CN101666215B - Sleeve pipe tieback device - Google Patents
Sleeve pipe tieback device Download PDFInfo
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- CN101666215B CN101666215B CN2009100939146A CN200910093914A CN101666215B CN 101666215 B CN101666215 B CN 101666215B CN 2009100939146 A CN2009100939146 A CN 2009100939146A CN 200910093914 A CN200910093914 A CN 200910093914A CN 101666215 B CN101666215 B CN 101666215B
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- tieback
- plug
- sealing plug
- tube
- sleeve pipe
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Abstract
The invention provides a sleeve pipe tieback device which comprises a tieback cylinder, a change-over plug, a centralizer, a tieback seal plug, a tieback extending pipe and a guide shoe, wherein the tieback cylinder is arranged at the upper end of a tail pipe at the lower part; the change-over plug is a hollow plug with double female buckles and a single male buckle; an upper joint of the change-over plug is connected with a pipe column at the upper part; a lower joint of the change-over plug is connected with the tieback extending pipe; the external diameter of the lower joint of the change-over plug is the male buckle connected with the tieback seal plug; the relative position between the tieback extending pipe and the tieback cylinder is fixed in such a way that the centralizer is sleeved between the tieback extending pipe and the tieback seal plug; the guide shoe is arranged at the lower end of the tieback extending pipe; and the other end of the guide shoe is provided with a tip. The sleeve pipe tieback device realizes the tieback of the single tieback cylinder by the structural design of the change-over plug and the centralizer, thereby greatly reducing the realizing cost of a sleeve pipe tieback project.
Description
Technical field
The present invention relates to a kind ofly in oil well cementation process, employed sleeve pipe tieback device when inserting the tieback sealing by tubing string tieback bottom, top tail pipe belongs to the oil exploration equipment technical field.
Background technology
In high-leveled and difficult well tieback well cementation process, need top tubing string tieback be pegged graft and form sealing and fixing in the tail pipe of bottom.Yet in actual engineering, the size between top tubing string and the bottom tail pipe often might not be mated for a certain reason, and generally speaking, the top tubing string does not influence technology again in order to practice thrift cost, the general less 139.7mm that is generally of size.The size of bottom tail pipe can also can be 139.7mm for 177.8mm, and the hanger that still hangs tail pipe guarantees for technology, can only use 177.8mm's.So just need to adopt special sealing tieback assembly that top tubing string and bottom tail pipe are realized the sealing tieback.
Fig. 2 is the structural representation of existing sleeve pipe tieback device.As shown in the figure, the tail pipe side is made up of with middle hanger two tieback tubes up and down existing sleeve pipe tieback device in the bottom, and the tubing string lower end is provided with float collar, sleeve pipe and sealing plug on top.This top tubing string passes said last time of extend neck and hanger, forms sealing by sealing plug and extend neck next time.But, as previously mentioned since between top tubing string and the bottom tail pipe size do not match, so the size of sealing plug is less, and this outside dimension of extend neck is bigger next time.Want to make the two to be sealed and matched, just must the general next time the wall thickness of extend neck do thickly, can increase cost like this, fully do not use extend neck last time, further increased cost again.In addition, after tieback well cementation process finished, described last time, extend neck just no longer had actual use, because the material of tieback tube own involves great expense the waste that an idle like this tieback tube also causes equipment to use.In addition, owing in the well cementation process, need pour into cement to the down-hole, and priming charge mud can remain between float collar and the sleeve pipe in a large number, to the follow-up work influence of making troubles.Moreover, existing sleeve pipe tieback device not only can cause a large amount of equipment, waste of material to cause that cost increases, and in the implementation process of tieback well cementation also more complicated itself, workload is big, and there are a lot of uncertain factors in the technological requirement height.
In view of existing problems in the above existing sleeve pipe tieback device, this patent has designed a kind of sleeve pipe tieback device of brand new,, technology simple tieback well cementation work with low cost to realize.
Summary of the invention
Main purpose of the present invention is to solve the problem that exists in the prior art, and a kind of sleeve pipe tieback device of brand new is provided,, technology simple tieback well cementation work with low cost to realize.
The objective of the invention is to be achieved through following technical proposals:
Sleeve pipe tieback device is characterized in that: comprising: tieback tube, changeover plug, centralizer, tieback sealing plug, tieback extension and guide shoe;
Said tieback tube is arranged on the upper end of bottom tail pipe;
Said changeover plug is a middle blind plug with two box list pin threads; The top connection side of this changeover plug is provided with a box in order to be connected with the top tubing string; The lower contact internal diameter of this changeover plug is a box, in order to be connected with said tieback extension; The lower contact external diameter of this changeover plug is a pin thread, in order to be connected with said tieback sealing plug; The said caliber size that connects the caliber size of extension less than the tieback sealing plug;
Described centralizer is an annulus; This centralizer is set on this tieback extension; Be sheathed between tieback extension and the tieback sealing plug through this centralizer, with the fixing relative position between tieback extension and the tieback sealing plug;
The internal diameter of the external diameter of said tieback sealing plug and said tieback tube is complementary, in the tieback tube of pegging graft;
Said guide shoe is arranged on the lower end of tieback extension; One end of this guide shoe is provided with spiral shell and buckles in order to be connected with the tieback extension; The other end of guide shoe is a tip.
