CN2690584Y - Composite well window expansion casing seal device - Google Patents
Composite well window expansion casing seal device Download PDFInfo
- Publication number
- CN2690584Y CN2690584Y CN 200420003361 CN200420003361U CN2690584Y CN 2690584 Y CN2690584 Y CN 2690584Y CN 200420003361 CN200420003361 CN 200420003361 CN 200420003361 U CN200420003361 U CN 200420003361U CN 2690584 Y CN2690584 Y CN 2690584Y
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- expansion
- sleeve
- casing
- compound
- well
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Abstract
The utility model discloses a composite well window expansion casing seal device for well completion of composite well in oil field development, belonging to the bergol drilling machinery class. The utility model is composed of a primary casing (1), high elastic material (2), an expanded casing(3), a drill rod(4), a piston (5), an expansion end(6), a composite well casing(7), a sliding sleeve(8), a step(9), a rubber plug(10), a guide shoe(11) and a hollow whipstock(12). In the utility model, an expansion mechanism which comprises an expansion end(6), etc. is adopted to force the expanded casing(3) and the high elastic material (2) to be deformed, and synchronously the different deformation features of the expansion casing(3) and the high elastic material are utilized to realize a sealed composite well window. The utility model with simple structure, convenient construction and safety is one of the effective ways of utilizing mechanical seal composite well wellbore window, being applicable to compound wells, different types of fish bone shaped wells, common sidetracked holes and common sidetracked horizontal wells.
Description
A kind of compound well window expansion sleeve sealing device that is used for the compound well completion of oil field development of technical field belongs to the oil drilling machine class.
The key technology of the compound well completion of background technology is to require compound well well junction to satisfy four property, i.e. mechanics integrality, hydraulic seal, entering and connectedness again.Generally speaking, the mechanics integrality and again entering relatively easily solve, for the hydraulic seal of junction, this is the main difficult technical that is faced with at present both at home and abroad.It directly has influence on the oil production method and the oil recovery efficiency of compound well.At present, as long as be lower than the hydraulic seal problem that all there is window to some extent in the completion system of TAML the 5th hierarchy level.
The summary of the invention the purpose of this utility model provides a kind of compound well window expansion sleeve sealing device, and it can effectively seal the well window, improve well window junction hydraulic seal.
The purpose of this utility model is to realize like this.It is by former sleeve pipe (1), elastomer material (2), expansion sleeve (3), drilling rod (4), piston (5), expansion-head (6), compound casing (7), sliding sleeve (8), spoiler (9), plug (10), guide shoe (11) and hollow wedge deflection tool (12) are formed, its assembled relation is: connect expansion sleeve (3) from top to bottom successively, compound casing (7), spoiler (9) and guide shoe (11), elastomer material (2) is attached to the outside of expansion sleeve (3), sliding sleeve (8) is in compound casing (7) the inside, above the spoiler (9), plug (10) seat was on sliding sleeve (8) when well cementation finished, the complete tubing string of above mutual group; Jointed rod (4), piston (5) and expansion-head (6) successively from top to bottom, more than the common expansion tube post of forming, the expansion tubing string is in the casing string the inside, by expansion-head (6) expansion tubing string and casing string are linked together, and G.I.H together, hollow wedge deflection tool (12) connects successively below hollow wedge deflection tool (12) and goes up directional head, orienting cover down in main borehole, below the compound casing post.
The utility model adopts the expansion mechanism of expansion-head compositions such as (6) to force expansion sleeve (3) and elastomer material (2) distortion, and utilize expansion sleeve (3) different with the deformation characteristic of elastomer material (2), realize sealed composite well window, simple in structure, easy construction, safe and reliable, be one of a kind of effective means of utilizing the compound well well of mechanical seal window, applicable to compound well, dissimilar fishbone shape wells, conventional sidetracked hole and conventional sidetrack horizontal well.
Description of drawings Fig. 1 is compound well window expansion sleeve sealing device schematic diagram.Below in conjunction with accompanying drawing enforcement of the present utility model is described further.
The specific embodiment compound well window expansion sleeve sealing device as shown in Figure 1, it is by former sleeve pipe 1, elastomer material 2, expansion sleeve 3, drilling rod 4, piston 5, expansion-head 6, compound casing 7, sliding sleeve 8, spoiler 9, plug 10, guide shoe 11 and hollow wedge deflection tool 12 are formed, wherein, the modulus of elasticity of elastomer material 2 is far smaller than the modulus of elasticity of expansion sleeve 3, its purpose is, after expansion sleeve 3 expands, under the situation of external force unloading, the elastic recovery distortion of expansion sleeve 3 is less than the distortion of elastomer material 2, can realize the hydraulic seal between former sleeve pipe 1 and the expansion sleeve 3 like this, the diameter at expansion-head 6 places is less than borehole diameter, and hollow wedge deflection tool 12 is guiders of following compound casing.Its assembled relation is: connect expansion sleeve 3, compound casing 7, spoiler 9 and guide shoe 11 from top to bottom successively, elastomer material 2 is attached to the outside of expansion sleeve 3, sliding sleeve 8 is in compound casing 7 the insides, above the spoiler 9,10 of plugs were on sliding sleeve 8 when well cementation finished, the complete tubing string of above mutual group; Jointed rod 4, piston 5 and expansion-head 6 successively from top to bottom, more than the common expansion tube post of forming, the expansion tubing string is in the casing string the inside, by expansion-head 6 expansion tubing string and casing string are linked together, and G.I.H together, hollow wedge deflection tool 12 connects directional head, orienting cover down successively below hollow wedge deflection tool 12 in main borehole, below the compound casing post.
