CN105201443B - A kind of blanking plug in oil pipe launched for steel wire - Google Patents
A kind of blanking plug in oil pipe launched for steel wire Download PDFInfo
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- CN105201443B CN105201443B CN201510511623.XA CN201510511623A CN105201443B CN 105201443 B CN105201443 B CN 105201443B CN 201510511623 A CN201510511623 A CN 201510511623A CN 105201443 B CN105201443 B CN 105201443B
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- blanking plug
- steel wire
- oil pipe
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Abstract
The present invention provides a kind of blanking plug in oil pipe launched for steel wire, and the blanking plug includes hollow slips axle, lock ring outer barrel and the packing element being sequentially coaxially arranged in seating nipple；Slips axle upper and lower ends set top connection and lower contact respectively, and top connection is hollow chamfering Step Shaft, and its upper end is provided with screw thread, and bottom side of the wall is provided with axial slide；The connecting pin with slips axis connection is provided with chute；Slip spider 5, the axially arranged slips 6 of slip spider 5 are coaxially disposed on slips axle 8, slips axle 8 is provided with the shelves ring 7 for being used for constraining slips 6.With prior art ratio, the blanking plug in oil pipe launched provided by the present invention for steel wire is simple in construction, easy to operate, safe and reliable, ensures safe, smooth, the efficient progress of job execution.
Description
Technical field
The present invention relates to a kind of Underwell packet apparatus, and in particular to a kind of blanking plug in oil pipe launched for steel wire.
Background technology
Oil/gas Well, it is mankind's exploration and development underground petroleum and natural gas resource essential information and substance channel.
Oil-Gas Well Engineering, it is construction, measurement and the fund and technology-intensive engineering protected and implemented around Oil/gas Well, mainly includes
Oil-gas exploration and development drilling well and Well Completion Engineering of Oil Reservoirs, oil gas well measurements and testing engineering, and Oil/gas Well protection and recovery project etc., it is
The basic link of oil-gas exploration and development.
During Oil/gas Well well workover, in order to prevent blowout, well control equipment will be installed, when overflow or blowout occurs
Moment closing well remotely can be implemented to annular space, but the blowout having is also occurred in tubing string, because oil pipe connection is fine thread connection,
Installing wellhead cock sometimes has difficulties after generation overflow, causes gas blowout accident.
Particularly often it is under well killing fluid constantly leakage state and constructs in carbonate reservoir construction, well workover, in order to
Equilibrium strata pressure is most to use " cage " methods, and blowout prevention annoyings well workover technology personnel always in tubing string during lift pipe string, particularly
When deep-well is constructed, play one-trip string and generally require for a long time, the hour of danger of blowout is present, in lift pipe string in tubing string
Bottom carries out the problem of effectively blocking is extremely urgent.
Accordingly, it is desirable to provide a kind of blanking plug in oil pipe simple in construction, easy to operate, safe and reliable, ensures that operation is applied
Safe, smooth, the efficient progress of work.
The content of the invention
In order to solve the above problems, it is an object of the invention to provide it is a kind of for steel wire launch blanking plug in oil pipe,
It is simple in construction, easy to operate, safe and reliable, ensure safe, smooth, the efficient progress of job execution.
The purpose of the present invention is realized using following technical proposals：
A kind of blanking plug in oil pipe launched for steel wire provided by the invention, it is theed improvement is that, the blanking plug
Including hollow slips axle 8, lock ring outer barrel 10 and the packing element 12 being sequentially coaxially arranged in seating nipple 1；The slips axle is two about 8
It is hollow chamfering Step Shaft that end sets top connection 2 and lower contact 14, the top connection 2 respectively, and its upper end is provided with screw thread, lower end
Side wall is provided with axial slide；The connecting pin 3 being connected with slips axle 8 is provided with the chute；Card is coaxially disposed on the slips axle 8
Watt seat 5, the axially arranged slips 6 of slip spider 5, the slips axle 8 are provided with the shelves ring 7 for being used for constraining slips 6.
First optimal technical scheme provided by the invention is that the slip spider 5 is the hollow straight tube that side wall is provided with screwed hole,
The hole of its internal axially arranged increasing diameter；The radially equidistant interval setting square hole in the lower end of slip spider 5；Set in the screwed hole
Put and cut off 4 with what slips axle 8 was connected；The square hole sets axial slips 6.
Second optimal technical scheme provided by the invention is that the surfaces externally and internally of the upper end of slips 6 is plane；Its lower end
Inner surface be the conical surface, outer surface is provided with the upward ratchet of crown.