Also be provided with a protruding spacing ring on the said changeover plug between the lower contact; The external diameter of this convexity spacing ring is greater than the caliber of said tieback sealing plug, so that this changeover plug can fasten in the upside of tieback sealing plug.
The caliber of the internal radius of said centralizer and said tieback extension is complementary; Be provided with at least three protrusions in the outside of this annulus and support, in order to support said tieback sealing plug.
The caliber of the internal radius of said centralizer and said tieback extension is complementary; The annulus external diameter of said centralizer and the caliber of said tieback sealing plug are complementary.
On the tube wall of the tip side of said guide shoe, also be provided with a guide ramp.
On said tieback sealing plug, also be provided with protruding snap ring; The external diameter of this convexity snap ring is greater than the caliber of said tieback tube, so that this tieback sealing plug can fasten in the upside of tieback tube.
Between the tube wall of said tieback tube and tieback sealing plug, also be provided with one deck sealed rubber ring at least; Sealing glue ring is attached between tieback tube, the tieback sealing plug tube wall.
The invention has the beneficial effects as follows: this sleeve pipe tieback device makes the bigger tieback tube of caliber size small upper tubing string and caliber size be connected mutually through the structure design of changeover plug, and then is connected with the formation of bottom tail pipe.And,, thereby guarantee tieback sealing plug and extension position relative fixed and placed in the middle through sheathed centralizer between tieback extension and tieback sealing plug.In the sleeve pipe tieback device that this patent designed, only need use a tieback tube to get final product, and this tieback tube does not need will thicken tube wall because cooperating the size of top tubing string.Simultaneously, such structure design can not cause the problem of residual cement yet.Therefore, this sleeve pipe tieback device can reduce the realization cost of its engineering greatly.
Description of drawings
Fig. 1 is the sleeve pipe tieback device structural representation;
Fig. 2 is the structural representation of existing sleeve pipe tieback device;
Fig. 3 is the changeover plug structure chart;
Fig. 4 is centralizer structure figure;
Fig. 5 is the guide shoe structure chart.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
Fig. 1 is the sleeve pipe tieback device structural representation that this patent designed.As shown in the figure, this sleeve pipe tieback device comprises: tieback tube 1, changeover plug 2, centralizer 3, tieback sealing plug 6, tieback extension 4 and guide shoe 5.
Said tieback tube 1 is arranged on the upper end of bottom tail pipe.The caliber size of this tieback tube 1 matches with the large-size of bottom tail pipe.
Fig. 3 is the structure chart of changeover plug.As shown in the figure, said changeover plug 2 is a middle blind plug with two box list pin threads.Top connection 21 sides of this changeover plug 2 are provided with a box in order to be connected with the top tubing string.The caliber size of this top connection 21 matches with the reduced size of top tubing string.Lower contact 22 internal diameters of this changeover plug 2 are a box, in order to be connected with said tieback extension 4.Lower contact 22 external diameters of this changeover plug 2 are a pin thread, in order to be connected with said tieback sealing plug 6.The said caliber size that connects the caliber size of extension 4 less than tieback sealing plug 6.
Fig. 4 is the structure chart of centralizer.As shown in the figure, described centralizer 3 is an annulus.The caliber of the internal diameter of this annulus and said tieback extension 4 is complementary.This centralizer 3 is set on this tieback extension 4.Be provided with at least three protrusions in the outside of this annulus and support, in order to support said tieback sealing plug 6.Be sheathed between tieback extension 4 and the tieback sealing plug 6 through this centralizer 3, make position relative fixed between tieback extension 4 and the tieback sealing plug 6.
The internal diameter of the external diameter of said tieback sealing plug 6 and said tieback tube 1 is complementary, and in the tieback tube 1 of pegging graft, makes the top tubing string form with the bottom tail pipe and is connected.
Said guide shoe 5 is arranged on the lower end of tieback extension 4.As shown in Figure 5, an end of this guide shoe 5 is provided with spiral shell and buckles in order to be connected with tieback extension 4.The other end of guide shoe 5 is a tip.Through the structure of this guide shoe 5, so that the probeing into downwards of tieback extension 4.
