CN112878991A - Detachable anti-abrasion belt structure of logging-while-drilling instrument - Google Patents
Detachable anti-abrasion belt structure of logging-while-drilling instrument Download PDFInfo
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- CN112878991A CN112878991A CN202110105132.0A CN202110105132A CN112878991A CN 112878991 A CN112878991 A CN 112878991A CN 202110105132 A CN202110105132 A CN 202110105132A CN 112878991 A CN112878991 A CN 112878991A
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- wear
- resistant belt
- shaped
- groove
- logging
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- 238000005553 drilling Methods 0.000 title claims abstract description 28
- 238000005299 abrasion Methods 0.000 title abstract description 26
- 210000002445 nipple Anatomy 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 abstract description 11
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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Abstract
The invention discloses a detachable wear-resistant belt structure of a logging-while-drilling instrument. The anti-abrasion belt structure is basically composed of an anti-abrasion belt main body and a fixed anti-falling structure. The maintenance performance of the wear-resistant belt of the instrument is improved. The invention adopts a modularized and serialized design structure, can be applied to different design positions of the drilling-while-drilling instrument and adapts to different working conditions. The problems of long maintenance period and high cost of the drill collar abrasion-proof belt of the while-drilling instrument are solved; the problem of field replacement and maintenance of the drill collar of the while-drilling instrument is solved; the problems of modular design, processing and maintenance of worn parts of the drilling-following instrument are solved.
Description
Technical Field
The invention belongs to the field of petroleum exploration, and particularly relates to a detachable wear-resistant belt structure of a logging-while-drilling instrument.
Background
In order to evaluate complex geological conditions, logging-while-drilling equipment is becoming an increasingly good tool for exploration and development under the market condition that horizontal wells are adopted to drill wells in oil fields on a large scale. Logging-while-drilling instruments are used in the well for a long time as part of the drill string. The logging-while-drilling instrument is required to bear loads such as torque, vibration, collision of a well wall, abrasion and the like underground. The underground rock stratum is sandstone, mudstone, dolomite, shale and the like, most of the stratum has higher hardness, and the abrasion to the drilling-following instrument is larger. How to better adapt to the working conditions of drilling. Reducing formation wear to the tool is one of the key points in the mechanical design of the while drilling tool.
Disclosure of Invention
The invention aims to overcome the defects, provides a detachable anti-abrasion belt structure of a logging-while-drilling instrument, and solves the problems of long maintenance period and high cost of the anti-abrasion belt of a drill collar of the logging-while-drilling instrument; the problem of field replacement and maintenance of the drill collar of the while-drilling instrument is solved; the problems of modular design, processing and maintenance of worn parts of the drilling-following instrument are solved.
In order to achieve the purpose, the anti-rotation slip comprises a threaded slip, wherein an annular anti-abrasion belt is arranged on the threaded slip, the threaded slip is fixed in a slip groove of a drill collar pup joint, a rotating groove is formed in the threaded slip, and an anti-rotation lug matched with the rotating groove is arranged on the slip groove.
The thread slip is provided with ACME threads, and the anti-abrasion belt is screwed on the ACME threads.
And a positioning shoulder used for limiting the wear-resistant belt is arranged on the threaded slip.
The drill collar pup joint is provided with an anti-drop ring groove, the annular anti-wear belt is provided with a threaded through hole, and the annular anti-wear belt penetrates through the threaded through hole through the anti-rotation pin and is inserted into the anti-drop ring groove for fixation.
The anti-rotation pin is sleeved with a first elastic snap ring, and the anti-disengagement pin 5 is provided with a threaded through hole for detaching the anti-rotation pin.
Annular abrasionproof area replacement is for fan-shaped abrasionproof area, and fan-shaped abrasionproof area is fixed at fan ring body, is provided with the anticreep clamp plate on the fan ring body, and fan ring body regulation is provided with first commentaries on classics boss on the fan ring body in the draw-in groove, is provided with in the draw-in groove and prevents changeing the recess with first commentaries on classics boss matched with.
Be provided with first fastening screw on the anticreep clamp plate, be provided with first screw hole in the draw-in groove, first fastening screw overcoat is equipped with second snap ring.
