CN201184191Y - Orientation direct head capable of measuring direction of self-floating and dragging instrument - Google Patents
Orientation direct head capable of measuring direction of self-floating and dragging instrument Download PDFInfo
- Publication number
- CN201184191Y CN201184191Y CNU2008200796247U CN200820079624U CN201184191Y CN 201184191 Y CN201184191 Y CN 201184191Y CN U2008200796247 U CNU2008200796247 U CN U2008200796247U CN 200820079624 U CN200820079624 U CN 200820079624U CN 201184191 Y CN201184191 Y CN 201184191Y
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- adapter
- floating
- joint body
- positioning adapter
- directional
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Abstract
A directional straight adapter of a self-floating throwing-pulling instrument can measure locations and is applied to petroleum drilling. The directional straight adapter is characterized in that a positioning bushing is arranged inside an adapter body; a central hole is formed in the positioning bushing; a directional key is arranged on the inner wall of the positioning bushing; the inner cylindrical surface of the adapter body is in sliding fit with the outer cylindrical surface of the positioning bushing; a screw hole is formed on the wall of the adapter body and perpendicular to the outer wall of the adapter body; a posting screw is arranged in the screw hole; and the positioning screw is screwed tightly to press tightly the positioning bushing so as to fix the positioning bushing in the adapter body. The directional straight adapter has the advantages that the self-floating throwing-pulling instrument can be suitable for directional construction after the positions of a centering device and the directional straight adapter are adjusted; the measurement is accurate; the problem that a directional winch requires longer time is relieved; the direction period is reduced; the crossover adapter is not needed, the number of fitting adapters underground is reduced; and the safety of drilling devices underground is ensured.
Description
Technical field
The utility model relates to a kind of oil drilling downhole tool, be a kind of be specifically designed to orientation and directed intact after can self-floating, pulling self-floating apparatus measures is to the directed straight joint in orientation.
Background technology
Directed construction is important construction technology technology in the drilling well manufacturing process, can not only carry out the special project service, and is the effective means of control wellbore quality.In the construction of long-term orientation, the wellbore quality monitoring after orientation finished all needs deviational survey car tracking measurement.The deviational survey car tracking measurement cycle is longer, generally needs 2-3 days time, and it is more to delay the engineering time, and the measuring operation more complicated.Single-point self-floating, pulling self-floating inclinometer are a kind of convenience, effective survey tool.Because directed straight joint is in that the no magnetic of distance bores the position of enduring more than 2 meters below the centralizer in directed drilling tool structure.Drilling tool structure is expressed as follows from bottom to top: drill bit+screw rod+directed straight joint+centralizer+no magnetic bores very+bores very+drilling rod.Directed straight joint is in the bottom of centralizer.Retrievable type also has only 2 meters from floating inclinometer storehouse under the situation of band extension bar, entering no magnetic brill very, also just can't measure correct orientation when measuring.
Bore very can't entering no magnetic when measuring from floating inclinometer storehouse for solving retrievable type, the deficiency in orientation that can't correct measurement is studied by analysis, and directed straight joint is improved.The top of centralizer is adjusted in the position of directed straight joint in drilling tool structure, and drilling tool structure is adjusted into expression from bottom to top: drill bit+screw rod+centralizer+directed straight joint+no magnetic bores very+bores very+drilling rod.Directed straight joint is moved on to top from original centralizer bottom, directly and no magnetic brill very be connected, so just can satisfy the requirement of self-floating, pulling self-floating apparatus measures to the orientation.After but the position of centralizer and directed straight joint was adjusted, original directed straight joint structure can not adapt to this requirement.
The utility model content
The purpose of this utility model is: change directed straight joint structure but provide a kind of from floating, the directed straight joint of pulling instrument interception, adapt to the adjusted directed construction in position of centralizer and directed straight joint; The centralizer that the structure that overcomes original directed straight joint can not satisfy different button-types does not have magnetic with different button-types and bores the deficiency that very is connected.
The technical scheme in the invention for solving the technical problem is: but floating certainly, the directed straight joint of pulling instrument interception mainly form by joint body and neck bush, at an end of joint body the drilling tool internal thread is arranged, the other end of joint body has the drilling tool external screw thread.It is characterized in that: in joint body inside positioning adapter is arranged, positioning adapter has centre bore.On the inwall of positioning adapter, directional bond is arranged.Be slidingly matched between joint body inner cylinder face and the positioning adapter external cylindrical surface.The screw hole that perpendicular outer wall is arranged on the joint body wall has dog screw in the screw hole.Compress positioning adapter after dog screw screws, positioning adapter can be fixed in the joint body.
Described positioning adapter upper surface is an internal conical surface.The tapering of internal conical surface is between 60 °～120 °.
The upper surface of described positioning adapter is in the bottom of internal thread 1.
The internal thread at joint body two ends can be taked three kinds of different button-types: NC461 * NC460, NC461 * 410,411 * 410 with external screw thread.The method for expressing of internal thread and external screw thread button-type is the method for expressing that those skilled in the art are familiar with.
