Summary of the invention
The purpose of this utility model is to provide the passed through cable packer of a kind of improvement, adopt the combinative structure of slip central canal, main shaft, piston, piston cylinder, single, double surface screw thread step-by-step movement lock tooth, lock tooth set, composite sealing assembly and upper/lower cone, both effectively solve existing cable pass through packer cannot high temperature resistant, load performance is low, a difficult problem for underground steam injection, sealing, effectively avoids again or overcomes the shortcoming or deficiency that exist in prior art.
Described in the utility model pass through cable packer, including slip central canal, retainer ring, seal pressure cap, main shaft, piston, piston cylinder, two-sided screw thread step-by-step movement lock tooth, lock tooth set, composite sealing assembly, upper cone, one side screw thread step-by-step movement lock tooth, slips, lower cone, adapter sleeve, powerful lock dog, solve seal ring.Described main shaft is respectively equipped with main operation pore, setting hole, venting valve opening, big orifice cable passes through hole, controls traversing pipe line hole, sequentially installs and be connected to piston cylinder, lock tooth set, composite sealing assembly, upper cone, slips and lower cone outside main shaft, slip central canal passes through main operation pore, being installed as one with main shaft, slip central canal top is installed and is connected to retainer ring, installs and be connected to solution seal ring under lower step.
Wherein, described main shaft top is respectively equipped with interior step and outer groove, between interior step top and slip central canal, seal pressure cap and black box are installed, it is provided with annular space between bottom and slip central canal, piston cylinder and lock tooth set are installed in outer groove, piston cylinder internal upper part is provided with piston, and bottom is provided with two-sided screw thread step-by-step movement lock tooth, and piston cylinder bottom is fixed with lock tooth set by setting pin.Described upper cone is provided with inner groove, is provided with one side screw thread step-by-step movement lock tooth between this inner groove and main shaft, and one side screw thread step-by-step movement lock tooth can only single-way moving.Outside described main shaft bottom, upper cone and lower cone are installed, slips is installed between upper cone and lower cone.Described slip central canal bottom is provided with outer step, adapter sleeve and powerful lock dog are installed outside this outer step and outside the bottom of main shaft and in lower cone, solution seal ring is installed in lower cone and under this outer step, solves seal ring and fixed by deblocking pin and slip central canal bottom.Described lock tooth set set is installed on main shaft, locks tooth inner hole thread with two-sided screw thread step-by-step movement and is connected, and lock tooth set can only single-way moving.Described composite sealing assembly is installed on the middle part of main shaft, for the compound containment member of graphite fibre Yu carbon fiber knitting forming.Described slips is the tubular monolithic construction that upper and lower side divides lobe, has elastic performance, upper cone and lower cone and is inserted in slips, and the step at slips endoporus two ends catches on upper cone and the step of lower cone upper end.Described adapter sleeve top is connected with main shaft lower thread, is provided with powerful lock dog in the keyway of adapter sleeve and in the interior grooves of lower cone.
This utility model compared with prior art has the advantage that
1, global design is distributed symmetrically, and adopts slip central canal deblocking form, directly lifts up tubing string shear pin and get final product deblocking, easy-to-operate.
2, certain closure oil jacket annular space, effectively prevents well liquid and other liquid from being gushed out pit shaft by oil jacket annular space.
3, high temperature high voltage resistant, packer overall performance reaches the high pressure of resistance to 300 DEG C of high temperature and 21Mpa.
4, multiple aperture passes through packer body, provides big orifice cable penetration passage, oil recovery passage and steam injection passage respectively, is effectively improved the utilization rate of steam.
5, there is double-locking mechanism, once setting double locking, both ensure that the sealing effectiveness of packer, add again the grappling reliability of packer.
6, have tubular entire card tile style anchor mechanism, anchorage force is up to 1160KN, both righting packer, it is ensured that the reliability of packer sealing, enhances again the grappling performance of packer, also reduces the damage to sleeve pipe, protects sleeve pipe.
7, powerful lock block type locking mechanism, it is ensured that the anti-top performance that packer is superpower.
