CN103470210B - The anti-set packer of blocking piece type - Google Patents
The anti-set packer of blocking piece type Download PDFInfo
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- CN103470210B CN103470210B CN201310424039.1A CN201310424039A CN103470210B CN 103470210 B CN103470210 B CN 103470210B CN 201310424039 A CN201310424039 A CN 201310424039A CN 103470210 B CN103470210 B CN 103470210B
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Abstract
<b> the present invention relates to the packer technology field that the solid completion practice of oil gas field uses, it is the anti-set packer of a kind of blocking piece type, comprise central tube, upper interstage sleeve, packing element packing device, positioning sleeve, locating piece, packing element shear pin and fluid pressure drive device, the upper outside of central tube is installed with interstage sleeve; Positioning sleeve is fixed with by packing element shear pin outside the middle part of central tube; Be set with outside central tube between upper interstage sleeve and positioning sleeve and after pressurized, expanded radially can make the packing element packing device of well packing.Reasonable and compact in structure of the present invention; easy to use; it by arranging locating piece on positioning sleeve, and arrange urceolus building the pressure outside cylinder, can realize the position limitation protection to positioning sleeve and the cylinder that builds the pressure; improve it to the compliance of various hole condition and reliability; avoid it setting in advance, increase the different long and short packing element of hardness with the use of, and in long packing element type, increase support ring and pushing out ring sealing ring; its packing ability can be improved, avoid altering a layer problem.</b>
Description
Technical field
the present invention relates to the packer technology field that the solid completion practice of oil gas field uses, is the anti-set packer of a kind of blocking piece type.
Background technology
in the work progresss such as oilfield well completion, well workover, stimulation work, often need to use packer on the borehole wall, set packing stratum, to realize the objects such as layer and section exploitation, control water blocking water, reservoir reconstruction.And often there is the problem of the following aspects in the packer of routine: 1. complex structure, the various processing cost that causes of parts are high, and global reliability is low, especially for irregular borehole wall bad adaptability, easily causes setting in advance when abnormality in well; 2. packing scarce capacity, when to oil-bearing stratum flooding supercharging, easily causes altering layer, thus reduces the benefit of water filling.These problems will bring inconvenience to execute-in-place, even have influence on carrying out smoothly of this well completion practice.
Summary of the invention
the invention provides the anti-set packer of a kind of blocking piece type, overcome the deficiency of above-mentioned prior art, it effectively can solve existing packer poor reliability, easily setting in advance problem.
technical scheme of the present invention is realized by following measures: the anti-set packer of a kind of blocking piece type, comprise central tube, upper interstage sleeve, packing element packing device, positioning sleeve, locating piece, packing element shear pin and fluid pressure drive device, the upper outside of central tube is installed with interstage sleeve; Positioning sleeve is fixed with by packing element shear pin outside the middle part of central tube; Be set with outside central tube between upper interstage sleeve and positioning sleeve and after pressurized, expanded radially can make the packing element packing device of well packing; The lower outside of central tube is fixed with and can promotes the up thus extruding packing element packing device of positioning sleeve and can extrude and unclamp the fluid pressure drive device of locating piece; The lower circumference of positioning sleeve is distributed with the positioning through hole being no less than, and the central tube of corresponding positioning through hole position is provided with locating slot, and locating piece passes positioning through hole and is positioned at locating slot by the extruding of fluid pressure drive device; The top and bottom of central tube are respectively arranged with internal thread or external screw thread.
