CN203499627U - Hydraulic oil well packer - Google Patents

Abstract

The utility model relates to a hydraulic oil well packer which comprises a split-flow connector, a blocking ball, a separating outer pipe, an unsetting head, a separating central pipe, a locking block jacket, a separating shear pin, a separating locking block, an unsetting shear pin, a locking ring, a locking ring base, a locking pipe, a locking spring liner pipe, a locking spring, a locking spring sleeve, an upper piston, an upper setting shear pin, a central pipe locking block, a lower piston, a rubber sleeve shaft, a central pipe, a rubber sleeve, an upper cone connector, a lower setting shear pin, an upper cone, a slip sleeve, a slip, a spacer sleeve, a lower cone and a locking block sleeve. During the processes of descending the well and producing, the setting shear pins do not bear the force, so that the hydraulic oil well packer is prevented from being midway set during the process of descending the well and the success rate of oil production by layer is high. The hydraulic oil well packer is provided with a well washing channel and the well can be washed at any time before the setting, so that the hydraulic oil well packer can be normally set; the unsetting shear pin does not bear the force during the process of descending the well and lower pulling force borne by the unsetting shear pin can be designed, so that the unsetting becomes easy; and the hydraulic oil well packer has the advantages of excellent usability, high use success rate, low operation cost and good economic benefit.

Description

Hydraulic oil well packer

Technical field:

The utility model is the underground equipment of using in oil well, is a kind of hydraulic oil well packer, particularly a kind of hydraulic oil well packer.

Background technology:

The existing bridging plug layering in oil field instrument, Y445 layering instrument are hydraulic base sealed, grapplings, give up again (throwing off with tubing string), lower tubular column lifts disconnected deblocking pin deblocking to buckling, the power that lifts disconnected deblocking pin on existing this type of layering instrument is large, and deblocking difficulty can not well-flushing in the process of going into the well, the a little class layering in the down-hole instrument causing can not be normally setting, make oil well can not realize the object of oil production by layer, oil well output is low, deficiency in economic performance.This type of layering instrument thrust that shear pin will bear component in the process of going into the well is easily cut off when going into the well excessive velocities, cause setting midway, the complete object that do not become to construct, the operation of need to doing over again, increases operating cost.

Summary of the invention:

The purpose of this utility model is a kind of hydraulic oil well packer of design, makes it can clean-out service, avoids setting midway, realizes oil production by layer, improves oil well output.

The purpose of this utility model is achieved in that and comprises tap, stifled ball, separated outer tube, separate end socket, separation center pipe, lock dog sheath, separated shear pin, separated lock dog, deblocking shear pin, lock ring, lock ring seat, locking pipe, snap bushing pipe, snap, snap cover, upper piston, upper setting shear pin, central tube lock dog, lower piston, packing element axle, central tube, packing element, upper cone joint, lower setting shear pin, upper cone, slip sleeve, slips, interstage sleeve, lower cone, lock dog cover, stifled ball seat drops in tap, tap lower external thread is connected with separated outer tube top, tap lower internal thread is connected with separation center pipe top, between separated outer tube and separation center pipe, there is solution end socket, separate on end socket and have salvaging external screw thread, separate end socket lower internal thread and be connected with snap bushing pipe top, separating under end socket is locking pipe, locking pipe, between snap bushing pipe, by deblocking shear pin, fixed, locking pipe is locked in separated outer tube by separated lock dog, lock dog is surrounded by lock dog cover, lock dog cover bottom is connected with lock ring seat top, lock ring is arranged in the groove in lock ring seat, lock ring has interior unidirectional button, lock ring is buckled in outer unidirectional the buckling of locking pipe, snap top screw thread is connected with locking pipe internal thread, under snap, end mill is split into bar body, snap cover is suspended on outside the shoulder of snap lower end, the inwall that under snap, end mill is split into bar body is supported by snap bushing pipe bottom outer wall, insert in snap cover separation center pipe bottom, snap cover bottom is connected with central tube top, between lock ring seat and snap cover, install piston, insert in lower piston upper piston bottom, lower piston is connected to lock ring seat bottom, upper piston, lower piston is fixed by upper setting shear pin, packing element axle is locked on central tube by central tube lock dog, central tube lock dog is surrounded by upper piston, packing element is sleeved on outside packing element axle, packing element axle bottom hangs upper cone joint, and upper cone joint is connected with upper cone, and slip sleeve is suspended on upper cone, central tube bottom is connected with lower cone top, upper cone, between lower cone, there is slips, the window place of slips in slip sleeve, slip sleeve bottom is connected with interstage sleeve, lock dog sheath is connected with separated external pipe thread, and lock dog sheath is sleeved on outside lock dog cover, has vertical-shaped runner on tap, tap has side direction well-flushing passage, and linked hole is arranged at central tube top.

