CN203050608U - Underground electric control compression packer - Google Patents
Underground electric control compression packer Download PDFInfo
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- CN203050608U CN203050608U CN 201220640788 CN201220640788U CN203050608U CN 203050608 U CN203050608 U CN 203050608U CN 201220640788 CN201220640788 CN 201220640788 CN 201220640788 U CN201220640788 U CN 201220640788U CN 203050608 U CN203050608 U CN 203050608U
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- compression packer
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Abstract
The utility model provides an automatically controlled compression packer in pit, automatically controlled compression packer in pit includes: the base pipe is sleeved with a motor, a speed reducing device, a transmission device and a packing device; the motor includes: the annular motor output shaft can be rotatably sleeved on the base pipe; the reduction gear device includes: -an annular NN-type small tooth difference planetary gear reducer (5), said NN-type small tooth difference planetary gear reducer (5) comprising: annular input and output shafts; an input shaft of the NN type planetary gear reducer with small tooth difference is connected with the annular motor output shaft; the transmission device includes: a threaded pipe (6), a transmission nut sleeve (9) and a lower sleeve (10).
Description
Technical field
The utility model relates to the oil recovery machiner field, is specifically related to the automatically controlled compression packer in kind of down-hole, and its major function is to realize packing and the deblocking of pit shaft by Long-distance Control.
Background technology
Along with the continuous appearance of problems such as reservoir pressure decline, moisture rising, technology requirement such as separate zone production, the meticulous water filling of layering, horizontal well control water blocking water are more and more urgent.In the exploitation of unconventional, low permeability oil field, the delaminating multisection pressure break also progressively replaces general pressure break, becomes one of main method of oilfield stimulation in addition.In these stratified operation technology, must use packer that different intervals is divided, with meticulous control job parameter, improve the operation actual effect.Existing packer can be divided into compression, expanding and self-sealing etc. according to the expansion fashion of cartridge, and the mode of setting of packer comprises handling tubing string, rotation tubing string, self-styled, hydraulic pressure, instrument, heating power etc. down, and the deblocking mode also comprises boring mills.
In existing compression packer technology, all by the compression and decompression of the realization of the relative position relation between change tubing string and the packer instrument to packing element and slips.Handling tubing string or rotation tubing string mode utilize the spinning movement that lifts power or tubing string on the weight, working rig of tubing string to realize setting or deblocking, and the hydraulic setting mode is by suppressing in oil pipe, the expansion of hydraulic cavities is finally compressed packing element and slips in the implementation tool.When the packer number of using at the tubing string string more after a little while, it is simple to set unsealing operation, efficient is higher.But when the packer number more for a long time, have following problem: it is excessive 1) to set deblocking power, and is difficult to accurate control.This problem can cause a plurality of packers to be difficult to simultaneous setting or deblocking, even realize that by design the order of a plurality of packers sets or deblocking, also is difficult to accurately hold setting and deblocking power of each packer the situation that causes chance card even tubing string to break.2) be difficult to realize the independent control of some packers.In case it is not enough or need control separately the time some packer setting power deficiencies, slips detent force to occur, all packer unifications need be set or unsealing operation, even need play lower tubular column again, operation technique is loaded down with trivial details, the operating type underaction.3) be difficult to realize the sealing of passing through of annular space inner control cable.In some application scenarios such as intelligent completion, intelligent water filling, require in annular space, to be lowered to armouring control cable to the shaft bottom, this just needs packer to have to pass through the ability of cable and sealing.Because existing compression packer is all longer, the elongated straight hole that passes through cable in parent tube processing will be very difficult, also can make and pass through cable complex operation complexity in the process of going into the well, and efficient is low.
In existing expanded type packer technology, all by in oil pipe, suppressing the direct expansion that realizes the packing element cylindrical space, realize the recovery of packing element after the pressure release again by cord formula or steel disc formula structure, inflatable packer is used in the underground work such as pressure break more, easy to use, but generally only be applied in the fracturing technology that drags tubing string, and the packing element expansion fashion of expanding causes the radial deformation of joint component easily, access times are limited.
The utility model content
The utility model aims to provide the automatically controlled compression packer in a kind of down-hole, it can connect several compression packers of down-hole by an armored cable, realize setting and deblocking of any one packer, realize that simultaneously presetting of other armored cables, optical cable pass through.The utility model wants to solve prior art can not distinguish the problem of accurately controlling a plurality of packers.
