Summary of the invention
The technical problem to be solved in the present invention is:, for solving the problem, provide a kind of packer.
The object of the invention is to realize in the following manner:
A kind of packer, comprise hermetic unit and anchoring device, hermetic unit is threaded with anchoring device; Hermetic unit is positioned at the top of riveting device, and hermetic unit and anchoring device are all hollow structure, and hermetic unit and anchoring device are all provided with retaining mechanism and tripper; During input, from hermetic unit injection pressure, when pressure acquires a certain degree, anchoring device tighten mechanism II locking, the retaining mechanism I of hermetic unit is locked, during salvaging afterwards, retaining mechanism I untied by the tripper I of hermetic unit, and the tripper II of anchoring device is untied and tightened mechanism II.
Hermetic unit comprises joint I 1, joint I 1 internal thread is threaded with central tube I 11 external screw thread, connecting cylinder I 4 upper end is connected to outside joint I 1 by slider I 2, slider I 2 is connected on joint I 1 by screw 22, boss I is processed with inside connecting cylinder I 4, lock claw I 3 is enclosed within outside central tube I 11, lock claw I 3 is between joint I 1 and boss I, boss II is processed with on outside central tube I 11, separate lock ring I 5 and boss II upper-end contact, connecting cylinder I 4 lower end is connected with joint II 8 threaded upper ends, packing element sleeve pipe 7 is provided with between joint II 8 and central tube II 17, packing element sleeve pipe 7 upper end is threaded with lock ring I 6, joint II 8 lower end is threaded with wedging body 9, wedge in the middle part of body 9 and be provided with sealing ring I 23 between packing element sleeve pipe 7, wedging body 9 lower end contacts with packing element sleeve pipe 7, packing element 10 is enclosed within outside wedging body 9, packing element sleeve pipe 7 lower end is threaded with joint III 13, wedging body overlaps 12 internal threads and is threaded with joint III 13 upper external screw thread, joint III 13 lower end is threaded with sleeve I 15, central tube I 11 lower end is connected with adapter sleeve I 16 threaded upper ends, adapter sleeve I 16) between central tube I 11 and sleeve I 15, piston I 14 is enclosed within central tube I 11, and between joint III 13 and adapter sleeve I 16, annular groove is processed with inside piston I 14, on central tube I 11, relevant position is evenly equipped with through hole I, adapter sleeve I 16 lower end is connected with central tube II 17 threaded upper ends, central tube II 17 lower end is threaded with joint IV 21, be threaded with sleeve II 20 lower end outside joint IV 21, piston II 19 is between sleeve II 20 and central tube II 17, sleeve II 20 upper end is connected by shear pin II with piston II 19, sleeve I 15 lower end is connected by shear pin I 18 with piston II 19, central tube II 17 radial direction is evenly equipped with through hole II, through hole is between piston II 19 and joint IV 21.
Retaining mechanism I comprises lock claw I 3 and lock ring I 6, and during locking, lock ring I 6 is sleeved in lock claw I 3.
Tripper I is for separating lock ring I 5, and during unblock, lock claw I 3 departs from lock ring I 6 under the pressure separating lock ring I 5.
