CN104018803A - High-practicality protection device - Google Patents
High-practicality protection device Download PDFInfo
- Publication number
- CN104018803A CN104018803A CN201410224602.5A CN201410224602A CN104018803A CN 104018803 A CN104018803 A CN 104018803A CN 201410224602 A CN201410224602 A CN 201410224602A CN 104018803 A CN104018803 A CN 104018803A
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- China
- Prior art keywords
- flange
- piston
- piston rod
- connector
- protective device
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Abstract
The invention discloses a high-practicality protection device which comprises two cylinders (1) of the same size, a piston (2) connected with the end of a piston rod (6), a connection element (3), a flange plate (4), an end socket (7) and a sealing ring (8). One end of each of the two cylinders (1) of the same size is vertically fixed to the connection element (3) through a bolt, the other end of each of the two cylinders (1) is fixed to the end socket (7) for sealing, the piston (2) vertically penetrates through the connection element (3) and the flange plate (4), and the sealing ring (8) penetrates through the piston rod (6) and is pressed on the outer surface of the flange plate (4). By means of the structure, the aim of protecting oil producing wellhead devices of a low pressure level to work safely is effectively achieved, and the protection device is high in practicality, simple in structure and convenient to operate.
Description
Technical field
The present invention relates to producing well field, be specifically related to practical protective device.
Background technology
Wellhead assembly before using needs well head to carry out pressure testing operation, can under high pressure carry out safety operation with the device that ensures production wellhead.This kind of pressure testing operation need to be carried out more preliminary preparation early stage conventionally, while preparing pressure testing material and facility, needs to check whether the material and facility of preparing damages; Check whether pressure meter damages, and whether pointer makes zero, and whether manometric range is suitable; Whether the gap size of control flange junction is consistent, and whether bolt tightens, and whether steel ring enters groove; Check whether each road pipeline connects appropriate, whether pressure testing channel valve switch is correct; Checking whether each road pipeline has breaks, leaks; Check whether relief hole closes.All more complicated of existing tree-protector structure, need professional operating personnel just can operate, and cannot effectively reach protection lower pressure stages other wellhead for production and under high pressure carry out safety work, make troubles to production.
Summary of the invention
The present invention has overcome the deficiencies in the prior art, and practical protective device is provided, and this apparatus structure is simple, easy to operate, effectively reaches other wellhead for production of protection lower pressure stages and under high pressure carries out safety work, practical.
For solving above-mentioned technical problem, the present invention is by the following technical solutions: practical protective device, comprise two cylinder barrel, the piston that is connected to piston rod end, connector, flange, end socket and sealing rings that grade is large, one end of the cylinder barrel that two described grades are large is all vertically fixed on connector by bolt, and the other end of two cylinder barrels is all fixed on end socket and seals; Piston is wherein vertically through connector and flange; Described sealing ring passes piston rod and is pressed on the external surface of flange.Only this device need be lifted on little four-way, must not damage piston rod, sealing ring must pad tightly simultaneously, and the bolt that simultaneously connects cylinder barrel must symmetry tighten, and is beneficial to piston rod and inserts in piston.This device only need be strained and fixed with steel cable with production tree while use, and tension equalizer is opened lift valve, positive well-flushing; piston rod is descending can be set, and effectively reaches other wellhead for production of protection lower pressure stages and under high pressure carries out safety work, practical; simple in structure, easy to use.
Described flange is U character form structure, and the two ends of flange are all fixed on connector.Ensure that piston rod can firmly be inserted on piston, ensure the balanced of downforce and press down according to correct direction.
On the side of described flange two symmetries, be provided with through hole.Be fixed for better and production tree.
Described end socket is arranging through hole between two cylinder barrels and on end socket.Be convenient to strain with steel cable.
On piston, cover has Fastener, and Fastener is between connector and flange.Ensure that piston position is not offset.
Two described large cylinder barrels such as grade are parallel to each other.
Piston rod is vertically divided flange equally.
Compared with prior art, the invention has the beneficial effects as follows:
1, the present invention adopts said structure, effectively reaches other wellhead for production of protection lower pressure stages and under high pressure carries out safety work, practical, simple in structure, easy to operate.
2, flange is set to U character form structure, ensures that piston rod can firmly be inserted on piston, ensures the balanced of downforce and presses down according to correct direction.
3, on the side of flange two symmetries and be provided with through hole on end socket, better and production tree be fixed with steel cable and strain.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
In figure, Reference numeral is expressed as: 1, cylinder barrel; 2, piston; 3, connector; 4, flange; 5, Fastener; 6, piston rod; 7, end socket; 8, sealing ring.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further elaborated, and embodiments of the invention are not limited to this.
Embodiment 1:
As shown in Figure 1, the present invention includes two cylinder barrel 1, the piston 2 that is connected to piston rod 6 ends, connector 3, flange 4, end socket 7 and sealing rings 8 that grade is large, one end of the cylinder barrel 1 that two described grades are large is all vertically fixed on connector 3 by bolt, and the other end of two cylinder barrels 1 is all fixed on end socket 7 and seals; Piston 2 is wherein vertical through connector 3 and flange 4; Described sealing ring 8 passes piston rod 6 and is pressed on the external surface of flange 4.