The utility model provides a kind of down-hole automatically controlled compression packer, and the automatically controlled compression packer in described down-hole comprises: parent tube and be set in motor, deceleration device, transmission device and packing device on the described parent tube;
Described motor comprises: the motor output shaft of annular, and the motor output shaft of described annular can be set on the described parent tube rotationally;
Described deceleration device comprises: the NN type planet gear speed reducer with small tooth difference 5 of annular, and described NN type planet gear speed reducer with small tooth difference 5 comprises: power shaft and the output shaft of annular;
The power shaft of described NN type planet gear speed reducer with small tooth difference is connected with the motor output shaft of described annular;
Described transmission device comprises: can be set in the screwed pipe 6 that described parent tube is outer and be connected with the output shaft of described NN type planet gear speed reducer with small tooth difference rotationally; Transmission nut cover 9, sheathed described screwed pipe 6 outer also described relatively parent tubes 2 move up and down by being spirally connected; Lower sleeve 10 is screwed onto the lower end of described transmission nut cover 9 and is set in described transmission nut and overlaps outside 9;
Described packing device comprises: with described lower sleeve 10 in abutting connection with and be positioned at first pressure ring 13 and second pressure ring 20 of described lower sleeve 10 belows successively, described first pressure ring 13 and second pressure ring, 20 compartment of terrains are set on the described parent tube; Packing element is set on the described parent tube and between described first pressure ring 13 and second pressure ring 20; The slips external member is set on the described parent tube and is positioned under described second pressure ring 20, and described slips external member comprises: successively on below described second pressure ring 20 voussoir 21, lower wedge block 25 and on described slips 23 between voussoir 21 and the lower wedge block 24.
Further, described motor also comprises: the rotor of annular and the stator that is set in outside the described rotor, described rotor is set in outside the described parent tube.
Further, the motor output shaft of described annular is eccentric tube, and the power shaft of described NN type planet gear speed reducer with small tooth difference is integral structure with the motor output shaft of annular.
Further, described parent tube comprises: by last parent tube 1 and the following parent tube 14 that parent tube connector 11 is threaded, described first pressure ring 13 is arranged on the described parent tube 14 down, and described screwed pipe 6 is arranged on described going up on the parent tube 1.
Further, the automatically controlled compression packer in described down-hole also comprises: upper bush 8 is screwed onto the upper end of described transmission nut cover 9 and is set in described transmission nut and overlaps outside 9; Outer protection tube 12 is set in outside described NN type planet gear speed reducer with small tooth difference 5, described upper bush 8 and the described lower sleeve 10, and with the upper end adjacency of described first pressure ring 13.
Further, the automatically controlled compression packer in described down-hole also comprises: be arranged on the described down parent tube 14 by being threaded and abut against adjustment baffle ring 26 under the described lower wedge block 25.
Further, described slips external member also comprises: be supported on described a plurality of slip sleeves 22 of going up on voussoir 21 and the lower wedge block 25 respectively, in the grooved space that described slips 23 embeds on the described slip sleeve 22.
Further, described slips external member also comprises: be arranged on the spring 24 between described slips 23 and the described slip sleeve 22.
Further, described packing element is for being set on the described parent tube 14 down successively and a plurality of minutes sleeves that arrange at interval.
Further, the automatically controlled compression packer in described down-hole also comprises: be socketed in described top connection 2 of going up parent tube 1 top.
The utility model is realized the relative position adjusting by the NN type planet gear speed reducer with small tooth difference of annular generator, annular.The utility model utilizes the annular space of oil jacket annular space, under the prerequisite that does not influence the parent tube liquid flow path, by presetting cable, can realize passing through and sealing of annular space inner cable and optical cable, relative position step-less adjustment by in-house of cable realization, realize the conversion of rotation-rectilinear motion, thereby the rotation of motor is become compression and the stretching of final slips and packing element, thereby realize setting the reconciliation sealed compression packer.
The utility model only needs a control cable both can connect several compression packers, and can set as required, any one packer that deblocking or adjusting connect.
The required ground installation of the utility model is simple, only need power and both can work.Therefore, the related automatically controlled compression packer of the utility model can provide new control packing tool assembly for stratified operation technology, can realize the setting of ground remote control, deblocking and adjusting operation, the data feedback accurately, technology is flexible, intelligent degree height can replenish as the useful of existing control tool.
