CN201486494U - Expansion pipe hanging connecting device - Google Patents
Expansion pipe hanging connecting device Download PDFInfo
- Publication number
- CN201486494U CN201486494U CN2009201730171U CN200920173017U CN201486494U CN 201486494 U CN201486494 U CN 201486494U CN 2009201730171 U CN2009201730171 U CN 2009201730171U CN 200920173017 U CN200920173017 U CN 200920173017U CN 201486494 U CN201486494 U CN 201486494U
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- China
- Prior art keywords
- expansion
- hanging
- tube
- desilting
- giving
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to an expansion pipe hanging connecting device, which is a special tool for drilling petroleum and hanging well completion tail pipes, wherein an expansion cone connecting rod is connected with an expansion cone, an expansion pipe is hung on the expansion cone through a cone surface of the inner wall, and a desilting bull nose component is connected on the tail end of the expansion pipe through threads. The desilting bull nose component substantially comprises a hanging short section, a release short section, a desilting cylinder and a bull nose, wherein the inner wall of the upper portion of the hanging short section is provided with left-hand threads, and is connected with the release short section. The release short section is fixed in the hanging short section, the outer wall of the release short section is provided with left-hand (left-lateral) threads, and is connected with the hanging short section. The upper end of the release short section is provided with cone pipe inner threads, and the lower end of the release short section is provided with right-hand threads, which are used to hang tail pipes or other well completion columns. The expansion pipe hanging connecting device has the beneficial effects that the expansion pipe is used as a hanger, and the hanging of the expansion pipe has the characteristics of large path and firm sitting and hanging. The expansion pipe hanging connecting device can be convenient to trip in subsequent underground operation tools, and is firmer to sit and hang than a conventional type tail pipe hanger simultaneously.
Description
Technical field
The utility model relates to oil drilling, completion technique field, and particularly a kind of special tool of drilling completion tail tube hanging is a kind of shaft column suspension connection device.
Background technology
The extension hanger that uses on the petroleum oil well completion tubing string has mechanical type extension hanger or fluid pressure type extension hanger.Drilling rod lower end union tail hanger, extension hanger lower end union tail (casing string), go into after well and extension hanger put in place when completion tubular column, utilize machine power or hydraulic pressure that the slip insert on the hanger is opened and be adjacent on outer protective casing inwall, slip insert can hang tail pipe weight.Finish suspension back cementing well at extension hanger.
At present, when using conventional mechanical formula or fluid pressure type extension hanger to form suspension tail pipe post, suspended screen tubing string, because the hanger structure needs, the restriction of radial dimension own makes that the interior latus rectum of hanger is smaller.After finishing tail tube hanging, because the interior latus rectum of hanger is little, its also corresponding being restricted of interior latus rectum of tubing string such as the tail pipe that hangs or screen casing, in addition, because the interior latus rectum of hanger is little, in oil recovery process, in the well workover, well logging process, the bigger downhole instrument of external diameter can't be by in the interior latus rectum of hanger, for later oil well well logging, recover the oil and bring a lot of difficult problems.
The utility model content
The purpose of this utility model provides a kind of expansion tube suspension connection device, based on bulged tube technology, forms the suspension to sleeve pipe or tubing string, increases the internal diameter after hanging, and makes things convenient for being lowered to of oil well subsequent job instrument.
The technical solution adopted in the utility model is: the expansion tube suspension connection device, mainly comprise blocking component and expansion cone connecting rod at the bottom of expansion tube, expansion cone, the sand setting, the annexation of four parts: the expansion cone connecting rod is connected with expansion cone by jump ring, expansion tube is suspended on the expansion cone by the conical surface of inwall, and blocking component is by being threaded in the expansion tube tail end at the bottom of the desilting.Wherein parts expansion tube, expansion cone and expansion cone connecting rod are the basic structure of using expansion tube at present, and those skilled in the art can finish, and are not described in detail, and do not do requirement in this patent.
