CN101906946B - Hydraulic expansion-type rotary liner hanger - Google Patents
Hydraulic expansion-type rotary liner hanger Download PDFInfo
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- CN101906946B CN101906946B CN 200910143573 CN200910143573A CN101906946B CN 101906946 B CN101906946 B CN 101906946B CN 200910143573 CN200910143573 CN 200910143573 CN 200910143573 A CN200910143573 A CN 200910143573A CN 101906946 B CN101906946 B CN 101906946B
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Abstract
The invention relates to a hydraulic expansion-type rotary liner hanger which mainly comprises a central pipe, a rubber ring, an expansion cone, a hanger body, a spline shaft, a dual-male connector, a hollow rubber plug, a cementing rubber plug, a rubber plug shearing seat and a rubber plug conduit. The hanger body is a variable-diameter expansion pipe, the rubber ring is added at the upper end of the expansion pipe, the lower end of the expansion pipe is connected with the dual-male connector, a spline groove in the dual-male connector is coupled with a spline on the spline shaft, the upper end of which is connected with the central pipe, a burst disc is mounted on the spline shaft, the expansion cone is sleeved on the spline shaft, the rubber plug conduit is connected with the lower end of the dual-male connector, the lower end of the rubber plug conduit is connected with a liner, the hollow rubber plug and the shearing seat are arranged in the rubber plug conduit, the shearing seat is mounted on a shoulder in the rubber plug conduit, and the hollow rubber plug is connected with the rubber plug shearing seat through pins and threads. The invention has the advantages that the well-cementing quality and the well-cementing success rate of the liner are improved by rotating a whole tubular column in cementing a well, the problems of annulus sealing in the stacking section of the liner is solved, reverse snapping is avoided after hanging, and the internal through diameter is greater.
Description
Technical field
The present invention is the rotatable extension hanger of a kind of hydraulic buckling type, hangs tail pipe when being used for liner completion, relates to Cementing completion technique field.
Background technology
The liner completion technology refers to adopt extension hanger in the technique of upper strata sleeve pipe suspension liner-type well completion, and extension hanger is the essential tool of liner completion.Development along with drilling technology, the continuous rise of the drilling technologies such as deep-well, ultradeep well, high angle hole, horizontal well, Multilateral Wells, the little gap of slim-hole well, and the high speed development of old well SIDETRACKING TECHNOLOGY, the application of liner completion technology is more and more extensive, these are treated that different well carries out the liner completion operation and uses existing conventional hanger to be difficult to satisfy need of production, sometimes even cause great down-hole accident.
At present, extension hanger sets mode by it can be divided into slip-type and buckling type tail pipe hanger, and the rear sealing performance of slip-type hanger suspension is unreliable, seat is hung rear latus rectum and diminished the danger that has seal leakage and do not open button; And the well cementation of expansion type hanger the time can not be rotated, and exists to replace the dead band, and cementing quality can not be guaranteed.
Patent publication No. CN200946473Y provides a kind of buckling type tail pipe hanger, adopts hydraulic pressure expansion fashion from top to down to expand, complex structure and can not rotary tail; Patent publication No. CN101173601A and CN101187300A are disclosed to be the expansion rotation hanger of hydraulic pressure and two kinds of expansion fashions of mechanical and hydraulic double-acting, the joint of sending into that connects expansion hanger assembles inconvenient, and be processed with spline on the hanger body, affect for the later stage operation; The block ring that is used for simultaneously the secondary bruising is positioned at lower tube connector and the cement paste of the following tail pipe of lower tube connector can't be replaced, and also need creep into down row and bore plug.
Deficiency for new packer liner-hanger hanger and expandable liner hanger, develop the disclosed inflatable rotary liner hanger of a kind of CN101173601A of being different from and CN101187300A system, this system has the function of effective suspension, sealing and rotation well cementation.
Summary of the invention
The object of the invention is to provide to the scene a kind of inflatable rotary liner hanger, be taken to down and on expansion fashion, sealing and rotation are hung in realization to tail pipe, the deficiency that waterpower leakage, back-off difficulty and the latus rectum of having avoided slip-type hanger to occur diminishes.
