CN201705257U - Expansion pipe running assorted tool for patching of horizontal well casings - Google Patents
Expansion pipe running assorted tool for patching of horizontal well casings Download PDFInfo
- Publication number
- CN201705257U CN201705257U CN2009201579618U CN200920157961U CN201705257U CN 201705257 U CN201705257 U CN 201705257U CN 2009201579618 U CN2009201579618 U CN 2009201579618U CN 200920157961 U CN200920157961 U CN 200920157961U CN 201705257 U CN201705257 U CN 201705257U
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- CN
- China
- Prior art keywords
- expansion
- centralizer
- expansion pipe
- expansion tube
- external diameter
- 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 - Lifetime
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Abstract
The utility model relates to an expansion pipe running assorted tool for patching of horizontal well casings. The expansion pipe running assorted tool comprises a special centralizer for expansion pipes and a rubber layer protective ring, and the centralizer consists of a body, a centralizing portion and a thread portion. The expansion pipe running assorted tool has the advantages that 1, the centralizer can not only centralize an expansion pipe, but can be provided with an oil casing worktable after running of the expansion pipe is completed, and 2, the thread portion of the centralizer is reverse male thread, expansion pipe female thread at the lower end is expanded at first when an expansion cone advances to the male thread portion, so that threaded connection can be separated, and the centralizer is lifted to the ground by aid of the expansion cone. Further, the rubber layer protective ring made of aluminum materials can centralize casings, and a trapezoidal structure of the proactive ring can ensure running smoothness of casings.
Description
Technical field
The utility model is lowered to kit for the horizontal well sheath repairing expansion tube.
Technical background
Expansion tube casing patching technology is meant two ends is had under the expansion sleeve of vulcanized rubber behind the down-hole that adopt expansion cone to make sleeve pipe produce permanent deformation and reach the requirement size, vulcanized rubber and sleeve pipe effectively seal, thus the purpose of realization repair damaged sleeve pipe.
Expansion tube subsidy technology has stronger advantage than the traditional sleeve recovery technique, and in recent years, expansion tube subsidy technology developed rapidly at home, and domestic several big main oilfield such as grand celebration at present, triumph have begun to promote this technology in the well workover field.The vulcanized rubber external diameter outer owing to the used expansion tube of casing patching is very little with quilt subsidy casing inner diameter gap, fashionable rubber layer is easy to be worn even come off under high angle hole section or net horizontal section, cause the construction failure, so up to the present domestic expansion tube subsidy technology only is confined to straight well section or little gradient well section, and major part is short well section.Based on above reason, be to solve the net horizontal section sleeve pipe and repair a difficult problem, be badly in need of the corresponding kit of exploitation and protect the outer rubber layer of expansion tube, make expansion tube be lowered into the high angle hole section safely or net horizontal section carries out casing patching.
Summary of the invention
Repair the difficulty that the net horizontal section sleeve pipe is run at present application expansion tube; be badly in need of the corresponding kit of exploitation and protect the vulcanized rubber of expansion sleeve outer wall; make its position to be subsidized that can be lowered to net horizontal section safely, and the instrument that is lowered to simultaneously can not influence the construction quality of expansion tube subsidy.The purpose of this utility model is the supporting instrument that is lowered to that the horizontal well sheath repairing expansion tube is provided to the scene.
The utility model is to realize like this.The horizontal well sheath repairing expansion tube is lowered to kit, comprises that the special-purpose centralizer of expansion tube and rubber layer protection ring two parts form, centralizer by body part, set upright part and threaded portion three parts are formed.Set upright part and play the effect of setting upright expansion tube string top, make the pipe string placed in the middle.Body part external diameter and expansion sleeve are isometrical, and it is identical with expansion sleeve starter external diameter to set upright the part external diameter.Threaded portion links to each other with the expansion tube upper end, and this screw thread is the left-hand thread short thread, and this screw thread is thrown off when being easy to expand, and utilizes expansion cone to mention ground on the centralizer.The rubber layer protection ring adopts aluminum to make, and profile is a trapezium structure, and external diameter is greater than the external diameter of rubber, fashionable under net horizontal section can be preferentially and the internal surface of sleeve pipe friction, protect rubber.
Advantage of the present utility model is:
1, body part external diameter and expansion sleeve external diameter are isometrical, behind the intact expansion tube oil pipe workbench can be installed down.Set upright part] external diameter and expansion tube starter external diameter be isometrical; can guarantee being lowered to smoothly of centralizer like this; be unlikely to meet card midway; can make the upper expansion casing centralization again; effectively protect the expansion tube rubber layer; leave bigger annular space space between while wiper block and the centralizer body, guarantee that the well-flushing after expansion tube is lowered to is unobstructed.
2, threaded portion is the left-hand thread male thread, and this screw thread design is shorter, and purpose is the expansion tube box thread of preferential expansion lower end when guaranteeing that expansion cone advances to herein, and this connection of thread will be thrown off like this, utilizes expansion cone to mention ground on the centralizer.
3, the rubber layer protection ring not only can play the effect that makes tubing string placed in the middle, and the trapezium structure of protection ring can be guaranteed the unobstructed property that it is lowered in sleeve pipe.When treating that expansion cone expand into the protection ring place, protection ring can be squeezed at expansion tube and quilt and be subsidized in the annular space of sleeve pipe, because it adopts the strong aluminum of plasticity to make, neither can increase the too many bulbs of pressure, can strengthen rubber layer sealed suspension performance again.