3rd optimal technical scheme provided by the invention is that the lower end of slips axle 8 is taper and its outer wall sets spiral shell
Line, the upper end inwall of lock ring outer barrel 10 are provided with the screw thread to match with the lower end outer wall screw thread of slips axle 8.
4th optimal technical scheme provided by the invention is that the top connection 2 is hollow chamfering Step Shaft, and its upper end is set
There is screw thread, bottom side of the wall is provided with axial slide；The connecting pin 3 being connected with slips axle 8 is provided with the chute.
5th optimal technical scheme provided by the invention is, the lower end of lock ring outer barrel 10 is taper, and spaced radial
It is equidistant to set pin 11 provided with what is be connected with lower contact 14.
6th optimal technical scheme provided by the invention is, interval is placed equidistant spacer ring 13 on the packing element 12, it is described every
The upper and lower end face of ring 13 is inner conical surface.
7th optimal technical scheme provided by the invention is that lock ring 9 is provided between the slips axle 8 and lower contact 14；Institute
State the inwall of lock ring 9 and be respectively equipped with the screw thread to match with the outer wall of lower contact 14.
8th optimal technical scheme provided by the invention is that the lock ring 9 is c-shaped opening ring.
9th optimal technical scheme provided by the invention is that the seating nipple 1 is arranged in tubing string, its upper and lower ends point
Tubing thread is not set, and lower end inner wall is provided with undergauge.
With immediate prior art ratio, the present invention has the advantages that：
1st, the blanking plug in oil pipe launched provided by the present invention for steel wire, it is simple to operate, it is necessary to sit after steel wire dispensing
The closure to oil pipe can be achieved in downward jarring top connection during envelope.
2nd, the blanking plug in oil pipe launched provided by the present invention for steel wire, plugging effect is good, after blanking plug is set, leads to
Crossing lock ring can keep packing element to compress.
3rd, the blanking plug in oil pipe launched provided by the present invention for steel wire, using 4 uniform slips, and slips crown
There is direction, after closure, when upper pressure is more than low pressure, slips, slips axle, lock ring can move down, and enable packing element more preferable
Compression；When low pressure is more than upper pressure, lower contact, packing element, slips axle move up, and make slips occlusion more preferable.
4th, the blanking plug in oil pipe launched provided by the present invention for steel wire, it is simple in construction, easy to operate, safe and reliable,
Not only there is very high economy, but also there are wide market prospects.
Brief description of the drawings
Fig. 1：The positive structure diagram for the blanking plug in oil pipe launched provided by the present invention for steel wire；
Fig. 2：The mplifying structure schematic diagram of lock ring provided by the invention；
Fig. 3：The mplifying structure schematic diagram of slips provided by the invention；
Wherein：1st, seating nipple；2nd, top connection；3rd, connecting pin；4th, cut off；5th, slip spider；6th, slips；7th, shelves ring；8th, slips
Axle；9th, lock ring；10th, lock ring outer barrel；11st, pin is set；12nd, packing element；13 spacer rings；14th, lower contact.
Embodiment
The embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
Exemplified by the blanking plug in oil pipe provided in an embodiment of the present invention launched for steel wire, as shown in Figures 1 to 3, including according to
Secondary hollow slips axle 8, lock ring outer barrel 10 and the packing element 12 being co-axially located in seating nipple 1；The upper and lower ends of slips axle 8 are set respectively
Top connection 2 and lower contact 14, and lower contact 14 is through being arranged in lock ring outer barrel 10 and packing element 12：Coaxially set on slips axle 8
Slip spider 5 is put, slip spider 5 sets axial slips 6, and slips axle 8 is provided with the shelves ring 7 for being used for constraining slips 6.Top connection 2 is hollow
Chamfering Step Shaft, its upper end be provided with screw thread can be connected with steel wire instrument, bottom side of the wall is provided with axial slide, in chute
The connecting pin 3 being connected with slips axle 8 is installed, connecting pin 3 is straight pole.Slip spider 5 is the hollow straight tube that side wall is provided with screwed hole,
The hole of its internal axially arranged increasing diameter, the lower end of slip spider 5 is radially equidistant to be arranged at intervals 4 square holes, in screwed hole installation with
What slips axle 8 connected cuts off 4, cuts off 4 to be copper, one end is screw thread, and one end is straight pole；Square hole sets axial slips 6, slips
6 tops are arranged in slip spider 5, and bottom can be slided on slips axle 8.The surfaces externally and internally of the upper end of slips 6 is plane；Its lower end
Inner surface be the conical surface, outer surface is provided with the upward ratchet of crown, instantly fashionable, jarring from the top down, is advantageous to slips 6 and card
Watt axle 8 moves downward, and is easy to packing element 12 to set, when low pressure is more than upper pressure, lower contact 14, packing element 12, slips axle 8
There is upward movement tendency, be advantageous to the occlusion of slips 6.The lower end of slips axle 8 is taper and its outer wall is threaded, lock ring outer barrel
10 upper end inwalls are provided with the screw thread to match with the lower end outer wall screw thread of slips axle 8.The lower end of lock ring outer barrel 10 is taper, and radially
Interval equidistantly sets pin 11 provided with what is be connected with lower contact 14, sets pin 11 to be copper, one end is external screw thread, and one end is straight
Pole.Interval is placed equidistant the spacer ring 13 that upper and lower end face is inner conical surface on the packing element 12 for hollow rubber cylinder.Slips axle 8 with
Lock ring 9 is provided between lower contact 14；Lock ring 9 is c-shaped opening ring, and its inwall is respectively equipped with the spiral shell to match with the outer wall of lower contact 14
Line.
