CN202401997U - Expansion pipe suspension type drilling liner hanger - Google Patents
Expansion pipe suspension type drilling liner hanger Download PDFInfo
- Publication number
- CN202401997U CN202401997U CN2012200061410U CN201220006141U CN202401997U CN 202401997 U CN202401997 U CN 202401997U CN 2012200061410 U CN2012200061410 U CN 2012200061410U CN 201220006141 U CN201220006141 U CN 201220006141U CN 202401997 U CN202401997 U CN 202401997U
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- China
- Prior art keywords
- expansion
- conical ring
- running tool
- fluid cylinder
- sliding sleeve
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- Expired - Lifetime
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Abstract
An expansion pipe suspension type drilling liner hanger includes a charging tool, wherein an expansion pipe with an expansion cone hydraulic cylinder is arranged outside the charging tool; an expansion cone hydraulic cylinder dowel is arranged between the charging tool and the expansion pipe; an expansion cone hydraulic cylinder liquid inlet is arranged in a pipe wall of the charging tool; a rubber ring is arranged on an outer wall of the expansion pipe; an expansion cone is arranged in the expansion cone hydraulic cylinder; a conical ring sliding sleeve is arranged below the expansion cone; the conical ring sliding sleeve is fixedly connected with the charging tool through a conical ring sliding sleeve dowel; a tail pipe body is sleeved at the lower part of the charging tool; an embedded conical ring is arranged between the tail pipe body and the charging tool, and a conical ring sliding sleeve sunk hole is arranged in the tail pipe body; the conical ring sliding sleeve is connected with the embedded conical ring; an expansion hydraulic cylinder ball base for placing the expansion hydraulic cylinder ball is arranged inside the charging tool; and the expansion hydraulic cylinder ball seat is connected with the charging tool through an expansion hydraulic cylinder ball seat dowel. The expansion pipe suspension type drilling liner hanger has the characteristics of simple structure and reliable operation.
Description
Technical field
The utility model relates to the oilfield drilling technical field of petroleum industry; Relate in particular to a kind of expansion tube suspension type extension hanger; It is a completion practice downhole tool commonly used in the oilfield drilling process, in oilfield drilling completion process, and the optimization of casing programme; Effective technical means is provided, for the oil gas well rationally, efficient completion provides guarantee.
Background technology
At present, extension hanger technology commonly used mainly is divided into two types.The first kind, awl piece, slip-type extension hanger.Its basic principle is to adopt hydraulic pressure or mechanism mode, promotes in the annular space of slips edge as awl piece and upper strata sleeve pipe tail pipe to be hung in the sleeve pipe of upper strata.Second type, little step.Its basic principle is the expectation hanging position of the sleeve pipe on the upper strata, and a miniature circular step is set in advance, with an annular suspension joint is set on the tail pipe equally, plinth is hung on the miniature circular step then, accomplishes the suspension of tail pipe.In two types of technology, the first kind is used more extensive, and second type of technology is owing to will preset joint in advance in the sleeve pipe of upper strata, and its application is fewer.Awl piece, slip-type extension hanger are hung status requirement than higher for the seat of upper strata sleeve pipe, and when situations such as seat hangs that the position sleeve pipe deforms, wearing and tearing, grade of steel do not match, slips tastes bad as in the sleeve pipe of upper strata, tends to cause seat to report the loss and loses.Simultaneously, because awl piece, slips, fluid cylinder and tieback tube take bigger area at annular space, circulation presses consumption higher, has brought potential adverse effect for operation.
Up-to-date tail tube hanging technology begins to adopt expansion tube to be used as hanging pup joint at present.Be to ensure the safety work of extension hanger, often combine, adopt awl piece, slips to carry out auxiliary block and hang, to guarantee that tail pipe and running tool can be thrown off before cementing with awl piece, slips technology.Behind cemented up, again the expansion suspension arrangement is hung as main suspension means seat, accomplish the tail tube hanging operation.This suspension technology that expansion tube is combined with awl piece, slips causes the structure of whole hanger comparatively complicated.
Summary of the invention
To the problems referred to above, the purpose of the utility model is to provide a kind of simple in structure, the reliable expansion tube suspension type of operation extension hanger.