here is the further optimization and/or improvements to foregoing invention technical scheme:
above-mentioned fluid pressure drive device can comprise build the pressure cylinder and urceolus, the upper inner of cylinder of building the pressure is provided with interior land, the cylinder that builds the pressure is fixed on the lower outside of central tube by the cylindrical shell shear pin being positioned at land position, be provided with inside a upper end that builds the pressure of corresponding positioning through hole position and be pressed on locating piece and the positioning boss be positioned at above land, the build the pressure outside of cylinder is set with urceolus, and bottom and the central tube of urceolus are fixed together; In the middle part of the positioning sleeve of corresponding positioning through hole top position, there is the first boss be positioned at above the cylinder that builds the pressure in outside, and packing element shear pin is positioned at the middle part of the first boss, and the top of urceolus is sleeved on outside the first boss; The positioning sleeve upper outside of corresponding first boss top position has diameter to be greater than the second boss of the first boss diameter, and the bottom surface seat of the second boss is in urceolus top; Be positioned at central tube below cylindrical shell shear pin and the cylinder that builds the pressure be respectively arranged with the central tube inlet opening and an inlet opening that builds the pressure that can interconnect; The lower inside of urceolus has the sealing land be positioned at below the cylinder that builds the pressure, between outside the cylinder that builds the pressure in above central tube inlet opening between land and central tube, above an inlet opening that builds the pressure and inside urceolus, to seal inside land and outside central tube between be provided with sealing ring.
the lower outside of the above-mentioned cylinder that builds the pressure can be provided with the groove be positioned at below cylindrical shell shear pin.
fixed cover can be had outside the above-mentioned central tube be positioned at below the cylinder that builds the pressure, the lower outside of urceolus and the upper inner of fixed cover are threaded connection and are fixed together, the lower inside of fixed cover is provided with the inner convex platform be sleeved on outside central tube, is fixed on the spacing ring on central tube lateral wall between the bottom of urceolus and the top of inner convex platform inside being provided with.
lock ring can be provided with between outside the lower inside of the above-mentioned cylinder that builds the pressure and central tube, be threaded connection outside the lower inside of cylinder of building the pressure and lock ring and be fixed together, lock ring there is axially open, be provided with in axially open at least one inside be fixed on central tube anti-rotation nail, the inwall of lock ring is distributed with retaining pawl, the central tube arranged outside of corresponding lock ring moving travel position has the cylindrical shell pawl matched with retaining pawl.
above-mentioned packing element packing device can comprise short rubber cylinder, quantity is no less than the long packing element type of and lower short rubber cylinder; Upper short rubber cylinder, long packing element type and lower short rubber cylinder are sleeved on outside central tube from top to bottom successively, are fixed with support ring, the inwall of support ring have pushing out ring seal groove, be provided with pushing out ring sealing ring in pushing out ring seal groove in the middle part of the inwall of long packing element type.
the quantity of above-mentioned long packing element type can be two.
the above-mentioned top at upper short rubber cylinder, between short rubber cylinder and long packing element type, between adjacent long packing element type, between long packing element type and lower short rubber cylinder, the bottom of lower short rubber cylinder all can be provided with the baffle ring be sleeved on outside central tube.
the lower end outside of above-mentioned upper interstage sleeve can be fixed with outer lug boss, lower outer lug boss is fixed with outside the upper end of positioning sleeve, in upper mounting groove between upper outer lug boss and central tube of the baffle ring top at upper short rubber cylinder top, in the lower mounting groove of the baffle ring bottom bottom lower short rubber cylinder between lower outside boss and central tube.
reasonable and compact in structure of the present invention; easy to use; it by arranging locating piece on positioning sleeve, and arrange urceolus building the pressure outside cylinder, can realize the position limitation protection to positioning sleeve and the cylinder that builds the pressure; improve it to the compliance of various hole condition and reliability; avoid it setting in advance, increase the different long and short packing element of hardness with the use of, and in long packing element type, increase support ring and pushing out ring sealing ring; its packing ability can be improved, avoid altering a layer problem.