The utility model is implemented in the cementing well process.After the bruising of cemented up slurry moulding plug, plug 10 and sliding sleeve 8 integral body move down the shutoff sleeve bottom, bear the hydraulic pressure in expansion sleeve 3 expansion processes, form a fluid cylinder with expansion-head 6 and sleeve pipe, can bear elevated pressures.Realize that expansion sleeve 3 expands, the active force of sealed window derives from two aspects, the one, suppress by drilling rod, very high hydraulic action is on expansion-head 6, produce thrust upwards, the 2nd, carry the pulling force of drill string from well head, also can in tubing string, insert hydraulic pressure drawing cylinder, increase the drawing expansive force, reduce pump pressure.Under the synergy of above two power, when the size of making a concerted effort during greater than the yield limit of expansion sleeve 3, expansion sleeve 3 beginning yield deformations, its distortion is again under the guiding of expansion-head 6 simultaneously, distortion presents the comparatively shape of rule, and forms the comparatively latus rectum of rule.After above-mentioned operation is finished, need to adopt vertically to mill to bore and get through main borehole.
Claims (4)
1, a kind of compound well window expansion sleeve sealing device that is used for the compound well completion of oil field development, it is characterized in that it is by former sleeve pipe (1), elastomer material (2), expansion sleeve (3), drilling rod (4), piston (5), expansion-head (6), compound casing (7), sliding sleeve (8), spoiler (9), plug (10), guide shoe (11) and hollow wedge deflection tool (12) are formed, its assembled relation is: connect expansion sleeve (3) from top to bottom successively, compound casing (7), spoiler (9) and guide shoe (11), elastomer material (2) is attached to the outside of expansion sleeve (3), sliding sleeve (8) is in compound casing (7) the inside, above the spoiler (9), plug (10) seat was on sliding sleeve (8) when well cementation finished, the complete tubing string of above mutual group; Jointed rod (4), piston (5) and expansion-head (6) successively from top to bottom, more than the common expansion tube post of forming, the expansion tubing string links together expansion tubing string and casing string by expansion-head (6) in the casing string the inside, and G.I.H together.
2, compound well window expansion sleeve sealing device according to claim 1 is characterized in that the modulus of elasticity of elastomer material (2) is far smaller than the modulus of elasticity of expansion sleeve (3).
3, compound well window expansion sleeve sealing device according to claim 1 is characterized in that diameter that expansion-head (6) locates is less than borehole diameter.
4, compound well window expansion sleeve sealing device according to claim 1, plug (10) and sliding sleeve (8) integral body move down the shutoff sleeve bottom after it is characterized in that cementing the well, bear the hydraulic pressure in expansion sleeve (3) expansion process, form a fluid cylinder with expansion-head (6) and sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420003361 CN2690584Y (en) | 2004-02-06 | 2004-02-06 | Composite well window expansion casing seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420003361 CN2690584Y (en) | 2004-02-06 | 2004-02-06 | Composite well window expansion casing seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2690584Y true CN2690584Y (en) | 2005-04-06 |
Family
ID=34667681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420003361 Expired - Fee Related CN2690584Y (en) | 2004-02-06 | 2004-02-06 | Composite well window expansion casing seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2690584Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102049652A (en) * | 2009-10-29 | 2011-05-11 | 天津市亚星散热器有限公司 | Method for fixing tube base from lateral side of water chamber |
| CN102203376A (en) * | 2008-09-25 | 2011-09-28 | 哈利伯顿能源服务公司 | Pressure relieving transition joint |
-
2004
- 2004-02-06 CN CN 200420003361 patent/CN2690584Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102203376A (en) * | 2008-09-25 | 2011-09-28 | 哈利伯顿能源服务公司 | Pressure relieving transition joint |
| CN102203376B (en) * | 2008-09-25 | 2015-05-20 | 哈利伯顿能源服务公司 | Pressure relieving transition joint |
| CN102049652A (en) * | 2009-10-29 | 2011-05-11 | 天津市亚星散热器有限公司 | Method for fixing tube base from lateral side of water chamber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Jinpan Science &. Technology Co., Ltd., Panjin Zhang Yan Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Panjin Gold Technology Co., Ltd. Zhang Yan Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050406 Termination date: 20120206 |