Wherein, seating nipple 1 is arranged in tubing string, and its upper and lower ends sets tubing thread respectively, and lower end inner wall is provided with undergauge.
Embodiment 1
First, lower contact 14 is clamped on vice, by packing element 12, spacer ring 13, packing element 12 successively from the upper of lower contact 14
Portion loads, and lock ring outer barrel 10 is loaded from the top of lower contact 14, and installation sets pin 11, lock ring 9 from the top of lower contact 14
Push-in, and be connected with the serration screw thread in lower contact 14, clamping lock ring outer barrel 10, slips axle 8 is connected to lock ring outer barrel 10,
Slips 6 is installed to the inside of slip spider 5, slip spider 5 and slips 6 are loaded from the top of slips axle 8, installation shelves ring 7 arrives slips axle 8
On, stationary slip 6, installation cuts off 4 into the screwed hole of slip spider 5, top connection 2 is set on slips axle 8, from top connection 2
In chute, connecting pin 3 is installed in slips axle 8, blanking plug is completed.
Secondly, the top connection 2 of blanking plug is connected with steel wire tripping in instrument, when blanking plug is lowered into precalculated position in well,
Needed in servant's tubing string and be located undergauge with what lower contact 14 was engaged, downward jarring top connection 2, top connection 2 is in slips
Simultaneously slamming down slip spider 5, while cut off 4 is slided on axle 8；Slip spider 5 drives slips 6 and slips axle 8 to move downward, with
The lock ring outer barrel 10 that slips axle 8 connects compresses downwards packing element 12, meanwhile, lock ring 9 is locked in lower contact 14, keeps packing element 12
Compressive state；By multiple jarring, 12 complete compression-expansion of packing element can be made, by the space sealing in oil pipe, slips 6 is snapped to
On tube inner wall, you can reach the purpose of closure oil pipe.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, institute
Category field it is to be appreciated by one skilled in the art that with reference to above-described embodiment can to the present invention embodiment modify
Or equivalent substitution, without departing from any modification of spirit and scope of the invention or equivalent substitution, it all should cover at this for these
Within the claims of invention.
Claims (9)
- A kind of 1. blanking plug in oil pipe launched for steel wire, it is characterised in that：The blanking plug includes sequentially coaxially being arranged on Hollow slips axle (8), lock ring outer barrel (10) and packing element (12) in seating nipple (1)；Slips axle (8) upper and lower ends are set respectively Top connection (2) and lower contact (14) are put, the top connection (2) is hollow chamfering Step Shaft, and its upper end is provided with screw thread, lower end side Wall is provided with axial slide；The connecting pin (3) being connected with slips axle (8) is provided with the chute；Coaxially set on the slips axle (8) Slip spider (5), the axially arranged slips of the slip spider (5) (6) are put, the slips axle (8) is provided with the shelves for being used for constraining slips (6) Ring (7).
- 2. the blanking plug in oil pipe launched as claimed in claim 1 for steel wire, it is characterised in that the slip spider (5) is Side wall is provided with the hollow straight tube of screwed hole, the hole of its internal axially arranged increasing diameter；Slip spider (5) lower end is radially equidistant It is arranged at intervals square hole；Set in the screwed hole and cut off (4) with what slips axle (8) was connected；The square hole sets axial slips (6)。
- 3. the blanking plug in oil pipe launched as claimed in claim 2 for steel wire, it is characterised in that slips (6) upper end Surfaces externally and internally be plane；The inner surface of its lower end is the conical surface, and outer surface is provided with the upward ratchet of crown.
- 4. the blanking plug in oil pipe launched as claimed in claim 3 for steel wire, it is characterised in that under the slips axle (8) Hold and be threaded for taper and its outer wall, lock ring outer barrel (10) upper end inwall be provided with outside slips axle (8) lower end The screw thread that wall screw thread matches.