The beneficial effects of the utility model: but the utility model can adapt to the adjusted directed construction in position of centralizer and directed straight joint from floating, the directed straight joint of pulling instrument interception.Directed straight joint moves on to directly to bore with no magnetic more than the centralizer with upper/lower positions from centralizer and very is connected.After finishing, the orientation construction can measure orientation accurately, wellbore quality is detected so that Controlling Borehole Trajectory, and having reduced directed winch needs several days problem of tracking measurement, has solved directed winch complicated operation, the problem that time spent is long has been saved the directed cycle; Can very be connected with the centralizer of different button-types and the no magnetic brill of different button-types very easily by three kinds of directed straight joints, not need crossover sub, also reduce the cooperation joint of down-hole, guarantee the safety of drilling tool in the down-hole.But utilize from floating, the directed straight joint construction of pulling instrument interception, can form a kind of new technology that adopts self-floating, retrievable type inclinometer to carry out the wellbore quality monitoring.
Description of drawings
But Fig. 1 is from floating, the directed straight joint structural profile of pulling instrument interception schematic diagram.
Among the figure, 1. internal thread, 2. positioning adapter, 3. directional bond, 4. dog screw, 5. joint body, 6. external screw thread.
The specific embodiment
Embodiment 1: with an external diameter is 165 millimeters, is example but length is 600 millimeters floating certainly, the directed straight joint of pulling instrument interception, and the utility model is described in further detail.
Consult Fig. 1.But, comprise joint body 5 and neck bush from floating, the directed straight joint of pulling instrument interception.The external diameter of joint body 5 is 165 millimeters, and length is 600 millimeters.End at joint body 5 has drilling tool internal thread 1, and the button-type of internal thread 1 is NC460.The other end of joint body 5 has drilling tool external screw thread 6, and the button-type of external screw thread 6 is NC461.In joint body 5 inside positioning adapter 2 is arranged, the upper surface of positioning adapter 2 is in the bottom of internal thread 1.The upper surface of positioning adapter 2 is an internal conical surface.The tapering of internal conical surface is at 90 °.Positioning adapter 2 has centre bore.Directional bond 3 is arranged on the inwall of positioning adapter 2, and directional bond 3 is flat keys.Be slidingly matched between joint body 5 inner cylinder faces and positioning adapter 2 external cylindrical surfaces.The screw hole of perpendicular outer wall is arranged on joint body 5 walls, dog screw 4 is arranged in the screw hole.Compress positioning adapter 2 after dog screw 4 screws, positioning adapter 2 can be fixed in the joint body 5.
Embodiment 2: consult Fig. 1.Embodiment 2 difference from Example 1 are: internal thread 1 button-type of joint body 5 is NC410.It is NC411 that the other end of joint body 5 has the button-type of external screw thread 6.
By the field trial of four-hole well, but the adjusted directed construction in position floating certainly, that the directed straight joint of pulling instrument interception adapts to centralizer and directed straight joint, and measurement effect is all very desirable, has reached designing requirement.
Claims (4)
1, a kind of from floating, but the directed straight joint of pulling instrument interception, mainly form by joint body (5) and neck bush, end at joint body (5) has drilling tool internal thread (1), the other end of joint body (5) has drilling tool external screw thread (6), it is characterized in that: positioning adapter (2) is arranged in joint body (5) inside, positioning adapter (2) has centre bore, directional bond (3) is arranged on the inwall of positioning adapter (2), be slidingly matched between joint body (5) inner cylinder face and positioning adapter (2) external cylindrical surface, the screw hole that perpendicular outer wall is arranged on joint body (5) wall, dog screw (4) is arranged in the screw hole, compress positioning adapter (2) after dog screw (4) screws, positioning adapter (2) can be fixed in the joint body (5).
2, according to claim 1 but it is characterized in that: the upper surface of described positioning adapter (2) is an internal conical surface from floating, the directed straight joint of pulling instrument interception, and the tapering of internal conical surface is between 60 °～120 °.
But 3, according to claim 1 from floating, the directed straight joint of pulling instrument interception, it is characterized in that: the upper surface of described positioning adapter (2) is in the bottom of internal thread (1).
But 4, according to claim 1 or 2 or 3 described floating certainly, the directed straight joints of pulling instrument interception, it is characterized in that: the internal thread (1) at joint body (5) two ends adopts three kinds of different button-types: NC461 * NC460 with external screw thread (6), NC461 * 410,411 * 410.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200796247U CN201184191Y (en) | 2008-03-28 | 2008-03-28 | Orientation direct head capable of measuring direction of self-floating and dragging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200796247U CN201184191Y (en) | 2008-03-28 | 2008-03-28 | Orientation direct head capable of measuring direction of self-floating and dragging instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201184191Y true CN201184191Y (en) | 2009-01-21 |
Family
ID=40271931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200796247U Expired - Fee Related CN201184191Y (en) | 2008-03-28 | 2008-03-28 | Orientation direct head capable of measuring direction of self-floating and dragging instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201184191Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392602A (en) * | 2011-08-25 | 2012-03-28 | 成都科盛石油科技有限公司 | Separated orientation joint assembly for oil exploration |
-
2008
- 2008-03-28 CN CNU2008200796247U patent/CN201184191Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392602A (en) * | 2011-08-25 | 2012-03-28 | 成都科盛石油科技有限公司 | Separated orientation joint assembly for oil exploration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090121 Termination date: 20150328 |
|
| EXPY | Termination of patent right or utility model |