CN220302119U - Anti-drop device of wireless inclinometer while drilling - Google Patents
Anti-drop device of wireless inclinometer while drilling Download PDFInfo
- Publication number
- CN220302119U CN220302119U CN202322089869.5U CN202322089869U CN220302119U CN 220302119 U CN220302119 U CN 220302119U CN 202322089869 U CN202322089869 U CN 202322089869U CN 220302119 U CN220302119 U CN 220302119U
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- China
- Prior art keywords
- drop
- falling
- sleeve body
- wireless inclinometer
- clamping sleeve
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- 238000005553 drilling Methods 0.000 title claims abstract description 28
- 210000000078 claw Anatomy 0.000 claims description 11
- 210000001503 joint Anatomy 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses an anti-drop device of a wireless inclinometer while drilling, which comprises: an anti-drop circulation sleeve body, a T-shaped block, an anti-drop clamping sleeve and a wear-resistant ring; the anti-drop circulation sleeve body is sleeved on the outer side of one end, provided with the guide shoe, of the wireless inclinometer; the T-shaped block is embedded from the outside of the anti-drop circulation sleeve body and is tightly propped against the wireless inclinometer while drilling; the anti-falling clamping sleeve is sleeved on the outer side of the wireless inclinometer while drilling, one end of the anti-falling clamping sleeve is embedded into the anti-falling circulating sleeve body, and the other end of the anti-falling clamping sleeve is externally sleeved with a wear-resisting ring; the other end of the wear-resistant ring is tightly propped against a step on the outer wall of the wireless inclinometer while drilling. The utility model has reasonable and compact structure and convenient use, and can prevent the wireless inclinometer from falling out of the circulation sleeve by the cooperation of the falling-preventing clamping sleeve and the falling-preventing circulation sleeve body positioning groove, thereby not only expanding the application range of the wireless inclinometer, but also reducing the potential safety hazard.
Description
Technical Field
The utility model relates to the field of drilling engineering in petroleum, coal mine and geological exploration, in particular to an anti-drop device of a wireless inclinometer while drilling.
Background
In the current drilling process, a wireless inclinometer (abbreviated as MWD) instrument is a powerful tool which is necessary for directional operation and compound drilling speed and efficiency improvement, is a most advanced instrument with high technological content, but has great defects and is easy to key off. The sitting key of the wireless inclinometer instrument is generally pressed on the inner key of the circulation sleeve by the weight of the sitting key, and if the drilling tool is not filled with slurry in time in the process of drilling, or the descending speed is too high, the instrument can be disconnected. In a horizontal directional well, the horizontal section wireless inclinometer instrument is almost horizontally placed in a drilling tool, and cannot be pressed on the internal key of the circulation sleeve by self weight, so that the instrument cannot be used in the horizontal directional well at any time. Whether it be a directional well, a compound well or a horizontal well, once the instrument is de-keyed, the instrument will have no signal and there is a safety hazard.
Disclosure of Invention
In order to solve the problems, the utility model provides an anti-drop device of a wireless inclinometer, which is particularly suitable for a 42mm diameter instrument, and can effectively solve the problem that the instrument has no signal due to easy key drop of the wireless inclinometer in a circulating sleeve, and particularly can not be used in a horizontal directional well.
The technical scheme adopted by the utility model is as follows:
the utility model provides a wireless inclinometer anticreep device while drilling, includes: an anti-drop circulation sleeve body, a T-shaped block, an anti-drop clamping sleeve and a wear-resistant ring;
the anti-drop circulation sleeve body is sleeved on the outer side of one end, provided with the guide shoe, of the wireless inclinometer;
the T-shaped block is embedded from the outside of the anti-drop circulation sleeve body and is tightly propped against the wireless inclinometer while drilling;
the anti-falling clamping sleeve is sleeved on the outer side of the wireless inclinometer while drilling, one end of the anti-falling clamping sleeve is embedded into the anti-falling circulating sleeve body, and the other end of the anti-falling clamping sleeve is externally sleeved with a wear-resisting ring;
the other end of the wear-resistant ring is tightly propped against a step on the outer wall of the wireless inclinometer while drilling.