The salvaging external screw thread of separating on end socket is left hand thread.

Packing element has three, and there is spacer ring centre.

The beneficial effects of the utility model are: go into the well and manufacturing process in, setting shear pin is holding capacity not, thereby the utility model can be not setting midway in the process of going into the well, oil production by layer success rate is high.The utility model has well-flushing passage, well-flushing at any time before setting, can make the utility model normally setting, deblocking shear pin does not stress when going into the well, and the power that bears of deblocking shear pin can design lower, thereby be easy to deblocking, therefore, the utility model functional performance is good, uses success rate high, operating cost is low, good in economic efficiency.

Accompanying drawing explanation:

Accompanying drawing is the assembling drawing of the utility model embodiment.

The specific embodiment:

Below in conjunction with accompanying drawing, embodiment of the present utility model is described.

Comprise tap 1, stifled ball 2, separated outer tube 5, separate end socket 6, separation center pipe 7, lock dog sheath 8, separated shear pin 9, separated lock dog 10, deblocking shear pin 11, lock ring 12, lock ring seat 13, locking pipe 14, snap bushing pipe 15, snap 16, snap cover 17, upper piston 18, upper setting shear pin 19, central tube lock dog 20, lower piston 21, packing element axle 22, central tube 23, packing element 24, upper cone joint 25, lower setting shear pin 26, upper cone 27, slip sleeve 28, slips 29, interstage sleeve 30, lower cone 31, lock dog cover 32, stifled ball 2 is located in 1 li of tap, tap 1 lower external thread is connected with separated outer tube 5 tops, tap 1 lower internal thread is connected with separation center pipe 7 tops, between separated outer tube 5 and separation center pipe 7, there is the end socket 6 of solution, separate on end socket 6 and have salvaging external screw thread, separate end socket 6 lower internal thread and be connected with snap bushing pipe 15 tops, separating under end socket 6 is locking pipe 14, locking pipe 14, fixing by deblocking shear pin 11 between snap bushing pipe 15, locking pipe 14 is locked on separated outer tube 5 by separated lock dog 10, lock dog 10 is surrounded by lock dog cover 32, lock dog overlaps 32 bottoms and is connected with lock ring seat 13 tops, lock ring 12 is arranged in the groove in lock ring seat 13, lock ring 12 has interior unidirectional button, lock ring 12 is buckled in outer unidirectional the buckling of locking pipe 14, snap 16 top screw threads are connected with locking pipe 14 internal threads, 16 times end mills of snap are split into bar body, snap cover 17 is suspended on outside the shoulder of snap 16 lower ends, the inwall that 16 times end mills of snap are split into bar body is supported by snap bushing pipe 15 bottom outer walls, insert in snap cover 17 separation center pipe 7 bottoms, snap overlaps 17 bottoms and is connected with central tube 23 tops, between lock ring seat 13 and snap cover 17, install piston 18, insert in lower piston 21 upper piston 18 bottoms, lower piston 21 is connected to lock ring seat 13 bottoms, upper piston 18, lower piston 21 is fixing by upper setting shear pin 19, packing element axle 22 is locked on central tube 23 by central tube lock dog 20, central tube lock dog 20 is surrounded by upper piston 18, packing element 24 is sleeved on outside packing element axle 22, packing element axle 22 bottoms hang upper cone joint 25, and upper cone joint 25 is connected with upper cone 27, and slip sleeve 28 is suspended on upper cone 27, central tube 23 bottoms are connected with lower cone 31 tops, upper cone 27, between lower cone 31, there is slips 29, the window place of slips 29 in slip sleeve 28, slip sleeve 28 bottoms are connected with interstage sleeve 30, lock dog sheath 8 is threaded with separated outer tube 5, lock dog sheath 8 is sleeved on outside lock dog cover 32, on tap 1, have vertical-shaped runner 3, tap 1 has side direction well-flushing passage 4, and linked hole 33 is arranged at central tube 23 tops.The salvaging external screw thread of separating on end socket 6 is left hand thread.Packing element 24 has three, and there is spacer ring centre.