It is characterized in that: mainly by stifled composition of hanging pup joint, the pipe nipple of giving up, desilting tube and the end, hanging pup joint is cylindric to blocking component at the bottom of the sand setting, and the external wall of upper portion of hanging pup joint has right-handed thread, can be connected the lower end of expansion tube.Upper inside wall at hanging pup joint has left-hand thread (left-handed) screw thread, can be connected with the pipe nipple of giving up.Lower inner wall at hanging pup joint has screw thread, can be connected with the top of sleeve pipe tubing string.
Be fixed with the pipe nipple of giving up in hanging pup joint, the pipe nipple outer wall of giving up has left-hand thread (left-handed) screw thread, can be connected with hanging pup joint.In the pipe nipple upper end of giving up the Taper Pipe internal thread is arranged.In the pipe nipple lower end of giving up right-handed thread is arranged, be used to hang tail pipe or other completion tubular column.
Screw thread is connected with the desilting tube in the lower end of the pipe nipple of giving up, and the desilting tube is cylindric, and there is external screw thread desilting tube upper end, is connected the pipe nipple lower end of giving up.It is stifled that desilting tube lower end connects the end.
The end is stifled to be circle main body shape, and the end is blocked up external screw thread, and block up and is connected desilting tube lower end at the end, with the lower end shutoff of desilting tube.Block up and can be welded on desilting tube lower end at the end; The end is stifled can also to be made as one with the desilting tube.
Operation procedure of the present utility model is as follows: consult Fig. 1.
1) tubing string is gone into well: oil pipe or drilling rod connect this tubing string, and hanging pup joint 5 tail ends connect the pipe nipple or the completion tubular column that will hang, and go into well to the precalculated position;
2) hang and set: expansion is suppressed on ground, hydraulic coupling drives expansion cone 2, it is up to drive expansion cone connecting rod 4 and top oil pipe or drilling rod, swelling part expansion tube 1, with its hole enlargement, the metal boss of expansion tube outside or packing element are adjacent to the inwall at outer layer sleeve at this moment, form and hang and sealing, until finishing whole expansions, expansion cone 2 and expansion cone connecting rod 4 are given up, and pull out of hole;
3) salvage: oil pipe or drilling rod are linked to each other with junk sub on ground, the junk sub end is the oil pipe pin thread that mates with the pipe nipple 6 of giving up, tubing string is gone into the tubing thread position of well to the pipe nipple 6 of giving up, just changeing and going up button, junk sub is connected with the pipe nipple 6 of giving up, continues positive tube post, the left-handed button of giving up between pipe nipple 6 and the hanging pup joint 5 is untied until rotation torque, tubing string carries stifled 8 trip-outs in part outstanding give up pipe nipple 6, desilting tube 7 and the end, finishes whole flow charts.
After flow chart was finished, hanging pup joint 5 tail ends connected pipe nipple or other completion tubular column, and parts expansion tube 1 is the path of hanging pup joint 5 left-handed buttons with the minimum diameter of hanging pup joint 5 positions.
The beneficial effects of the utility model: utilize the expansion tube suspension connection device, after finishing the suspension operation of well cementation completion tubular column, blocking component has substituted general screw thread plug structure at the bottom of the sand setting, the minimum diameter of expansion tube and hanging pup joint position is the path of the left-handed button of hanging pup joint, and this internal diameter is bigger than the internal diameter that conventional tail pipe hanger forms after hanging.Compare with conventional tail tube hanging, expansion tube hangs has the advantages that latus rectum is big, the seat extension is firm.Increase the internal diameter after hanging, can make things convenient for entering of subsequent job instrument.As hanger, the lower end connects other completion tubular column to the utility model with expansion tube, has realized the latus rectum bigger than the conventional tail pipe hanger.It is more firm to sit extension than conventional formula extension hanger simultaneously, and seat extension position does not produce damage to the upper level sleeve pipe.
Description of drawings
Fig. 1 is the utility model expansion tube suspension connection device structural profile schematic diagram.
