CN201292764Y - Branch downhole sleeve pipe autorotation apparatus - Google Patents
Branch downhole sleeve pipe autorotation apparatus Download PDFInfo
- Publication number
- CN201292764Y CN201292764Y CN 200820219674 CN200820219674U CN201292764Y CN 201292764 Y CN201292764 Y CN 201292764Y CN 200820219674 CN200820219674 CN 200820219674 CN 200820219674 U CN200820219674 U CN 200820219674U CN 201292764 Y CN201292764 Y CN 201292764Y
- Authority
- CN
- China
- Prior art keywords
- inner core
- inner cylinder
- sealing ring
- limited step
- limiting step
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 238000010276 construction Methods 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 210000000664 rectum Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Abstract
The utility model relates to an automatic rotating device of a lower sleeve pipe of a branching well for the completion of petroleum extraction multiple branching wells, which comprises an outer cylinder, an upper sealing ring, an upper inner cylinder position-limiting step, an inner cylinder spiral orbit, a spiral positioning directional pin, a lower inner cylinder position-limiting step, a lower sealing ring and an inner cylinder, wherein the outer cylinder and the upper sealing ring are sleeved on the upper inner cylinder position-limiting step, the inner cylinder spiral orbit is arranged on the upper inner cylinder position-limiting step, the lower inner cylinder position-limiting step is arranged on the inner cylinder, the lower sealing ring is sleeved outside the inner cylinder, and the outer cylinder and the inner cylinder are fixed by the spiral positioning directional pin. The utility model solves the problems that because the space in the technical sleeve pipe is small and is influenced by various factors, the device is not hung in place, and the subsequent construction is influenced to extend a construction period. The device can be widely used for the well completion operation of multiple branching wells.
Description
Technical field:
The utility model relates to the Multilateral Wells setting of casing automatic rotating device that a kind of oil exploitation multilateral well completion is used.
Background technology:
Liaohe Oil Field Multilateral Wells technology has reached TAML level Four level at present, many mouthfuls of test wells have been finished at present, in the well-completing process process, rely on the directed hanger of spiral positioning to cooperate with hollow wedge deflection tool, finish and hang the also formation of down-hole threeway simultaneously, in the completion process, because the space is little in the protective casing, exist very big friction torque between big section tail pipe and the bore hole, hung in the present extension process so spiral positioning is directed, be subjected to the factor affecting of various aspects, caused hanging not in place, influence follow-up construction, caused the generation that prolongs duration or down hole problem.
The utility model content:
The purpose of this utility model provides a kind of Multilateral Wells setting of casing automatic rotating device, this device solves exist in the prior art since protective casing in the space little, exist very big friction torque between big section tail pipe and the bore hole, hung in the present extension process so spiral positioning is directed, be subjected to the factor affecting of various aspects, cause suspension not in place, influenced follow-up construction, caused the problem that prolongs the duration.
The technical scheme that its technical problem that solves the utility model adopts is: Multilateral Wells setting of casing automatic rotating device, by urceolus, go up sealing ring, go up the inner core limited step, inner core helical orbit, the directed pin of spiral positioning, inner core limited step, lower seal, inner core are formed down; Inner core helical orbit and limited step directly process on the inner core body, and the directed pin of spiral positioning is directly installed on the urceolus, and sealing ring is the annular clearance that is used for sealing between inner core and the urceolus; Inner core adopts the mode of inserting from the top of urceolus to be installed to the inside of urceolus, and uses the installation site that is limited inner core by limited step; Outer jacket casing, last sealing ring are enclosed within on the inner core limited step, on last inner core limited step, are provided with the inner core helical orbit, on inner core, be provided with inner core limited step down, lower seal is enclosed within outside the inner core, urceolus and the inner core directed dowel fixes of spiral positioning; Be lowered in the tail pipe process in Multilateral Wells, this device is connected the directed hanger of spiral positioning bottom, Multilateral Wells releasing tool top, send tail pipe to incorporate into well with drilling rod, when the spiral hanger normally is lowered into the top of hollow wedge deflection tool, the spiral positioning hanger is subjected to the support of hollow wedge deflection tool tip, be subjected to power upwards, this power makes the feather key of sleeve pipe automatic rotating device combine with guide rail, the urceolus of sleeve pipe auto-guider is rotated, so just driven the directed hanger of spiral positioning and rotated, made the directed hanger of spiral positioning finish to hang and cooperate, finished seat and hang with hollow wedge deflection tool, and formed complete threeway at down-hole window place, after the completion, directly stay in the well, have the mechanical strength same with sleeve pipe as the part of completion tubular column.