Annular abrasionproof area replacement is the strip abrasionproof area, and the strip abrasionproof area is fixed on strip abrasionproof takes the body, and the strip abrasionproof takes the body to be fixed in the bar recess, is provided with the second on the strip abrasionproof takes the body and prevents changeing the boss, is provided with in the bar recess and prevents changeing the boss matched with the second and prevent changeing the recess.
The anti-abrasion belt body is fixed in the strip-shaped groove through the anti-falling pressing block, a second threaded hole is formed in the strip-shaped groove, the anti-falling pressing block is provided with a through hole, and a second fastening screw penetrates through the through hole and is screwed into the second threaded hole.
An elastic collar is sleeved outside the second fastening screw.
Compared with the prior art, the anti-abrasion belt adopts a detachable structure design. The anti-abrasion belt structure is basically composed of an anti-abrasion belt main body and a fixed anti-falling structure. The maintenance performance of the wear-resistant belt of the instrument is improved. The invention adopts a modularized and serialized design structure, can be applied to different design positions of the drilling-while-drilling instrument and adapts to different working conditions. The problems of long maintenance period and high cost of the drill collar abrasion-proof belt of the while-drilling instrument are solved; the problem of field replacement and maintenance of the drill collar of the while-drilling instrument is solved; the problems of modular design, processing and maintenance of worn parts of the drilling-following instrument are solved.
Furthermore, the annular anti-wear belt adopts a replaceable threaded slip structure, and considering that the anti-wear belt is difficult to disassemble due to collision deformation of the underground anti-wear belt, a cutting avoidance groove is designed on the drill collar body and cut off by a handheld abrasive wheel cutting machine; the anti-drop ring groove is designed, and the anti-drop structure is formed by the anti-drop pin, the elastic snap ring and the like, so that the anti-drop structure is suitable for severe well conditions.
Furthermore, the sector ring-shaped and strip-shaped wear-resistant belt adopts a press block anti-falling structure, and transmits loads such as impact and the like borne by the wear-resistant belt to the drill collar body by utilizing an axial gap and an oppositely inserted lug and groove structure; the reliability of the anti-abrasion belt is improved; the elastic clamping ring and the screw fastening structure are adopted, so that the anti-abrasion belt is prevented from loosening.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic view of a threaded slip of the present invention;
FIG. 4 is a schematic view of the engagement between the slip and the anti-rotation boss;
FIG. 5 is a schematic view of an anti-disengaging structure of the annular detachable anti-wear belt of the present invention;
FIG. 6 is a schematic view of a sector annular detachable anti-wear belt structure according to the present invention;
FIG. 7 is a cross-sectional view of a sector annular removable wear band construction of the present invention;
fig. 8 is a schematic view of a strip-shaped detachable wear-resistant belt according to the present invention.
Wherein, include: 1-a drill collar nipple; 2-a threaded slip; 3-an annular anti-wear belt; 4-anti-drop ring groove; 5-anti-rotation pin; 6-elastic snap ring; 7-a threaded through hole; 8-ACME thread; 9-cutting an avoidance groove; 10-anti-rotation grooves; 11-a positioning shoulder; 12-anti-rotation lugs; 13-a slip groove; 14-a threaded slip groove; 15-a first threaded hole; 16-a first fastening screw; 17-a snap ring; 18-sector annular wear-resistant belt; 19-a first anti-rotation boss; 20-anti-rotation grooves; 21-anti-drop pressure plate; 22-fan ring-shaped defending body; 23-axial platen gap; 24-opening the slot; 25-a strip-shaped groove; 26-a second threaded hole; 27-anti-rotation grooves; 28-circumferential locating surface; 29-a second fastening screw; 30-an elastic collar; 31-anti-falling briquetting; 32-strip-shaped wear-resistant belt body; 33-a second anti-rotation boss; 34-strip shaped wear-resistant belt.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1, the drill collar comprises a threaded slip 2, wherein an annular anti-abrasion belt 3 is arranged on the threaded slip 2, the threaded slip 2 is fixed in a slip groove 13 of a drill collar nipple 1, a rotary groove 10 is arranged on the threaded slip 2, and an anti-rotation lug 12 matched with the rotary groove 10 is arranged on the slip groove 13. The invention can design an annular anti-abrasion belt, a sector annular anti-abrasion belt and a strip anti-abrasion belt according to different structural design requirements, and the annular anti-abrasion belt, the sector annular anti-abrasion belt and the strip anti-abrasion belt are arranged on the drill collar pup joint 1.