Accompanying drawing explanation
accompanying drawing 1 is that the master of preferred embodiment looks half section structural representation.
accompanying drawing 2 is the partial enlargement structural representation of accompanying drawing 1 at D place.
accompanying drawing 3 analyses and observe structure for amplifying schematic diagram at A-A place for accompanying drawing 1.
accompanying drawing 4 analyses and observe structure for amplifying schematic diagram at B-B place for accompanying drawing 1.
coding in accompanying drawing is respectively: cylinder centered by 1, 2 is upper interstage sleeve, 3 is positioning sleeve, 4 is locating piece, 5 is packing element shear pin, 6 is positioning through hole, 7 is locating slot, 8 is the cylinder that builds the pressure, 9 is urceolus, 10 is cylindrical shell shear pin, 11 is positioning boss, cylinder inlet opening centered by 12, 13 is an inlet opening that builds the pressure, 14 is sealing ring, 15 is interior land, 16 is fixed cover, 17 is inner convex platform, 18 is spacing ring, 19 is lock ring, 20 is axially open, 21 is anti-rotation nail, 22 is upper short rubber cylinder, 23 is long packing element type, 24 is lower short rubber cylinder, 25 is support ring, 26 is pushing out ring sealing ring, 27 is baffle ring, 28 is upper outer lug boss, 29 is lower outer lug boss, 30 is groove.
Detailed description of the invention
the present invention by the restriction of following embodiment, can not determine concrete embodiment according to technical scheme of the present invention and actual conditions.
in the present invention, for convenience of description, the description of the relative position relation of each parts is all be described according to the Butut mode of Figure of description 1, as: the position relationship of forward and backward, upper and lower, left and right etc. determines according to the Butut direction of Figure of description 1.
below in conjunction with embodiment and accompanying drawing, the invention will be further described:
as shown in accompanying drawing 1,2,3,4, the anti-set packer of this blocking piece type comprises central tube 1, upper interstage sleeve 2, packing element packing device, positioning sleeve 3, locating piece 4, packing element shear pin 5 and fluid pressure drive device, and the upper outside of central tube 1 is installed with interstage sleeve 2; Positioning sleeve 3 is fixed with by packing element shear pin 5 outside the middle part of central tube 1; Be set with outside central tube 1 between upper interstage sleeve 2 and positioning sleeve 3 and after pressurized, expanded radially can make the packing element packing device of well packing; The lower outside of central tube 1 is fixed with and can promotes the up thus extruding packing element packing device of positioning sleeve 3 and can extrude and unclamp the fluid pressure drive device of locating piece 4; The lower circumference of positioning sleeve 3 is distributed with the positioning through hole 6 being no less than, and the central tube 1 of corresponding positioning through hole 6 position is provided with locating slot 7, and locating piece 4 passes positioning through hole 6 and is positioned at locating slot 7 by the extruding of fluid pressure drive device; The top and bottom of central tube 1 are respectively arranged with internal thread or external screw thread.In use, by building the pressure to fluid pressure drive device, promote the up thus extruding packing element packing device of positioning sleeve 3, expanded radially after packing element packing device pressurized thus packing well.In this process, by the position-limiting action of locating piece 4 pairs of positioning sleeves 3, it can be avoided setting in advance because of external force in the process of G.I.H, thus improve its setting reliability, by the operation that builds the pressure, make Pressure Actuated Device moves and extrude plug packing device and make well packing, convenient and swift.
according to actual needs, the anti-set packer of above-mentioned blocking piece type can be made further optimization and/or improvements:
as shown in accompanying drawing 1,2,3,4, fluid pressure drive device comprises build the pressure cylinder 8 and urceolus 9, the upper inner of cylinder 8 of building the pressure is provided with interior land 15, the cylinder 8 that builds the pressure is fixed on the lower outside of central tube 1 by the cylindrical shell shear pin 10 being positioned at land 15 position, be provided with inside cylinder 8 upper end that builds the pressure of corresponding positioning through hole 6 position and be pressed on locating piece 4 and the positioning boss 11 be positioned at above land 15, the build the pressure outside of cylinder 8 is set with urceolus 9, and bottom and the central tube 1 of urceolus 9 are fixed together; In the middle part of the positioning sleeve 3 of corresponding positioning through hole 6 top position, there is the first boss be positioned at above the cylinder 8 that