Fig. 2 is the structural profile schematic diagram of blocking component 3 at the bottom of the sand setting.
Wherein, 1. expansion tube, 2. expansion cone, 3. blocking component at the bottom of the sand setting, 4. expansion cone connecting rod, 5. hanging pup joint, the pipe nipple of 6. giving up, 7. desilting tube, 8. the end, is stifled.
The specific embodiment
Embodiment 1: with 7 " the expansion tube suspension connection device that uses in the sleeve pipe is example, utility model is described in further detail.Be about to the utility model 7 " hang completion tubular column such as screen casing in the sleeve pipe.7 " external diameter of expansion tube 1 is Φ 146mm in the sleeve pipe (internal diameter is Φ 159.4mm), and internal diameter is Φ 130mm.
Consult Fig. 1.The expansion tube suspension connection device, mainly comprise blocking component 3 and expansion cone connecting rod 4 at the bottom of expansion tube 1, expansion cone 2, the sand setting, the annexation of four parts: expansion cone connecting rod 4 is connected with expansion cone 2 by jump ring, expansion tube is suspended on the expansion cone 2 by the conical surface of inwall, and blocking component 3 is by being threaded in the expansion tube tail end at the bottom of the desilting.The external diameter of expansion cone 2 is Φ 141mm, and the expansion chamber internal diameter that holds expansion cone 2 is Φ 141mm, external diameter Φ 154mm.
Consult Fig. 2.Blocking component 3 mainly is made up of hanging pup joint 5, the pipe nipple 6 of giving up, desilting tube 7 and the end stifled 8 at the bottom of the sand setting, and hanging pup joint 5 is cylindric, and the external wall of upper portion of hanging pup joint 5 has right-handed thread, is connected the lower end of expansion tube 1.Upper inside wall at hanging pup joint 5 has left-hand thread (left-handed) screw thread, and pipe nipple 6 is connected with giving up.Lower inner wall at hanging pup joint 5 has screw thread, is connected with the top of sleeve pipe tubing string.
Be fixed with the pipe nipple 6 of giving up in hanging pup joint 5, the pipe nipple 6 left-handed buttons of giving up are T127X3, and height of thread is 1mm, and promptly the path of this screw thread is Φ 125mm.Pipe nipple 6 outer walls of giving up have left-hand thread (left-handed) screw thread, are connected with hanging pup joint 5.In pipe nipple 6 upper ends of giving up the Taper Pipe internal thread is arranged.In pipe nipple 6 lower ends of giving up right-handed thread is arranged.
Lower end screw thread at the pipe nipple 6 of giving up is connected with desilting tube 7, and desilting tube 7 is cylindric, and there is external screw thread desilting tube 7 upper ends, is connected pipe nipple 6 lower ends of giving up.Desilting tube 7 lower ends connect the end stifled 8.
The end stifled 8, be circle main body shape, and there is external screw thread at the end stifled 8, and the end stifled 8 is threaded in desilting tube 7 lower ends, with the lower end shutoff of desilting tube 7.
After finishing expansion tube and hanging flow chart, the minimum diameter of this expansion tube suspension connection device is 125mm, considers that the radial dimension of part also can further reduce, and this expansion tube suspension connection device is expected operation is finished after acquisition greater than the internal diameter of 125mm.General 7 " extension hanger that uses in the sleeve pipe is finished its internal diameter of suspension back usually less than 121mm, and the maximum inner diameter that uses the conventional tail pipe hanger to obtain at present is 124mm.The utility model has greater advantage by comparison, owing to can obtain more large diameter, application of the present utility model can make things convenient for the follow-up well operations of going into.
Embodiment 2: with the embodiment difference is to be welded on desilting tube 7 lower ends or the end stifled 8 and desilting tube 7 end stifled 8 to be made as one.
