CN205243464U - Two release sliding sleeve formula slip sockets - Google Patents
Two release sliding sleeve formula slip sockets Download PDFInfo
- Publication number
- CN205243464U CN205243464U CN201521092414.8U CN201521092414U CN205243464U CN 205243464 U CN205243464 U CN 205243464U CN 201521092414 U CN201521092414 U CN 201521092414U CN 205243464 U CN205243464 U CN 205243464U
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- sliding sleeve
- slips
- pin
- fish
- cylindrical shell
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Abstract
(B, ) the utility model discloses a two release sliding sleeve formula slip sockets is including mandrel (8), be equipped with throttle nozzle (7) in the bottom outlet of mandrel, mandrel bottom cover has sliding sleeve (5), the internal thread of sliding sleeve bottom outlet and the thread connection of mandrel bottom, the external screw thread of sliding sleeve bottom and the female connection of slips (6) top mouth, the sliding sleeve overcoat has barrel (9), and the barrel bottom is equipped with milling head (20), the internal thread of barrel top mouth and the thread connection of top connection (1), the cover has spring (2) on the mandrel between sliding sleeve and the top connection, is equipped with bearing (3) between spring bottom and the sliding sleeve, the outer disc of sliding sleeve is equipped with spout (10), is equipped with pin (4) on the barrel, and pin one end lies in the spout. The utility model discloses a barrel tensile strength is high. Can be used to the fishing operation of big displacement well, horizontal well and straight well, it is wide to salvage application range, the well head operation of being convenient for. Can overlap milling to the line of dropping into of burying, realize cover milling and salvage and once only accomplish. (B, )
Description
Technical field
The utility model relates to a kind of two sleeve type slip socket that discharges, and belongs to drilling well fishing tool technical field.
Background technology
Conventional fishing socket is mainly used in straight well operation, almost cannot carry out fishing in extended reach well and horizontal well; In the time that the fish crown of fish portion is buried by junk or sand setting, conventional fishing socket can not overlap milling fish head, cannot carry out fishing; And it is more difficult to discharge fish, blocked and cannot be taken out when salvaging fish when fish, at this moment need to discharge fish, but conventional fishing socket carries out moment of torsion rotation after needing to hit power or large-tonnage pressure under certain, operates more loaded down with trivial details.
Utility model content
The purpose of this utility model is, a kind of two sleeve type slip socket that discharges is provided, and not only can be used for straight well and salvages, also can be used for the fishing of extended reach well and horizontal well, realize cover milling and salvage disposable completing, improve fishing efficiency, thereby overcome the deficiencies in the prior art.
The technical solution of the utility model is achieved in that
The two release of one of the present utility model sleeve type slip socket is to comprise axle; In the bottom outlet of axle, be provided with throttle nozzle; Bottom axle, cover has sliding sleeve, and the internal thread of sliding sleeve bottom outlet is connected with the external screw thread of axle bottom, and the external screw thread of sliding sleeve bottom is connected with the internal thread of slips top mouth; Sliding sleeve overcoat has cylindrical shell, and cylinder body bottom is provided with milling head; The internal thread of cylindrical shell top mouth is connected with the external screw thread of top connection; In axle between sliding sleeve and top connection, cover has spring, between spring bottom and sliding sleeve, is provided with bearing; The periphery of sliding sleeve is provided with chute, and cylindrical shell is provided with pin, and pin one end is positioned at chute.
In aforementioned slip socket, described chute comprises two elongated slots and two the short grooves that are uniformly distributed along the circumference, and between elongated slot and short groove one group of stopper slot of opposite direction, between elongated slot, stopper slot and short groove, connect through wave channel.
In aforementioned slip socket, described slips bottom cylindrical is the conical surface, and slips bottom is uniformly distributed with one group of retraction slot along the circumference, is provided with salvaging pawl in slips bottom outlet.