While going into the well, shut lower cone 31 bottoms, and stifled ball 2 is not put into, and while needing well-flushing, in oil pipe, squeezes into flushing fluid, through side direction well-flushing passage 4, from returning out flushing fluid in sleeve pipe, realizes well-flushing, also can in sleeve pipe, squeeze into flushing fluid, in oil pipe, returns out flushing fluid,

When setting, drop into stifled ball 2, side direction well-flushing passage 4 is blocked, in oil pipe, suppress, pressure imports into from the linked hole 33 in upper inner tube 23, promotes upper piston 18 up, cut off after setting shear pin 19, central tube lock dog 20 is released, and lower piston 21, packing element axle 22 are descending, slips 29 is released and be anchored on sleeve pipe, packing element 24 compand Sealed casing pipes, lock ring 12 comes downwards to another location and again pins, and lock ring 12 keeps packing element compressive state, pressure after disappearing still in sealing locking state.Upper lifting pipe post, separated shear pin 9 is cut off, and separated lock dog 10 discharges, and tap 1, stifled ball 2, separated outer tube 5, separation center pipe 7, lock dog sheath 8 are suggested, and realize tubing string separated with layering instrument, and other parts are stayed well inner seal sleeve pipe.

During deblocking, drag for to separate on end socket 6 and carry, break deblocking shear pin 11, locking pipe 14 is thrown off with snap bushing pipe 15, and snap bushing pipe 15 no longer supports snap 16, and the bar body that snap 16 bottom millings are split into shrinks, snap 16 is thrown off with snap cover 17, and slips 29, packing element 24 are regained, and realizes deblocking.

Claims (3)

1. a hydraulic oil well packer, comprises tap (1), stifled ball (2), separated outer tube (5), separate end socket (6), separation center pipe (7), lock dog sheath (8), separated shear pin (9), separated lock dog (10), deblocking shear pin (11), lock ring (12), lock ring seat (13), locking pipe (14), snap bushing pipe (15), snap (16), snap cover (17), upper piston (18), upper setting shear pin (19), central tube lock dog (20), lower piston (21), packing element axle (22), central tube (23), packing element (24), upper cone joint (25), lower setting shear pin (26), upper cone (27), slip sleeve (28), slips (29), interstage sleeve (30), lower cone (31), lock dog cover (32), it is characterized in that: it is inner that stifled ball (2) is located in tap (1), tap (1) lower external thread is connected with separated outer tube (5) top, tap (1) lower internal thread is connected with separation center pipe (7) top, between separated outer tube (5) and separation center pipe (7), there is solution end socket (6), separate on end socket (6) and have salvaging external screw thread, separating end socket (6) lower internal thread is connected with snap bushing pipe (15) top, separating under end socket (6) is locking pipe (14), locking pipe (14), fixing by deblocking shear pin (11) between snap bushing pipe (15), locking pipe (14) is locked on separated outer tube (5) by separated lock dog (10), lock dog (10) is surrounded by lock dog cover (32), lock dog cover (32) bottom is connected with lock ring seat (13) top, lock ring (12) is arranged in the groove in lock ring seat (13), lock ring (12) has interior unidirectional button, lock ring (12) is buckled in outer unidirectional the buckling of locking pipe (14), snap (16) top screw thread is connected with locking pipe (14) internal thread, the lower end mill of snap (16) is split into bar body, snap cover (17) is suspended on outside the shoulder of snap (16) lower end, the inwall that the lower end mill of snap (16) is split into bar body is supported by snap bushing pipe (15) bottom outer wall, insert in snap cover (17) separation center pipe (7) bottom, snap cover (17) bottom is connected with central tube (23) top, between lock ring seat (13) and snap cover (17), install piston (18), insert in lower piston (21) upper piston (18) bottom, lower piston (21) is connected to lock ring seat (13) bottom, upper piston (18), lower piston (21) is fixing by upper setting shear pin (19), packing element axle (22) is locked on central tube (23) by central tube lock dog (20), central tube lock dog (20) is surrounded by upper piston (18), packing element (24) is sleeved on outside packing element axle (22), packing element axle (22) bottom hangs upper cone joint (25), upper cone joint (25) is connected with upper cone (27), slip sleeve (28) is suspended on upper cone (27), central tube (23) bottom is connected with lower cone (31) top, upper cone (27), between lower cone (31), there is slips (29), the window place of slips (29) in slip sleeve (28), slip sleeve (28) bottom is connected with interstage sleeve (30), lock dog sheath (8) is threaded with separated outer tube (5), lock dog sheath (8) is sleeved on outside lock dog cover (32), on tap (1), there is vertical-shaped runner (3), tap (1) has side direction well-flushing passage (4), and linked hole (33) is arranged at central tube (23) top.

2. hydraulic oil well packer according to claim 2, is characterized in that: the salvaging external screw thread of separating on end socket (6) is left hand thread.

3. hydraulic oil well packer according to claim 1, is characterized in that: packing element (24) has three, and there is spacer ring centre.

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