CN202064885U - Step cementing device without drilling plug - Google Patents
Step cementing device without drilling plug Download PDFInfo
- Publication number
- CN202064885U CN202064885U CN2011201249329U CN201120124932U CN202064885U CN 202064885 U CN202064885 U CN 202064885U CN 2011201249329 U CN2011201249329 U CN 2011201249329U CN 201120124932 U CN201120124932 U CN 201120124932U CN 202064885 U CN202064885 U CN 202064885U
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- outer sliding
- shear pin
- cementing device
- stage cementing
- Prior art date
- 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 - Fee Related
Links
- 238000005553 drilling Methods 0.000 title description 2
- 239000004568 cement Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a do not bore stopper stage cementing ware, including the body, close the cover, the lower clutch still includes shear pin, navigation key, outer sliding sleeve and inner sliding sleeve, wherein, body upper end and sleeve pipe threaded connection, the body lower extreme with the upper end threaded connection of lower clutch sets up respectively by interior and outside in the inner chamber of body inner sliding sleeve, closing cover and outer sliding sleeve, the shear pin runs through in inner sliding sleeve, closing cover and outer sliding sleeve and the top stretch into the shear pin groove that sets up on the body, the navigation key is located the navigation key hole on the outer sliding sleeve, the bottom of navigation key is sat on closing the location keyway of sheatheeing in. Adopt the utility model discloses, after the well cementation operation, need not bore the cement plug, simplified the well cementation and completion construction processes, the expense is reduced.
Description
Technical field
The utility model relates to the petroleum oil well completion cementing tool, particularly a kind of plug stage cementing device that do not bore.
Background technology
Existing stage cementing device, as publication number is 201193500, the Chinese patent literature that open day is on February 11st, 2009 discloses a kind of stage cementing device, comprise top connection, snap, close cover, adapter sleeve, open cover, lower contact, it is characterized in that described adapter sleeve upper end is connected with top connection, the lower end is connected with lower contact, and inner chamber is equipped with in turn closes cover and open cover.The utlity model has mechanical closing, do not need to bore plug after well cementation finishes, can directly carry out the characteristics of follow-up various technological measures, extensive use in oil exploitation cementing well-completing process.
Above-mentioned stage cementing device Gu must utilize the bradawl tool bore to remove shut-off plug after the completion, close seat and gravity is opened accessories such as plug, so just has following deficiency: the one, must Shang time little drilling tool, increased working procedure and prolonged completion period; The 2nd, bore to remove after operation finishes, in cementing device, form irregular step and burr, and, reduced latus rectum owing to bore and remove operation, the underground work instrument by the time bump extension, damage packing element etc.; The 3rd, when boring plug, because annular space cement does not solidify gluing fully, the collision of boring plug can influence the bonding quality of annular space cement.
The utility model content
For solving the problems of the technologies described above, the utility model proposes a kind of stage cementing device that does not bore plug, adopt the utility model, well cementing operation need not be bored except that cement plug after finishing, and has simplified solid completion working procedure, has reduced expense.
The utility model is realized by adopting following technical proposals:
A kind of plug stage cementing device that do not bore, comprise body, close cover, lower contact, it is characterized in that: also comprise shear pin, positioning key, outer sliding sleeve and inner sliding sleeve, wherein, described body upper end is connected with casing threads, the body lower end is threaded with the upper end of described lower contact, and described inner sliding sleeve from inside to outside is set respectively in the inner chamber of body, close cover and outer sliding sleeve, shear pin runs through described inner sliding sleeve, closing cover and outer sliding sleeve and top stretches in the shear pin groove that is provided with on the body, positioning key is positioned at the location keyhole on the outer sliding sleeve, and the bottom of positioning key is seated to be closed on the positioning spline that puts.
Also comprise the anti-screw that revolves that is arranged on body lower end and lower contact upper end connection of thread.
Close and overlap between inner sliding sleeve and outer sliding sleeve, be fastened by shear pin.
Outer sliding sleeve places chamber body, holds out against by jackscrew, and seal and retaining jump ring are installed on the outer sliding sleeve, and there is circulation port the lower end, and the retaining jump ring places in the jump ring groove of outer sliding sleeve lower end.
Inner sliding sleeve places the outer sliding sleeve inner chamber, be fastened by shear pin and outer sliding sleeve, and be provided with circulation port, and the top internal diameter is equipped with seal greater than the bottom internal diameter on it.
Compared with prior art, the beneficial effects of the utility model show:
The main cement device that the utility model adopts " body; close cover, lower contact, shear pin; positioning key, outer sliding sleeve and inner sliding sleeve " to form, well cementing operation need not be bored except that cement plug after finishing, and simplifies solid completion working procedure, the reduction expense, and inside and outside sliding sleeve flexible movements, accurate, safe, sealing is reliable.