Owing to having adopted technique scheme, the utility model compared with prior art, does not have king bolt cone structure on cylindrical shell of the present utility model and slips, improved greatly the tensile strength of cylindrical shell. The utility model can be used for the fishing of extended reach well, horizontal well and straight well, and the salvaging scope of application is wide, is convenient to well head operation. The utility model is simple in structure, easy to process, and has cover milling function, can overlap milling operation to the top of fish of burying fish head, realizes cover milling and salvages disposable completing.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the expansion schematic diagram of chute shape;
Fig. 3 is the structural representation of throttle nozzle;
Fig. 4 is the structural representation of slips
Fig. 5 is the schematic diagram of the basket slips of a kind of existing salvaging wound packages;
Fig. 6 is a kind of schematic diagram of existing salvaging wound packages spiral slips.
Being labeled as in figure: top connection 1, spring 2, bearing 3, pin 4, sliding sleeve 5, slips 6, throttle nozzle 7, axle 8, cylindrical shell 9, chute 10, elongated slot 11, short groove 12, stopper slot 13, wave channel 14, ramp 15, lower inclined plane 16, salvaging pawl 17, retraction slot 18, male cone (strobilus masculinus) 19, milling head 20, guide shoe 21, control card 22, the cylindrical shell 23 of prior art, spiral slips 24, A shape packing 25, basket slips 26, milling shoe body 27.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail, but not as to any restriction of the present utility model.
The two sleeve type slip sockets that discharge of one of the present utility model, as Figure 1-4, comprise axle 8; In the bottom outlet of axle 8, be provided with throttle nozzle 7; Axle 8 bottom covers have sliding sleeve 5, and the internal thread of sliding sleeve 5 bottom outlets is connected with the external screw thread of axle 8 bottoms, and the external screw thread of sliding sleeve 5 bottoms is connected with the internal thread of slips 6 top mouths; Sliding sleeve 5 overcoats have cylindrical shell 9, and cylindrical shell 9 bottoms are provided with milling head 20; The internal thread of cylindrical shell 9 top mouths is connected with the external screw thread of top connection 1; In axle 8 between sliding sleeve 5 and top connection 1, cover has spring 2, between spring 2 bottoms and sliding sleeve 5, is provided with bearing 3; The periphery of sliding sleeve 5 is provided with chute 10, and cylindrical shell 9 is provided with pin 4, and pin 4 one end are positioned at chute 10. Chute 10 comprises two elongated slots 11 and two the short grooves 12 that are uniformly distributed along the circumference, and between elongated slot 11 and short groove 12 one group of stopper slot 13 of opposite direction, between elongated slot 11, stopper slot 13 and short groove 12, connect through wave channel 14. Slips 6 bottom cylindricals are the conical surface 19, and slips 6 bottoms are uniformly distributed with one group of retraction slot 18 along the circumference, be provided with and salvage pawl 17 in slips 6 bottom outlets.
Adopt the utility model to salvage the method for fish, as Figure 1-4, the method close by startup slush pump number of times control slips open the clamping and the release that complete fish with contractive action; Or the open clamping and the release that complete fish with contractive action of number of times control slips by promoting and transfer fishing socket realize the fishing of down-hole fish; Promote and transfer number of times and startup is closed the number of times of slush pump by chute and the position record of pin in chute of sliding sleeve periphery, sliding sleeve has often rotated a circle two and has clamped and dispose procedure; And can overlap milling operation to the top of fish of burying fish head by the milling head of barrel front end, realize cover milling and salvage disposable completing.
Fishing socket original state is under the effect of spring, and pin 4 is positioned at elongated slot 11 tops, and the male cone (strobilus masculinus) 19 of slips bottom is fitted slips in wedging state with the inner conical surface of cylindrical shell 9 bottoms. Clamping and the dispose procedure of closing the number of times control fish of slush pump by startup are: fishing socket starts slush pump after entering well for the first time, overcome at the pressure-acting of mud on the active force slide block 5 of spring 2 and move, make pin 4 slide into stopper slot 13 tops, slips 6 is opened completely; Close afterwards slush pump, move down at the effect sliding block 5 of spring 2, make pin 4 slide into short groove 13 tops, slips 6 stays open state; Continue to transfer fishing socket, when the top of fish enters after slips 6, start for the second time slush pump and close again slush pump afterwards, make slips 6 hold fish tightly, above carry fishing socket fish up; Discharging the process of fish is, restarts and closes slush pump once, and slips 6 opens and discharges fish; Twice switch slush pump is a working cycles, realizes fish and salvages and dispose procedure.