Referring to fig. 2, the threaded slip 2 is installed in a slip groove 13 of the drill collar sub 1, the annular anti-wear belt 3 is screwed on the ACME thread 8 of the threaded slip 2 and is screwed on a positioning shoulder 11 which is close to the threaded slip 2, and at the moment, the axial positioning of the annular anti-wear belt is realized.
Referring to fig. 3 and 4, the anti-rotation groove 10 of the threaded slip 2 is matched with an anti-rotation lug on the drill collar pup joint 1 to prevent the circumferential rotation of the anti-wear belt.
Referring to fig. 3, 4 and 5, the drill collar nipple 1 is provided with an anti-loosening ring groove 4, the annular anti-wear belt 3 is provided with a threaded through hole 7, and the annular anti-wear belt 3 penetrates through the threaded through hole 7 through the anti-rotation pin 5 and is inserted into the anti-loosening ring groove 4 for fixation. The anti-rotation pin 5 is sleeved with a first elastic snap ring 6, and the anti-disengagement pin 5 is provided with a threaded through hole 7 for detaching the anti-rotation pin 5. With the anti-rotation pin 5 with insert the circular inner bore of annular abrasionproof area 3 and cooperate with anticreep annular 4, the width of anticreep annular 4 is greater than the diameter of anti-rotation pin 5 slightly, the assembly of being convenient for, realizes loosening and taking off of anti-rotation pin 5 with snap ring 6, considers mud shutoff etc. after going into the well, design screw thread through-hole 7 on anti-rotation pin 5 is convenient for the dismantlement of anti-rotation pin 5.
Referring to fig. 6 and 7, the annular anti-wear belt 3 is replaced by a fan-shaped anti-wear belt 18, the fan-shaped anti-wear belt 18 is fixed on a fan-shaped annular body 22, an anti-drop pressure plate 21 is arranged on the fan-shaped annular body 22, the fan-shaped annular body 22 is specified in the clamping groove 14, a first anti-rotation boss 19 is arranged on the fan-shaped annular body 22, and an anti-rotation groove 20 matched with the first anti-rotation boss 19 is arranged in the clamping groove 14. The anti-falling pressing plate 21 is provided with a first fastening screw 16, the clamping groove 14 is internally provided with a first threaded hole 15, and a second elastic snap ring 17 is sleeved outside the first fastening screw 16. The sector anti-abrasion belt 18 is overlaid on the sector annular body 22 and installed in the clamping groove 14, the anti-rotation boss 19 is inserted into the anti-rotation groove 20 of the drill collar nipple, the sector annular body 22 is pressed by the anti-disengagement pressing plate 21, the anti-disengagement pressing plate 21 is fixed by the setscrew 16, and the second elastic clamping ring 17 is installed in the clamping groove of the anti-disengagement pressing plate 21. The axial pressure plate gap 23 transmits the collision load of the anti-abrasion belt to the drill collar nipple 1, the anti-drop pressure plate 21 is prevented from directly bearing the collision load, and the opening groove 24 is convenient for dismounting the sector annular anti-abrasion belt from the drill collar nipple 1.
Referring to fig. 8, the annular anti-wear belt 3 is replaced by a strip anti-wear belt 34, the strip anti-wear belt 34 is fixed on a strip anti-wear belt body 32, the strip anti-wear belt body 32 is fixed in the strip groove 25, a second anti-rotation boss 33 is arranged on the strip anti-wear belt body 32, and an anti-rotation groove 27 matched with the second anti-rotation boss 33 is arranged in the strip groove 25. The anti-wear belt body 32 is fixed in the strip-shaped groove 25 through the anti-falling pressing block 31, a second threaded hole 26 is formed in the strip-shaped groove 25, the anti-falling pressing block 31 is provided with a through hole, and the second fastening screw 29 penetrates through the through hole and is screwed into the second threaded hole 26. An elastic collar 30 is arranged around the second fastening screw 29. Install strip abrasionproof area body 32 in strip recess 25, insert the rotation-proof boss 33 of strip abrasionproof area 34 in the rotation-proof recess 27 of drill collar nipple 1, realize the circumference location with circumference locating surface 28, reuse anticreep briquetting 31 compresses tightly strip abrasionproof area 34, installs second fastening screw 29 into second screw hole 26 in, installs elasticity rand 30 into the anticreep briquetting, prevents that second fastening screw 29 from loosening.