builds the pressure in outside, and packing element shear pin 5 is positioned at the middle part of the first boss, and the top of urceolus 9 is sleeved on outside the first boss; Positioning sleeve 3 upper outside of corresponding first boss top position has diameter to be greater than the second boss of the first boss diameter, and the bottom surface seat of the second boss is in urceolus 9 top; Be positioned at the central tube inlet opening 12 and the inlet opening 13 that builds the pressure that central tube below cylindrical shell shear pin 10 1 and the cylinder 8 that builds the pressure are respectively arranged with and can interconnect; The lower inside of urceolus 9 has the sealing land be positioned at below the cylinder 8 that builds the pressure, between outside the cylinder 8 that builds the pressure in above central tube inlet opening 12 between land 15 and central tube 1, above the inlet opening 13 that builds the pressure and inside urceolus 9, to seal inside land and outside central tube 1 between be provided with sealing ring 14.Arrange urceolus 9, can realize the protection to the cylinder 8 that builds the pressure, cylinder 8 of avoiding building the pressure moves because of external force in the process of G.I.H, thus guarantees its positioning action to locating hole.The gap surrounded between inside sealing ring 14 and urceolus 9 and outside central tube 1 will form hydraulic cavities, in use, high-pressure fluid enters in hydraulic cavities by central tube inlet opening 12 and the inlet opening 13 that builds the pressure successively, after the liquid in hydraulic cavities reaches certain pressure, the cylinder 8 that builds the pressure will be subject to thrust upwards, thus cut off cylindrical shell shear pin 10 and start up, when above positioning boss 11 moves to locating piece 4, extruding force disappearance that locating piece 4 is subject to due to it will loosen, cause positioning sleeve 3 can cut off packing element shear pin 5 when being subject to building the pressure the thrust of cylinder 8, and it is up under the effect of the cylinder 8 that builds the pressure, thus extruding packing element packing device.
as shown in Figure 1, the lower outside of cylinder 8 of building the pressure is provided with the groove 30 be positioned at below cylindrical shell shear pin 10.Groove 30 can make to build the pressure outside cylinder 8 and form step in this position, can be convenient to high-pressure fluid thus by exerting pressure to cylindrical shell shear pin 10 after central tube inlet opening 12 and the inlet opening 13 that builds the pressure.
as shown in Figure 1, be positioned at outside the central tube 1 below the cylinder 8 that builds the pressure and have fixed cover 16, the lower outside of urceolus 9 and the upper inner of fixed cover 16 are threaded connection and are fixed together, the lower inside of fixed cover 16 is provided with the inner convex platform 17 be sleeved on outside central tube 1, is fixed on the spacing ring 18 on central tube 1 lateral wall between the bottom of urceolus 9 and the top of inner convex platform 17 inside being provided with.
as shown in accompanying drawing 1,4, lock ring 19 is provided with between outside the lower inside of cylinder 8 of building the pressure and central tube 1, be threaded connection outside the lower inside of cylinder 8 of building the pressure and lock ring 19 and be fixed together, lock ring 19 there is axially open 20, be provided with in axially open 20 at least one inside be fixed on central tube 1 anti-rotation nail 21, the inwall of lock ring 19 is distributed with retaining pawl, central tube 1 arranged outside of corresponding lock ring 19 moving travel position has the cylindrical shell pawl matched with retaining pawl.Retaining pawl and cylindrical shell pawl with the use of, can guarantee that it can continue after packing cut off by pin setting, by the interference of other external force in well.
as shown in Figure 1, packing element packing device comprises short rubber cylinder 22, quantity is no less than the long packing element type 23 of and lower short rubber cylinder 24; Upper short rubber cylinder 22, long packing element type 23 and lower short rubber cylinder 24 are sleeved on outside central tube 1 from top to bottom successively, are fixed with support ring 25, the inwall of support ring 25 have pushing out ring seal groove, be provided with pushing out ring sealing ring 26 in pushing out ring seal groove in the middle part of the inwall of long packing element type 23.Support ring 25 and pushing out ring sealing ring 26 can make packing element packing device still guarantee the ability of low pressure packing when meeting high pressure packing; Long and short packing element with the use of its packing scarce capacity can be solved, easily alter the problems such as layer, make it have good setting effect.According to demand, the hardness of upper short rubber cylinder 22 and lower short rubber cylinder 24 is all higher than long packing element type 23.