Clamping and the dispose procedure of controlling fish by fishing socket contained spring 2 are: transfer fishing socket, after entering slips 6, the fish head of fish continues to transfer fishing socket, under the effect of fishing socket deadweight, sliding sleeve 5 is overcome on the active force of spring 2 to be moved, and slips 6 is opened, carry fishing socket on then, because fishing socket deadweight disappears, sliding sleeve 5 moves down under spring action, makes the male cone (strobilus masculinus) 19 of slips bottom and the inner conical surface laminating slips of cylindrical shell 9 bottoms clamp fish; On carry fishing socket fish up; Discharging the process of fish is, more once transfer and on carry fishing socket process the fish of holding tightly can be discharged. Sliding sleeve 5 move down or on move past in journey, drive sliding sleeve rotation 45 degree by the lower inclined plane 16 on wave channel in chute or ramp 15, the every rotating 360 degrees of sliding sleeve 5 completes two clampings and release cycle.
Embodiment
Fig. 2 is the expanded view of sliding sleeve 5 external cylindrical surface chutes 10, sliding sleeve 5 Surface Machining have chute 10, pin 4 is threaded connection and is fixed on cylindrical shell 9, pin 4 bottoms are processed with smooth light face, can be in the interior slip of the chute of sliding sleeve 5 10, when interactive slip, sliding sleeve 5 also rotates simultaneously, and sliding sleeve 5 is connected with slips 6, is connected with axle 8 by internal thread by external screw thread, pin 4 has three kinds of settling positions with respect to the chute 10 of sliding sleeve 5
The first, pin 4 with respect to the elongated slot 11 of sliding sleeve 5 in topmost, now spring 2 is in minimal compression, spring promotes sliding sleeve 5 and sliding sleeve drives slips 6 descending, block relative laminating the in inclined-plane of 6 watts of front end male cone (strobilus masculinus)s 19 and cylindrical shell 9 front end inner surfaces, slips 6 is in wedging state, slips 6 slides and draws tighter and tighter at pulling force effect lower inclined plane after at this moment blocking fish, can salvage fish.
Stopper slot 13 ends of the second, pin 4 places and sliding sleeve 5 chutes, now sliding sleeve 5 pushes up on top connection 1 end face, and spring 2 is in most compressed state, and slips 6 is in opening.
The third, the end of the short groove 12 of pin 4 places and sliding sleeve 5, it is descending that pin 4 retrains sliding sleeve 5, spring 2 is in half compressive state, slips 6 keeps opening in discharging fish state.
When pin 4 during at the first and the second state pin 4 be not subject to shearing force, chute two end surfaces of pin 4 and sliding sleeve 5 not exclusively contact, when short groove 12 ends of the third pin 4 places and sliding sleeve 5, pin 4 is only subject to the pressure of spring. Bearing 3, between spring 2 and sliding sleeve 5, has reduced the frictional force to spring 2 end faces in the time that sliding sleeve 5 rotates, and sliding sleeve 5 is rotated very flexible. Throttle nozzle 7 has throttling action to mud, produces certain Pressure Drop, and center roller 8 has propulsive thrust effect and then drives moving up and down of slips, reaches the object of salvaging and discharging fish.
The course of work of the present utility model and principle
Operation principle: sliding sleeve fishing socket has two kinds of working forms, one is salvage and discharge fish by hydraulic pressure, and another kind is salvage and discharge fish by mechanical tension and compression, and two kinds of methods are simple to operate, easy to use, and salvaging reliability is high.