Preferably: an annular groove is formed in the inner wall of the anti-drop circulating sleeve body, and the guide shoe is in butt joint with the annular groove;
the outer wall of the anti-drop circulation sleeve body is radially provided with a T-shaped hole leading to the center, and the T-shaped block is embedded into the T-shaped hole to be in butt joint with a groove on the wireless inclinometer while drilling;
the anti-drop circulation sleeve body is provided with a positioning groove on the inner wall of the inlet end of the instrument, and the anti-drop clamping sleeve is clamped in the positioning groove.
Preferably: one end of the anti-falling clamping sleeve is a clamping sleeve body, the other end of the anti-falling clamping sleeve is overhanging a plurality of anti-falling clamping claws, the ring formed by encircling all the anti-falling clamping claws is smaller than the positioning groove in the shrinking process, and the outer diameter of the anti-falling clamping sleeve is larger than the positioning groove in the opening process.
Preferably: the anti-falling clamping jaw is wedge-shaped, the outer diameter of the root part of the wedge-shaped is larger than that of the clamping sleeve body, and the outer diameter of the tip part of the wedge-shaped is smaller than that of the clamping sleeve body.
Preferably: the anti-falling clamping claws are uniformly distributed along the circumference of the clamping sleeve body.
Preferably: the anti-falling clamping jaw and the anti-falling clamping jaw are integrally formed, and the anti-falling clamping jaw is formed by grooving and dividing on the basis of the clamping sleeve body.
Preferably: and a sealing ring is arranged between the wireless inclinometer and the anti-drop circulation sleeve body.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model has reasonable and compact structure and convenient use, and can prevent the wireless inclinometer from falling out of the circulation sleeve by matching the falling-off prevention cutting sleeve with the positioning groove of the falling-off prevention circulation sleeve body, thereby not only expanding the application range of the wireless inclinometer, but also reducing the potential safety hazard. The guide shoe is also matched with the circulating sleeve body to further fix the instrument. The anti-falling clamping sleeve is tightly pressed on the inclinometer through the wear-resistant sleeve, and the wear-resistant sleeve is blocked at the end part of the instrument step without play.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
FIG. 1 is a schematic view of the anti-drop device of the wireless inclinometer;
FIG. 2 is a schematic diagram of the internal structure of an anti-drop device of a wireless inclinometer;
FIG. 3 is a schematic view of the internal structure of the anti-drop circulation sleeve body;
FIG. 4 is an enlarged view at A of FIG. 2;
fig. 5 is a schematic structural view of the anti-drop ferrule.
In the figure: 1. the anti-drop circulation sleeve comprises an anti-drop circulation sleeve body, a T-shaped block, an anti-drop clamping sleeve, a wear-resistant ring, a sealing ring, a set screw, a wireless inclinometer, a guide shoe, an annular groove, a B.T-shaped hole, a positioning groove, a clamping sleeve body and an anti-drop clamping jaw.
Description of the embodiments
The present utility model will now be described in detail with reference to the accompanying drawings and examples, which form a part hereof, and which together with examples serve to illustrate the utility model. It will be appreciated by those skilled in the art that the following examples are not intended to limit the scope of the utility model, and any equivalent changes or modifications made within the spirit of the utility model should be considered as falling within the scope of the utility model.
As shown in fig. 1 and 2, the anti-drop device of the wireless inclinometer provided by the utility model mainly comprises the following components: the anti-drop circulation sleeve comprises an anti-drop circulation sleeve body 1, a T-shaped block 2, an anti-drop clamping sleeve 3 and a wear-resistant ring 4.
