CN104963639A - Downhole torque control tool for milling operation - Google Patents
Downhole torque control tool for milling operation Download PDFInfo
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- CN104963639A CN104963639A CN201510332094.7A CN201510332094A CN104963639A CN 104963639 A CN104963639 A CN 104963639A CN 201510332094 A CN201510332094 A CN 201510332094A CN 104963639 A CN104963639 A CN 104963639A
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Abstract
The invention provides a downhole torque control tool for milling operation. The downhole torque control tool for the milling operation comprises a body which is a tubular body provided with through holes in the circumferential direction, each through hole is provided with a torque anchor palm which is in clearance fit with the through hole, the torque anchor palms are perpendicular to the axial direction of the body, the anchoring end of each torque anchor palm is provided with anchor teeth and a counter bore which are parallel to the axial direction of the body, a stretchable spring is arranged in each counter bore, a pressing plate is arranged at the lower ends of the stretchable springs, and the pressing plate is fixedly connected with the body; the end size of the other end of each torque anchor palm is larger than the inner diameter of the top of the corresponding through hole. According to the downhole torque control tool for the milling operation, drill pressure fluctuation brought by deformation of an operation tubular column in a shaft due to the fact that the operation tubular column bears inverted torque is effectively avoided, on the premise of not affecting the axial movement of the operation tubular column, the safety risks brought by tubular column tripping and reverse twisting of the tubular column on the shaft head are decreased, power torque output by a screw motor is stably controlled on a front section milling tool, the drilling grinding stability is improved, and the milling efficiency is improved.
Description
Technical field
The present invention 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.
Summary of the invention
The object of this invention 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.
Technical scheme provided by the invention:
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 invention has the beneficial effects as follows:
1, milling operation down-hole provided by the invention torque control tool, 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 present invention, 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 invention;
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, present invention effectively prevents 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 invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
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 |
|---|---|---|---|
| CN201510332094.7A CN104963639A (en) | 2015-06-16 | 2015-06-16 | Downhole torque control tool for milling operation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510332094.7A CN104963639A (en) | 2015-06-16 | 2015-06-16 | Downhole torque control tool for milling operation |
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|---|---|
| CN104963639A true CN104963639A (en) | 2015-10-07 |
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| CN201510332094.7A Pending CN104963639A (en) | 2015-06-16 | 2015-06-16 | Downhole torque control tool for milling operation |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869844A (en) * | 2017-03-21 | 2017-06-20 | 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 | A kind of bridging plug bores mill anti-anti-twisted device and reaction torque monitoring system |
| CN108316877A (en) * | 2017-12-29 | 2018-07-24 | 中石化石油工程技术服务有限公司 | Equal hole diameters expansion sleeve hydraulic variable diameter milling tool |
| CN111206896A (en) * | 2020-03-06 | 2020-05-29 | 西华大学 | Anchoring tool for mechanical hydraulic double-acting slope guiding device |
| CN113266294A (en) * | 2021-07-06 | 2021-08-17 | 新疆华油油气工程有限公司 | Diameter-reducible anti-blocking milling cone and use method thereof |
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| US3131769A (en) * | 1962-04-09 | 1964-05-05 | Baker Oil Tools Inc | Hydraulic anchors for tubular strings |
| WO2004109052A3 (en) * | 2003-05-30 | 2005-08-25 | Strataloc Technology Products | Drilling string torsional energy control assembly and method |
| CN201228531Y (en) * | 2008-07-23 | 2009-04-29 | 孔宪春 | Hydraulic anchoring type reversing tool |
| CN202249868U (en) * | 2011-09-29 | 2012-05-30 | 中国石油化工股份有限公司 | Pressing type sleeve reversing device |
| CN202273621U (en) * | 2011-10-12 | 2012-06-13 | 大连华科机械有限公司 | Rotary type oil pipe anchor |
| CN202913972U (en) * | 2012-10-31 | 2013-05-01 | 中国石油集团川庆钻探工程有限公司 | Weight control torque selective transmission mechanism |
| CN103670314A (en) * | 2012-09-19 | 2014-03-26 | 盐城市森鑫石油机械有限公司 | Sand prevention hydraulic anchor |
| CN203702046U (en) * | 2014-02-26 | 2014-07-09 | 历新 | Dovetail type sand prevention hydraulic anchor |
| CN204782877U (en) * | 2015-06-16 | 2015-11-18 | 中国石油天然气股份有限公司 | Milling operation is torque control instrument in pit |
-
2015
- 2015-06-16 CN CN201510332094.7A patent/CN104963639A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3131769A (en) * | 1962-04-09 | 1964-05-05 | Baker Oil Tools Inc | Hydraulic anchors for tubular strings |
| WO2004109052A3 (en) * | 2003-05-30 | 2005-08-25 | Strataloc Technology Products | Drilling string torsional energy control assembly and method |
| CN201228531Y (en) * | 2008-07-23 | 2009-04-29 | 孔宪春 | Hydraulic anchoring type reversing tool |
| CN202249868U (en) * | 2011-09-29 | 2012-05-30 | 中国石油化工股份有限公司 | Pressing type sleeve reversing device |
| CN202273621U (en) * | 2011-10-12 | 2012-06-13 | 大连华科机械有限公司 | Rotary type oil pipe anchor |
| CN103670314A (en) * | 2012-09-19 | 2014-03-26 | 盐城市森鑫石油机械有限公司 | Sand prevention hydraulic anchor |
| CN202913972U (en) * | 2012-10-31 | 2013-05-01 | 中国石油集团川庆钻探工程有限公司 | Weight control torque selective transmission mechanism |
| CN203702046U (en) * | 2014-02-26 | 2014-07-09 | 历新 | Dovetail type sand prevention hydraulic anchor |
| CN204782877U (en) * | 2015-06-16 | 2015-11-18 | 中国石油天然气股份有限公司 | Milling operation is torque control instrument in pit |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869844A (en) * | 2017-03-21 | 2017-06-20 | 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 | A kind of bridging plug bores mill anti-anti-twisted device and reaction torque monitoring system |
| CN108316877A (en) * | 2017-12-29 | 2018-07-24 | 中石化石油工程技术服务有限公司 | Equal hole diameters expansion sleeve hydraulic variable diameter milling tool |
| CN111206896A (en) * | 2020-03-06 | 2020-05-29 | 西华大学 | Anchoring tool for mechanical hydraulic double-acting slope guiding device |
| CN111206896B (en) * | 2020-03-06 | 2021-07-23 | 西华大学 | Anchoring tool for mechanical hydraulic double-acting slope guiding device |
| CN113266294A (en) * | 2021-07-06 | 2021-08-17 | 新疆华油油气工程有限公司 | Diameter-reducible anti-blocking milling cone and use method thereof |
| CN113266294B (en) * | 2021-07-06 | 2023-02-17 | 新疆华油油气工程有限公司 | Diameter-reducible anti-sticking milling cone and use method thereof |
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Application publication date: 20151007 |