CN204782877U - Underground torque control tool for milling operation - Google Patents
Underground torque control tool for milling operation Download PDFInfo
- Publication number
- CN204782877U CN204782877U CN201520413931.4U CN201520413931U CN204782877U CN 204782877 U CN204782877 U CN 204782877U CN 201520413931 U CN201520413931 U CN 201520413931U CN 204782877 U CN204782877 U CN 204782877U
- Authority
- CN
- China
- Prior art keywords
- hole
- moment
- torsion
- anchor fluke
- milling operation
- 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.)
- Expired - Fee Related
Links
- 238000003801 milling Methods 0.000 title claims abstract description 35
- 241000935974 Paralichthys dentatus Species 0.000 claims abstract description 45
- 238000007789 sealing Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 14
- 238000004873 anchoring Methods 0.000 abstract 1
- 210000000078 claw Anatomy 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000005553 drilling Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 238000005381 potential energy Methods 0.000 description 4
- 241000242541 Trematoda Species 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model provides a milling operation is moment of torsion control instrument in pit, which comprises a body, the body is the tubulose body that the circumference was equipped with the through-hole, be equipped with the moment of torsion fluke with through-hole clearance fit in the through-hole, the moment of torsion fluke is perpendicular with the body axial, moment of torsion fluke anchoring end is equipped with the anchor tooth and the counter bore parallel with the body axial, be equipped with expanding spring in the counter bore, the expanding spring lower extreme is equipped with the clamp plate, clamp plate and body fixed connection; the size of the end part of the other end of the torque anchor claw is larger than the inner diameter of the top of the through hole. The utility model discloses effectively avoided in the pit shaft operation tubular column to take place the drilling pressure fluctuation that deformation brought because of bearing the reaction torque, under the prerequisite that does not influence operation tubular column axial displacement, reduced the tubular column dropout and the anti-safe risk of turning round and bringing of well head tubular column, control the power moment of torsion of screw motor output on the milling instrument of anterior segment steadily, improve and bore and grind stability, improvement by a wide margin and mill efficiency.
Description
Technical field
The utility model is specifically related to a kind of milling operation down-hole torque control tool, is specially adapted to horizontal well milling operation, can realize down-hole and control reaction torque, eliminates in tubing string well and threads off and wellhead column reversion.
Background technology
Conventional milling operation, when down-hole string produces less reaction torque, eliminate reaction torque mainly through the metal friction power between tubing string itself and internal surface of sleeve pipe, tubing string dropout risk is less; When down-hole string produces larger reaction torque, tubing string reverses in pit shaft, and simultaneously well head top is exposed tubing string and also reversed, and controls, elimination reaction torque mainly through well head reaction torque control device.
But it is higher to there is easy well head reaction torque control device risk; Reliable well head reaction torque control device is more complicated, and shaft mouth operation difficulty is larger; Reaction torque can not slow releasing time, have the risk that tubing string is threaded off; Well head controls reaction torque, and moment of torsion efficiency when tubing string is passed to milling tool is comparatively large because of the longer loss of tubing string, affects milling efficiency.At present, temporarily not for the downhole tool that reaction torque controls.
Utility model content
The purpose of this utility model is to provide a kind of milling operation down-hole torque control tool, the reaction torque produced in effective carrying down-hole screw motor milling operation process, dynamic torque is stably controlled at milling tool place, tubing string front end, eliminate tubing string dropout risk, improve milling efficiency.
The technical scheme that the utility model provides:
A kind of milling operation down-hole torque control tool, comprise body, described body is the tubular body being circumferentially with through hole, the moment of torsion anchor fluke coordinated with via clearance is provided with in described through hole, described moment of torsion anchor fluke and body shaft are to vertical, and described torque anchor fluke anchor fixed end to be provided with body shaft to parallel anchor tooth and counterbore, is provided with coil tension spring in described counterbore, described coil tension spring lower end is provided with pressing plate, and described pressing plate is fixedly connected with body;
The end size of the described moment of torsion anchor fluke other end is greater than via top internal diameter.
Described through hole is the truncated cone-shaped through hole with necking down step, and described truncated cone-shaped through hole is less than the other end near body central one end internal diameter;
Described moment of torsion anchor fluke is cylindrical, and described torque anchor fluke anchor fixed end radius is greater than truncated cone-shaped through hole near body central one end internal diameter, and is not more than the other end internal diameter of truncated cone-shaped through hole.
Described through hole is along body circumference Spiral distribution in 90 °.
Between described through hole and moment of torsion anchor fluke, axle is circumferentially with seal groove, is sealed by sealing ring.
Described pressing plate is connected by trip bolt with body.
The beneficial effects of the utility model are:
1, the milling operation down-hole torque control tool that provides of the utility model, effectively prevent the Fluctuation of weight on bit that in pit shaft, working string brings because bearing reaction torque generation deformation, the dynamic torque that screw motor exports stably is controlled on the milling tool of leading portion, can significantly improve milling efficiency.