Detailed description of the invention
Consult Fig. 1-Fig. 2, one can pass through cable packer, including slip central canal 1, retainer ring 2, seal pressure cap 3, main shaft 5, piston 6, piston cylinder 7, two-sided screw thread step-by-step movement lock tooth 8, lock tooth set 10, composite sealing assembly 11, upper cone 12, one side screw thread step-by-step movement lock tooth 13, slips 14, lower cone 15, adapter sleeve 16, powerful lock dog 17, solves seal ring 18.Main shaft 5 is respectively equipped with main operation pore 20, setting hole 21, venting valve opening 22, big orifice cable passes through hole 23, controls traversing pipe line hole 24, and outer sequentially installation of main shaft 5 is connected to piston cylinder 7, lock tooth set 10, composite sealing assembly 11, upper cone 12, slips 14 and lower cone 15, slip central canal 1 passes through main operation pore 20, being installed as one with main shaft 5, slip central canal 1 top is installed and is connected to retainer ring 2, installs and be connected to solution seal ring 18 under lower step.
Main shaft 5 top is respectively equipped with interior step and outer groove, seal pressure cap 3 and black box 4 are installed between interior step top and slip central canal 1, it is provided with annular space between bottom and slip central canal 1, piston cylinder 7 and lock tooth set 10 are installed in outer groove, piston cylinder 7 internal upper part is provided with piston 6, bottom is provided with two-sided screw thread step-by-step movement lock tooth 8, and piston cylinder 7 bottom is fixed with lock tooth set 10 by setting pin 9.Upper cone 12 is provided with inner groove, is provided with one side screw thread step-by-step movement lock tooth 13 between this inner groove and main shaft, and one side screw thread step-by-step movement lock tooth 13 can only single-way moving.Upper cone 12 and lower cone 15 are installed outside main shaft 5 bottom, slips 14 is installed between upper cone 12 and lower cone 15.Slip central canal 1 bottom is provided with outer step, adapter sleeve 16 and powerful lock dog 17 are installed outside this outer step and outside the bottom of main shaft 5 and in lower cone 15, solution seal ring 18 is installed in lower cone 15 and under this outer step, solves seal ring 18 and fixed by deblocking pin 19 and slip central canal 1 bottom.Lock tooth set 10 set is installed on main shaft 5, locks tooth 8 inner hole thread with two-sided screw thread step-by-step movement and is connected, and lock tooth set 10 can only single-way moving.Composite sealing assembly 11 is installed on the middle part of main shaft 5, for the compound containment member of graphite fibre Yu carbon fiber knitting forming.Slips 14 divides the tubular monolithic construction of lobe for upper and lower side, has elastic performance, upper cone 12 and lower cone 15 and is inserted in slips 14, and the step at slips 14 endoporus two ends catches on upper cone 12 and the step of lower cone 15 upper end.Adapter sleeve 16 top is connected with main shaft 5 lower thread, is provided with powerful lock dog 17 in the keyway of adapter sleeve 16 and in the interior grooves of lower cone 15.
During this packer set, liquid is entered by setting hole 22, piston 6 is promoted to move down, it is descending that piston 6 promotes internal lock tooth to overlap 10, cut off setting pin 9, lock tooth overlaps 10 extrusion cladding black boies 11, make composite sealing assembly 11 descending, promote upper cone 12, upper cone 12 moves down drive one side screw thread step-by-step movement lock tooth 13 and moves downward simultaneously, owing to lower cone 15 is fixed, upper cone 12 descending promotion slips 14 opens setting, one side screw thread step-by-step movement lock tooth 13 locks slips 14, continue pressurization, composite sealing assembly 11 expands setting, two-sided screw thread step-by-step movement lock tooth 8 locks, packer completes setting procedure.
During this removing seal for packer, slip central canal 1 lifts up, and cuts off the deblocking pin solved in seal ring 19, slip central canal 1 moves, powerful lock dog 17 discharges, and lower cone 15 moves down, and slips 14 reclaims, release setting state, upper cone 12 moves down, and one side screw thread step-by-step movement lock tooth 13 is simultaneously descending, and composite sealing assembly 11 forced contraction releases setting state, adapter sleeve 16 blocks above each part and moves down, and deblocking process completes.