Hydraulic pressure is salvaged principle: it is that pin 4 is in above-mentioned the first position as last that sliding sleeve fishing socket enters well, pin 4 is with respect to elongated slot 11 topmosts of sliding sleeve 5, the relative laminating in inclined-plane of slips 6 front end male cone (strobilus masculinus)s 19 and cylindrical shell 9 front end inner surfaces, slips 6 is in wedging state, after entering well, open slush pump circulating mud, when slurry flows has throttling action to mud during through throttle nozzle 7, high-velocity fluid slurry flows produces certain propulsive thrust in the time of throttle nozzle 7, under propulsive thrust effect, drive axle 8 upwards, and then the upper movement of drive slips 6, after slips 6 is up, reach above-mentioned pin 4 the second positions, after stopping slush pump, reaction force is eliminated, under spring 2 active forces, pin 4 slides in short groove 12 with the chute of sliding sleeve 5, transferring drilling tool makes sliding sleeve fishing socket arrive wish salvaging position, a fish top of fish enters the slips 6 of fishing socket, turn on pump circulation and termination of pumping again, make slips 6 again up rear descending, at this moment slips 6 internal tooths are embraced fish, the outer inclined-plane of slips 6 front ends and the slip wedging of the interior inclined-plane of cylindrical shell 9, on carry sliding sleeve fishing socket fish up. if need to discharge fish, carry out so termination of pumping after turn on pump, slips 6 is up to middle part, and to pin 4, in the 3rd above-mentioned operating position, slips 6 opens and discharges fish. twice switch slush pump is a working cycles, realizes fish and salvages and dispose procedure. hydraulic pressure is salvaged can carry out operation in level, more easy and simple to handle than traditional LT-T fishing socket, better realizes fish and salvages release function.
Machinery is salvaged principle: sliding sleeve fishing socket enters before well, pin 4 is with respect to the topmost of the chute of sliding sleeve 5, the relative laminating in inclined-plane of slips 6 front end outer surface inclined-planes and cylindrical shell 9 front end inner surfaces, slips 6 is in wedging state, transfer drilling tool, fish head enters after sliding sleeve is beaten cylindrical shell and continues to transfer, top of fish is pressed in Compress Spring 2 after 8 axle front end faces, pin 4 is for the chute relative sliding of sliding sleeve 5, if carry sliding sleeve fishing socket on when pin 4 does not depart from the elongated slot of chute of sliding sleeve 5, slips 6 is descending in wedging state, at this moment slips 6 internal tooths are embraced fish, on carry sliding sleeve fishing socket fish up. if sliding sleeve 5 is in contact with one another with top connection 1 end face, at this moment slips 6 opens completely, and pin 4 in above-mentioned the second position, is above carried drilling tool sliding sleeve fishing socket with respect to sliding sleeve 5, it is descending that spring 2 promotes sliding sleeve 5, pin 4 slides with respect to the chute of sliding sleeve 5, slides into short groove 12 tops, at this moment the release fish position of slips in opening, again press down and carry sliding sleeve fishing socket, slips 6 again experiences and once moves up and down, and while moving to bottom, slips is held fish tightly, above carries drilling tool and takes out fish. if need to discharge fish in down-hole, press under a drilling tool and propose operation in experience so, time slips 6 behind off-position, discharge fish, take out top drilling tool.
Fig. 5 and Fig. 6 are two kinds of existing fishing sockets, and from Fig. 5 and Fig. 6, cylindrical shell 23 inwalls of prior art are provided with the cone structure of some king bolts, have had a strong impact on the tensile strength of cylindrical shell. Existing fishing socket can only carry out straight well operation, can not carry out the fishing of extended reach well and horizontal well.
Fishing socket of the present utility model has hydraulic pressure and two kinds of salvaging principles of machinery, be convenient to oil field drilling team according to actual condition, take concrete fishing measure, the cylindrical shell 9 inside and outside surfaces of front end of sliding sleeve fishing socket are all welded with hard tungsten-cobalt alloy particle, can bury the cover milling operation of fish crown portion, make to overlap that milling and fishing are disposable completes, flow process is salvaged in easy milling, is the novel fishing tool of the indispensable one in oil field. Can be used for the fishing of the highly difficult well of extended reach well and horizontal well, also can in straight well, carry out fishing, can replace the reversible fishing socket of current conventional use completely.
