CN211058742U - Bidirectional reaming stabilizer - Google Patents
Bidirectional reaming stabilizer Download PDFInfo
- Publication number
- CN211058742U CN211058742U CN201921897712.2U CN201921897712U CN211058742U CN 211058742 U CN211058742 U CN 211058742U CN 201921897712 U CN201921897712 U CN 201921897712U CN 211058742 U CN211058742 U CN 211058742U
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- Prior art keywords
- spiral
- belt
- stabilizer
- spiral righting
- reaming
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- 239000003381 stabilizer Substances 0.000 title claims abstract description 35
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 11
- 230000007704 transition Effects 0.000 claims abstract description 10
- 239000000956 alloy Substances 0.000 claims abstract description 8
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 8
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 6
- 230000001788 irregular Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The utility model provides a bidirectional reaming stabilizer, which sequentially comprises a female buckle joint (1), a stabilizer body (2), a spiral righting belt (3) and a male buckle joint (4), and is characterized in that the transition between the two ends of the spiral righting belt (3) and the stabilizer body (2) is two tangent circular arcs respectively, and the two circular arcs are tangent smooth transition with the excircle of the spiral righting belt (3) and the excircle of the stabilizer body (2); the two ends of the spiral righting belt (3) are straight sections, the middle of the spiral righting belt is a spiral section, a plurality of embedding holes are drilled in the outer edge of the whole spiral righting belt (3), ball head hard alloy columns (3-1) are embedded in the embedding holes, and the embedding holes are uniformly distributed on the spiral righting belt. Two-way reaming stabilizer simple structure, stable performance, because also inlay bulb carbide post on the both ends arc surface of spiral righting area, so can play the effect of two-way reaming, the long apparent increase of length of time of single is gone into the well.
Description
Technical Field
The utility model belongs to the technical field of oil drilling instrument, in particular to two-way reaming stabilizer.
Background
In the oil drilling process, various reaming operations are often encountered, the current reaming tool is mainly a roller reamer which is also called a roller stabilizer, and the roller reamer has the following defects: the structure is complicated, and the price is expensive, and the gyro wheel rotates at the roller shaft, and the gyro wheel takes place the card easily under the complicated condition in the pit and hinders the phenomenon, in case the card hinders just must stop the pump and pull out the drilling, puts the gyro wheel reamer out of the ground, and the well is gone into again after changing the gyro wheel. Although the roller reamer can be replaced by a mixing wheel for repeated use, the time for single well descending is not satisfactory.
Disclosure of Invention
To the problem that exists, the utility model aims at prolonging the single time of reaming stabilizer as far as possible and going into the well operation time under the prerequisite that does not increase the operating cost to a two-way reaming stabilizer is provided.
The utility model aims at realizing through the following technical scheme:
a bidirectional reaming stabilizer sequentially comprises a female buckle connector, a stabilizer body, a spiral centering belt and a male buckle connector, wherein two tangent arcs are respectively arranged at the two ends of the spiral centering belt and the transition of the stabilizer body, and the two arcs are tangent smooth transition with the excircle of the spiral centering belt and the excircle of the stabilizer body; the two ends of the spiral righting belt are straight sections, the middle of the spiral righting belt is a spiral section, a plurality of embedding holes are drilled in the outer edge of the whole spiral righting belt, ball head hard alloy columns are embedded in the embedding holes, and the embedding holes are uniformly distributed on the spiral righting belt.
Further, the stabilizer has 5 spiral centralizing belts.
Furthermore, the depth of the embedding hole is 10mm, and the leakage height of the ball head cemented carbide column is 4.8 mm.
The utility model discloses compare prior art's beneficial effect does:
1. the bidirectional reaming stabilizer of the utility model has simple structure and stable performance, the ball head of the hard alloy column protrudes out of the surface of the centralizing belt, is contacted with the irregular well wall and rotates along with the stabilizer to drill, thus having cutting and finishing functions on the well wall, namely having the reaming function; in addition, as the circular arc surfaces at the two ends of the spiral centralizing belt are also embedded with the ball head hard alloy columns, the spiral centralizing belt can play a role in bidirectional reaming, and the time for single trip is obviously prolonged;
2. the two ends of each spiral centering belt and the transition of the stabilizer body are respectively two tangent circular arcs, and the two circular arcs are tangent smooth transition with the excircle of the centering belt and the excircle of the stabilizer body, so that impact can not be generated when a drilling tool is put down;
3. the bidirectional reaming stabilizer of the utility model can be used for various reaming operations, especially for drilling and grinding stratums and also can be used as a stabilizer; can be run between the drill bit and the drill collar to eliminate unnecessary back reaming with a new drill bit.
Drawings
Fig. 1 is a schematic structural view of the bidirectional reaming stabilizer.
Detailed Description
As shown in fig. 1, the present embodiment provides a bidirectional reaming stabilizer, which sequentially includes a box joint 1, a stabilizer body 2, 5 spiral stabilizing belts 3, and a pin joint 4, wherein transitions between two ends of the spiral stabilizing belts 3 and the stabilizer body 2 are two tangent arcs, and the two arcs are smooth transitions tangent to an outer circle of the spiral stabilizing belts and an outer circle of the stabilizer body; the two ends of the spiral righting belt 3 are straight sections, the middle of the spiral righting belt is a spiral section, a plurality of embedded holes are drilled in the outer edge of the whole spiral righting belt, ball head hard alloy columns 3-1 are embedded in the embedded holes, and the embedded holes are uniformly distributed on the spiral righting belt.
The depth of the embedding hole is 10mm, and the leakage height of the ball head cemented carbide column 3-1 is 4.8 mm.
In the bidirectional reaming stabilizer of the embodiment, ball head hard alloy columns are embedded on each spiral centering belt and arc surfaces at two ends, the ball heads of the hard alloy columns protrude out of the surface of the centering belt, are in contact with an irregular well wall and do rotary drilling motion along with the stabilizer, and thus cutting and finishing effects are achieved on the well wall.
Claims (3)
1. A bidirectional reaming stabilizer sequentially comprises a female buckle connector (1), a stabilizer body (2), a spiral centering belt (3) and a male buckle connector (4), and is characterized in that the transition between two ends of the spiral centering belt (3) and the stabilizer body (2) is two tangent circular arcs respectively, and the two circular arcs are tangent smooth transition with the excircle of the spiral centering belt (3) and the excircle of the stabilizer body (2); the two ends of the spiral righting belt (3) are straight sections, the middle of the spiral righting belt is a spiral section, a plurality of embedding holes are drilled in the outer edge of the whole spiral righting belt (3), ball head hard alloy columns (3-1) are embedded in the embedding holes, and the embedding holes are uniformly distributed on the spiral righting belt.
2. A stabilizer for two-way reaming according to claim 1, characterized in that it has 5 helical stabilizing belts (3).
3. The stabilizer according to claim 1 or 2, wherein the depth of the insert hole is 10mm, and the leakage height of the ball head cemented carbide post (3-1) is 4.8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921897712.2U CN211058742U (en) | 2019-11-06 | 2019-11-06 | Bidirectional reaming stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921897712.2U CN211058742U (en) | 2019-11-06 | 2019-11-06 | Bidirectional reaming stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211058742U true CN211058742U (en) | 2020-07-21 |
Family
ID=71596086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921897712.2U Active CN211058742U (en) | 2019-11-06 | 2019-11-06 | Bidirectional reaming stabilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211058742U (en) |
-
2019
- 2019-11-06 CN CN201921897712.2U patent/CN211058742U/en active Active
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