2, working string circumference is anchored on internal surface of sleeve pipe by moment of torsion anchor fluke by the utility model, while mill stability is bored in raising, and do not affect under working string moves axially the prerequisite of (above put and put), also reduce tubing string and thread off and the anti-twisted security risk brought of wellhead column.
Be described in further details below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that A-A is to sectional view;
Fig. 3 is moment of torsion anchor fluke structural representation.
In figure: 1, body; 2, moment of torsion anchor fluke; 3, pressing plate; 4, coil tension spring; 5, sealing ring; 6, trip bolt; 7, through hole; 8, anchor tooth; 9, counterbore.
Detailed description of the invention
Embodiment 1:
Present embodiments provide a kind of milling operation down-hole torque control tool, comprise body 1, described body 1 is for being circumferentially with the tubular body of through hole 7, the moment of torsion anchor fluke 2 with through hole 7 matched in clearance is provided with in described through hole 7, described moment of torsion anchor fluke 2 is axially vertical with body 1, and described moment of torsion anchor fluke 2 anchored end is provided with the anchor tooth 8 axially parallel with body 1 and counterbore 9, is provided with coil tension spring 4 in described counterbore 9, described coil tension spring 4 lower end is provided with pressing plate 3, and described pressing plate 3 is fixedly connected with body 1;
The end size of described moment of torsion anchor fluke 2 other end is greater than through hole 7 top internal diameter.
The milling operation down-hole torque control tool specific works process that the present embodiment provides is as follows:
Milling operation down-hole torque control tool is connected between screw motor and operation tubing by gas thread, coordinate the milling operation of screw motor down-hole, when power fluid flows through torque control tool inside, down-hole generation inside and outside differential pressure, extrusion torque anchor fluke 2 is along through hole 7 axis of body 1 to body 1 slide outside, until the anchor tooth 8 of moment of torsion anchor fluke 2 is engaged with internal surface of sleeve pipe, carry circumferential moment of torsion, namely anchored end is engaged with internal surface of sleeve pipe, carry circumferential moment of torsion, pressing plate 3 pairs of moment of torsion anchor flukes 2 carry out spacing in the process, prevent moment of torsion anchor fluke 2 from departing from body 1, simultaneous retractable spring 4 puts aside elastic potential energy by compression.
When torque control tool moves down along with working string, because the anchor tooth 8 of moment of torsion anchor fluke 2 is axially parallel with body 1, only can produces the frictional force with internal surface of sleeve pipe, not there is anchorage force, thus can free releasing.After milling operation terminates, stop infusion power fluid, instrument inside and outside differential pressure is eliminated, coil tension spring 4 discharges elastic potential energy, driving torque anchor fluke 2 is along through hole 7 axis of body 1 to body 1 internal slide, until moment of torsion anchor fluke 2 is retracted to body 1, the end size because of the other end of the non-anchor fixed end of moment of torsion anchor fluke 2 is greater than through hole 7 top internal diameter, thus in this process, moment of torsion anchor fluke 2 is undertaken spacing by through hole 7 top, finally completes milling operation.
Embodiment 2:
On the basis of embodiment 1, present embodiments provide a kind of milling operation down-hole torque control tool as shown in Figure 1, wherein, through hole 7 is for having the truncated cone-shaped through hole of necking down step, and truncated cone-shaped through hole is less than the other end near one end, body 1 center internal diameter;
As shown in Figure 2 and Figure 3, moment of torsion anchor fluke 2 is cylindrical, moment of torsion anchor fluke 2 anchored end radius is greater than truncated cone-shaped through hole near one end, body 1 center internal diameter, and be not more than the other end internal diameter of truncated cone-shaped through hole, namely moment of torsion anchor fluke 2 two ends are cambered surface, and anchored end center has puts the counterbore 9 of coil tension spring 4 and the horizontal anchor tooth along body 1 axis direction.
In the present embodiment, body 1 is the hollow tubular body that circumference has truncated cone-shaped through hole, its truncated cone-shaped through hole two one group, four groups of spirals in 90 ° are uniformly distributed on body 1, moment of torsion anchor fluke 2 is column structure, eight moment of torsion anchor flukes 2 coordinate with body 1 truncated cone-shaped via clearance one by one, be limited on the undergauge step of body 1 truncated cone-shaped through hole, the countershaft of through hole 7 and moment of torsion anchor fluke 2 is circumferentially with seal groove, sealed by sealing ring 5, coil tension spring 4 is placed in the counterbore 9 of moment of torsion anchor fluke 2, covered by pressing plate 3 and compress into row pretension and fix, pressing plate 3 is fixed on body 1 with being threaded of body 1 by trip bolt 6.