The present invention realizes like this.Hydraulic expansion-type rotary liner hanger mainly is made of central tube, rubber ring, expansion cone, hanger body, splined shaft, two male joint, hollow rubber plug, cementing plug, plug Cut Block and rubber plug pipe.The hanger body links to each other with two male joints, two male joints lower end connects rubber plug pipe, the hanger body is the expansion tube of one section reducing, has one section with the changeover portion of the conical surface, the body bigger diameter end does not expand, and external diameter was identical with bigger diameter end after miner diameter end expanded, and miner diameter end is processed with the multistage rubber ring on the body, rubber ring is close between upper strata sleeve pipe and the hanger body after expanding, and forms effectively sealing.Central tube links to each other with splined shaft, and expansion cone is installed on the splined shaft, and expansion cone is up-narrow and down-wide cone through-hole structure, be positioned at body and splined shaft annular space, its conical surface contacts with the conical surface transition section of body, and splined shaft circumferentially has a pair of through hole, and rupture disk is housed in the through hole.The lower end of splined shaft is processed with spline, is of coupled connections with spline in two male joints.Rubber plug pipe is connected to two male joint lower ends, its lower end is processed with screw thread, be used for connecting the tail pipe of needs rotation, hollow rubber plug and plug Cut Block all are positioned at rubber plug pipe, the plug Cut Block is placed on the shoulder of rubber plug pipe inside, and hollow rubber plug links to each other with the plug Cut Block by pin and helicitic texture.Cementing plug lower end plug head external diameter is less than plug Cut Block center-hole diameter, and greater than the diameter of hollow rubber plug centre bore, hollow rubber plug when well cementation can with cementing plug mix proportion Compounded rubber plug.
The invention has the advantages that:
(1) spline joint by two male joints, interior tubing string and hanger and tail pipe are fixed, tubing string be lowered to Process of Cementing in can be up and down and the whole tubing string of rotation, guarantee that tubing string is lowered to safely, and effectively avoid the mud dead band, improve displacement efficiency, significantly improve the drilling liner cementing quality; Secondly it is little effectively to solve annular clearance, and tail pipe is difficult to a difficult problem placed in the middle, improves cementing quality and well cementation success rate.
(2) adopt the hydraulic buckling mode to expand, integrate and hang sealing function, can prevent that conventional hanger from sitting the waterpower of putting rear appearance and leaking, to greatest extent saving and squeeze method, expense that the extension hanger packer is relevant, make annular space have necessary waterpower integrality, be conducive to bore well deeplyer.
(3) after hanger sit to be hung, do not need back-off, directly give up, look for the point of neutralization inaccurate and the serious accident of button occurs not open when avoiding conventional hanger back-off.
(4) eliminated conventional slips and hung the damage that the upper strata sleeve pipe is caused, and larger suspension force can be provided and have higher reliability.
(5) adopt integral structure, seat does not have the mechanisms such as central tube, slips after hanging, and latus rectum is large in the tubing string, increases inner effective flow area, guarantees the smooth and easy of other intraductal operation.
Description of drawings
Accompanying drawing 1 inflatable rotary liner hanger structural representation
Structural representation after accompanying drawing 2 inflatable rotary liner hangers expand
1 central tube, 2 rubber rings, 3 expansion cone, 4 hanger bodies, 5 rupture disks, 6 splined shafts, 7 splines, 8 crossover subs, 9 plug Cut Blocks, 10 hollow rubber plugs, 11 rubber plug pipe, 12 cementing plugs, 13 upper strata sleeve pipes, 14 tail pipes
The specific embodiment
Now the invention will be further described in conjunction with Figure of description.