Claims (3)
1. expansion tube suspension connection device, mainly comprise blocking component (3) and expansion cone connecting rod (4) at the bottom of expansion tube (1), expansion cone (2), the sand setting, the annexation of four parts: expansion cone connecting rod (4) is connected with expansion cone (2) by jump ring, expansion tube is suspended on the expansion cone (2) by the conical surface of inwall, blocking component at the bottom of the desilting (3) is by being threaded in the expansion tube tail end
It is characterized in that: blocking component at the bottom of the sand setting (3) mainly is made up of hanging pup joint (5), the pipe nipple of giving up (6), desilting tube (7) and the end stifled (8), hanging pup joint (5) is cylindric, the external wall of upper portion of hanging pup joint (5) has right-handed thread, upper inside wall at hanging pup joint (5) has the left-hand thread screw thread, be connected with the pipe nipple of giving up (6), lower inner wall at hanging pup joint (5) has screw thread, is connected with the top of sleeve pipe tubing string;
In hanging pup joint (5), be fixed with the pipe nipple of giving up (6), pipe nipple (6) outer wall of giving up has the left-hand thread screw thread, is connected with hanging pup joint (5), in the pipe nipple of giving up (6) upper end the Taper Pipe internal thread is arranged, in the pipe nipple of giving up (6) lower end right-handed thread is arranged, be used to hang tail pipe or other completion tubular column;
Lower end screw thread at the pipe nipple of giving up (6) is connected with desilting tube (7), and desilting tube (7) is cylindric, and there is external screw thread desilting tube (7) upper end, is connected the pipe nipple of giving up (6) lower end, and desilting tube (7) lower end connects the end stifled (8);
The end stifled (8), be circle main body shape, and stifled (8) have external screw thread at the end, and stifled (8) are connected desilting tube (7) lower end at the end, with the lower end shutoff of desilting tube (7).
2. expansion tube suspension connection device according to claim 1 is characterized in that: stifled (8) are welded on desilting tube (7) lower end at the end.
3. expansion tube suspension connection device according to claim 1 is characterized in that: the end stifled (8) and desilting tube (7) are made as one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201730171U CN201486494U (en) | 2009-08-19 | 2009-08-19 | Expansion pipe hanging connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201730171U CN201486494U (en) | 2009-08-19 | 2009-08-19 | Expansion pipe hanging connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201486494U true CN201486494U (en) | 2010-05-26 |
Family
ID=42425376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201730171U Expired - Lifetime CN201486494U (en) | 2009-08-19 | 2009-08-19 | Expansion pipe hanging connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201486494U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314494A (en) * | 2014-10-31 | 2015-01-28 | 中国石油天然气股份有限公司 | Hanger for screen pipe or tail pipe |
| CN104481443A (en) * | 2014-12-08 | 2015-04-01 | 北京盛隆源科技开发有限公司 | Fishable lower seal head device of expansion pipe |
| CN104747110A (en) * | 2013-12-31 | 2015-07-01 | 中国石油化工集团公司 | Expansion casing positioning device |
| CN114837601A (en) * | 2021-02-01 | 2022-08-02 | 中国石油天然气集团有限公司 | Expansion pipe tool system and emergency treatment method for plugging expansion pipe open hole well |
-
2009
- 2009-08-19 CN CN2009201730171U patent/CN201486494U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747110A (en) * | 2013-12-31 | 2015-07-01 | 中国石油化工集团公司 | Expansion casing positioning device |
| CN104314494A (en) * | 2014-10-31 | 2015-01-28 | 中国石油天然气股份有限公司 | Hanger for screen pipe or tail pipe |
| CN104481443A (en) * | 2014-12-08 | 2015-04-01 | 北京盛隆源科技开发有限公司 | Fishable lower seal head device of expansion pipe |
| CN104481443B (en) * | 2014-12-08 | 2017-08-22 | 北京盛隆源科技开发有限公司 | Salvagable expansion tube low head device |
| CN114837601A (en) * | 2021-02-01 | 2022-08-02 | 中国石油天然气集团有限公司 | Expansion pipe tool system and emergency treatment method for plugging expansion pipe open hole well |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100526 |