CN202165044U - Blowout preventer for swabbing steel cable for oil field - Google Patents
Blowout preventer for swabbing steel cable for oil field Download PDFInfo
- Publication number
- CN202165044U CN202165044U CN2011202753888U CN201120275388U CN202165044U CN 202165044 U CN202165044 U CN 202165044U CN 2011202753888 U CN2011202753888 U CN 2011202753888U CN 201120275388 U CN201120275388 U CN 201120275388U CN 202165044 U CN202165044 U CN 202165044U
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- joint pipe
- oil field
- sealed joint
- pumping
- wire rope
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Abstract
The utility model discloses a blowout preventer for a swabbing steel cable for an oil field. The blowout preventer for the swabbing steel cable for the oil field comprises a steel cable, a pulley and a pedestal, wherein the pedestal is used for being connected with wellhead equipment; the upper part of the pedestal is a ball body; the ball body is sealed in a ball seat; the pedestal and an extending pipe at the lower part of the ball body are hermetically sleeved together; the upper part of the ball body is hermetically connected with a sealing connecting pipe of which the upper part extends into a pressing cap body and is fixedly connected with the pressing cap body; the pulley is articulated in the pressing cap body; the pressing cap body, the sealing connecting pipe, the ball body and the pedestal have hollow cavities inside; and the steel cable passes through the hollow cavities in the pressing cap body, the sealing connecting pipe, the ball body, and the pedestal. The utility model provides the blowout preventer for the swabbing steel cable for the oil field, which is reliable in sealing and reasonable in design, has high practicability and can ensure the inlet to be sealed.
Description
Technical field
The utility model relates to the oil field oil pumping, swabbing operation is used equipment technical field, and the pumping wireline preventer is used in particularly a kind of oil field of inlet seal that guarantees.
Background technology
When the oil pumping in the oil field, swabbing operation, borehole fluid (crude oil, water, gas amalgam) enters measuring tank along with swab pumping up and down reciprocatingly and carries out the oil test data admission.In order to guarantee in the swabbing operation process, the band hydraulic fluid causes the hidden danger of catching fire with the wire rope outer spray that moves upward in the well, and pollute in the well site, operational difficulty with data admission forbidden etc., the import blowout hookup is one of must indispensable important device in the formation testing swabbing operation.For a long time, people are seeking suitable structure always, to improve its sealing and reliability.
Two main causes that cause swabbing operation Central Plains oil leakage to lose, one side pumping wire rope rough surface, poor sealing performance, pumping blowout prevention box sealing is poor on the other hand, and seepage is serious.Existing pumping wellhead blowout preventer has mechanical type, two kinds of forms of fluid pressure type.Both basic functional principle all are to apply external force to seal disc, force packing distortion, and Seal Oil inside pipe wall and the toroidal helical space that the wire rope external surface forms make the band hydraulic fluid not flow into measuring tank with wire rope outer spray that do not move up and down.But when the oil pumping in the oil field, swabbing operation; Wire rope and wellhead sealing device packing are made relative reciprocating sliding friction; The rate of wear is very fast, and surface irregularity is when particularly using old coarse wire rope swabbing operation; The wellhead sealing device packing be difficult to adapt to the outer shape of wire rope, and often the working time has been grown the wellhead sealing device packing and just lost sealability.At this moment, when changing blowout omens such as producing overflow, can cause environment pollution or gas blowout accident as if borehole pressure.Therefore, design is a kind of can guarantee that the oil field of inlet seal is a problem of needing solution badly with the pumping blowout hookup.
The utility model content
The purpose of the utility model provides a kind of oil field of inlet seal that can guarantee and uses the pumping wireline preventer.
The technical scheme of the utility model is:
The pumping wireline preventer is used in a kind of oil field, comprises wire rope, pulley, base, it is characterized in that; Said base is used for being connected with wellhead equipment, and base top is the bulb body, and the bulb body is sealed in ball cup inside; The protruded tube sealing shroud of base and bulb body bottom is fitted together; The top and the sealed joint pipe of bulb body are tightly connected, and the top of sealed joint pipe is stretched into cap presser and is fixedly connected with cap presser, is hinged with pulley in the cap presser; Said cap presser, sealed joint pipe, bulb body, base inside have the cavity of perforation, and said wire rope passes from cap presser, sealed joint pipe, bulb body, the inner cavity of base.