The utility model all electronic, simple in structure, easy to maintenance, can realize the stepless position adjustments of down-hole slips.
Description of drawings
Fig. 1 is the internal construction schematic diagram according to the automatically controlled compression packer in down-hole of the utility model embodiment;
Fig. 2 is the structure for amplifying on Fig. 1 top;
Fig. 3 is the structure for amplifying of Fig. 1 lower part.
The drawing reference numeral explanation:
1, goes up parent tube, 2, top connection, 3, motor stator; 4, rotor, 5, NN type fewer differential teeth planetary slows down 6, leading screw, 7, interior protection tin; 8, upper bush; 9, transmission nut cover (nut), 10, lower sleeve, 11, the parent tube connector; 12, outer protection tube 13, first pressure ring 20, second pressure ring; 14, following parent tube, 15, packing element, 7, packing element 19, packing element; 16, spacer ring; 18, spacer ring, 21, go up voussoir, 22, the slips sleeve; 23, bi-directional slip; 24, spring, 25, lower wedge block, 26, adjust baffle ring
The specific embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast the description of drawings specific embodiment of the present utility model.
As shown in Figure 1, the utility model provides a kind of down-hole automatically controlled compression packer, and the automatically controlled compression packer in described down-hole comprises: parent tube and be set in motor, deceleration device, transmission device and packing device on the described parent tube.
Described motor comprises: the motor output shaft of annular, i.e. and hollow shaft (not shown), the motor output shaft of described annular can be set on the described parent tube rotationally.Described motor for example is annular generator or annular permanent magnet synchronous motor.
Described deceleration device comprises: the NN type planet gear speed reducer with small tooth difference 5 of annular, described NN type planet gear speed reducer with small tooth difference 5 comprises: power shaft and the output shaft (not shown) of annular.The power shaft of described NN type planet gear speed reducer with small tooth difference is connected with the motor output shaft of described annular.Each internal gear and external gear in the NN type planet gear speed reducer with small tooth difference are annular, NN type planet gear speed reducer with small tooth difference is realized deceleration and increases the moment of torsion of transmission that structure and the operating principle of NN type planet gear speed reducer with small tooth difference can be with reference to prior aries.
Described transmission device comprises: can be set in the screwed pipe 6 that described parent tube is outer and be connected with the output shaft of described NN type planet gear speed reducer with small tooth difference rotationally; Transmission nut cover 9, sheathed described screwed pipe 6 outer also described relatively parent tubes 2 move up and down by being spirally connected; Lower sleeve 10 is screwed onto the lower end of described transmission nut cover 9 and is set in described transmission nut and overlaps outside 9.Screwed pipe 6 is equivalent to the leading screw of tubulose for having externally threaded pipe.Transmission nut cover 9, sheathed described screwed pipe 6 outer also described relatively parent tubes move up and down by being spirally connected.Transmission device by annular structure and worm drive and transmission device in being threaded of each parts, realized rotatablely moving of deceleration device is converted to moving axially of transmission nut cover, because the transmission nut cover is axially movable about realizing by the screw thread transmission, the screw thread transmission is continuous continual, thereby, can realize the stepless position adjustments of lower sleeve 10.
Described packing device comprises: with described lower sleeve 10 in abutting connection with and be positioned at first pressure ring 13 and second pressure ring 20 of described lower sleeve 10 belows successively, described first pressure ring 13 and second pressure ring, 20 compartment of terrains are set on the described parent tube; Packing element is set on the described parent tube and between described first pressure ring 13 and second pressure ring 20; The slips external member is set on the described parent tube and is positioned under described second pressure ring 20, and described slips external member comprises: successively on below described second pressure ring 20 voussoir 21, lower wedge block 25 and on described slips 23 between voussoir 21 and the lower wedge block 24.
