CN106014286A - Damping centering guide structure for inclined shaft screw drill - Google Patents
Damping centering guide structure for inclined shaft screw drill Download PDFInfo
- Publication number
- CN106014286A CN106014286A CN201610413422.0A CN201610413422A CN106014286A CN 106014286 A CN106014286 A CN 106014286A CN 201610413422 A CN201610413422 A CN 201610413422A CN 106014286 A CN106014286 A CN 106014286A
- Authority
- CN
- China
- Prior art keywords
- centering guide
- fin
- sleeve pipe
- hydraulic motor
- screw drill
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1042—Elastomer protector or centering means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/02—Scrapers specially adapted therefor
Abstract
The invention discloses a damping centering guide structure for an inclined shaft screw drill. The damping centering guide structure for the inclined shaft screw drill comprises a screw drill axial shell and a connector body connected with the upper end of the screw drill axial shell, and a limiting groove is formed in the middle portion of the connector body. The connector body in the limiting groove is slidably sleeved with a nylon centering guide casing pipe. A plurality of buffering cavities are evenly formed in the outer side of the nylon centering guide casing pipe. Limiting cavities are formed in the two sides of each buffering cavity. Convex ribs are slidably arranged in the buffering cavities respectively. Limiting blocks matched with the limiting cavities are arranged on the two sides of one end of each convex rib respectively, and the other end of each convex rib extends out of the nylon centering guide casing pipe. A plurality of spring grooves are evenly formed in the inner side of each convex rib. Springs matched with the spring grooves are arranged in the spring grooves in the radial direction. The inner sides of the springs abut against the nylon centering guide casing pipe, the outer sides of the springs abut against the convex ribs, and the outer surfaces of the convex ribs are higher than the outer surface of the screw drill axial shell and the outer surface of the connector body.
Description
Technical field
The present invention relates to a kind of petroleum machinery, particularly relate to a kind of inclined shaft helicoid hydraulic motor damping centralizer structure.
Background technology
Petroleum resources are a kind of non-renewable resources, increasing along with oil exploitation potentiation control DTH hammer bit, oil drilling, workover treatment gradually extend to deeper more complicated geology, and inclined shaft, horizontal well and service shaft are more and more, and some is owing to drilling technology is the most perfect, some is operation needs, due to casing deformation, bending, tiltedly stretch, when simple drill removes, casing wall can be often struck at and cause drilling tool impaired, easily accumulate silt and wax deposition simultaneously in sleeve pipe, have a strong impact on the use of helicoid hydraulic motor.
Summary of the invention
The technical problem to be solved is: provide the inclined shaft helicoid hydraulic motor damping centralizer structure of a kind of good buffer effect.
nullIn order to solve above-mentioned technical problem，The technical solution used in the present invention is: inclined shaft helicoid hydraulic motor damping centralizer structure，Including: helicoid hydraulic motor axial shell and the fittings body being connected with helicoid hydraulic motor axial shell upper end，The middle part of described fittings body is provided with stopper slot，On fittings body in described stopper slot, slip cap is provided with nylon centralising device sleeve pipe，It is evenly arranged with some cushion chambers in the outside of described nylon centralising device sleeve pipe，It is respectively arranged with limit chamber in the both sides of described cushion chamber，Slide respectively in described cushion chamber and be provided with fin，It is respectively arranged with the limited block cooperated with limit chamber in the both sides, one end of described fin，The other end of described fin stretches out nylon centralising device sleeve pipe，It is evenly arranged with some spring grooves in the inner side of described fin，Radially it is provided with the spring cooperated with it in spring groove，The inner side of spring offsets with nylon centralising device sleeve pipe，The outside of spring offsets with fin，The outer surface of described fin exceeds the outer surface of helicoid hydraulic motor axial shell and fittings body.
The invention have the advantage that above-mentioned inclined shaft helicoid hydraulic motor damping centralizer structure; in horizontal well, inclined shaft and service shaft during drilling; if shock casing wall; fin on nylon centralising device sleeve pipe compression spring contraction can play cushioning effect; can effective bumper and absorbing shock; it is easy to remove; protection drilling tool and sleeve pipe; during drilling tool removes, nylon centralising device sleeve pipe can rotate on fittings body thus drive fin to rotate simultaneously; can effectively remove the silt in sleeve pipe and wax deposition; extend the service life of helicoid hydraulic motor, improve oil recovery efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of inclined shaft helicoid hydraulic motor damping centralizer structure of the present invention.
In figure: 1, helicoid hydraulic motor axial shell, 2, fittings body, 3, stopper slot, 4, nylon centralising device sleeve pipe, 5, cushion chamber, 6, limit chamber, 7, fin, 8, limited block, 9, spring groove, 10, spring.
Detailed description of the invention
The particular content of the present invention is described in detail below in conjunction with the accompanying drawings with specific embodiment.