Description of drawings
The utility model is described in further detail below in conjunction with specification drawings and specific embodiments, wherein:
Fig. 1 is a structural representation of the present utility model
Among the figure: 1, body 2, close cover 3, shear pin 4, positioning key 5, outer sliding sleeve 6, inner sliding sleeve 7, jackscrew 8, retaining jump ring 9, anti-ly revolve screw 10, lower contact.
The specific embodiment:
Consult accompanying drawing, a kind of plug stage cementing device that do not bore, it comprises body 1, close cover 2, shear pin 3, positioning key 4, outer sliding sleeve 5, inner sliding sleeve 6, jackscrew 7, retaining jump ring 8, anti-ly revolve screw 9, lower contact 10.Body 1 upper end is connected with petroleum casing pipe by screw thread, and body 1 lower end is connected by screw thread with the upper end of lower contact 10, and fastening by preventing revolving screw 9.Inner sliding sleeve 6, close cover 2, outer sliding sleeve 5 places body 1 inner chamber successively, shear pin 3 runs through inner sliding sleeve 6, close cover 2 and outer sliding sleeve 5 and top stretches in the shear pin groove of body 1, positioning key 4 is positioned at the location keyhole on the outer sliding sleeve 5, and the bottom is seated on the positioning spline of closing on the cover 2.Jackscrew 7 is used for fastening body 1 and outer sliding sleeve 6, and the relatively rotating and the position of restriction body 1 and outer sliding sleeve 6, and retaining jump ring 8 places in the jump ring groove of outer sliding sleeve 5 lower ends.
Claims (5)
1. one kind is not bored the plug stage cementing device, comprise body, close cover, lower contact, it is characterized in that: also comprise shear pin, positioning key, outer sliding sleeve and inner sliding sleeve, wherein, described body upper end is connected with casing threads, the body lower end is threaded with the upper end of described lower contact, and described inner sliding sleeve from inside to outside is set respectively in the inner chamber of body, close cover and outer sliding sleeve, shear pin runs through described inner sliding sleeve, closing cover and outer sliding sleeve and top stretches in the shear pin groove that is provided with on the body, positioning key is positioned at the location keyhole on the outer sliding sleeve, and the bottom of positioning key is seated to be closed on the positioning spline that puts.
2. the plug stage cementing device that do not bore according to claim 1 is characterized in that: also comprise the anti-screw that revolves that is arranged on body lower end and lower contact upper end connection of thread.
3. the plug stage cementing device that do not bore according to claim 1 is characterized in that: close and overlap between inner sliding sleeve and outer sliding sleeve, be fastened by shear pin.
4. the plug stage cementing device that do not bore according to claim 1, it is characterized in that: outer sliding sleeve places chamber body, holds out against by jackscrew, and seal and retaining jump ring are installed on the outer sliding sleeve, there is circulation port the lower end, and the retaining jump ring places in the jump ring groove of outer sliding sleeve lower end.
5. the plug stage cementing device that do not bore according to claim 1, it is characterized in that: inner sliding sleeve places the outer sliding sleeve inner chamber, be fastened by shear pin and outer sliding sleeve, and be provided with circulation port, and the top internal diameter is equipped with seal greater than the bottom internal diameter on it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201249329U CN202064885U (en) | 2011-04-26 | 2011-04-26 | Step cementing device without drilling plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201249329U CN202064885U (en) | 2011-04-26 | 2011-04-26 | Step cementing device without drilling plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202064885U true CN202064885U (en) | 2011-12-07 |
Family
ID=45058753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201249329U Expired - Fee Related CN202064885U (en) | 2011-04-26 | 2011-04-26 | Step cementing device without drilling plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202064885U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234659A (en) * | 2013-06-18 | 2014-12-24 | 中国石油天然气股份有限公司 | Drilling-free grading well cementing device |
| CN107587860A (en) * | 2017-10-31 | 2018-01-16 | 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 double sliding sleeves based on compression packer set locking mechanism |
-
2011
- 2011-04-26 CN CN2011201249329U patent/CN202064885U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234659A (en) * | 2013-06-18 | 2014-12-24 | 中国石油天然气股份有限公司 | Drilling-free grading well cementing device |
| CN104234659B (en) * | 2013-06-18 | 2016-12-28 | 中国石油天然气股份有限公司 | Drilling-free grading well cementing device |
| CN107587860A (en) * | 2017-10-31 | 2018-01-16 | 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 double sliding sleeves based on compression packer set locking mechanism |
| CN107587860B (en) * | 2017-10-31 | 2019-11-08 | 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 double sliding sleeves based on compression packer set locking mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20190426 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |