CN2911170Y - Non-rotation deformable drill string stabilizer - Google Patents
Non-rotation deformable drill string stabilizer Download PDFInfo
- Publication number
- CN2911170Y CN2911170Y CN 200620033501 CN200620033501U CN2911170Y CN 2911170 Y CN2911170 Y CN 2911170Y CN 200620033501 CN200620033501 CN 200620033501 CN 200620033501 U CN200620033501 U CN 200620033501U CN 2911170 Y CN2911170 Y CN 2911170Y
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- CN
- China
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- endoporus
- appearance
- epimere
- diameter
- top connection
- Prior art date
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- Expired - Fee Related
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Abstract
A non-rotating deformable drill-string stabilizer belongs to the technology filed of the drilling tool and accessories. The technical problems to be resolved are to provide a non-rotating deformable drill-string stabilizer installed on the string. The technology scheme used to resolve the technology problem includes a top joint, a base joint and a deformable sleeve; male screws are set on the lower segment of the top joint; internal threads are set on the upper segment of the inner hole; males screws are set on the lower segment of the base joint, internal threads are set on the upper segment of the inner hole; the internal thread on the upper segment of the inner hole combine the male screws on the lower segment of the top joint; The deformable sleeve are a cylinder, bigger in the middle while smaller on the two ends, made of spring steel; installed outside the combined top joint middle segment and base joint upper segment, the length is a little less than that of the top joint middle segment and base joint upper segment; several vertical grooves are set on the middle segment of the deformable sleeve. The unity model is applied to drilling tools with a favorable effect to keep the stability of the drill string effectively without deflection, reduce torque and the damage to the side wall and prevent stuck pipe. The unity model is applicable to drilling operation.
Description
Technical field
The utility model belongs to well drilling tool and attachment technique field thereof.
Background technology
In drilling well, prevent well deflection between two parties for making drill string, should use drilling equipment.The prior art drilling string stabilizer is the stiff stability device, and its weak point is that the stiff stability device can produce very big moment of torsion in the drill string rotating process, can destroy the borehole wall, and blocked portion takes place easily.
Summary of the invention
Technical problem to be solved provides a kind of non-rotating deformable drilling string stabilizer that is contained on the drill string.
The technical scheme that solves its technical problem is as follows: non-rotating deformable drilling string stabilizer comprises top connection, lower contact and deformable sleeve; Top connection is the tube that centre bore is arranged, and appearance is divided into three sections, and appearance epimere diameter is bigger, and the stage casing diameter is less, has external screw thread, endoporus to be divided into two sections on the hypomere, and the endoporus epimere has internal thread, and the internal diameter of endoporus hypomere is less than endoporus epimere internal diameter; Lower contact is the tube that centre bore is arranged, appearance is divided into three sections, the diameter of appearance epimere equals the diameter in top connection appearance stage casing, the diameter in stage casing is greater than the epimere diameter, hypomere has external screw thread, and endoporus is divided into two sections, and the endoporus epimere has internal thread, endoporus hypomere internal diameter equals top connection endoporus hypomere internal diameter, and the internal thread of lower contact endoporus epimere combines with the external screw thread of top connection appearance hypomere; The diameter broad in the middle two little cylindrical shell of deformable sleeve for making by spring steel, the endoporus of deformable sleeve is divided into three sections, the internal diameter of endoporus epimere is slightly larger than the diameter in top connection appearance stage casing, the internal diameter of endoporus hypomere is slightly larger than the diameter of lower contact appearance epimere, deformable sleeve be contained in conjunction with after top connection appearance stage casing and the outside of lower contact appearance epimere, its length be slightly less than in conjunction with after top connection appearance stage casing and the length of lower contact appearance epimere, several vertical grooves are arranged on the stage casing of deformable sleeve; The internal thread of top connection endoporus epimere combines with the external screw thread that a last joint bores 2 lower ends, and the external screw thread of lower contact appearance hypomere combines with the internal thread of next Jie Zuan Collars endoporus epimere.
Beneficial effect: the utility model is applied to well drilling tool.Beneficial effect is can keep drill string effectively stable, prevent well deflection, can reduce moment of torsion, reduce destruction to the borehole wall, the prevention blocked portion, simple in structure, and the elasticity that can utilize self is set upright the material absorption because of suppressing the drill string oscillation crosswise that bouncing of drilling tool causes, improve the application life of drill string and drill bit, guarantee drilling quality, be suitable for adopting in the drillng operation.