As it is shown in figure 1, inclined shaft helicoid hydraulic motor damping centralizer structure, including: helicoid hydraulic motor axial shell 1
nullAnd the fittings body 2 being connected with helicoid hydraulic motor axial shell 1 upper end，The middle part of described fittings body 2 is provided with stopper slot 3，On fittings body 2 in described stopper slot 3, slip cap is provided with nylon centralising device sleeve pipe 4，It is evenly arranged with some cushion chambers 5 in the outside of described nylon centralising device sleeve pipe 4，It is respectively arranged with limit chamber 6 in the both sides of described cushion chamber 5，Slide respectively in described cushion chamber 5 and be provided with fin 7，The limited block 8 cooperated with limit chamber 6 it is respectively arranged with in the both sides, one end of described fin 7，The other end of described fin 7 stretches out nylon centralising device sleeve pipe 4，It is evenly arranged with some spring grooves 9 in the inner side of described fin 7，Radially it is provided with the spring 10 cooperated with it in spring groove 9，The inner side of spring 10 offsets with nylon centralising device sleeve pipe 4，The outside of spring 10 offsets with fin 7，The outer surface of described fin 7 exceeds helicoid hydraulic motor axial shell 1 and the outer surface of fittings body 2.
Above-mentioned inclined shaft helicoid hydraulic motor damping centralizer structure; in horizontal well, inclined shaft and service shaft during drilling; if shock casing wall; fin 7 forced compression with spring 10; fin 7 is toward cushion chamber 5 contract, and fin 7 drives limited block 8 to slide in limit chamber 6 simultaneously, can effective bumper and absorbing shock; it is easy to remove, protection drilling tool and sleeve pipe；During removing, after the active force by water or oil, nylon centralising device sleeve pipe 4 rotates on fittings body 2, and the some fins 7 outside nylon centralising device sleeve pipe 4 drive rotate, and fin 7 can effectively remove the silt on internal surface of sleeve pipe and wax deposition.
Above-mentioned inclined shaft helicoid hydraulic motor damping centralizer structure; in horizontal well, inclined shaft and service shaft during drilling; if shock casing wall; fin on nylon centralising device sleeve pipe compression spring contraction can play cushioning effect; can effective bumper and absorbing shock; it is easy to remove; protection drilling tool and sleeve pipe; during drilling tool removes, nylon centralising device sleeve pipe can rotate on fittings body thus drive fin to rotate simultaneously; can effectively remove the silt in sleeve pipe and wax deposition; extend the service life of helicoid hydraulic motor, improve oil recovery efficiency.
Claims (1)
- null1. inclined shaft helicoid hydraulic motor damping centralizer structure，It is characterized in that: including: helicoid hydraulic motor axial shell (1) and the fittings body (2) being connected with helicoid hydraulic motor axial shell (1) upper end，The middle part of described fittings body (2) is provided with stopper slot (3)，The upper slip cap of fittings body (2) in described stopper slot (3) is provided with nylon centralising device sleeve pipe (4)，It is evenly arranged with some cushion chambers (5) in the outside of described nylon centralising device sleeve pipe (4)，It is respectively arranged with limit chamber (6) in the both sides of described cushion chamber (5)，Slide respectively in described cushion chamber (5) and be provided with fin (7)，The limited block (8) cooperated with limit chamber (6) it is respectively arranged with in the both sides, one end of described fin (7)，The other end of described fin (7) stretches out nylon centralising device sleeve pipe (4)，It is evenly arranged with some spring grooves (9) in the inner side of described fin (7)，Radially it is provided with the spring (10) cooperated with it in spring groove (9)，The inner side of spring (10) offsets with nylon centralising device sleeve pipe (4)，The outside of spring (10) offsets with fin (7)，The outer surface of described fin (7) exceeds helicoid hydraulic motor axial shell (1) and the outer surface of fittings body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610413422.0A CN106014286A (en) | 2016-06-14 | 2016-06-14 | Damping centering guide structure for inclined shaft screw drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610413422.0A CN106014286A (en) | 2016-06-14 | 2016-06-14 | Damping centering guide structure for inclined shaft screw drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106014286A true CN106014286A (en) | 2016-10-12 |
Family
ID=57087436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610413422.0A Pending CN106014286A (en) | 2016-06-14 | 2016-06-14 | Damping centering guide structure for inclined shaft screw drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106014286A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112127875A (en) * | 2019-06-25 | 2020-12-25 | 中国石油天然气股份有限公司 | Damping device of wireless inclinometer |
| CN112012671B (en) * | 2020-10-19 | 2021-01-15 | 胜利油田固邦石油装备有限责任公司 | Anti-deformation elastic sleeve centralizer |
-
2016
- 2016-06-14 CN CN201610413422.0A patent/CN106014286A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112127875A (en) * | 2019-06-25 | 2020-12-25 | 中国石油天然气股份有限公司 | Damping device of wireless inclinometer |
| CN112012671B (en) * | 2020-10-19 | 2021-01-15 | 胜利油田固邦石油装备有限责任公司 | Anti-deformation elastic sleeve centralizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161012 |