The utility model is realized the relative position adjusting by the NN type planet gear speed reducer with small tooth difference of annular generator, annular.The utility model utilizes the annular space of oil jacket annular space, under the prerequisite that does not influence the parent tube liquid flow path, by presetting cable, can realize the passing through and sealing of annular space inner cable and optical cable (cable and optical cable are arranged in the annular space outside the parent tube), relative position step-less adjustment by in-house of cable realization, realize the conversion of rotation-rectilinear motion, thereby the rotation of motor is become compression and the stretching of final slips and packing element, thereby realize setting the reconciliation sealed compression packer.Motor of the present utility model produces by driven by power and rotatablely moves, motor output shaft by annular is transferred to rotation on the eccentric drive shaft of annular of deceleration device, realize the moment of torsion of deceleration and increase transmission by NN type planet gear speed reducer with small tooth difference, by the turning moment of transmission device acceptance from deceleration device, deceleration device drives the screwed pipe rotation, transmission nut cover is owing to be limited to rotate, thus can only move vertically, and drive up and down sliding sleeve and realize continuous rectilinear motion.
Further, described motor also comprises: the rotor 4 of annular and the stator 3 that is set in outside the described rotor 4.Described rotor 4 is set in outside the described parent tube, is connected with the motor output shaft of annular.For example, rotor 4 can be fixed by radial screw with the motor output shaft of annular.Stator 3 is arranged on outside the rotor 4, is convenient to motor coil is set.
Further, the motor output shaft of described annular is eccentric tube, and the power shaft of described NN type planet gear speed reducer with small tooth difference is integral structure with the motor output shaft of annular.The eccentric drive shaft and the motor output shaft that are deceleration device are eccentric tube, because deceleration device adopts eccentric drive shaft, could guarantee the normal operation of NN type planet gear speed reducer with small tooth difference.In addition, the eccentric drive shaft of annular can be the split structure with the motor output shaft of annular, and motor output shaft can be for symmetry, uninfluenced, and uninfluenced motor output shaft can form with eccentric drive shaft assembling back and be connected.The utility model unites two into one the eccentric drive shaft of motor output shaft and deceleration device, be made of one the formula eccentric structure, the combination and unification of the rotating shaft of the rotating shaft of motor and deceleration device have been realized, not only having reduced the rotating shaft of motor and the rotating shaft of deceleration device is the installation time of dividing body structure, also reduced when NN type planet gear speed reducer with small tooth difference is positioned at the down-hole and produced the danger of rupturing with the motor junction greatly because eccentric drive shaft is stressed, and saving simple in structure space, adapt to the down-hole narrow space.
As Fig. 2, further, described parent tube comprises: by last parent tube 1 and the following parent tube 14 that parent tube connector 11 is threaded, described first pressure ring 13 is arranged on the described parent tube 14 down, and described screwed pipe 6 is arranged on described going up on the parent tube 1.The installation successively of motor, deceleration device, transmission device and packing device is convenient in the split setting of parent tube.Further, the automatically controlled compression packer in described down-hole also comprises: be socketed in described top connection 2 of going up parent tube 1 top.Top connection 2 is tubular, with external structure by being threaded, be fixed part.
Further, as Fig. 2, the automatically controlled compression packer in described down-hole also comprises: upper bush 8 is screwed onto the upper end of described transmission nut cover 9 and is set in described transmission nut and overlaps outside 9; Outer protection tube 12 is set in outside described NN type planet gear speed reducer with small tooth difference 5, described upper bush 8 and the described lower sleeve 10, and with the upper end adjacency of described first pressure ring 13.Can realize sealing and defencive function by upper bush 8 and outer protection tube 12.The automatically controlled compression packer in described down-hole can also comprise: interior protection tube 7 is connected by gas thread with top connection 1 and seals; Nut 9 and leading screw 6 logical screw pairs are connected, and are connected by spline with outer protection tins 12; Upper bush 8 and nut (transmission nut cover) 9 be by being threaded and using the sealing of O RunddichtringO, and by the O RunddichtringO realize with interior protection tins 7 between the sealing in gap.
Further, as Fig. 3, the automatically controlled compression packer in described down-hole also comprises: be arranged on the described down parent tube 14 by being threaded and abut against adjustment baffle ring 26 under the described lower wedge block 25.Like this, can adjust the position of lower wedge block 25, thereby adjust setting and deblocking of slips.
Further, as Fig. 3, described slips external member also comprises: be supported on described a plurality of slip sleeves 22 of going up on voussoir 21 and the lower wedge block 25 respectively, in the grooved space that described slips 23 embeds on the described slip sleeve 22, thus realize setting closely and firmly.