Description of drawings
Fig. 1 is the utility model structure chart.Among Fig. 1,1 is top connection, and 2 are lower contact, and 3 is deformable sleeve, and 4 is groove.
The specific embodiment
The specific embodiment is as follows: comprise top connection 1, lower contact 2 and deformable sleeve 3: top connection 1 is for there being the tube of centre bore, appearance is divided into three sections, appearance epimere diameter is bigger, the stage casing diameter is less, external screw thread is arranged on the hypomere, endoporus is divided into two sections, and the endoporus epimere has internal thread, and the internal diameter of endoporus hypomere is less than endoporus epimere internal diameter; Lower contact 2 is for there being the tube of centre bore, appearance is divided into three sections, the diameter of appearance epimere equals the diameter in top connection appearance stage casing, the diameter in stage casing is greater than the epimere diameter, hypomere has external screw thread, and endoporus is divided into two sections, and the endoporus epimere has internal thread, endoporus hypomere internal diameter equals top connection endoporus hypomere internal diameter, and the internal thread of lower contact 2 endoporus epimeres combines with the external screw thread of top connection 1 appearance hypomere; The diameter broad in the middle two little cylindrical shell of deformable sleeve 3 for making by spring steel, the endoporus of deformable sleeve 3 is divided into three sections, the internal diameter of endoporus epimere is slightly larger than the diameter in top connection 1 appearance stage casing, the internal diameter of endoporus hypomere is slightly larger than the diameter of lower contact 2 appearance epimeres, deformable sleeve 3 be contained in conjunction with after top connection 1 stage casing and the outside of lower contact 2 epimeres, its length is slightly less than the appearance stage casing of the top connection 1 after the combination and the length of lower contact 2 appearance epimeres, and several vertical grooves 4 are arranged on the stage casing of deformable sleeve 3; The internal thread of top connection 1 endoporus epimere combines with the external screw thread of a last Jie Zuan Collars lower end, and the external screw thread of lower contact 2 appearance hypomeres combines with the internal thread of next Jie Zuan Collars endoporus epimere.
Claims (1)
1. non-rotating deformable drilling string stabilizer is characterized in that comprising top connection (1), lower contact (2) and deformable sleeve (3); Top connection (1) is for there being the tube of centre bore, and appearance is divided into three sections, and appearance epimere diameter is bigger, and the stage casing diameter is less, and external screw thread is arranged on the hypomere, and endoporus is divided into two sections, and the endoporus epimere has internal thread, and the internal diameter of endoporus hypomere is less than endoporus epimere internal diameter; Lower contact (2) is for there being the tube of centre bore, and appearance is divided into three sections, and the diameter of appearance epimere equals the diameter in top connection (1) appearance stage casing.The diameter in stage casing is greater than the epimere diameter, hypomere has external screw thread, and endoporus is divided into two sections, and the endoporus epimere has internal thread, endoporus hypomere internal diameter equals top connection endoporus hypomere internal diameter, and the internal thread of lower contact (2) endoporus epimere combines with the external screw thread of top connection (1) appearance hypomere; The diameter broad in the middle two little cylindrical shell of deformable sleeve (3) for making by spring steel, the endoporus of deformable sleeve (3) is divided into three sections, the internal diameter of endoporus epimere is slightly larger than the diameter in top connection (1) appearance stage casing, the internal diameter of endoporus hypomere is slightly larger than the diameter of lower contact (2) appearance epimere, deformable sleeve (3) be contained in conjunction with after top connection (1) appearance stage casing and the outside of lower contact (2) appearance epimere, its length be slightly less than in conjunction with after top connection (1) appearance stage casing and the length of lower contact (2) appearance epimere, several vertical grooves (4) are arranged on the stage casing of deformable sleeve (3); The internal thread of top connection (1) endoporus epimere combines with the external screw thread of a last Jie Zuan Collars lower end, and the external screw thread of lower contact (2) appearance hypomere combines with the internal thread of next Jie Zuan Collars endoporus epimere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620033501 CN2911170Y (en) | 2006-03-19 | 2006-03-19 | Non-rotation deformable drill string stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620033501 CN2911170Y (en) | 2006-03-19 | 2006-03-19 | Non-rotation deformable drill string stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2911170Y true CN2911170Y (en) | 2007-06-13 |
Family
ID=38133030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620033501 Expired - Fee Related CN2911170Y (en) | 2006-03-19 | 2006-03-19 | Non-rotation deformable drill string stabilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2911170Y (en) |
-
2006
- 2006-03-19 CN CN 200620033501 patent/CN2911170Y/en not_active Expired - Fee Related
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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: 20070613 |