Description of drawings
Fig. 1 is lowered to the kit schematic diagram for the horizontal well sheath repairing expansion tube
[1] body part [2] is set upright part [3] threaded portion [4] rubber [5] rubber layer protection ring [6] expansion sleeve [7] expansion tube starter
Fig. 2 is the structural representation of the special-purpose centralizer of expansion tube.
Fig. 3 is the structural representation of rubber layer protection ring.
The specific embodiment
When carrying out the casing patching of net horizontal section, be lowered to the bigger expansion sleeve starter 7 of external diameter earlier, this starter can play the effect that makes expansion tube placed in the middle again.Continue to be lowered to expansion sleeve 6; have the expansion tube lower end of rubber 4 that rubber layer protection ring 5 be installed at all outer walls this moment; because it adopts aluminum to make; and its external diameter and starter external diameter are isometrical; the effect that makes tubing string placed in the middle of playing not only can be arranged; and be lowered in the process and can preferentially and wait to subsidize the sleeve outer wall friction at expansion tube, effectively protect the expansion tube rubber layer, the protection ring trapezium structure can be guaranteed the unobstructed property that it is lowered in sleeve pipe.After having treated down last root expansion tube, the outlet pipe nipple that expands is installed on this root expansion tube, pipe nipple top is processed with the left-hand thread box thread.Continue the special-purpose centralizer of expander mounting tube, body part 1 external diameter and the expansion sleeve 6 of centralizer are isometrical, and the oil pipe workbench can be installed.After utilizing workbench to be lowered to the make-up of central tube and expansion tubing string, take off workbench, utilize central tube that the expansion tube string is lowered into design subsidy position, the construction of expanding.When expansion cone was expanded to rubber layer protection ring 5 places, because it adopts aluminium to make, protection ring can be squeezed at expansion tube and quilt and be subsidized in the annular space of sleeve pipe.When expansion cone finally is expanded to the special-purpose centralizer threaded portion of expand outlet pipe nipple and expansion tube, because the first expansion box thread of expansion cone,, and can not be inflated so this screw thread can be thrown off.Carry central tube in the continuation and utilize bloat tool that centralizer is proposed well head, finish the construction of expanding.
Claims (3)
1. the horizontal well sheath repairing expansion tube is lowered to kit; comprise the special-purpose centralizer of expansion tube and rubber layer protection ring [5] two parts composition; centralizer by body part [1], set upright part [2] and threaded portion [3] three parts and form; body part [1] external diameter and the expansion sleeve [6] that it is characterized in that centralizer are isometrical; it is identical with expansion sleeve starter [7] external diameter to set upright part [2] external diameter, and rubber layer protection ring [5] is installed in rubber [4] bottom.
2. horizontal well sheath repairing expansion tube as claimed in claim 1 is lowered to kit, it is characterized in that: threaded portion [3] links to each other with the expansion tube upper end, and this screw thread is the left-hand thread short thread.
3. horizontal well sheath repairing expansion tube as claimed in claim 1 is lowered to kit, it is characterized in that: rubber layer protection ring [5] adopts aluminum to make, and profile is a trapezium structure, and external diameter is greater than the external diameter of rubber [4].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201579618U CN201705257U (en) | 2009-06-05 | 2009-06-05 | Expansion pipe running assorted tool for patching of horizontal well casings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201579618U CN201705257U (en) | 2009-06-05 | 2009-06-05 | Expansion pipe running assorted tool for patching of horizontal well casings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201705257U true CN201705257U (en) | 2011-01-12 |
Family
ID=43442412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201579618U Expired - Lifetime CN201705257U (en) | 2009-06-05 | 2009-06-05 | Expansion pipe running assorted tool for patching of horizontal well casings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201705257U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061700A (en) * | 2011-10-21 | 2013-04-24 | 中国石油化工股份有限公司 | Casing pipe dislocation horizontal well correction and repair method and dedicated integration tools of casing pipe dislocation horizontal well correction and repair |
| CN104100212A (en) * | 2013-04-15 | 2014-10-15 | 上海海隆石油钻具有限公司 | Anti-collapsing and anti-striking protection drilling rod |
-
2009
- 2009-06-05 CN CN2009201579618U patent/CN201705257U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061700A (en) * | 2011-10-21 | 2013-04-24 | 中国石油化工股份有限公司 | Casing pipe dislocation horizontal well correction and repair method and dedicated integration tools of casing pipe dislocation horizontal well correction and repair |
| CN104100212A (en) * | 2013-04-15 | 2014-10-15 | 上海海隆石油钻具有限公司 | Anti-collapsing and anti-striking protection drilling rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA PETROLEUM + CHEMICAL VICTORY OIL ENGINEERING Effective date: 20150401 Owner name: SINOPEC OILFIELD SERVICE CORPORATION Free format text: FORMER OWNER: WELL-DRILLING TECHNOLOGY INST., SHENGLI PETROLEUM ADMINISTRATION, SINOPEC Effective date: 20150401 |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 257017 DONGYING, SHANDONG PROVINCE TO: 100029 CHAOYANG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150401 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 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110112 |
|
| CX01 | Expiry of patent term |