This device is lifted on little four-way, and this device and production tree are strained and fixed with steel cable, pulling force should be balanced steadily, must not draw partially or overexert and damage protector and production tree.Then, lift valve is opened, positive well-flushing, makes that piston rod is descending to be set.Open production gate, envelope is tested in pressurization, and test pressure should reach the maximum pressure of FRACTURING DESIGN.If leak, answer termination of pumping, protector piston rod to be mentioned, closing well, then pulls down protector, after replacing piston rod seal component, reinstalls protector pressure testing again.In fracturing work process, sleeve gate and produce the pressure of gate and should have instrument or instrument monitoring, to find in time in operation process, whether protector occurs leaking, if leak, can termination of pumping closing well, or be prudent in dealing with depending on concrete condition.This device can effectively reach other wellhead for production of protection lower pressure stages and under high pressure carry out safety work, practical, simple in structure, easy to operate.
Embodiment 2:
Preferably concrete structure is as follows on the basis of embodiment 1 for the present embodiment: flange 4 is U character form structure, and the two ends of flange 4 are all fixed on connector 3.Flange is provided with through hole on 4 liang of symmetrical sides.
Described end socket 7 is arranging through hole between two cylinder barrels 1 and on end socket 7.On piston 2, cover has Fastener 5, and Fastener 5 is between connector 3 and flange 4.Described large cylinder barrel 1 such as two grades is parallel to each other.
Piston rod 6 is vertically divided flange 4 equally.Flange is set to U character form structure, ensures that piston rod can firmly be inserted on piston, ensures the balanced of downforce and presses down according to correct direction.On the side of flange two symmetries He on end socket, be provided with through hole, better and production tree is fixed with steel cable strains.
Just can realize as mentioned above this invention.
Claims (7)
1. practical protective device, it is characterized in that: comprise two cylinder barrel (1), the piston (2) that is connected to piston rod (6) end, connector (3), flange (4), end socket (7) and sealing rings (8) that grade is large, it is upper that one end of the cylinder barrel (1) that two described grades are large is all vertically fixed on connector (3) by bolt, and the other end of two cylinder barrels (1) is all fixed on end socket (7) and seals; Piston (2) is wherein vertically through connector (3) and flange (4); Described sealing ring (8) passes piston rod (6) and is pressed on the external surface of flange (4).
2. practical protective device according to claim 1, is characterized in that: described flange (4) is U character form structure, and the two ends of flange (4) are all fixed on connector (3).
3. practical protective device according to claim 2, is characterized in that: on the side of described flange (4) two symmetries, be provided with through hole.
4. practical protective device according to claim 1, is characterized in that: described end socket (7) is positioned between two cylinder barrels (1) and on end socket (7) through hole is set.
5. practical protective device according to claim 1, is characterized in that: the upper cover of piston (2) has Fastener (5), Fastener (5) to be positioned between connector (3) and flange (4).
6. practical protective device according to claim 1, is characterized in that: the cylinder barrel (1) that two described grades are large is parallel to each other.
7. practical protective device according to claim 1, is characterized in that: piston rod (6) is vertically divided flange (4) equally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410224602.5A CN104018803A (en) | 2014-05-27 | 2014-05-27 | High-practicality protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410224602.5A CN104018803A (en) | 2014-05-27 | 2014-05-27 | High-practicality protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104018803A true CN104018803A (en) | 2014-09-03 |
Family
ID=51435764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410224602.5A Pending CN104018803A (en) | 2014-05-27 | 2014-05-27 | High-practicality protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104018803A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4832128A (en) * | 1986-10-17 | 1989-05-23 | Shell Pipe Line Corporation | Wellhead assembly for injection wells |
| CN201344010Y (en) * | 2009-02-13 | 2009-11-11 | 新疆石油管理局试油公司 | Oil wellhead protector |
| CN201412106Y (en) * | 2009-05-31 | 2010-02-24 | 中国石油化工股份有限公司 | Well-head protector |
| CN202249899U (en) * | 2011-09-22 | 2012-05-30 | 中国石化集团江汉石油管理局井下测试公司 | Pressure isolating device for wellhead production tree |
| CN203847041U (en) * | 2014-05-27 | 2014-09-24 | 成都来宝石油设备有限公司 | Double cylinder protective device |
-
2014
- 2014-05-27 CN CN201410224602.5A patent/CN104018803A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4832128A (en) * | 1986-10-17 | 1989-05-23 | Shell Pipe Line Corporation | Wellhead assembly for injection wells |
| CN201344010Y (en) * | 2009-02-13 | 2009-11-11 | 新疆石油管理局试油公司 | Oil wellhead protector |
| CN201412106Y (en) * | 2009-05-31 | 2010-02-24 | 中国石油化工股份有限公司 | Well-head protector |
| CN202249899U (en) * | 2011-09-22 | 2012-05-30 | 中国石化集团江汉石油管理局井下测试公司 | Pressure isolating device for wellhead production tree |
| CN203847041U (en) * | 2014-05-27 | 2014-09-24 | 成都来宝石油设备有限公司 | Double cylinder protective device |
Non-Patent Citations (1)
| Title |
|---|
| 上海尊优自动化设备有限公司: "双缸井口保护器", 《中国石油物资网》, 8 June 2010 (2010-06-08) * |
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Application publication date: 20140903 |