as shown in Figure 1, the quantity of long packing element type 23 is two.
as shown in accompanying drawing 1,2, the top of upper short rubber cylinder 22, between short rubber cylinder 22 and long packing element type 23, between adjacent long packing element type 23, between long packing element type 23 and lower short rubber cylinder 24, the bottom of lower short rubber cylinder 24 is provided with the baffle ring 27 be sleeved on outside central tube 1.Packing element is when being squeezed, and baffle ring 27 can avoid it to occur wavy distortion.
as shown in accompanying drawing 1,2, the lower end outside of upper interstage sleeve 2 is fixed with outer lug boss 28, lower outer lug boss 29 is fixed with outside the upper end of positioning sleeve 3, in upper mounting groove between upper outer lug boss 28 and central tube 1 of baffle ring 27 top at upper short rubber cylinder 22 top, in the lower mounting groove of baffle ring 27 bottom bottom lower short rubber cylinder 24 between lower outside boss 29 and central tube 1.
above technical characteristic constitutes most preferred embodiment of the present invention, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
Claims (37)
1. the anti-set packer of blocking piece type, it is characterized in that comprising central tube, upper interstage sleeve, packing element packing device, positioning sleeve, locating piece, packing element shear pin and fluid pressure drive device, the upper outside of central tube is installed with interstage sleeve; Positioning sleeve is fixed with by packing element shear pin outside the middle part of central tube; Be set with outside central tube between upper interstage sleeve and positioning sleeve and after pressurized, expanded radially can make the packing element packing device of well packing; The lower outside of central tube is fixed with and can promotes the up thus extruding packing element packing device of positioning sleeve and can extrude and unclamp the fluid pressure drive device of locating piece; The lower circumference of positioning sleeve is distributed with the positioning through hole being no less than, and the central tube of corresponding positioning through hole position is provided with locating slot, and locating piece passes positioning through hole and is positioned at locating slot by the extruding of fluid pressure drive device; The top and bottom of central tube are respectively arranged with internal thread or external screw thread; Wherein: fluid pressure drive device comprises build the pressure cylinder and urceolus, the upper inner of cylinder of building the pressure is provided with interior land, the cylinder that builds the pressure is fixed on the lower outside of central tube by the cylindrical shell shear pin being positioned at land position, be provided with inside a upper end that builds the pressure of corresponding positioning through hole position and be pressed on locating piece and the positioning boss be positioned at above land, the build the pressure outside of cylinder is set with urceolus, and bottom and the central tube of urceolus are fixed together; In the middle part of the positioning sleeve of corresponding positioning through hole top position, there is the first boss be positioned at above the cylinder that builds the pressure in outside, and packing element shear pin is positioned at the middle part of the first boss, and the top of urceolus is sleeved on outside the first boss; The positioning sleeve upper outside of corresponding first boss top position has diameter to be greater than the second boss of the first boss diameter, and the bottom surface seat of the second boss is in urceolus top; Be positioned at central tube below cylindrical shell shear pin and the cylinder that builds the pressure be respectively arranged with the central tube inlet opening and an inlet opening that builds the pressure that can interconnect; The lower inside of urceolus has the sealing land be positioned at below the cylinder that builds the pressure, between outside the cylinder that builds the pressure in above central tube inlet opening between land and central tube, above an inlet opening that builds the pressure and inside urceolus, to seal inside land and outside central tube between be provided with sealing ring.
2. the anti-set packer of blocking piece type according to claim 1, the lower outside of the cylinder that it is characterized in that building the pressure is provided with the groove be positioned at below cylindrical shell shear pin.
3. the anti-set packer of blocking piece type according to claim 1 and 2, it is characterized in that being positioned at outside the central tube that builds the pressure below cylinder and have fixed cover, the lower outside of urceolus and the upper inner of fixed cover are threaded connection and are fixed together, the lower inside of fixed cover is provided with the inner convex platform be sleeved on outside central tube, is fixed on the spacing ring on central tube lateral wall between the bottom of urceolus and the top of inner convex platform inside being provided with.