Anchoring device comprises joint V 24, joint V 24 internal thread is threaded with central tube III 30 external screw thread, connecting cylinder II 26 is connected with joint V 24 by slide block II 25, slide block II 25 is connected on joint V 24 by pin 44, boss III is processed with inside connecting cylinder II 26, lock claw II 27 is enclosed within central tube III 30, lock claw II 27 is between joint V 24 and boss III, central tube III 30 is processed with boss IV, separate lock ring II 28 be threaded with central tube III 30 and with boss IV upper contact, connecting cylinder II 26 lower end is threaded with anchor tooth main body 32, tube connector 31 is provided with between anchor tooth main body 32 and central tube III 30, tube connector 31 upper end is threaded with lock ring II 29, tube connector 31 lower end is threaded with anchor tooth seat 34, anchor tooth 33 is provided with between anchor tooth main body 32 and anchor tooth seat 34, anchor tooth seat 34 lower end is connected by shear pin III with cylinder barrel I 37 upper end, cylinder barrel I 37 lower end is connected by shear pin IV with piston III 40, piston IV 36 and adapter sleeve II 38 is provided with between piston III 40 and anchor tooth seat 34, on piston IV 36, cover has sealing ring II 45, adapter sleeve II 38 upper end is threaded with central tube III 30, piston IV 36 is enclosed within central tube III 30, cannelure II is provided with inside piston IV 36, central tube III 30 is being evenly equipped with through hole III with cannelure II relevant position, adapter sleeve II 38 lower end is threaded with central tube IV 39, piston III 40 is enclosed within central tube IV 39, cylinder barrel II 41 to be enclosed within piston III 40 and to be connected by shear pin V, cylinder barrel II 41 lower end is threaded with joint VI 42, central tube IV 39 radial direction is provided with through hole IV, through hole IV is between piston III 40 and joint VI 42, joint VI 42 lower end is threaded with plug 43.
Tighten mechanism II and comprise lock claw II 27 and lock ring II 29, during locking, lock ring II 29 is sleeved in lock claw II 27.
Tripper II is for separating lock ring II 28, and during unblock, lock claw II 27 departs from lock ring II 29 under the pressure effect of separating lock ring II 28.
Described wedging body 9 minor diameter and major diameter transition position are the conical surface; Described connecting cylinder I 4 and connecting cylinder II 26 wall all have through hole.
The external screw thread of described lock claw I 3 is contrary with the internal thread tooth form of lock ring I 6, and the external screw thread of lock claw II 27 is contrary with the internal thread tooth form of lock ring II 29.
Described lock claw I 3 and lock claw II 27 circumferentially face have elongated slot all uniformly there being screw thread one end, and form of thread is that crest is to becoming 15 ° ~ 45 ° angles left with horizon; Described lock ring I 6 and lock ring II 29 threaded one end tooth form are crest and become 15 ° ~ 45 ° angles to the right with horizon.
Relative to prior art, this packer is divided into upper and lower two parts by the present invention, and bottom adopts anchor tooth to fix, and can increase the stability after packing element and casing-contact, prevents packing element because be subject to down-hole pressure instability, causes position to offset; What describe more than adopting sets mode, can set pressure, packing element is sealed with minimum; Adopt the above locking mechanism described, can be quick, accurate self-locking, and deblocking is simple, only needs upper lifting pipe post to unlock; The present invention, adopts above structure to increase work efficiency, and increases and sets success rate, reduces operating expenses.
Detailed description of the invention
as Figure 1-Figure 2, a kind of packer, comprise hermetic unit and anchoring device, hermetic unit is threaded with anchoring device; Hermetic unit is positioned at the top of riveting device, and hermetic unit and anchoring device are all hollow structure, and hermetic unit and anchoring device are all provided with retaining mechanism and tripper; During input, from hermetic unit injection pressure, when pressure acquires a certain degree, anchoring device tighten mechanism II locking, the retaining mechanism I of hermetic unit is locked, during salvaging afterwards, retaining mechanism I untied by the tripper I of hermetic unit, and the tripper II of anchoring device is untied and tightened mechanism II.