Milling operation down-hole torque control tool is connected between screw motor and operation tubing by gas thread, as being connected to 2
7/
8" oil pipe, under enter 5
1/
2" in sleeve pipe; coordinate the milling operation of screw motor down-hole; when power fluid flows through torque control tool inside, down-hole generation inside and outside differential pressure; extrusion torque anchor fluke 2 is along body 1 truncated cone-shaped through-bore axis to body 1 slide outside; until the anchor tooth 8 of moment of torsion anchor fluke 2 is engaged with internal surface of sleeve pipe, carries circumferential moment of torsion; this process center platen 3 pairs of moment of torsion anchor flukes 2 carry out spacing, and prevent moment of torsion anchor fluke 2 from departing from body 1, simultaneous retractable spring 4 puts aside elastic potential energy by compression.When torque control tool moves down along with working string, because the anchor tooth 8 of moment of torsion anchor fluke 2 is axially parallel with body 1, only can produces the frictional force with internal surface of sleeve pipe, not there is anchorage force, thus can free releasing.After milling operation terminates, stop infusion power fluid, instrument inside and outside differential pressure is eliminated, coil tension spring 4 discharges elastic potential energy, driving torque anchor fluke 2 is along body 1 truncated cone-shaped through-bore axis to body 1 internal slide, until moment of torsion anchor fluke 2 is retracted to body 1, in this process, moment of torsion anchor fluke 2 is undertaken spacing by truncated cone-shaped through hole undergauge step, finally completes milling operation.
In sum, the utility model effectively prevent the Fluctuation of weight on bit that in pit shaft, working string brings because bearing reaction torque generation deformation, do not affecting under the prerequisite that working string moves axially, reduce tubing string to thread off and the anti-twisted security risk brought of wellhead column, the dynamic torque that screw motor exports stably is controlled on the milling tool of leading portion, improve and bore mill stability, significantly improve milling efficiency.
The present embodiment does not have specifically described part all to belong to common practise and the known technology of the art, describes in detail no longer one by one herein.
More than exemplifying is only illustrate of the present utility model, does not form the restriction to protection domain of the present utility model, everyly all belongs within protection domain of the present utility model with the same or analogous design of the utility model.
Claims (5)
1. a milling operation down-hole torque control tool, it is characterized in that: comprise body (1), described body (1) is for being circumferentially with the tubular body of through hole (7), the moment of torsion anchor fluke (2) with through hole (7) matched in clearance is provided with in described through hole (7), described moment of torsion anchor fluke (2) is axially vertical with body (1), described moment of torsion anchor fluke (2) anchored end is provided with the anchor tooth (8) axially parallel with body (1) and counterbore (9), coil tension spring (4) is provided with in described counterbore (9), described coil tension spring (4) lower end is provided with pressing plate (3), described pressing plate (3) is fixedly connected with body (1),
The end size of described moment of torsion anchor fluke (2) other end is greater than through hole (7) top internal diameter.
2. a kind of milling operation down-hole according to claim 1 torque control tool, is characterized in that: described through hole (7) is for having the truncated cone-shaped through hole of necking down step, and described truncated cone-shaped through hole is less than the other end near body (1) one end, center internal diameter;
Described moment of torsion anchor fluke (2) is for cylindrical, and described moment of torsion anchor fluke (2) anchored end radius is greater than truncated cone-shaped through hole near body (1) one end, center internal diameter, and is not more than the other end internal diameter of truncated cone-shaped through hole.
3. a kind of milling operation down-hole according to claim 1 torque control tool, is characterized in that: described through hole (7) is along the circumferential Spiral distribution in 90 ° of body (1).
4. a kind of milling operation down-hole according to claim 1 torque control tool, be is characterized in that: the countershaft of described through hole (7) and moment of torsion anchor fluke (2) is circumferentially with seal groove, is sealed by sealing ring (5).
5. a kind of milling operation down-hole according to claim 1 torque control tool, is characterized in that: described pressing plate (3) is connected by trip bolt (6) with body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520413931.4U CN204782877U (en) | 2015-06-16 | 2015-06-16 | Underground torque control tool for milling operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520413931.4U CN204782877U (en) | 2015-06-16 | 2015-06-16 | Underground torque control tool for milling operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204782877U true CN204782877U (en) | 2015-11-18 |
Family
ID=54522945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520413931.4U Expired - Fee Related CN204782877U (en) | 2015-06-16 | 2015-06-16 | Underground torque control tool for milling operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204782877U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963639A (en) * | 2015-06-16 | 2015-10-07 | 中国石油天然气股份有限公司 | Underground torque control tool for milling operation |
| CN110965951A (en) * | 2019-11-27 | 2020-04-07 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Large-drift-diameter hydraulic anchor and using method thereof |
-
2015
- 2015-06-16 CN CN201520413931.4U patent/CN204782877U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963639A (en) * | 2015-06-16 | 2015-10-07 | 中国石油天然气股份有限公司 | Underground torque control tool for milling operation |
| CN110965951A (en) * | 2019-11-27 | 2020-04-07 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Large-drift-diameter hydraulic anchor and using method thereof |
| CN110965951B (en) * | 2019-11-27 | 2024-01-23 | 中国石油天然气集团有限公司 | Large-drift-diameter hydraulic anchor and use method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 |