CN201218078Y - Polished rod breaking anti-blowout tool for oil pumping well - Google Patents
Polished rod breaking anti-blowout tool for oil pumping well Download PDFInfo
- Publication number
- CN201218078Y CN201218078Y CNU2008201092509U CN200820109250U CN201218078Y CN 201218078 Y CN201218078 Y CN 201218078Y CN U2008201092509 U CNU2008201092509 U CN U2008201092509U CN 200820109250 U CN200820109250 U CN 200820109250U CN 201218078 Y CN201218078 Y CN 201218078Y
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- sealing plate
- housing
- spring
- well
- plate
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Abstract
The utility model discloses a polish rod breaking and blowout hookup of a pumping well, which is applied to the sucker rod pumping operation of an oil field. The polish rod breaking and blowout hookup is characterized in that a spring and a sealing plate are arranged at one end of the interior part of the shell body, one end of the spring is contacted with the inner wall of the shell body, and the other end of the spring is contacted with the sealing plate. The sealing plate is a rectangular ain plate, an arc breach is arranged at one end of the sealing plate, and the interior part of the breach is connected with a pin roller. A handle passing through the wall of the shell body is welded at the other end of the sealing plate. The through holes of the vertical sealing plate are arranged on the upper bottom surface and the lower bottom surface of the shell body, a connecting short section is welded on the shell body, and the connecting short section faces the through hole. The utility model has the advantages that the packing static seal can be automatically realized when a polish rod breaks and falls into an oil well, and the crude oil in the well can be prevented from being blown out of the ground. The utility model is applicable to the use on the oil well adopting the pumping well for oil production.
Description
Technical field
The utility model relates to the oilfield exploitation technical field, particularly sucker rod pumping equipment is that a kind of rod-pumped well polished rod is disconnected take off after, prevent the blowout prevention instrument of oil well crude oil ejection.
Background technology
At present, oil pumping polish rod takes place from the disconnected phenomenon of taking off of clamp in rod-pumped well in process of production often.Polished rod is disconnected take off after, following all sucker rods that connect of polished rod together fall in the well together with polished rod.The oil well packing box cooperates with the outer wall of oil pumping polish rod and plays sealing function.In case oil pumping polish rod falls in the well, packing box loses sealing function, and crude oil can spray along the packing box centre bore in the well.After taking place that the rod-pumped well polished rod is disconnected and taking off crude oil ejection accident, can cause the crude oil waste, cause well site ambient contamination environment on the other hand.
The utility model content
The purpose of this utility model provides the disconnected blowout prevention instrument that takes off of a kind of rod-pumped well polished rod, when oil pumping polish rod is disconnected when coming off into oil well, can realize the packing box static seal, avoids crude oil ejection ground in the well.What overcome is existing at present not enough, utilizes a kind of novel packing box, goes into when polished rod falls into oil well, realizes the packing static seal, avoids crude oil ejection ground in the well.
The technical solution adopted in the utility model is: the disconnected blowout prevention instrument that takes off of rod-pumped well polished rod, mainly form by housing, connection pipe nipple, roller, sealing plate, spring and handle.Housing is the rectangle box body that steel plate is welded into, and housing has upper bottom surface and bottom surface, and wall is arranged all around.At enclosure interior one end spring and plate sealing together are arranged, an end of spring contacts with inner walls, and the spring other end contacts with sealing plate.Sealing plate is a rectangle plain plate, at an end of sealing plate the circular arc gap is arranged, and is connected with roller in the circular arc gap of sealing plate.The other end of sealing plate is welded with handle, shakes hands to cylindrical, and handle passes the wall of housing.When the pulling handle, sealing plate can slide to the right in housing and compress spring; When unclamping handle, spring releases energy and promotes sealing plate and be moved to the left in housing.
The through hole that the vertical seal plate is arranged on housing upper bottom surface and bottom surface, through hole can make oil pumping polish rod pass through.Be welded with on the upper bottom surface of housing and bottom surface and be connected pipe nipple, it is relative with described through hole to connect pipe nipple.When unclamping the handle sealing plate when being moved to the left, sealing plate can cover described through hole.
Take off the blowout prevention instrument and be installed in well head the rod-pumped well polished rod is disconnected, oil pumping polish rod passes this blowout prevention instrument.During oil pumper work, oil pumping polish rod can pump along roller.When oil pumping polish rod is falling in the oil well, spring promotes sealing plate and is moved to the left, and sealing plate covers also and seals well head, avoids crude oil ejection ground in the well.
The beneficial effects of the utility model: the utility model rod-pumped well polished rod is disconnected to take off the blowout prevention instrument, is applied to use on more than the 30 mouthful of oil well of North China Oilfield, polished rod is disconnected fall into oil well after, can realize the packing static seal automatically, avoid crude oil ejection ground in the well.Be applicable on the oil well of oil pumper production and use that application prospect is very wide.