Further, described slips external member also comprises: be arranged on the spring 24 between described slips 23 and the described slip sleeve 22.Like this, can realize preferably setting and deblocking by elastic reaction.
Further, described packing element is respectively branch sleeve 15, divides sleeve 17 and divides sleeve 19 for being set on the described parent tube 14 down successively and a plurality of minutes sleeves that arrange at interval, and comparatively stable realization sets and deblocking.
Except foregoing description, enumerate more specifically embodiment and a course of work thereof below again:
As shown in Figure 1 to Figure 3; the automatically controlled compression packer in down-hole of the present utility model comprises: go up 2, one motor stators 3 of 1, one top connection of parent tube for one; a rotor 4; protection tube 7 in 6, one of 5, one screwed pipes of a NN type planetary speed reducer with small tooth number difference; a upper bush 8; 10, one parent tube connectors 11 of 9, one lower sleeves of a nut; an outer protection tube 12; two pressure rings 13; 20; 14, three packing elements of a following parent tube are respectively branch packing element 15; divide packing element 17; divide packing element 19; two spacer rings; 18, one of spacer ring 16 and spacer rings are gone up 21, one slips sleeves 22 of voussoir; six bi-directional slips 23; 25, one of 24, one lower wedge blocks of six springs are adjusted baffle ring 26.
Its annexation is: top connection 2 is connected by gas thread with last parent tube 1 and seals, and is fixed part; Motor stator 3 is contained in the top connection 2, and is affixed by screw and top connection 2, is fixed part; Rotor 4 is affixed with NN type planetary speed reducer with small tooth number difference 5 power shafts, and power shaft rotates around parent tube with rotor 4; Output shaft and the screwed pipe 6 of NN type planetary speed reducer with small tooth number difference 5 are affixed, and screwed pipe 6 rotates around parent tube with output shaft; In protection tube 7 be connected by gas thread with top connection 1 and seal; Nut 9 and screwed pipe 6 logical screw pairs are connected, and are connected by spline with outer protection tins 12; Upper bush 8 and nut 9 be by being threaded and using the sealing of O RunddichtringO, and by the O RunddichtringO realize with interior protection tins 7 between the sealing in gap; Lower sleeve 10 and nut 9 be by being threaded and using the sealing of O RunddichtringO, and by the O RunddichtringO realize and parent tube joint 11 between the sealing in gap; Parent tube joint 11 is connected by gas thread with last parent tube 1 lower end and seals, and is connected by gas thread with following parent tube 14 upper ends and seals; Outer protection tube 12 is connected by gas thread with interior protection tube 7 and seals; Two pressure rings 13,20, for minute packing element 15, divide packing element 17, divide packing element 19 and spacer ring 16, spacer ring 18 to be enclosed within down on the parent tube 14 according to order illustrated, pressure ring 13 and lower sleeve 10 are close to; Last voussoir 21 small ends are enclosed within down downwards on the parent tube 14, and are close to pressure ring 20; In six grooved spaces that six bi-directional slips 23 embed on the slip sleeves 22, and be enclosed within on the parent tube 14, be close to last voussoir 21; Lower wedge block 25 small ends upwards are enclosed within down on the parent tube 14, and are close to slips; Slip sleeve 22 two ends are supported by last voussoir 21 big ends and lower wedge block 25 big ends, can be mobile vertically with slips; The two ends of six springs 24 connect slips 23 and slip sleeve 22 respectively, adjust ring 26 and following parent tube 14 by being threaded and fixing.
Its movement relation is: rotor 4 relatively-stationary motor stators 3 produce and rotatablely move, drive the power shaft rotation of NN type planetary speed reducer with small tooth number difference 5, after slowing down, output shaft output low speed and large torque by reducer 5 rotatablely moves, and drive screwed pipe 6 rotates, the nut that links to each other with screwed pipe 69 is owing to be subjected to the constraint of spline pair, and will rotatablely move is converted into rectilinear motion, and drives upper bush 8 and lower sleeve 10 moves.When packer setting, pressure ring 13 is subjected to the downward thrust of lower sleeve 10, compression divides packing element 15, divides packing element 17, divides packing element 19, and thrust is passed to voussoir 21, because lower wedge block 25 can not move down under the restriction of adjusting ring 26, slips stretches out in the groove by slip sleeve 22 under the effect of wedge surface, and simultaneously slip sleeve 22 moves downward with slips, realizes setting.When the packer deblocking, lower sleeve 10 moves upward, and packing element recovers under the elastic reaction of self, and the thrust between voussoir reduces, and slips is regained under spring 24 elastic force effects, realizes deblocking.Adjust ring 26 in order to adjust end play.
