CN104018799A - Well mouth protecting device - Google Patents
Well mouth protecting device Download PDFInfo
- Publication number
- CN104018799A CN104018799A CN201410224574.7A CN201410224574A CN104018799A CN 104018799 A CN104018799 A CN 104018799A CN 201410224574 A CN201410224574 A CN 201410224574A CN 104018799 A CN104018799 A CN 104018799A
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- balance cylinder
- adjusting rod
- valve seat
- tree
- base
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Abstract
The invention discloses a well mouth protecting device which comprises a cone (1), a cut off valve core (3), a balance piston (4), a cut off valve seat (5), a balance cylinder (6), a protecting mechanism (8), a base (11) and an adjusting rod (12). The cone (1) is installed at the top end of the adjusting rod (12). The lower portion of the adjusting rod (12) is connected with the balance piston (4). The bottom of the balance piston (4) is connected with the balance cylinder (6). The bottom of the balance cylinder (6) is installed on the base (11). The top of the balance cylinder (6) is further connected with the cut off valve core (3). The periphery of the balance cylinder (6) is connected with the cut off valve seat (5). The top of the cut off valve seat (5) is fixedly connected with the protecting mechanism (8). Through the structure, setting time of the well mouth protecting mechanism is delayed, setting is less conducted on a protector in the normal production process of a gas well, the well opening time rate is increased, labor intensity of staff is lowered, and production cost is reduced.
Description
Technical field
The present invention relates to oil gas well field, be specifically related to tree-protector.
Background technology
The gas field development of pacifying the border region adopts high-pressure gas collection technique; well head unmanned; in long-term manufacturing process; impact due to various factors; well head and flow line potential damage the major hidden danger such as even break; for preventing the generation of serious accident, the gas field of pacifying the border region produces gas well need to install tree-protector.Tree-protector is one of important measures that ensure gas well production safety; under the normal condition of production; the setting frequent continuous and stable production of gas well of giving of tree-protector causes negative effect; the setting ratio of the improper closing well of gas well that causes of tree-protector is for successive years in 30% left and right; even if use good protector still cannot solve the setting problem frequently of protector; reduce rate while driving a well, increased employee's labour intensity and cost of production.
Summary of the invention
The present invention has overcome the deficiencies in the prior art; tree-protector is provided, has delayed the setting time of wellhead protecting mechanism, reduced gas well at the setting number of times of normal productive process protector; improve rate while driving a well, reduced employee's labour intensity and cost of production.
For solving above-mentioned technical problem, the present invention is by the following technical solutions: tree-protector, comprise cone, close spool, dummy piston, close valve seat, balance cylinder, protection mechanism, base and adjusting rod, described cone is arranged on the top of adjusting rod, adjusting rod below is connected with dummy piston, dummy piston bottom connects balance cylinder, and balance cylinder bottom is arranged on base; The top of described balance cylinder is connection closed spool also, and the peripheral connection closed valve seat at balance cylinder, is fixedly connected with protection mechanism at the top of closing valve seat.
On the outer wall at described balance cylinder top, be symmetrically distributed with throttling valve.
Taper hole plate is installed at described protection mechanism top, and taper hole plate, for the top board of fixing top, is provided with gas feed in the both sides of top board.
The bottom of described base arranges gas vent.
The top of described cone is set to arcwall face.Be convenient to the operation in later stage.
Compared with prior art, the invention has the beneficial effects as follows:
1, the present invention installs dummy piston, balance cylinder and throttling valve in order to delay the setting time of well head mechanism in the bottom of closing spool, reduced the setting number of times that causes the improper closing well of gas well of well head mechanism, improve rate while driving a well, reduced employee's labour intensity and cost of production.
2, the setting of throttling valve can realize the size of gas flow is controlled, and the size of regulation output air-flow prevents that air-flow is excessive to this device generation impact, further avoids the situation of closing well head to occur.
Accompanying drawing explanation
Fig. 1 is sectional view of the present invention.
In figure, Reference numeral is expressed as: 1, cone; 2, gas feed; 3, close spool; 4, dummy piston; 5, close valve seat; 6, balance cylinder; 7, taper hole plate; 8, protection mechanism; 9, throttling valve; 10, gas vent; 11, base; 12, adjusting rod.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is further elaborated, and embodiments of the invention are not limited to this.
Embodiment:
As shown in Figure 1, the present invention includes cone 1, close spool 3, dummy piston 4, close valve seat 5, balance cylinder 6, protection mechanism 8, base 11 and adjusting rod 12, the top of cone 1 is set to arcwall face.
The cone 1 of the present embodiment is arranged on the top of adjusting rod 12, and adjusting rod 12 belows are connected with dummy piston 4, and dummy piston 4 bottoms connect balance cylinder 6, and balance cylinder 6 bottoms are arranged on base 11, and the bottom of base 11 arranges gas vent 10.The top of the balance cylinder 6 of the present embodiment is connection closed spool 3 also, and the peripheral connection closed valve seat 5 at balance cylinder 6, is fixedly connected with protection mechanism 8 at the top of closing valve seat 5.On the outer wall at balance cylinder 6 tops wherein, be symmetrically distributed with throttling valve 9; Taper hole plate 7 is installed at protection mechanism 8 tops, and taper hole plate 7, for the top board of fixing top, is provided with gas feed 2 in the both sides of top board.