To achieve these goals, the technical scheme of the utility model is following:
Expansion tube suspension type extension hanger; It is characterized in that, comprise running tool, said running tool is outside equipped with the expansion tube that has the expansion cone fluid cylinder; Be provided with expansion cone fluid cylinder pin between said running tool and the expansion tube; The tube wall of said running tool is provided with expansion cone fluid cylinder inlet opening, and the outer wall of said expansion tube is provided with rubber ring, is provided with expansion cone in the said expansion cone fluid cylinder; The below of said expansion cone is provided with the conical ring sliding sleeve, is connected through conical ring sliding sleeve dowel fixes between said conical ring sliding sleeve and the running tool; The bottom of said running tool also is arranged with the tail pipe body, is provided with embedded conical ring between said tail pipe body and the running tool, and said tail pipe body is provided with the conical ring sliding sleeve and sinks to the hole; Said conical ring sliding sleeve is connected with embedded conical ring; Be provided with the expansion fluid cylinder ball seat that is used to place expansion fluid cylinder ball in the said running tool, be connected through expansion fluid cylinder ball seat pin between said expansion fluid cylinder ball seat and the running tool.
Further, in the utility model, the set inside of said running tool is caught the ball plate.
Further, in the utility model, said tail pipe body is provided with circulation port, and the tail pipe body is provided with circulation port and closes cover, and said running tool is provided with and is used to promote the pressure rings that circulation port is closed cover.
The expansion tube suspension type extension hanger of the utility model, expansion cone adopts the method for operation from top to bottom, and the expansion cone fluid cylinder is located on the running tool, has annular space and takies the less advantage of volume.Expansion tube can be accomplished the dual-use function of tail tube hanging and annular space sealing reliably after expansion.Simultaneously, the expansion arc expansion tube can also be regarded the tieback tube, is used for the operation of sleeve pipe tieback.On custom-designed circulating connection, be designed with circulation port open in usual, to guarantee after expanded tubular section expands suspension, can set up the circulation of normal down-hole, carry out circulating mud and cementing job.Being connected of running tool and tail pipe, adopt embedded conical ring structure, when expansion cone expand into the bottom design attitude with expansion tube, promote the conical ring sliding sleeve, embedded conical ring is sunk in the sliding sleeving hole, free being connected between running tool and tail pipe.Behind cemented up slurry, on submit into instrument, will circulate to overlap with pressure rings presses down, to close circulation port.Adopt expansion tube suspension type extension hanger of the present invention, have simple in structure, the operation reliable characteristics.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is a running tool substructure sketch map;
Fig. 3 is a casing string substructure sketch map.
Wherein: 1, running tool.2, expansion tube.3, expansion cone fluid cylinder centering ring.4, expansion cone fluid cylinder.5, expansion cone fluid cylinder pin.6, expansion cone fluid cylinder inlet opening.7, expansion cone.8, rubber ring.9 rubber rings.10, rubber ring.11, conical ring sliding sleeve.12, conical ring sliding sleeve pin.13, circulation port is closed cover.14, circulating connection.15, circulation port.16, embedded conical ring.17, conical ring support set.18, the conical ring sliding sleeve sinks to the hole.19, tail pipe body.20, pressure rings.21, one-way sealing cover.22, expansion fluid cylinder ball.23, expansion fluid cylinder ball seat.24, expansion fluid cylinder ball seat pin.25, tail pipe box cupling.26, bruising stopping ring.27, catch the ball plate.28, tail pipe body.
The specific embodiment
Expansion tube suspension type extension hanger; Comprise running tool 1; Said running tool 1 is outside equipped with the expansion tube 2 that has expansion cone fluid cylinder 4, is provided with expansion cone fluid cylinder pin 5 between said running tool 1 and the expansion tube 2, and the tube wall of said running tool is provided with expansion cone fluid cylinder inlet opening 6; The outer wall of said expansion tube is provided with rubber ring (8,9,10); Be provided with expansion cone 7 in the said expansion cone fluid cylinder, the below of said expansion cone 7 is provided with conical ring sliding sleeve 11, is fixedly connected through conical ring sliding sleeve pin 12 between said conical ring sliding sleeve 11 and the running tool 1; The bottom of said running tool also is arranged with tail pipe body 19, is provided with embedded conical ring 16 between said tail pipe body 19 and the running tool 1, and said tail pipe body is provided with the conical ring sliding sleeve and sinks to hole 18; Said conical ring sliding sleeve 11 is connected with embedded conical ring 16; Be provided with the expansion fluid cylinder ball seat 23 that is used to place expansion fluid cylinder ball in the said running tool, be connected through expansion fluid cylinder ball seat pin 24 between said expansion fluid cylinder ball seat 23 and the running tool 1.
Further, in the utility model, the set inside of said running tool is caught ball plate 27.
Further, in the utility model, said tail pipe body is provided with circulation port 15, and the tail pipe body is provided with circulation port and closes cover 13, and said running tool is provided with and is used to promote the pressure rings 20 that circulation port is closed cover.