Claims (3)
1. two sleeve type slip sockets that discharge, is characterized in that: comprise axle (8); In the bottom outlet of axle (8), be provided with throttle nozzle (7); Bottom axle (8), cover has sliding sleeve (5), and the internal thread of sliding sleeve (5) bottom outlet is connected with the external screw thread of axle (8) bottom, and the external screw thread of sliding sleeve (5) bottom is connected with the internal thread of slips (6) top mouth; Sliding sleeve (5) overcoat has cylindrical shell (9), and cylindrical shell (9) bottom is provided with milling head (20); The internal thread of cylindrical shell (9) top mouth is connected with the external screw thread of top connection (1); The upper cover of axle (8) between sliding sleeve (5) and top connection (1) has spring (2), between spring (2) bottom and sliding sleeve (5), is provided with bearing (3); The periphery of sliding sleeve (5) is provided with chute (10), and cylindrical shell (9) is provided with pin (4), and pin (4) one end is positioned at chute (10).
2. two sleeve type slip sockets that discharge according to claim 1, it is characterized in that: described chute (10) comprises two elongated slots (11) and two the short grooves (12) that are uniformly distributed along the circumference, and be positioned at one group of stopper slot (13) of opposite direction between elongated slot (11) and short groove (12), between elongated slot (11), stopper slot (13) and short groove (12), connect through wave channel (14).
3. two sleeve type slip sockets that discharge according to claim 1, it is characterized in that: described slips (6) bottom cylindrical is the conical surface (19), slips (6) bottom is uniformly distributed with one group of retraction slot (18) along the circumference, is provided with and salvages pawl (17) in slips (6) bottom outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521092414.8U CN205243464U (en) | 2015-12-25 | 2015-12-25 | Two release sliding sleeve formula slip sockets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521092414.8U CN205243464U (en) | 2015-12-25 | 2015-12-25 | Two release sliding sleeve formula slip sockets |
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| Publication Number | Publication Date |
|---|---|
| CN205243464U true CN205243464U (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521092414.8U Active CN205243464U (en) | 2015-12-25 | 2015-12-25 | Two release sliding sleeve formula slip sockets |
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| CN (1) | CN205243464U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422035A (en) * | 2015-12-25 | 2016-03-23 | 贵州高峰石油机械股份有限公司 | Double-release sliding sleeve type bowl slip-socket and underground falling-object catching method |
| CN106761520A (en) * | 2016-12-13 | 2017-05-31 | 中国石油化工股份有限公司 | Mechanical set drags for integrated tool and its application method |
| CN107420063A (en) * | 2017-07-13 | 2017-12-01 | 四川圣诺油气工程技术服务有限公司 | The salvaging system and its Refloatation method of a kind of downhole tool |
| CN109296329A (en) * | 2018-11-29 | 2019-02-01 | 四川圣诺油气工程技术服务有限公司 | A kind of big orifice junk mill device |
| CN110952946A (en) * | 2019-11-27 | 2020-04-03 | 淮安市井神钻采机具有限公司 | Fishing barrel capable of catching fish strongly |
-
2015
- 2015-12-25 CN CN201521092414.8U patent/CN205243464U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422035A (en) * | 2015-12-25 | 2016-03-23 | 贵州高峰石油机械股份有限公司 | Double-release sliding sleeve type bowl slip-socket and underground falling-object catching method |
| CN106761520A (en) * | 2016-12-13 | 2017-05-31 | 中国石油化工股份有限公司 | Mechanical set drags for integrated tool and its application method |
| CN107420063A (en) * | 2017-07-13 | 2017-12-01 | 四川圣诺油气工程技术服务有限公司 | The salvaging system and its Refloatation method of a kind of downhole tool |
| CN107420063B (en) * | 2017-07-13 | 2019-10-25 | 四川圣诺油气工程技术服务有限公司 | A kind of the salvaging system and its Refloatation method of downhole tool |
| CN109296329A (en) * | 2018-11-29 | 2019-02-01 | 四川圣诺油气工程技术服务有限公司 | A kind of big orifice junk mill device |
| CN109296329B (en) * | 2018-11-29 | 2020-08-07 | 四川圣诺油气工程技术服务有限公司 | Large-drift-diameter shoe grinding device |
| CN110952946A (en) * | 2019-11-27 | 2020-04-03 | 淮安市井神钻采机具有限公司 | Fishing barrel capable of catching fish strongly |
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| GR01 | Patent grant |