on the wellhead, the top of the wellhead assembly 1 is provided with a special-shaped disassembly groove 6, the special-shaped disassembly groove 6 is triangular or other shapes, the bottom of the special-shaped disassembly groove 6 is provided with a pressure measuring and pressure relieving port 2, the top of the wellhead assembly 1 is provided with the pressure measuring and pressure relieving port 2, the device also comprises a rapid pressure measuring and pressure relieving component matched with the pressure measuring and pressure relieving port 2, the rapid pressure measuring and pressure relieving component comprises a three-way valve 8, the three-way valve 8 is respectively connected with the wellhead assembly, a pressure gauge and a pressure relief valve 5, the wellhead assembly 1 is fixedly locked with the, the pressure measuring device also comprises a pressure gauge 4 matched with the pressure measuring and relieving port 2 and a rapid pressure measuring and relieving component.
The utility model relates to a multi-functional well head theftproof plugging device's essential element acts on as follows:
the wellhead assembly 1 is used for plugging and protecting a wellhead.
An O-shaped sealing ring is arranged between the wellhead assembly 1 and the wellhead wall, so that the sealing property between the wellhead assembly 1 and the wellhead wall is enhanced.
Pressure measurement pressure release mouth 2 is convenient for in time master the well pressure and the liquid level condition, reduces the risk of well head operation, and pressure measurement pressure release mouth 2 is connected with manometer, relief valve 5 through three-way valve 8, is used for measuring the well pressure respectively, lets out and reduces the pressure in the well.
Protection gland 3 has the secondary theftproof function, can prevent simultaneously that the well head from corroding the damage well head because of debris such as rainwater.
The utility model relates to a multi-functional well head theftproof plugging device's use specifically as follows:
the installation process comprises the following steps: and slowly rotating the wellhead assembly 1 by using a disassembling tool matched with the special-shaped disassembling groove 6 to enable the wellhead assembly 1 to cover the wellhead, aligning a guide head on the protective gland 3 to a guide groove on the wellhead assembly 1, pressing down the rotary protective gland 3, screwing down the screw 7, and fixedly locking the wellhead assembly 1 and the protective gland 3.
The disassembling process comprises the following steps: use the spanner to take out screw 7, rotatory protection gland 3 to guide way department takes out protection gland 3, through using manometer pressure measurement and 5 pressure release of relief valve, after the non-pressure is confirmed to rethread manometer, uses and dismantles the extracting tool that recess 6 matches with the dysmorphism and pull down well head assembly 1 from the well head, follow-up well head operation that can normally carry out.
Claims (7)
1. The utility model provides a multi-functional well head theftproof plugging device, the shutoff is on the bore hole well head, a serial communication port, including well head assembly (1), pressure measurement pressure release mouth (2) have been seted up at well head assembly (1) top, the lock has protection gland (3) on well head assembly (1), still includes manometer (4) and the quick pressure measurement pressure release subassembly that matches with pressure measurement pressure release mouth (2).
2. The multifunctional wellhead anti-theft plugging device according to claim 1, characterized in that the wellhead assembly (1) is a bottomless hollow cylinder, the wellhead assembly (1) is covered on a wellhead, a detaching groove (6) is arranged at the top of the wellhead assembly (1), and the pressure measuring and relieving port (2) is arranged at the bottom of the detaching groove (6).
3. The multifunctional wellhead anti-theft plugging device according to claim 1, characterized in that the rapid pressure measuring and releasing component comprises a three-way valve (8), and the three-way valve (8) is respectively connected with a wellhead assembly (1), a pressure gauge (4) and a pressure releasing valve (5).
4. A multifunctional wellhead anti-theft plugging device according to claim 2, characterized in that said disassembly groove (6) is triangular.
5. The multifunctional wellhead anti-theft plugging device according to claim 1, characterized in that the wellhead assembly (1) is connected with the protective gland (3) through a matched guide groove and a matched guide head.
6. The multifunctional wellhead anti-theft plugging device according to claim 3, characterized in that the wellhead assembly (1) and the protection gland (3) are fixedly locked by a special-shaped screw (7).
7. A multifunctional wellhead anti-theft plugging device according to claim 3, characterized in that an O-shaped sealing ring is arranged between the wellhead assembly (1) and the wellhead wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921881705.3U CN211549633U (en) | 2019-11-04 | 2019-11-04 | Multifunctional wellhead anti-theft plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921881705.3U CN211549633U (en) | 2019-11-04 | 2019-11-04 | Multifunctional wellhead anti-theft plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211549633U true CN211549633U (en) | 2020-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921881705.3U Active CN211549633U (en) | 2019-11-04 | 2019-11-04 | Multifunctional wellhead anti-theft plugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211549633U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114892719A (en) * | 2022-06-22 | 2022-08-12 | 山西四建集团有限公司 | Anti-falling and anti-backflow well lid |
-
2019
- 2019-11-04 CN CN201921881705.3U patent/CN211549633U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114892719A (en) * | 2022-06-22 | 2022-08-12 | 山西四建集团有限公司 | Anti-falling and anti-backflow well lid |
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