Hermetic unit comprises joint I 1, joint I 1 internal thread is threaded with central tube I 11 external screw thread, connecting cylinder I 4 upper end is connected to outside joint I 1 by slider I 2, slider I 2 is connected on joint I 1 by screw 22, boss I is processed with inside connecting cylinder I 4, lock claw I 3 is enclosed within outside central tube I 11, lock claw I 3 is between joint I 1 and boss I, boss II is processed with on outside central tube I 11, separate lock ring I 5 and boss II upper-end contact, connecting cylinder I 4 lower end is connected with joint II 8 threaded upper ends, packing element sleeve pipe 7 is provided with between joint II 8 and central tube II 17, packing element sleeve pipe 7 upper end is threaded with lock ring I 6, joint II 8 lower end is threaded with wedging body 9, wedge in the middle part of body 9 and be provided with sealing ring I 23 between packing element sleeve pipe 7, wedging body 9 lower end contacts with packing element sleeve pipe 7, packing element 10 is enclosed within outside wedging body 9, packing element sleeve pipe 7 lower end is threaded with joint III 13, wedging body overlaps 12 internal threads and is threaded with joint III 13 upper external screw thread, joint III 13 lower end is threaded with sleeve I 15, central tube I 11 lower end is connected with adapter sleeve I 16 threaded upper ends, adapter sleeve I 16) between central tube I 11 and sleeve I 15, piston I 14 is enclosed within central tube I 11, and between joint III 13 and adapter sleeve I 16, annular groove is processed with inside piston I 14, on central tube I 11, relevant position is evenly equipped with through hole I, adapter sleeve I 16 lower end is connected with central tube II 17 threaded upper ends, central tube II 17 lower end is threaded with joint IV 21, be threaded with sleeve II 20 lower end outside joint IV 21, piston II 19 is between sleeve II 20 and central tube II 17, sleeve II 20 upper end is connected by shear pin II with piston II 19, sleeve I 15 lower end is connected by shear pin I 18 with piston II 19, central tube II 17 radial direction is evenly equipped with through hole II, through hole is between piston II 19 and joint IV 21.
Retaining mechanism I comprises lock claw I 3 and lock ring I 6, and during locking, lock ring I 6 is sleeved in lock claw I 3.
Tripper I is for separating lock ring I 5, and during unblock, lock claw I 3 departs from lock ring I 6 under the pressure separating lock ring I 5.
Anchoring device comprises joint V 24, joint V 24 internal thread is threaded with central tube III 30 external screw thread, connecting cylinder II 26 is connected with joint V 24 by slide block II 25, slide block II 25 is connected on joint V 24 by pin 44, boss III is processed with inside connecting cylinder II 26, lock claw II 27 is enclosed within central tube III 30, lock claw II 27 is between joint V 24 and boss III, central tube III 30 is processed with boss IV, separate lock ring II 28 be threaded with central tube III 30 and with boss IV upper contact, connecting cylinder II 26 lower end is threaded with anchor tooth main body 32, tube connector 31 is provided with between anchor tooth main body 32 and central tube III 30, tube connector 31 upper end is threaded with lock ring II 29, tube connector 31 lower end is threaded with anchor tooth seat 34, anchor tooth 33 is provided with between anchor tooth main body 32 and anchor tooth seat 34, anchor tooth seat 34 lower end is connected by shear pin III with cylinder barrel I 37 upper end, cylinder barrel I 37 lower end is connected by shear pin IV with piston III 40, piston IV 36 and adapter sleeve II 38 is provided with between piston III 40 and anchor tooth seat 34, on piston IV 36, cover has sealing ring II 45, adapter sleeve II 38 upper end is threaded with central tube III 30, piston IV 36 is enclosed within central tube III 30, cannelure II is provided with inside piston IV 36, central tube III 30 is being evenly equipped with through hole III with cannelure II relevant position, adapter sleeve II 38 lower end is threaded with central tube IV 39, piston III 40 is enclosed within central tube IV 39, cylinder barrel II 41 to be enclosed within piston III 40 and to be connected by shear pin V, cylinder barrel II 41 lower end is threaded with joint VI 42, central tube IV 39 radial direction is provided with through hole IV, through hole IV is between piston III 40 and joint VI 42, joint VI 42 lower end is threaded with plug 43.
Tighten mechanism II and comprise lock claw II 27 and lock ring II 29, during locking, lock ring II 29 is sleeved in lock claw II 27.