- 5. the blanking plug in oil pipe launched as claimed in claim 1 for steel wire, it is characterised in that the lower contact (14) is passed through Wear and be arranged in lock ring outer barrel (10) and packing element (12)；Lock ring outer barrel (10) lower end is taper, and spaced radial is equidistantly provided with and sets pin with what lower contact (14) was connected (11)。
- 6. the blanking plug in oil pipe launched as claimed in claim 5 for steel wire, it is characterised in that between on the packing element (12) Every being placed equidistant spacer ring (13), the upper and lower end face of the spacer ring (13) is inner conical surface.
- 7. as claimed in claim 6 for steel wire launch blanking plug in oil pipe, it is characterised in that the slips axle (8) with Lock ring (9) is provided between lower contact (14)；Lock ring (9) inwall is respectively equipped with the spiral shell to match with lower contact (14) outer wall Line.
- 8. the blanking plug in oil pipe launched as claimed in claim 7 for steel wire, it is characterised in that the lock ring (9) is C-shaped Split ring.
- 9. the blanking plug in oil pipe launched as claimed in claim 1 for steel wire, it is characterised in that the seating nipple (1) sets Put in tubing string, its upper and lower ends sets tubing thread respectively, and lower end inner wall is provided with undergauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510511623.XA CN105201443B (en) | 2015-08-19 | 2015-08-19 | A kind of blanking plug in oil pipe launched for steel wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510511623.XA CN105201443B (en) | 2015-08-19 | 2015-08-19 | A kind of blanking plug in oil pipe launched for steel wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105201443A CN105201443A (en) | 2015-12-30 |
| CN105201443B true CN105201443B (en) | 2018-02-23 |
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ID=54949356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510511623.XA Active CN105201443B (en) | 2015-08-19 | 2015-08-19 | A kind of blanking plug in oil pipe launched for steel wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105201443B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780874B (en) * | 2016-08-26 | 2023-11-28 | 中国石油天然气股份有限公司 | Pressure controlled blanking plug |
| CN115749666B (en) * | 2022-11-01 | 2023-04-07 | 四川圣诺油气工程技术服务有限公司 | Underground ratchet type blanking plug |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2143542C1 (en) * | 1998-01-12 | 1999-12-27 | Акционерное общество "Татнефть" Татарский научно-исследовательский и проектный институт нефти | Packer for closing internal space in pipe string |
| CN201972658U (en) * | 2011-01-17 | 2011-09-14 | 王秀忠 | Blanking plug in oil pipe |
| CN102561988A (en) * | 2012-01-18 | 2012-07-11 | 中国石油天然气股份有限公司 | Small-diameter water-swelling setting plug |
| CN203308426U (en) * | 2013-04-28 | 2013-11-27 | 中国石油化工股份有限公司江汉油田分公司采油工艺研究院 | High-pressure-resistant removable oil pipe blanking plug |
| CN204327032U (en) * | 2014-11-10 | 2015-05-13 | 中国石油化工股份有限公司 | A kind of blanking plug and use the blowout prevention assembly of this blanking plug |
| CN205047187U (en) * | 2015-08-19 | 2016-02-24 | 新疆华油油气工程有限公司 | A blanking plug in oil pipe for steel wire is put in |
-
2015
- 2015-08-19 CN CN201510511623.XA patent/CN105201443B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2143542C1 (en) * | 1998-01-12 | 1999-12-27 | Акционерное общество "Татнефть" Татарский научно-исследовательский и проектный институт нефти | Packer for closing internal space in pipe string |
| CN201972658U (en) * | 2011-01-17 | 2011-09-14 | 王秀忠 | Blanking plug in oil pipe |
| CN102561988A (en) * | 2012-01-18 | 2012-07-11 | 中国石油天然气股份有限公司 | Small-diameter water-swelling setting plug |
| CN203308426U (en) * | 2013-04-28 | 2013-11-27 | 中国石油化工股份有限公司江汉油田分公司采油工艺研究院 | High-pressure-resistant removable oil pipe blanking plug |
| CN204327032U (en) * | 2014-11-10 | 2015-05-13 | 中国石油化工股份有限公司 | A kind of blanking plug and use the blowout prevention assembly of this blanking plug |
| CN205047187U (en) * | 2015-08-19 | 2016-02-24 | 新疆华油油气工程有限公司 | A blanking plug in oil pipe for steel wire is put in |
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| Publication number | Publication date |
|---|---|
| CN105201443A (en) | 2015-12-30 |
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