4. the anti-set packer of blocking piece type according to claim 1 and 2, lock ring is provided with between it is characterized in that building the pressure outside the lower inside of cylinder and central tube, be threaded connection outside the lower inside of cylinder of building the pressure and lock ring and be fixed together, lock ring there is axially open, be provided with in axially open at least one inside be fixed on central tube anti-rotation nail, the inwall of lock ring is distributed with retaining pawl, the central tube arranged outside of corresponding lock ring moving travel position has the cylindrical shell pawl matched with retaining pawl.
5. the anti-set packer of blocking piece type according to claim 3, lock ring is provided with between it is characterized in that building the pressure outside the lower inside of cylinder and central tube, be threaded connection outside the lower inside of cylinder of building the pressure and lock ring and be fixed together, lock ring there is axially open, be provided with in axially open at least one inside be fixed on central tube anti-rotation nail, the inwall of lock ring is distributed with retaining pawl, the central tube arranged outside of corresponding lock ring moving travel position has the cylindrical shell pawl matched with retaining pawl.
6. the anti-set packer of blocking piece type according to claim 1 and 2, is characterized in that packing element packing device comprises short rubber cylinder, quantity is no less than the long packing element type of and lower short rubber cylinder; Upper short rubber cylinder, long packing element type and lower short rubber cylinder are sleeved on outside central tube from top to bottom successively, are fixed with support ring, the inwall of support ring have pushing out ring seal groove, be provided with pushing out ring sealing ring in pushing out ring seal groove in the middle part of the inwall of long packing element type.
7. the anti-set packer of blocking piece type according to claim 3, is characterized in that packing element packing device comprises short rubber cylinder, quantity is no less than the long packing element type of and lower short rubber cylinder; Upper short rubber cylinder, long packing element type and lower short rubber cylinder are sleeved on outside central tube from top to bottom successively, are fixed with support ring, the inwall of support ring have pushing out ring seal groove, be provided with pushing out ring sealing ring in pushing out ring seal groove in the middle part of the inwall of long packing element type.
8. the anti-set packer of blocking piece type according to claim 4, is characterized in that packing element packing device comprises short rubber cylinder, quantity is no less than the long packing element type of and lower short rubber cylinder; Upper short rubber cylinder, long packing element type and lower short rubber cylinder are sleeved on outside central tube from top to bottom successively, are fixed with support ring, the inwall of support ring have pushing out ring seal groove, be provided with pushing out ring sealing ring in pushing out ring seal groove in the middle part of the inwall of long packing element type.
9. the anti-set packer of blocking piece type according to claim 5, is characterized in that packing element packing device comprises short rubber cylinder, quantity is no less than the long packing element type of and lower short rubber cylinder; Upper short rubber cylinder, long packing element type and lower short rubber cylinder are sleeved on outside central tube from top to bottom successively, are fixed with support ring, the inwall of support ring have pushing out ring seal groove, be provided with pushing out ring sealing ring in pushing out ring seal groove in the middle part of the inwall of long packing element type.
10. the anti-set packer of blocking piece type according to claim 6, is characterized in that the quantity of long packing element type is two.
The anti-set packer of 11. blocking piece type according to claim 7, is characterized in that the quantity of long packing element type is two.
The anti-set packer of 12. blocking piece type according to claim 8, is characterized in that the quantity of long packing element type is two.
The anti-set packer of 13. blocking piece type according to claim 9, is characterized in that the quantity of long packing element type is two.
The anti-set packer of 14. blocking piece type according to claim 6, is characterized in that the top of short rubber cylinder, between upper short rubber cylinder and long packing element type, between adjacent long packing element type, between long packing element type and lower short rubber cylinder, the bottom of lower short rubber cylinder is provided with the baffle ring be sleeved on outside central tube.
The anti-set packer of 15. blocking piece type according to claim 7, is characterized in that the top of short rubber cylinder, between upper short rubber cylinder and long packing element type, between adjacent long packing element type, between long packing element type and lower short rubber cylinder, the bottom of lower short rubber cylinder is provided with the baffle ring be sleeved on outside central tube.