The characteristic of the utility model also be said ball cup be divided into the seat of honour with following, the seat of honour and following pass through the steady pin sealing and fixing.Simultaneously the seat of honour also is provided with sealing mat with following connecting portion.Can well guarantee the sealing effectiveness of connecting portion like this, avoid the potential safety hazard that causes because of leakage.
The characteristic of the utility model is that also the top of said ball cup has overhanging cone boss; The sealed joint pipe bottom has the conical socket corresponding with cone boss, and the top of ball cup is tightly connected through cone boss and conical socket with the seal of tube that is tightly connected.In like manner also can have overhanging cone boss in said sealed joint pipe bottom, the top of ball cup has the conical socket corresponding with cone boss, and the top of ball cup is tightly connected through cone boss and conical socket with the seal of tube that is tightly connected.
The characteristic of the utility model is that also said sealed joint pipe is the integral sealing pipe.In its inner chamber of sealed joint pipe packing unit is housed, packing unit is provided with the screw thread that extends to its inner chamber from external surface, and sealed joint pipe top and cap presser are through being threaded, and cap presser props up the packing unit of the tube cavity that is tightly connected.Such connected mode can be guaranteed the sealing effectiveness of this connecting portion, avoids the potential safety hazard that causes because of leakage.
The characteristic of the utility model is that also said base outer wall is provided with a plurality of guard pins that stretch to protruded tube bar wall.Can guarantee that like this utility model can bear very big pressure,, also be unlikely to take place blowout even if the pressure in the well changes.
The characteristic of the utility model is that also said wire rope is a bright wire rope; Be specially a kind of wire rope of moulding film that wrapped up; Sliding friction was less when wire rope and wellhead sealing device packing did relatively reciprocating motion like this; Sealing performance is very outstanding, and the rate of wear of part obviously descends, and satisfies instructions for use.
The beneficial effect of the utility model is: the upper articulation of the cap presser of the utility model has pulley, and pulley has certain guide effect, and the swing of wire rope in the time of retraining pumping reduces its wearing and tearing to packing unit in sealed joint pipe or the sealed joint pipe.The utility model structure provides a kind of sealing reliable, and reasonable in design, and the pumping wireline preventer is used in the practical oil field that can guarantee inlet seal.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
According to accompanying drawing, the utility model is carried out detailed narration.
Accompanying drawing 1 is a specific embodiment of the utility model, and the pumping wireline preventer is used in a kind of oil field, comprises wire rope 1, pulley 2, base 3; It is characterized in that; Said base 3 is used for being connected with wellhead equipment, and base 3 tops are bulb body 4, and bulb body 4 is sealed in ball cup 5 inside; Base 3 is fitted together with protruded tube 4.1 sealing shrouds of bulb body 4 bottoms; The top of bulb body 4 and sealed joint pipe 6 are tightly connected, and the top seal socket cap presser 7 of sealed joint pipe 6 is hinged with pulley 2 in the cap presser 7; Said cap presser 7, sealed joint pipe 6, bulb body 4, base 3 inside have the cavity of perforation, and said wire rope 1 passes from cap presser 7, sealed joint pipe 6, bulb body 4, base 3 inner cavitys.Said base 3 outer walls are provided with a plurality of guard pins 9 that stretch to protruded tube 4.1 bar walls, and the guard pin 9 in the present embodiment is two, and two are symmetrical set.From figure, can see, the ball cup 5 of present embodiment be divided into the seat of honour 5.1 with following 5.2, the seat of honour 5.1 and following 5.2 are through steady pin 5.3 sealing and fixing and be provided with sealing mat between the two.So both make things convenient for installing/dismounting, can well guarantee the sealing effectiveness of connecting portion again, avoided the potential safety hazard that causes because of leakage.
In addition, the top of the ball cup 5 in the present embodiment has overhanging cone boss, and sealed joint pipe 6 bottoms have the conical socket corresponding with cone boss, and the top of ball cup 5 and sealed joint pipe 6 are tightly connected through cone boss and conical socket.
Sealed joint pipe 6 in the present embodiment is the integral sealing pipe.In sealed joint pipe 6 its inner chambers packing unit 8 is housed, packing unit 8 is provided with the screw thread that extends to its inner chamber from external surface, and sealed joint pipe 6 tops and cap presser 7 are through being threaded, and cap presser 7 props up the packing unit 8 of sealed joint pipe 6 inner chambers.