Structure by above-mentioned sleeve pipe tieback device can be found out; The sleeve pipe tieback device that this patent designed is through the structure design of changeover plug 2; Make the bigger tieback tube of caliber size small upper tubing string and caliber size be connected mutually, and then be connected with the formation of bottom tail pipe.And,, thereby guarantee the fixed-site between top tubing string and the bottom tail pipe through sheathed centralizer 3 between tieback extension 4 and tieback sealing plug 6.In the sleeve pipe tieback device that this patent designed; Only need use a tieback tube to get final product; And, make this tieback tube not need and to thicken tube wall because cooperating the size of top tubing string because the tubing string side is provided with the tieback sealing plug that directly is complementary with the tieback bobbin on top.Simultaneously, such structure design can not cause the problem of residual cement yet.Therefore, this sleeve pipe tieback device can reduce the realization cost of its engineering greatly.
Should be pointed out that centralizer 3 wherein mainly is to play the fixedly effect of relative position between the tieback extension 4 and tieback sealing plug 6 through an annular rigid support.This patent just from the angle design of saving material, being convenient to construct structure shown in Figure 4.But this centralizer 3 can also directly not be provided with the annulus realization that outside protrusion supports by one.The caliber of the internal diameter of this annulus and said tieback extension 4 is complementary.The caliber of the external diameter of this annulus and said tieback sealing plug 6 is complementary.Such centralizer structure can also be realized above-mentioned purpose of design.
In addition, fix, be convenient to aboveground personnel operation in order to make in the above-mentioned sleeve pipe tieback device relative position between each parts.As shown in Figure 3, also be provided with a protruding spacing ring 23 on the said changeover plug 2 between the lower contact.The external diameter of this convexity spacing ring 23 is greater than the caliber of tieback sealing plug 6, so that this changeover plug 2 can fasten in the upside of tieback sealing plug 6.
Play spacing fastening the effect except on changeover plug 2, being provided with protruding spacing ring 23.This patent can also design corresponding position limiting structure on said guide shoe 5.As shown in Figure 5, on the tube wall of the tip side of said guide shoe 5, also be provided with a guide ramp 51.Can make this guide shoe 5 be limited in the lower end associated components through this guide ramp 51.
Also have, as shown in Figure 1, the sleeve pipe tieback device that this patent designed also can be provided with protruding snap ring 61 by tieback sealing plug 6.The external diameter of this convexity snap ring 61 is greater than the caliber of tieback tube 1, so that this tieback sealing plug 6 can fasten in the upside of tieback tube 1.
Have again, in order further to increase the sealing between tieback tube 1 and the tieback sealing plug 6.As shown in Figure 1, between the tube wall of tieback tube 1 and tieback sealing plug 6, also be provided with one deck sealed rubber ring 7 at least.Sealing glue ring 7 is attached between tieback tube 1, tieback sealing plug 6 tube walls, the effect that play sealing, intercepts.
In sum, the sleeve pipe tieback device that this patent designed mainly is through the structure design of said changeover plug 2 with centralizer 3, makes this sleeve pipe tieback device realize single tieback tube tieback, thereby greatly reduces the realization cost of sleeve pipe tieback engineering.Those skilled in the art's any not creative transformation of doing on the basis of said structure design all should be regarded as within protection scope of the present invention.
Claims (7)
1. sleeve pipe tieback device is characterized in that: comprising: tieback tube, changeover plug, centralizer, tieback sealing plug, tieback extension and guide shoe;
Said tieback tube is arranged on the upper end of bottom tail pipe;
Said changeover plug is a middle blind plug with two box list pin threads; The top connection side of this changeover plug is provided with a box in order to be connected with the top tubing string; The lower contact internal diameter of this changeover plug is a box, in order to be connected with said tieback extension; The lower contact external diameter of this changeover plug is a pin thread, in order to be connected with said tieback sealing plug; The caliber size of said tieback extension is less than the caliber size of tieback sealing plug;
Described centralizer is an annulus; This centralizer is set on this tieback extension; Be sheathed between tieback extension and the tieback sealing plug through this centralizer, with the fixing relative position between tieback extension and the tieback sealing plug;
The internal diameter of the external diameter of said tieback sealing plug and said tieback tube is complementary, in the tieback tube of pegging graft;
Said guide shoe is arranged on the lower end of tieback extension; One end of this guide shoe is provided with spiral shell and buckles in order to be connected with the tieback extension; The other end of guide shoe is a tip.
2. sleeve pipe tieback device as claimed in claim 1 is characterized in that: also be provided with a protruding spacing ring on the said changeover plug between the lower contact; The external diameter of this convexity spacing ring is greater than the caliber of said tieback sealing plug, so that this changeover plug can fasten in the upside of tieback sealing plug.
3. sleeve pipe tieback device as claimed in claim 1 is characterized in that: the caliber of the internal radius of said centralizer and said tieback extension is complementary; Be provided with at least three protrusions in the outside of this annulus and support, in order to support said tieback sealing plug.