Shown in accompanying drawing 1, accompanying drawing 2, hydraulic expansion-type rotary liner hanger mainly is made of central tube 1, rubber ring 2, expansion cone 3, hanger body 4, splined shaft 6, two male joint 8, plug Cut Block 9, hollow rubber plug 10, cementing plug 12 and rubber plug pipe 11.Hanger body 4 is the expansion tube of one section reducing, and its miner diameter end adds has rubber ring 2, and the body lower end links to each other with two male joints 8, and two male joints [8] inside is processed with spline, and the spline 7 on spline and the splined shaft 6 is coupled and fixes.Splined shaft 6 upper ends link to each other with central tube 1, in the circumferential a pair of through hole of splined shaft 6 rupture disk 5 is installed respectively, expansion cone 3 is enclosed within splined shaft 6 upper ends, in the annular space between hanger body 4 and splined shaft 6, also can adopting fixedly between expansion cone 3 and the central tube 1, pipe nipple is fixed expansion cone 3, rubber plug pipe 11 is connected to two male joint 8 lower ends, its lower end is processed with screw thread, be used for connecting the tail pipe 14 of needs rotation, hollow rubber plug 10 and plug Cut Block 9 all are positioned at rubber plug pipe 11, plug Cut Block 9 is placed on the shoulder of rubber plug pipe 11 inside, and hollow rubber plug 10 links to each other with plug Cut Block 9 by pin and helicitic texture.Cementing plug 12 lower end external diameters are less than plug Cut Block 9 center-hole diameters, and greater than the diameter of hollow rubber plug 10 centre bores, cementing plug 12 and hollow rubber plug 10 mix proportion Compounded rubber plugs during well cementation.In splined shaft 6 and the two male joint 8 sealing ring is housed all, effective sealing when guaranteeing the hanger expansion.
As shown in Figure 1 and Figure 2, during implementation of the present invention, adopt central tube 1 to accompany, the conical surface by expansion cone 3 cooperates suspension hanger and tail pipe 14 with the reducing conical surface seal of hanger body 4, make its G.I.H to the precalculated position.After pumping into the cement slurry volume of design in the tubing string during well cementation, drop into cementing plug 12, then pump into completion fluid, it is descending to replace cementing plug 12, safety splined shaft 6, arrive rubber plug pipe 11 inherent hollow rubber plug 10 places bruisings, shear plug Cut Block 9, cementing plug 12 cooperates the formation Compounded rubber plug with hollow rubber plug 10.Under the replacement effect of completion fluid, continue descendingly, scrape off the cement paste of tail pipe 14 inwall remnants, in the float shoe of tail pipe 14 bottoms, be built-in with the plug seat that cooperates with Compounded rubber plug, when Compounded rubber plug is replaced to plug seat place, form the secondary bruising, finish the well cementation operation.Being lowered in the process of tubing string, can be by center of rotation pipe 1, the whole tubing string rotation of spline 7 drives by splined shaft 6 and two male joints 8 guarantees that the tail pipe tubing string is lowered to safely.Simultaneously when cementing operation, also can be up and down and overall process rotate whole tubing string, solve effectively that annular clearance is little, tail pipe is difficult to a difficult problem placed in the middle, and effectively avoid the mud dead band, improve displacement efficiency, significantly improve tail pipe 14 cementing qualities and well cementation success rate.After the secondary bruising, continue to build the pressure to design pressure, the rupture disk 5 on the splined shaft 6 is opened, and pressure is passed to the hydraulic cavities between inner tube and hanger body [4].Expansion cone 3 is under the effect of hydraulic pressure, driving splined shaft 6 and central tube 1 moves upward together, hanger body 4 is expanded, rubber ring 2 on the body 4 is close between upper strata sleeve pipe 13 and the hanger body 4, rubber ring [2] can provide reliable sealing and suspension force, form effectively sealing, realize that the seat of tail pipe 14 strings is hung.After 4 expansions of hanger body were complete, expansion cone 3, splined shaft 6 and central tube 1 were released hanger body 4 by hydraulic pressure, enter in the upper strata sleeve pipe 13, realized not needing back-off directly to give up the danger of having avoided slip-type hanger not open button.After giving up, recycle unnecessary cement paste, trip out expansion cone 3, splined shaft 6 and central tube 1, do not bore plug and do not need to creep into down again row.After hanger is sat and hung, have larger and smooth unified internal diameter, guarantee the smooth and easy of other intraductal operation.