This device is realized automatically closing in emergency circumstances by shut off differential pressure is set, gas well under normal circumstances, base and be to keep opening-wide state between the balance cylinder above base, when high-pressure gas collection line fracture or occur abnormal conditions when gas leakage, the pressure of this device below reduces suddenly, pressure increase before and after this device, and then promotion balance cylinder, balance cylinder acts on the dummy piston of top, and then dummy piston acts on and cuts out spool, thereby makes gas cutout.This mechanism is not by direct Compress Spring, promotion valve body is closed valve seat and is realized gas cutout, in the bottom of closing spool, increase and dummy piston, balance cylinder and throttling valve are installed in order to delay the setting time of well head mechanism, reduced the setting number of times that causes the improper closing well of gas well of well head mechanism, improve rate while driving a well, reduced employee's labour intensity and cost of production.In addition, the setting of throttling valve can realize to be controlled the size of gas flow, and the size of regulation output air-flow prevents that air-flow is excessive to this device generation impact, avoids the situation of closing well head to occur.
Just can realize this invention as mentioned above.
Claims (5)
1. tree-protector, it is characterized in that: comprise cone (1), close spool (3), dummy piston (4), close valve seat (5), balance cylinder (6), protection mechanism (8), base (11) and adjusting rod (12), described cone (1) is arranged on the top of adjusting rod (12), adjusting rod (12) below is connected with dummy piston (4), dummy piston (4) bottom connects balance cylinder (6), and balance cylinder (6) bottom is arranged on base (11); The top of described balance cylinder (6) is connection closed spool (3) also, and the peripheral connection closed valve seat (5) at balance cylinder (6), is fixedly connected with protection mechanism (8) at the top of closing valve seat (5).
2. tree-protector according to claim 1, is characterized in that: on the outer wall at described balance cylinder (6) top, be symmetrically distributed with throttling valve (9).
3. tree-protector according to claim 1, is characterized in that: taper hole plate (7) is installed at described protection mechanism (8) top, and taper hole plate (7), for the top board of fixing top, is provided with gas feed (2) in the both sides of top board.
4. tree-protector according to claim 1, is characterized in that: the bottom of described base (11) arranges gas vent (10).
5. tree-protector according to claim 1, is characterized in that: the top of described cone (1) is set to arcwall face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410224574.7A CN104018799A (en) | 2014-05-27 | 2014-05-27 | Well mouth protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410224574.7A CN104018799A (en) | 2014-05-27 | 2014-05-27 | Well mouth protecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104018799A true CN104018799A (en) | 2014-09-03 |
Family
ID=51435760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410224574.7A Pending CN104018799A (en) | 2014-05-27 | 2014-05-27 | Well mouth protecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104018799A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113216897A (en) * | 2021-05-27 | 2021-08-06 | 刘峰铄 | Float collar float shoe for well cementation construction |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2793309Y (en) * | 2004-11-12 | 2006-07-05 | 中国石油天然气股份有限公司 | Natural gas well wellhead reset safety protection device |
| CN101936144A (en) * | 2010-09-13 | 2011-01-05 | 中国海洋石油总公司 | Uphole pressure-bearing protective device |
| CN201972646U (en) * | 2011-01-19 | 2011-09-14 | 北京金科龙石油技术开发有限公司 | Wellhead protector |
| CN103161424A (en) * | 2011-12-15 | 2013-06-19 | 中国石油天然气股份有限公司 | Gas well wellhead pressure reduction well opening device |
| CN203847040U (en) * | 2014-05-27 | 2014-09-24 | 成都来宝石油设备有限公司 | Well head protective mechanism with sealing difficulty |
-
2014
- 2014-05-27 CN CN201410224574.7A patent/CN104018799A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2793309Y (en) * | 2004-11-12 | 2006-07-05 | 中国石油天然气股份有限公司 | Natural gas well wellhead reset safety protection device |
| CN101936144A (en) * | 2010-09-13 | 2011-01-05 | 中国海洋石油总公司 | Uphole pressure-bearing protective device |
| CN201972646U (en) * | 2011-01-19 | 2011-09-14 | 北京金科龙石油技术开发有限公司 | Wellhead protector |
| CN103161424A (en) * | 2011-12-15 | 2013-06-19 | 中国石油天然气股份有限公司 | Gas well wellhead pressure reduction well opening device |
| CN203847040U (en) * | 2014-05-27 | 2014-09-24 | 成都来宝石油设备有限公司 | Well head protective mechanism with sealing difficulty |
Non-Patent Citations (1)
| Title |
|---|
| 张耀刚等: "井口保护器的改进及应用", 《石油化工应用》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113216897A (en) * | 2021-05-27 | 2021-08-06 | 刘峰铄 | Float collar float shoe for well cementation construction |
| CN113216897B (en) * | 2021-05-27 | 2022-07-08 | 大庆市天德忠石油科技有限公司 | Float collar float shoe for well cementation construction |
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Application publication date: 20140903 |