4. sleeve pipe tieback device as claimed in claim 1 is characterized in that: the caliber of the internal radius of said centralizer and said tieback extension is complementary; The annulus external diameter of said centralizer and the caliber of said tieback sealing plug are complementary.
5. sleeve pipe tieback device as claimed in claim 1 is characterized in that: on the tube wall of the tip side of said guide shoe, also be provided with a guide ramp.
6. sleeve pipe tieback device as claimed in claim 1 is characterized in that: on said tieback sealing plug, also be provided with protruding snap ring; The external diameter of this convexity snap ring is greater than the caliber of said tieback tube, so that this tieback sealing plug can fasten in the upside of tieback tube.
7. sleeve pipe tieback device as claimed in claim 1 is characterized in that: between the tube wall of said tieback tube and tieback sealing plug, also be provided with one deck sealed rubber ring at least; Sealing glue ring is attached between tieback tube, the tieback sealing plug tube wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100939146A CN101666215B (en) | 2009-09-30 | 2009-09-30 | Sleeve pipe tieback device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100939146A CN101666215B (en) | 2009-09-30 | 2009-09-30 | Sleeve pipe tieback device |
Publications (2)
| Publication Number | Publication Date |
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| CN101666215A CN101666215A (en) | 2010-03-10 |
| CN101666215B true CN101666215B (en) | 2012-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100939146A Active CN101666215B (en) | 2009-09-30 | 2009-09-30 | Sleeve pipe tieback device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392615A (en) * | 2011-11-29 | 2012-03-28 | 中国石油集团长城钻探工程有限公司 | Oil pipe tie-back insertion sealing device |
| CN103015911A (en) * | 2012-11-29 | 2013-04-03 | 中国石油集团长城钻探工程有限公司 | Articulated oil tube tie-back sealing device |
| CN111829481B (en) * | 2020-06-19 | 2021-11-30 | 北京源清慧虹信息科技有限公司 | Array inclinometer and torsion angle correction method |
| CN114718501B (en) * | 2022-03-31 | 2023-07-28 | 中海油能源发展股份有限公司 | Quick tieback sealing device for sleeve and operation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4083405A (en) * | 1976-05-06 | 1978-04-11 | A-Z International Tool Company | Well drilling method and apparatus therefor |
| US4595058A (en) * | 1984-08-28 | 1986-06-17 | Shell Oil Company | Turbulence cementing sub |
| CN2154904Y (en) * | 1993-04-24 | 1994-02-02 | 新疆石油管理局钻井工艺研究所 | Sleeve connector |
| CN2675843Y (en) * | 2003-10-24 | 2005-02-02 | 四川石油管理局川东钻探公司 | Centralizing type adjustable tie-back sleeve |
| CN201502337U (en) * | 2009-09-30 | 2010-06-09 | 安东石油技术（集团）有限公司 | Casing tie-back tool |
-
2009
- 2009-09-30 CN CN2009100939146A patent/CN101666215B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4083405A (en) * | 1976-05-06 | 1978-04-11 | A-Z International Tool Company | Well drilling method and apparatus therefor |
| US4595058A (en) * | 1984-08-28 | 1986-06-17 | Shell Oil Company | Turbulence cementing sub |
| CN2154904Y (en) * | 1993-04-24 | 1994-02-02 | 新疆石油管理局钻井工艺研究所 | Sleeve connector |
| CN2675843Y (en) * | 2003-10-24 | 2005-02-02 | 四川石油管理局川东钻探公司 | Centralizing type adjustable tie-back sleeve |
| CN201502337U (en) * | 2009-09-30 | 2010-06-09 | 安东石油技术（集团）有限公司 | Casing tie-back tool |
Non-Patent Citations (2)
| Title |
|---|
| 宋永军等.套管回接工艺技术.《石油钻采工艺》.1993,第15卷(第4期),54-56. * |
| 王东.塔深1井固井技术.《石油钻采工艺》.2007,第29卷(第4期),23-29. * |
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| CN101666215A (en) | 2010-03-10 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20100310 Assignee: TIANJIN ANTON PETROLEUM MACHINERY MANUFACTURING CO.,LTD. Assignor: Anton Oilfield Services (Group) Ltd. Contract record no.: 2014990000952 Denomination of invention: Sleeve pipe tieback device Granted publication date: 20120111 License type: Exclusive License Record date: 20141224 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
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Effective date of registration: 20221109 Address after: 100102 No.8, pingcui West Road, Chaoyang District, Beijing Patentee after: ANTON OILFIELD SERVICES (GROUP) Ltd. Patentee after: XINJIANG ANTON OIL TECHNOLOGY SERVICES Co.,Ltd. Address before: 100102, No. 8 Tsui Xi Road, East Lake, Beijing, Chaoyang District Patentee before: ANTON OILFIELD SERVICES (GROUP) Ltd. |
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| TR01 | Transfer of patent right |