Claims (5)
1. hydraulic expansion-type rotary liner hanger, mainly consisted of by central tube [1], rubber ring [2], expansion cone [3], hanger body [4], splined shaft [6], two male joint [8], plug Cut Block [9], hollow rubber plug [10], cementing plug [12] and rubber plug pipe [11], it is characterized in that: hanger body [4] is the expansion tube of one section reducing, the upper end is processed with rubber ring [2], the lower end links to each other with two male joints [8], and the spline that two male joints [8] are inner and the spline [7] on the splined shaft [6] are coupled; Splined shaft [6] upper end links to each other with central tube [1], rupture disk [5] is installed on the splined shaft [6], expansion cone [3] is enclosed within on the splined shaft [6], expansion cone [3] is up-narrow and down-wide cone through-hole structure, its conical surface and hanger body [4] form and are sealed and matched, rubber plug pipe [11] is connected to two male joint [8] lower ends, and its lower end is processed with screw thread, connects the tail pipe [14] that needs rotation; Hollow rubber plug [10] and plug Cut Block [9] all are positioned at rubber plug pipe [11], and plug Cut Block [9] is placed on the inner shoulder of rubber plug pipe [11], and hollow rubber plug [10] links to each other with plug Cut Block [9] by pin and screw thread.
2. hydraulic expansion-type rotary liner hanger as claimed in claim 1, it is characterized in that: hanger body [4] is the expansion tube of one section reducing, is processed with one section with the changeover portion of the conical surface, is the bell mouth shape structure.
3. hydraulic expansion-type rotary liner hanger as claimed in claim 1, it is characterized in that: cementing plug [12] lower end plug head external diameter is less than plug Cut Block [9] center-hole diameter, and greater than the diameter of hollow rubber plug [10] centre bore, cementing plug [12] and hollow rubber plug [10] mix proportion Compounded rubber plug when well cementation.
4. hydraulic expansion-type rotary liner hanger as claimed in claim 1, it is characterized in that: hanger body [4] upper end face is processed with multistage rubber ring [2].
5. hydraulic expansion-type rotary liner hanger as claimed in claim 1 is characterized in that: on splined shaft [6] two ends and the two male joints [8] sealing ring is housed all.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910143573 CN101906946B (en) | 2009-06-04 | 2009-06-04 | Hydraulic expansion-type rotary liner hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910143573 CN101906946B (en) | 2009-06-04 | 2009-06-04 | Hydraulic expansion-type rotary liner hanger |
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| Publication Number | Publication Date |
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| CN101906946A CN101906946A (en) | 2010-12-08 |
| CN101906946B true CN101906946B (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910143573 Active CN101906946B (en) | 2009-06-04 | 2009-06-04 | Hydraulic expansion-type rotary liner hanger |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291238B (en) * | 2013-06-08 | 2015-11-18 | 华鼎鸿基石油工程技术(北京)有限公司 | A kind of reexpansion patch device crossing patching tube |
| CN104747110A (en) * | 2013-12-31 | 2015-07-01 | 中国石油化工集团公司 | Expansion casing positioning device |
| CN103742092A (en) * | 2013-12-31 | 2014-04-23 | 中国石油天然气股份有限公司 | Expansion pipe completion tool |
| CN103790533B (en) * | 2014-01-03 | 2016-08-17 | 中国石油天然气股份有限公司 | Expansion type liner hanger capable of cementing well |
| CN106567687A (en) * | 2015-10-12 | 2017-04-19 | 中石化石油工程技术服务有限公司 | Top-down expandable casing expansion method for deep well |
| CN107313736B (en) * | 2017-06-14 | 2023-06-27 | 威飞海洋装备制造有限公司 | Novel casing head body bottom connecting device |