Claims (10)
1. The utility model provides a logging while drilling appearance can dismantle abrasionproof band structure, its characterized in that includes screw thread slips (2), is provided with annular abrasionproof area (3) on screw thread slips (2), and screw thread slips (2) are fixed in slip groove (13) of drill collar nipple joint (1), are provided with on screw thread slips (2) rotatory recess (10), are provided with on slip groove (13) and prevent changeing lug (12) with rotatory recess (10) matched with.
2. The detachable wear-resistant belt structure of the logging-while-drilling tool as claimed in claim 1, wherein the thread slip (2) is provided with ACME threads (8), and the wear-resistant belt (3) is screwed on the ACME threads (8).
3. The detachable wear-resistant belt structure of the logging-while-drilling tool as claimed in claim 1, wherein the threaded slip (2) is provided with a positioning shoulder (11) for limiting the wear-resistant belt (3).
4. The detachable anti-wear belt structure of the logging-while-drilling tool as claimed in claim 1, wherein the collar sub (1) is provided with an anti-slip ring groove (4), the annular anti-wear belt (3) is provided with a threaded through hole (7), and the annular anti-wear belt (3) is inserted into the anti-slip ring groove (4) through the threaded through hole (7) by an anti-rotation pin (5) and fixed.
5. The detachable wear-resistant belt structure of the logging-while-drilling tool as claimed in claim 4, wherein the anti-rotation pin (5) is sleeved with a first elastic snap ring (6), and the anti-rotation pin (5) is provided with a threaded through hole (7) for detaching the anti-rotation pin (5).
6. The detachable wear-resistant belt structure of the logging-while-drilling tool is characterized in that the annular wear-resistant belt (3) is replaced by a fan-shaped wear-resistant belt (18), the fan-shaped wear-resistant belt (18) is fixed on a fan-shaped annular body (22), an anti-falling pressure plate (21) is arranged on the fan-shaped annular body (22), the fan-shaped annular body (22) is arranged in a clamping groove (14), a first anti-rotation boss (19) is arranged on the fan-shaped annular body (22), and an anti-rotation groove (20) matched with the first anti-rotation boss (19) is arranged in the clamping groove (14).
7. The detachable wear-resistant belt structure of the logging-while-drilling tool as claimed in claim 6, wherein the anti-drop pressure plate (21) is provided with a first fastening screw (16), the clamping groove (14) is provided with a first threaded hole (15), and the first fastening screw (16) is externally sleeved with a second elastic snap ring (17).
8. The detachable wear-resistant belt structure of the logging-while-drilling tool as claimed in claim 1, wherein the annular wear-resistant belt (3) is replaced by a strip-shaped wear-resistant belt (34), the strip-shaped wear-resistant belt (34) is fixed on a strip-shaped wear-resistant belt body (32), the strip-shaped wear-resistant belt body (32) is fixed in a strip-shaped groove (25), a second anti-rotation boss (33) is arranged on the strip-shaped wear-resistant belt body (32), and an anti-rotation groove (27) matched with the second anti-rotation boss (33) is arranged in the strip-shaped groove (25).
9. The detachable wear-resistant belt structure of the logging-while-drilling tool as claimed in claim 8, wherein the wear-resistant belt body (32) is fixed in the strip-shaped groove (25) through an anti-falling pressing block (31), a second threaded hole (26) is formed in the strip-shaped groove (25), the anti-falling pressing block (31) is provided with a through hole, and a second fastening screw (29) passes through the through hole and is screwed into the second threaded hole (26).
10. The detachable wear-resistant belt structure of the logging-while-drilling tool as recited in claim 9, wherein the second fastening screw (29) is externally sleeved with an elastic collar (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110105132.0A CN112878991A (en) | 2021-01-26 | 2021-01-26 | Detachable anti-abrasion belt structure of logging-while-drilling instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110105132.0A CN112878991A (en) | 2021-01-26 | 2021-01-26 | Detachable anti-abrasion belt structure of logging-while-drilling instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112878991A true CN112878991A (en) | 2021-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110105132.0A Pending CN112878991A (en) | 2021-01-26 | 2021-01-26 | Detachable anti-abrasion belt structure of logging-while-drilling instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112878991A (en) |
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Application publication date: 20210601 |
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