One end of the wireless inclinometer while drilling 11 with the guide shoe 12 penetrates into the anti-drop circulation sleeve body 1. The structure of the anti-drop circulation sleeve body 1 is shown in fig. 3, an annular groove A is arranged on the inner wall of the anti-drop circulation sleeve body 1, and after penetrating, the guide shoe 12 is abutted with the position of the annular groove A to clamp the guide shoe; the outer wall of the anti-drop circulation sleeve body 1 is radially provided with a T-shaped hole B leading to the center, a T-shaped block 2 is embedded into the T-shaped hole B, the T-shaped block 2 is in butt joint with a groove on the wireless inclinometer while drilling, so that the wireless inclinometer is prevented from moving and rotating, and a key function is realized; the anti-drop circulation sleeve body 1 is provided with a positioning groove C on the inner wall of the instrument inlet end, and the positioning groove C is used for clamping the anti-drop clamping sleeve 3.
As shown in fig. 4, the anti-falling clamping sleeve 3 is sleeved on the outer side of the wireless inclinometer while drilling 11, and the anti-falling clamping sleeve 3 plays an important role in the device and can firmly clamp the inclinometer in the circulating sleeve body. The anti-falling clamping sleeve 3 is sleeved on the inclinometer, one end of the anti-falling clamping sleeve 3 is inserted into the anti-falling circulating sleeve body 1 and is in butt joint with the positioning groove C in the anti-falling circulating sleeve body 1, so that the wireless inclinometer while drilling 11 is prevented from falling out of the anti-falling circulating sleeve body 1; the wear-resisting ring 4 is sleeved outside the other end of the anti-falling clamping sleeve 3, the anti-falling clamping sleeve 3 is pressed on the wireless inclinometer while drilling by the wear-resisting ring 4, and the wear-resisting ring 4 plays a role in fixing and protecting the anti-falling clamping sleeve 3.
The wear-resistant ring 4 is sleeved on the outer side of one end of the anti-falling clamping sleeve 3 and is aligned with a step on the upper outer wall of the wireless inclinometer, and the step blocks the wear-resistant ring to prevent the movement of the wear-resistant ring.
The structure of the anti-falling clamping sleeve 3 is shown in fig. 5, one end of the anti-falling clamping sleeve is a clamping sleeve body 31, the other end of the anti-falling clamping sleeve is overhanging a plurality of anti-falling clamping claws 32, and the anti-falling clamping claws 32 are uniformly distributed along the circumference of the clamping sleeve body 31. Further, the ferrule body 31 and the anti-falling jaw 32 are integrally formed, and the anti-falling jaw 32 is formed by grooving and dividing on the basis of the ferrule body 31. The anti-falling jaws 32 have a shrinking and expanding characteristic, all the anti-falling jaws 32 are encircled, the outer diameter of the anti-falling jaws can be smaller than the positioning groove C when the anti-falling jaws are shrunk, and the outer diameter of the anti-falling jaws can be larger than the positioning groove C when the anti-falling jaws are expanded, so that the anti-falling jaws can be clamped in the positioning groove C.
Further, the anti-falling jaw 32 is of a wedge-shaped design, the outer diameter of the root of the wedge is larger than that of the cutting sleeve body 31, the outer diameter of the tip of the wedge is smaller than that of the cutting sleeve body 31, and the anti-falling jaw 32 is a piece of jaw, so that the anti-falling jaw has certain shrinkage elasticity. The anti-falling claw 32 is positively and contractibly embedded into the positioning groove C in the anti-falling circulating sleeve body 1 and then is opened, and the wedge-shaped root is blocked in the positioning groove C and can not be separated in the reverse direction, so that the anti-falling purpose is achieved.
Further, a sealing ring 5 is arranged between the wireless inclinometer 11 and the anti-drop circulation sleeve body 1, so that the sealing effect is improved.
Further, the T-shaped block 2 is fixedly arranged on the anti-falling circulation sleeve body 1 through two set screws 6.
Further, the wear ring 4 is a rubber sleeve.
The working principle of the utility model is as follows: when the wireless inclinometer 11 while drilling enters the inner cavity of the anti-drop circulation sleeve body 1, the overhanging end of the anti-drop claw 32 positioned in the anti-drop circulation sleeve body 1 is forced to enter the positioning groove C in the anti-drop circulation sleeve body 1 under the action of the inner cavity of the anti-drop circulation sleeve body 1, and after the wireless inclinometer 11 sits in place, the overhanging end of the anti-drop claw 32 is just completely blocked in the positioning groove in the anti-drop circulation sleeve body 1, so that the wireless inclinometer while drilling is blocked, and the wireless inclinometer while drilling can be effectively prevented from being de-keyed when vibrating, impacting or drilling a horizontal well.
While embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.
Claims (7)
1. The utility model provides a wireless inclinometer anticreep device while drilling which characterized in that: comprises an anti-drop circulation sleeve body (1), a T-shaped block (2), an anti-drop clamping sleeve (3) and a wear-resistant ring (4);
the anti-drop circulation sleeve body (1) is sleeved on the outer side of one end of the wireless inclinometer (11) with the guide shoe (12);
the T-shaped block (2) is embedded from the outside of the anti-drop circulation sleeve body (1) and is tightly propped against the wireless inclinometer (11);
the anti-falling clamping sleeve (3) is sleeved outside the wireless inclinometer (11), one end of the anti-falling clamping sleeve (3) is embedded into the anti-falling circulating sleeve body (1), and the other end of the anti-falling clamping sleeve is externally sleeved with the wear-resisting ring (4);
the other end of the wear-resistant ring (4) is tightly propped against a step on the outer wall of the wireless inclinometer (11).
2. The wireless inclinometer anti-drop device of claim 1, wherein:
an annular groove (A) is formed in the inner wall of the anti-drop circulating sleeve body (1), and the guide shoe (12) is in butt joint with the annular groove (A);
a T-shaped hole (B) leading to the center is radially formed in the outer wall of the anti-drop circulation sleeve body (1), and the T-shaped block (2) is embedded into the T-shaped hole (B) to be in butt joint with a groove on the wireless inclinometer (11);
the anti-drop circulation sleeve body (1) is provided with a positioning groove (C) on the inner wall of the inlet end of the instrument, and the anti-drop clamping sleeve (3) is clamped in the positioning groove (C).
3. The wireless inclinometer anti-drop device of claim 2, wherein:
one end of the anti-falling clamping sleeve (3) is a clamping sleeve body (31), the other end is overhanging a plurality of anti-falling clamping claws (32),
the outer diameter of the ring surrounded by all the anti-falling clamping claws (32) is smaller than the positioning groove (C) when the ring is contracted, and the outer diameter of the ring is larger than the positioning groove (C) when the ring is opened.
4. The wireless inclinometer anti-drop device of claim 3, wherein:
the anti-falling clamping jaw (32) is wedge-shaped, the outer diameter of the root part of the wedge-shaped is larger than that of the clamping sleeve body (31), and the outer diameter of the tip part of the wedge-shaped is smaller than that of the clamping sleeve body (31).
5. The wireless inclinometer anti-drop device of claim 3 or 4, wherein:
the anti-falling clamping claws (32) are uniformly distributed along the circumference of the clamping sleeve body (31).
6. The wireless inclinometer anti-drop device of claim 3 or 4, wherein:
the anti-falling clamping jaw (32) and the anti-falling clamping jaw (32) are integrally formed, and the anti-falling clamping jaw (32) is formed by slotting and dividing on the basis of the clamping sleeve body (31).
7. The wireless inclinometer anti-drop device of claim 1, wherein:
and a sealing ring (5) is arranged between the wireless inclinometer (11) and the anti-drop circulation sleeve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322089869.5U CN220302119U (en) | 2023-08-04 | 2023-08-04 | Anti-drop device of wireless inclinometer while drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322089869.5U CN220302119U (en) | 2023-08-04 | 2023-08-04 | Anti-drop device of wireless inclinometer while drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220302119U true CN220302119U (en) | 2024-01-05 |
Family
ID=89374891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322089869.5U Active CN220302119U (en) | 2023-08-04 | 2023-08-04 | Anti-drop device of wireless inclinometer while drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220302119U (en) |
-
2023
- 2023-08-04 CN CN202322089869.5U patent/CN220302119U/en active Active
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| GR01 | Patent grant |