The utility model can provide various, packing instrument more flexibly for the laminated distributor under well operation, it can connect several compression packers of down-hole by an armored cable, realize setting and deblocking of any one packer, realize that simultaneously presetting of other armored cables, optical cable pass through.The automatically controlled compression packer in related down-hole is operated by ground control system, can directly obtain the setting force of some packers, adjusts packing pressure flexibly, and setting or the deblocking state from ground any one packer of Long-distance Control.The automatically controlled compression packer in related down-hole can be used as the intelligent packing module in intelligent completion system, intelligent seperated layer water injection system, delaminating multisection frac system or other stratified operation systems.
Realize setting compression packer with deblocking than other hydraulic pressure, handling tubing string or rotation tubing string, advantage of the present utility model is mainly reflected in: 1. all electronic, and simple in structure, easy to maintenance; 2. can realize stepless position adjustments, thereby realize continuous setting force adjusting; 3. compression position and the setting force of packer slip and packing element be can obtain easily from ground, thereby setting force and packing pressure reduction regulated more flexibly; 4. only need a control cable both can connect several compression packers, and can set as required, any one packer that deblocking or adjusting connect; 5. by presetting cable, can realize passing through and sealing of annular space inner cable and optical cable; 6. ground installation is simple, only need power and both can work.Therefore, the related automatically controlled compression packer of the utility model can provide new control packing tool assembly for stratified operation technology, can realize the setting of ground remote control, deblocking and adjusting operation, the data feedback accurately, technology is flexible, intelligent degree height can replenish as the useful of existing control tool.
The above only is the schematic specific embodiment of the utility model, is not in order to limit scope of the present utility model.For each ingredient of the present utility model can make up under the condition of not conflicting mutually; any those skilled in the art; the equivalent variations of having done under the prerequisite that does not break away from design of the present utility model and principle and modification all should belong to the scope that the utility model is protected.
Claims (10)
1. the automatically controlled compression packer in down-hole is characterized in that, the automatically controlled compression packer in described down-hole comprises: parent tube and be set in motor, deceleration device, transmission device and packing device on the described parent tube;
Described motor comprises: the motor output shaft of annular, and the motor output shaft of described annular can be set on the described parent tube rotationally;
Described deceleration device comprises: the NN type planet gear speed reducer with small tooth difference (5) of annular, and described NN type planet gear speed reducer with small tooth difference (5) comprising: power shaft and the output shaft of annular;
The power shaft of described NN type planet gear speed reducer with small tooth difference is connected with the motor output shaft of described annular;
Described transmission device comprises: can be set in the screwed pipe (6) that described parent tube is outer and be connected with the output shaft of described NN type planet gear speed reducer with small tooth difference rotationally; Transmission nut cover (9) moves up and down by the outer also described relatively parent tube (2) of the sheathed described screwed pipe (6) that is spirally connected; Lower sleeve (10) is screwed onto the lower end of described transmission nut cover (9) and is set in outside the described transmission nut cover (9);
Described packing device comprises: with described lower sleeve (10) in abutting connection with and be positioned at first pressure ring (13) and second pressure ring (20) of described lower sleeve (10) below successively, described first pressure ring (13) and second pressure ring (20) compartment of terrain are set on the described parent tube; Packing element, be set on the described parent tube and be positioned at described first pressure ring (13) and second pressure ring (20) between; The slips external member, be set on the described parent tube and be positioned under described second pressure ring (20), described slips external member comprises: be positioned at last voussoir (21), the lower wedge block (25) of described second pressure ring (20) below successively and be positioned at described on slips (23) between voussoir (21) and the lower wedge block (24).
2. the automatically controlled compression packer in down-hole as claimed in claim 1 is characterized in that, described motor also comprises: the rotor of annular and the stator that is set in outside the described rotor, described rotor is set in outside the described parent tube.
3. the automatically controlled compression packer in down-hole as claimed in claim 1 is characterized in that, the motor output shaft of described annular is eccentric tube, and the power shaft of described NN type planet gear speed reducer with small tooth difference is integral structure with the motor output shaft of annular.