The casing string substructure is inserted during the tail pipe pipe scurries according to designing requirement, descend whole tail pipes that design to scurry.To connect the expansion tail pipe and the running tool of one at well head, with tail pipe scurry be connected after, connect running tool with drilling tool and tail pipe is scurried be lowered into the design well depth.In the well head drilling tool, drop into 22 expansion fluid cylinder balls; Liquid feeding is depressed into and cuts off 5 expansion cone fluid cylinders pin in the drilling tool; Mud gets in the expansion cone fluid cylinder from 6 expansion cone fluid cylinder inlet openings; Promoting to be about under 7 expansion cone 2 expansion tubes expands, and extruding 8,9,10 rubber rings and the high press contacts of upper strata sleeve pipe play suspension tail pipe and the double action that seals annular space.It is descending that expansion cone continues, and cuts off 12 conical ring sliding sleeves pin, promotes 11 conical ring sliding sleeves and come downwards to 16 embedded conical rings and sink to 18 conical ring sliding sleeves and sink in the hole, and disengaging is connected running tool with the tail pipe body.Continue to be forced into and cut off 24 expansion fluid cylinder ball seats pins, 22 expansion fluid cylinder balls, 23 expansion fluid cylinder ball seats are descending to be fallen into 27 and catches the ball plate, sets up circulation, following step cementing job.Behind the cemented up, on submit into instrument to 20 pressure rings and close cover top to 13 circulation ports, press down 13 circulation ports and close cover and close 15 circulation ports, on submit into instrument, after the circulation well cleanup, propose running tool and accomplish the tail pipe operation.
Claims (3)
1. expansion tube suspension type extension hanger; It is characterized in that, comprise running tool (1), said running tool (1) is outside equipped with the expansion tube (2) that has expansion cone fluid cylinder (4); Be provided with expansion cone fluid cylinder pin (5) between said running tool (1) and the expansion tube (2); The tube wall of said running tool is provided with expansion cone fluid cylinder inlet opening (6), and the outer wall of said expansion tube is provided with rubber ring (8,9,10), is provided with expansion cone (7) in the said expansion cone fluid cylinder; The below of said expansion cone (7) is provided with conical ring sliding sleeve (11), is fixedly connected through conical ring sliding sleeve pin (12) between said conical ring sliding sleeve (11) and the running tool (1); The bottom of said running tool also is arranged with tail pipe body (19), is provided with embedded conical ring (16) between said tail pipe body (19) and the running tool (1), and said tail pipe body is provided with the conical ring sliding sleeve and sinks to hole (18); Said conical ring sliding sleeve (11) is connected with embedded conical ring (16); Be provided with the expansion fluid cylinder ball seat (23) that is used to place expansion fluid cylinder ball in the said running tool, be connected through expansion fluid cylinder ball seat pin (24) between said expansion fluid cylinder ball seat (23) and the running tool (1).
2. expansion tube suspension type extension hanger according to claim 1 is characterized in that the set inside of said running tool is caught ball plate (27).
3. expansion tube suspension type extension hanger according to claim 1; It is characterized in that; Said tail pipe body is provided with circulation port (15), and the tail pipe body is provided with circulation port and closes cover (13), and said running tool is provided with and is used to promote circulation port and closes the pressure rings of cover (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200061410U CN202401997U (en) | 2012-01-09 | 2012-01-09 | Expansion pipe suspension type drilling liner hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200061410U CN202401997U (en) | 2012-01-09 | 2012-01-09 | Expansion pipe suspension type drilling liner hanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202401997U true CN202401997U (en) | 2012-08-29 |
Family
ID=46699648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200061410U Expired - Lifetime CN202401997U (en) | 2012-01-09 | 2012-01-09 | Expansion pipe suspension type drilling liner hanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202401997U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485739A (en) * | 2013-09-18 | 2014-01-01 | 新疆贝肯能源工程股份有限公司 | Expansion type thermal production well tail pipe suspension device |
| CN105089533A (en) * | 2014-05-23 | 2015-11-25 | 中国石油化工股份有限公司 | Experimental device used for expanding and suspending tail tube |
-
2012
- 2012-01-09 CN CN2012200061410U patent/CN202401997U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485739A (en) * | 2013-09-18 | 2014-01-01 | 新疆贝肯能源工程股份有限公司 | Expansion type thermal production well tail pipe suspension device |
| CN103485739B (en) * | 2013-09-18 | 2016-09-21 | 新疆贝肯能源工程股份有限公司 | Expansion type thermal production well tail pipe suspension device |
| CN105089533A (en) * | 2014-05-23 | 2015-11-25 | 中国石油化工股份有限公司 | Experimental device used for expanding and suspending tail tube |
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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: 20120829 |