The beneficial effects of the utility model are, this apparatus structure is simple, and interior latus rectum is big, and outer latus rectum is little, can satisfy safe G.I.H simultaneously and satisfy two requirements of recovering the oil; In Multilateral Wells completion application process, can assist the directed hanger of spiral positioning effectively to rotate to preposition, guarantee to form the mechanical three-way structure of down-hole completion.To avoiding down hole problem and safe completion smoothly to play a key effect.
Description of drawings:
Fig. 1 is the utility model overall structure schematic diagram.
Fig. 2 is that the inner core limited step launches schematic diagram on the utility model.
Among the figure 1, urceolus, 2, go up sealing ring, 3, go up the inner core limited step, 4, the inner core helical orbit, 5, the directed pin of spiral positioning, 6, inner core limited step down, 7, lower seal, 8, inner core.
The specific embodiment:
In Fig. 1, Multilateral Wells setting of casing automatic rotating device, by urceolus 1, go up sealing ring 2, go up inner core limited step 3, inner core helical orbit 4, the directed pin 5 of spiral positioning, inner core limited step 6, lower seal 7, inner core 8 are formed down; Inner core helical orbit and limited step directly process on the inner core body, and the directed pin 5 of spiral positioning is directly installed on the urceolus 1, and sealing ring is the annular clearance that is used for sealing between inner core and the urceolus; Inner core adopts the mode of inserting from the top of urceolus to be installed to the inside of urceolus, and uses the installation site that is limited inner core by limited step; Overcoat 1, last sealing ring 2 are enclosed within on the inner core limited step 3, on last inner core limited step 3, be provided with inner core helical orbit 4, be provided with inner core limited step 6 down on inner core 8, lower seal 7 is enclosed within outside the inner core 8, urceolus 1 is fixed with the directed pin 5 of inner core 8 usefulness spiral positioning.
In Fig. 2, be laid with 2 road spiral boss in the inner core limited step up and down.
Claims (1)
1, a kind of Multilateral Wells setting of casing automatic rotating device, by urceolus (1), go up sealing ring (2), go up inner core limited step (3), inner core helical orbit (4), the directed pin (5) of spiral positioning, inner core limited step (6), lower seal (7), inner core (8) are formed down; It is characterized in that: overcoat (1), last sealing ring (2) are enclosed within on the inner core limited step (3), on last inner core limited step (3), be provided with inner core helical orbit (4), on inner core (8), be provided with inner core limited step (6) down, lower seal (7) is enclosed within outside the inner core (8), and urceolus (1) is fixing with the directed pin of spiral positioning (5) with inner core (8); Be laid with the twice spiral boss in the inner core limited step up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820219674 CN201292764Y (en) | 2008-11-24 | 2008-11-24 | Branch downhole sleeve pipe autorotation apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820219674 CN201292764Y (en) | 2008-11-24 | 2008-11-24 | Branch downhole sleeve pipe autorotation apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201292764Y true CN201292764Y (en) | 2009-08-19 |
Family
ID=41006239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200820219674 Expired - Fee Related CN201292764Y (en) | 2008-11-24 | 2008-11-24 | Branch downhole sleeve pipe autorotation apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201292764Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434103A (en) * | 2011-09-30 | 2012-05-02 | 成都市兴岷江电热电器有限责任公司 | Two-in-one dual-effect rotatable sleeve hole expanding device |
| CN103015979A (en) * | 2012-11-29 | 2013-04-03 | 中国石油集团长城钻探工程有限公司 | Tool and process for locating eye of branch well |
| CN109973023A (en) * | 2017-12-28 | 2019-07-05 | 中石化石油工程技术服务有限公司 | A kind of telescopic setting of casing segmentation tool |
-
2008
- 2008-11-24 CN CN 200820219674 patent/CN201292764Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434103A (en) * | 2011-09-30 | 2012-05-02 | 成都市兴岷江电热电器有限责任公司 | Two-in-one dual-effect rotatable sleeve hole expanding device |
| CN102434103B (en) * | 2011-09-30 | 2013-12-04 | 成都市兴岷江电热电器有限责任公司 | Two-in-one dual-effect rotatable sleeve hole expanding device |
| CN103015979A (en) * | 2012-11-29 | 2013-04-03 | 中国石油集团长城钻探工程有限公司 | Tool and process for locating eye of branch well |
| CN109973023A (en) * | 2017-12-28 | 2019-07-05 | 中石化石油工程技术服务有限公司 | A kind of telescopic setting of casing segmentation tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090819 Termination date: 20111124 |