The wire rope 1 that present embodiment adopts is a bright wire rope, is specially a kind of wire rope of moulding film that wrapped up.
Claims (8)
1. the pumping wireline preventer is used in the oil field; Comprise wire rope (1), pulley (2), base (3); It is characterized in that: said base (3) is used for being connected with wellhead equipment, and base (3) top is bulb body (4), and bulb body (4) is sealed in ball cup (5) inside; Base (3) is fitted together with protruded tube (4.1) sealing shroud of bulb body (4) bottom; The top of bulb body (4) and sealed joint pipe (6) are tightly connected, and the top seal socket cap presser (7) of sealed joint pipe (6) is hinged with pulley (2) in the cap presser (7); Said cap presser (7), sealed joint pipe (6), bulb body (4), base (3) inside have the cavity of perforation, and said wire rope (1) passes from cap presser (7), sealed joint pipe (6), bulb body (4), the inner cavity of base (3).
2. the pumping wireline preventer is used in oil field according to claim 1, it is characterized in that: said base (3) outer wall is provided with a plurality of guard pins (9) that stretch to protruded tube (4.1) bar wall.
3. the pumping wireline preventer is used in oil field according to claim 1, it is characterized in that: said wire rope (1) is a bright wire rope.
4. the pumping wireline preventer is used in oil field according to claim 3, it is characterized in that: said wire rope (1) is a kind of wire rope of moulding film that wrapped up.
5. the pumping wireline preventer is used in oil field according to claim 1, it is characterized in that: said sealed joint pipe (6) is the integral sealing pipe.
6. use the pumping wireline preventer according to claim 1 or 5 described oil fields; It is characterized in that: in its inner chamber of sealed joint pipe (6) packing unit (8) is housed; Packing unit (8) is provided with the screw thread that extends to its inner chamber from external surface; Sealed joint pipe (6) top and cap presser (7) are through being threaded, and cap presser (7) props up the packing unit (8) of sealed joint pipe (6) inner chamber.
7. use the pumping wireline preventer according to the described oil field of claim 1; It is characterized in that: the top of said ball cup (5) has overhanging cone boss; Sealed joint pipe (6) bottom has the conical socket corresponding with cone boss, and the top of ball cup (5) and sealed joint pipe (6) sealing are tightly connected through cone boss and conical socket.
8. use the pumping wireline preventer according to the described oil field of claim 1, it is characterized in that: said ball cup (5) is divided into the seat of honour (5.1) and following (5.2), and the seat of honour (5.1) and following (5.2) are through steady pin (5.3) sealing and fixing and be provided with sealing mat between the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202753888U CN202165044U (en) | 2011-08-01 | 2011-08-01 | Blowout preventer for swabbing steel cable for oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202753888U CN202165044U (en) | 2011-08-01 | 2011-08-01 | Blowout preventer for swabbing steel cable for oil field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202165044U true CN202165044U (en) | 2012-03-14 |
Family
ID=45800879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202753888U Expired - Fee Related CN202165044U (en) | 2011-08-01 | 2011-08-01 | Blowout preventer for swabbing steel cable for oil field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202165044U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639957A (en) * | 2016-12-02 | 2017-05-10 | 中国石油天然气股份有限公司 | Double-acting suction blowout preventer |
| CN108798585A (en) * | 2017-05-05 | 2018-11-13 | 中国石油天然气股份有限公司 | Pumping blowout-preventing device |
| CN110107249A (en) * | 2019-05-14 | 2019-08-09 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of closed blowout prevention box anti-oil leakage device |
-
2011
- 2011-08-01 CN CN2011202753888U patent/CN202165044U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639957A (en) * | 2016-12-02 | 2017-05-10 | 中国石油天然气股份有限公司 | Double-acting suction blowout preventer |
| CN108798585A (en) * | 2017-05-05 | 2018-11-13 | 中国石油天然气股份有限公司 | Pumping blowout-preventing device |
| CN108798585B (en) * | 2017-05-05 | 2020-07-10 | 中国石油天然气股份有限公司 | Swabbing blowout preventer |
| CN110107249A (en) * | 2019-05-14 | 2019-08-09 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of closed blowout prevention box anti-oil leakage device |
| CN110107249B (en) * | 2019-05-14 | 2023-11-07 | 中国石油天然气集团有限公司 | Oil leakage preventing device of airtight blowout prevention box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120314 Termination date: 20130801 |