| CN112227992B (en) * | 2019-07-15 | 2024-07-26 | 中国石油化工股份有限公司 | Double-hanging double-sealing high-temperature-resistant expansion hanger |
| CN114059947B (en) * | 2020-08-03 | 2023-06-30 | 中国石油天然气股份有限公司 | Fixed-point back-off device for sleeve |
| CN114517658A (en) * | 2020-11-20 | 2022-05-20 | 中国石油天然气集团有限公司 | Well cementation and leakage stoppage method |
| CN113431519B (en) * | 2021-06-30 | 2022-12-09 | 湖北鄂西新能源有限公司 | Small borehole grouting well cementation method and device |
| CN114991692B (en) * | 2022-06-01 | 2024-01-16 | 淮安市井神钻采机具有限公司 | Composite super-expansion well cementation liner hanger |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2698958Y (en) * | 2004-05-10 | 2005-05-11 | 大庆油田有限责任公司 | Hydraulic expansion reinforcing device for down-hole casing patch |
| CN101187300A (en) * | 2007-11-29 | 2008-05-28 | 中国石油天然气集团公司 | Rotary hydraulic machinery double function expansion type tail pipe hanger |
| CN201705252U (en) * | 2009-06-05 | 2011-01-12 | 中国石化集团胜利石油管理局钻井工艺研究院 | Hydraulic expansion type rotating liner hanger |
-
2009
- 2009-06-04 CN CN 200910143573 patent/CN101906946B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2698958Y (en) * | 2004-05-10 | 2005-05-11 | 大庆油田有限责任公司 | Hydraulic expansion reinforcing device for down-hole casing patch |
| CN101187300A (en) * | 2007-11-29 | 2008-05-28 | 中国石油天然气集团公司 | Rotary hydraulic machinery double function expansion type tail pipe hanger |
| CN201705252U (en) * | 2009-06-05 | 2011-01-12 | 中国石化集团胜利石油管理局钻井工艺研究院 | Hydraulic expansion type rotating liner hanger |
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| CN101906946A (en) | 2010-12-08 |
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| CB03 | Change of inventor or designer information |
Inventor after: Zhang Yu Inventor after: Tang Chenglei Inventor after: Zhu Haibo Inventor after: Teng Zhaozheng Inventor after: Shen Xuexiang Inventor after: Cai Peng Inventor after: Tang Ming Inventor after: Han Laiju Inventor after: Li Zuohui Inventor after: Ning Xuetao Inventor after: Wang Shaoxian Inventor after: Wu Liugen Inventor after: Peng Zhigang Inventor after: Ma Jianzhong Inventor before: Tang Ming Inventor before: Teng Zhaozheng Inventor before: Shen Xuexiang Inventor before: Cai Peng Inventor before: Ning Xuetao Inventor before: Wang Shaoxian Inventor before: Xie Fengmeng Inventor before: Wu Liugen Inventor before: Peng Zhigang Inventor before: Ma Jianzhong Inventor before: Tang Chenglei Inventor before: Zhu Haibo |
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Free format text: CORRECT: INVENTOR; FROM: TANG MING NING XUETAO WANG SHAOXIAN XIE FENGMENG WU LIUGEN PENG ZHIGANG MAJIANZHONG TANG CHENGLEI ZHU HAIBO TENG ZHAOZHENG SHEN XUEXIANG CAI PENG TO: ZHANG YU TANG MING HAN LAIJU LI ZUOHUI NING XUETAO WANG SHAOXIAN WU LIUGEN PENG ZHIGANG MA JIANZHONG TANG CHENGLEI ZHU HAIBO TENG ZHAOZHENG SHEN XUEXIANG CAI PENG |
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Owner name: SINOPEC OILFIELD SERVICE CORPORATION Free format text: FORMER OWNER: WELL-DRILLING TECHNOLOGY INST., SHENGLI PETROLEUM ADMINISTRATION, SINOPEC Effective date: 20150325 Owner name: CHINA PETROLEUM + CHEMICAL VICTORY OIL ENGINEERING Effective date: 20150325 |
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Free format text: CORRECT: ADDRESS; FROM: 257017 DONGYING, SHANDONG PROVINCE TO: 100029 CHAOYANG, BEIJING |
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Effective date of registration: 20150325 Address after: 100029 Beijing City, Chaoyang District Hui Street No. six twelfth floor Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Patentee after: Drilling Well Technology Institute, Shengli Petroleum Engineering Co., Ltd., SINOPEC Address before: 257017 No. 236, North Road, Dongying District, Shandong, Dongying Patentee before: Well-Drilling Technology Inst., Shengli Petroleum Administration, SINOPEC |