Tripper II is for separating lock ring II 28, and during unblock, lock claw II 27 departs from lock ring II 29 under the pressure effect of separating lock ring II 28.
Described wedging body 9 minor diameter and major diameter transition position are the conical surface; Described connecting cylinder I 4 and connecting cylinder II 26 wall all have through hole.
The external screw thread of described lock claw I 3 is contrary with the internal thread tooth form of lock ring I 6, and the external screw thread of lock claw II 27 is contrary with the internal thread tooth form of lock ring II 29.
Described lock claw I 3 and lock claw II 27 circumferentially face have elongated slot all uniformly there being screw thread one end, form of thread be crest to becoming 15 ° ~ 45 ° angles left with horizon, the size of angle can be 15 °, 18 °, 20 °, 23 °, 25 °, 28 °, 30 °, 33 °, 35 °, 38 °, 40 °, 43 ° or 45 °.
Described lock ring I 6 and lock ring II 29 threaded one end tooth form are crest and become 15 ° ~ 45 ° angles to the right with horizon, and the size of angle can be 15 °, 17 °, 20 °, 23 °, 25 °, 28 °, 30 °, 33 °, 35 °, 38 °, 40 °, 43 ° or 45 °.
Course of work when the present invention drops into: fluid pressure imports into from joint I 1, through central tube I 11, central tube II 17, joint IV 21, joint V 24, central tube III 30, central tube IV 39, joint IV 42 to plug 43, bottom is shut by plug 43, in central passage, pressure starts to increase, pressure flows out from the through hole IV of the through hole I of central tube I 11, the through hole II of central tube II 17, the through hole III of central tube III 30 and central tube IV 39, applies pressure to piston I 14, piston II 19, piston IV 36 and piston III 40; First piston IV 36 and piston III 40 move, piston III 40 is cut off shear pin V and is promoted cylinder barrel I 37 and anchor tooth seat 34 moves, anchor tooth seat 34 promotes tube connector 31, lock ring II 29 and moves to lock claw II 27 direction together, anchor tooth 33 moves on the conical surface of anchor tooth main body 32 simultaneously, when lock ring II 29 is engaged completely with lock claw II 27, anchor tooth 33 and sleeve tightly fit together, and complete fixing; Now pressure continues to increase, first piston II 19 and piston I 14 move, piston II 19 is cut off shear pin II and is promoted sleeve I 15, joint III 13 and the motion of wedging body cover 12, joint III 13 promotes packing element sleeve pipe 7 and moves to lock claw I 3 direction together with lock ring I 6, packing element 10 moves on the conical surface of wedging body 9 simultaneously, when lock ring I 6 is engaged completely with lock claw I 3, packing element 10 and sleeve tightly fit together, and work completes.
Course of work during salvaging: install on joint I 1 and set, upwards carry joint I 1, joint I 1 drives central tube I 11, adapter sleeve I 16, central tube II 17, joint IV 21, joint V 24, central tube III 30, adapter sleeve II 38, central tube IV 39, joint VI 42, plug 43 moves upward, the boring ratio slider I 2 that connecting cylinder I 4 coordinates with slider I 2 is large, the boring ratio slide block II 25 that connecting cylinder II 26 coordinates with slide block II 25 is large, connecting cylinder I 4 and connecting cylinder II 26 can not move upward simultaneously, solution lock ring I 5 is followed central tube I 11 and is moved upward, solution lock ring II 28 is followed central tube III 30 and is moved upward, because lock claw I 3 and lock claw II 27 are all that circumferentially face has elongated slot all uniformly there being screw thread one end, diameter is collapsible, lock claw I 3 diameter under the effect of separating lock ring I 5 diminishes and to depart from lock ring I 6, lock claw II 27 diameter under the effect of separating lock ring II 28 diminishes and to depart from lock ring II 29, packing element 10 and anchor tooth 33 lose axial compression and produce resilience, all depart from sleeve, packer is salvaged out smoothly.