4. the automatically controlled compression packer in down-hole as claimed in claim 1, it is characterized in that, described parent tube comprises: the last parent tube (1) and the following parent tube (14) that are threaded by parent tube connector (11), described first pressure ring (13) is arranged on the described parent tube (14) down, and described screwed pipe (6) is arranged on described going up on the parent tube (1).
5. the automatically controlled compression packer in down-hole as claimed in claim 1 is characterized in that, the automatically controlled compression packer in described down-hole also comprises: upper bush (8) is screwed onto the upper end of described transmission nut cover (9) and is set in outside the described transmission nut cover (9); The outer tube (12) of protecting is set in outside described NN type planet gear speed reducer with small tooth difference (5), described upper bush (8) and the described lower sleeve (10) the upper end adjacency of described outer protection tube (12) and described first pressure ring (13).
6. the automatically controlled compression packer in down-hole as claimed in claim 4, it is characterized in that the automatically controlled compression packer in described down-hole also comprises: be arranged on described down parent tube (14) by being threaded and go up and abut against adjustment baffle ring (26) under the described lower wedge block (25).
7. the automatically controlled compression packer in down-hole as claimed in claim 1, it is characterized in that, described slips external member also comprises: be supported on described a plurality of slip sleeves (22) of going up on voussoir (21) and the lower wedge block (25) respectively, described slips (23) embeds in the grooved space on the described slip sleeve (22).
8. the automatically controlled compression packer in down-hole as claimed in claim 7 is characterized in that, described slips external member also comprises: be arranged on the spring (24) between described slips (23) and the described slip sleeve (22).
9. the automatically controlled compression packer in down-hole as claimed in claim 4 is characterized in that, described packing element is for being set in a plurality of minutes sleeves that described parent tube (14) is down gone up and arranged at interval successively.
10. the automatically controlled compression packer in down-hole as claimed in claim 4 is characterized in that, the automatically controlled compression packer in described down-hole also comprises: be socketed in described top connection (2) of going up parent tube (1) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220640788 CN203050608U (en) | 2012-11-28 | 2012-11-28 | Underground electric control compression packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220640788 CN203050608U (en) | 2012-11-28 | 2012-11-28 | Underground electric control compression packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203050608U true CN203050608U (en) | 2013-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220640788 Expired - Fee Related CN203050608U (en) | 2012-11-28 | 2012-11-28 | Underground electric control compression packer |
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| Country | Link |
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| CN (1) | CN203050608U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979477A (en) * | 2012-11-28 | 2013-03-20 | 中国石油天然气股份有限公司 | Underground electric control compression packer |
| CN105909205A (en) * | 2016-06-30 | 2016-08-31 | 河南科技大学 | Novel active hydraulic control packer |
| CN105927182A (en) * | 2016-06-30 | 2016-09-07 | 河南科技大学 | Novel packer based on ambient pressure |
| CN111691857A (en) * | 2020-06-10 | 2020-09-22 | 中国石油天然气股份有限公司 | Load safety unloading device of oil pumping unit |
-
2012
- 2012-11-28 CN CN 201220640788 patent/CN203050608U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979477A (en) * | 2012-11-28 | 2013-03-20 | 中国石油天然气股份有限公司 | Underground electric control compression packer |
| CN102979477B (en) * | 2012-11-28 | 2015-05-06 | 中国石油天然气股份有限公司 | Underground electric control compression packer |
| CN105909205A (en) * | 2016-06-30 | 2016-08-31 | 河南科技大学 | Novel active hydraulic control packer |
| CN105927182A (en) * | 2016-06-30 | 2016-09-07 | 河南科技大学 | Novel packer based on ambient pressure |
| CN105909205B (en) * | 2016-06-30 | 2018-04-10 | 河南科技大学 | A kind of New Active hydraulic control packer |
| CN105927182B (en) * | 2016-06-30 | 2018-09-25 | 河南科技大学 | A kind of novel packer based on environmental pressure |
| CN111691857A (en) * | 2020-06-10 | 2020-09-22 | 中国石油天然气股份有限公司 | Load safety unloading device of oil pumping unit |
| CN111691857B (en) * | 2020-06-10 | 2022-07-08 | 中国石油天然气股份有限公司 | Load safety unloading device of oil pumping unit |
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