Description of drawings
Fig. 1 is the disconnected blowout prevention tool construction generalized section of taking off of the utility model rod-pumped well polished rod.
Fig. 2 is the disconnected vertical section schematic diagram that takes off the blowout prevention instrument of rod-pumped well polished rod.
Wherein, 1. housing 2. connects pipe nipple, 3. roller, 4. sealing plate, 5. spring, 6. handle, 7. polished rod.
The specific embodiment
Embodiment 1:
Consult Fig. 1.The disconnected blowout prevention instrument that takes off of rod-pumped well polished rod, mainly by housing 1, connect pipe nipple 2, roller 3, sealing plate 4, spring 5 and shake hands and 6 form.Housing 1 is the rectangle box body that the steel plate of 5 millimeters thick is welded into, and the inside length of housing 1 is 300 * 73 * 6 millimeters.Housing 1 has upper bottom surface and bottom surface, and wall is arranged all around.At housing 1 an inner end two compression springs 5 and plate sealing together 4 are arranged, an end of spring 5 contacts with housing 1 inwall, and spring 5 other ends contact with sealing plate 4.Sealing plate 4 is a rectangle plain plate, length and width, thick be 100 * 70 * 4 millimeters.End at sealing plate 4 has the circular arc gap, is connected with three rollers 3 in the circular arc gap of sealing plate 4.The other end of sealing plate 4 is welded with handle 6, and handle 6 is cylindrical, and handle 6 passes the wall of housing 1.
Consult Fig. 2.The through hole that vertical seal plate 4 is arranged on housing 1 upper bottom surface and bottom surface is welded with on the upper bottom surface of housing 1 and bottom surface and is connected pipe nipple 2, and it is relative with described through hole to connect pipe nipple.The external diameter that connects pipe nipple 2 is 73mm, wall thickness 5.5mm, and length is 100mm.There is external screw thread the lower end that connects pipe nipple 2, and there is internal thread the upper end.
Claims (2)
1, the disconnected blowout prevention instrument that takes off of a kind of rod-pumped well polished rod, mainly by housing (1), connect pipe nipple (2), roller (3), sealing plate (4), spring (5) and handle (6) are formed, it is characterized in that: housing (1) is the rectangle box body that steel plate is welded into, housing (1) has upper bottom surface and bottom surface, wall is arranged all around, at the inner end of housing (1) spring (5) and plate sealing together (4) are arranged, one end of spring (5) contacts with housing (1) inwall, spring (5) other end contacts with sealing plate (4), sealing plate (4) is a rectangle plain plate, end at sealing plate (4) has the circular arc gap, be connected with roller (3) in the circular arc gap of sealing plate (4), the other end of sealing plate (4) is welded with handle (6), and handle (6) is cylindrical, handle (6) passes the wall of housing (1)
The through hole that vertical seal plate (4) are arranged on housing (1) upper bottom surface and bottom surface is welded with on the upper bottom surface of housing (1) and bottom surface and is connected pipe nipple (2), and it is relative with described through hole to connect pipe nipple.
2, rod-pumped well polished rod according to claim 1 is disconnected takes off the blowout prevention instrument, it is characterized in that: be connected with three rollers (3) side by side in the circular arc gap of sealing plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201092509U CN201218078Y (en) | 2008-07-16 | 2008-07-16 | Polished rod breaking anti-blowout tool for oil pumping well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201092509U CN201218078Y (en) | 2008-07-16 | 2008-07-16 | Polished rod breaking anti-blowout tool for oil pumping well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201218078Y true CN201218078Y (en) | 2009-04-08 |
Family
ID=40540914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201092509U Expired - Lifetime CN201218078Y (en) | 2008-07-16 | 2008-07-16 | Polished rod breaking anti-blowout tool for oil pumping well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201218078Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900392A (en) * | 2012-09-03 | 2013-01-30 | 中国石油化工股份有限公司 | Controllable pumping-well blowout preventer |
| CN103061704A (en) * | 2013-01-28 | 2013-04-24 | 黄胜志 | Metal polished rod sealer with function of automatic wear compensation |
-
2008
- 2008-07-16 CN CNU2008201092509U patent/CN201218078Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900392A (en) * | 2012-09-03 | 2013-01-30 | 中国石油化工股份有限公司 | Controllable pumping-well blowout preventer |
| CN103061704A (en) * | 2013-01-28 | 2013-04-24 | 黄胜志 | Metal polished rod sealer with function of automatic wear compensation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090408 |
|
| CX01 | Expiry of patent term |