The anti-set packer of 16. blocking piece type according to claim 8, is characterized in that the top of short rubber cylinder, between upper short rubber cylinder and long packing element type, between adjacent long packing element type, between long packing element type and lower short rubber cylinder, the bottom of lower short rubber cylinder is provided with the baffle ring be sleeved on outside central tube.
The anti-set packer of 17. blocking piece type according to claim 9, is characterized in that the top of short rubber cylinder, between upper short rubber cylinder and long packing element type, between adjacent long packing element type, between long packing element type and lower short rubber cylinder, the bottom of lower short rubber cylinder is provided with the baffle ring be sleeved on outside central tube.
The anti-set packer of 18. blocking piece type according to claim 10, is characterized in that the top of short rubber cylinder, between upper short rubber cylinder and long packing element type, between adjacent long packing element type, between long packing element type and lower short rubber cylinder, the bottom of lower short rubber cylinder is provided with the baffle ring be sleeved on outside central tube.
The anti-set packer of 19. blocking piece type according to claim 11, is characterized in that the top of short rubber cylinder, between upper short rubber cylinder and long packing element type, between adjacent long packing element type, between long packing element type and lower short rubber cylinder, the bottom of lower short rubber cylinder is provided with the baffle ring be sleeved on outside central tube.
The anti-set packer of 20. blocking piece type according to claim 12, is characterized in that the top of short rubber cylinder, between upper short rubber cylinder and long packing element type, between adjacent long packing element type, between long packing element type and lower short rubber cylinder, the bottom of lower short rubber cylinder is provided with the baffle ring be sleeved on outside central tube.
The anti-set packer of 21. blocking piece type according to claim 13, is characterized in that the top of short rubber cylinder, between upper short rubber cylinder and long packing element type, between adjacent long packing element type, between long packing element type and lower short rubber cylinder, the bottom of lower short rubber cylinder is provided with the baffle ring be sleeved on outside central tube.
The anti-set packer of 22. blocking piece type according to claim 6, it is characterized in that the lower end outside of interstage sleeve is fixed with outer lug boss, lower outer lug boss is fixed with outside the upper end of positioning sleeve, in upper mounting groove between upper outer lug boss and central tube of the baffle ring top at upper short rubber cylinder top, in the lower mounting groove of the baffle ring bottom bottom lower short rubber cylinder between lower outside boss and central tube.
The anti-set packer of 23. blocking piece type according to claim 7, it is characterized in that the lower end outside of interstage sleeve is fixed with outer lug boss, lower outer lug boss is fixed with outside the upper end of positioning sleeve, in upper mounting groove between upper outer lug boss and central tube of the baffle ring top at upper short rubber cylinder top, in the lower mounting groove of the baffle ring bottom bottom lower short rubber cylinder between lower outside boss and central tube.
The anti-set packer of 24. blocking piece type according to claim 8, it is characterized in that the lower end outside of interstage sleeve is fixed with outer lug boss, lower outer lug boss is fixed with outside the upper end of positioning sleeve, in upper mounting groove between upper outer lug boss and central tube of the baffle ring top at upper short rubber cylinder top, in the lower mounting groove of the baffle ring bottom bottom lower short rubber cylinder between lower outside boss and central tube.
The anti-set packer of 25. blocking piece type according to claim 9, it is characterized in that the lower end outside of interstage sleeve is fixed with outer lug boss, lower outer lug boss is fixed with outside the upper end of positioning sleeve, in upper mounting groove between upper outer lug boss and central tube of the baffle ring top at upper short rubber cylinder top, in the lower mounting groove of the baffle ring bottom bottom lower short rubber cylinder between lower outside boss and central tube.
The anti-set packer of 26. blocking piece type according to claim 10, it is characterized in that the lower end outside of interstage sleeve is fixed with outer lug boss, lower outer lug boss is fixed with outside the upper end of positioning sleeve, in upper mounting groove between upper outer lug boss and central tube of the baffle ring top at upper short rubber cylinder top, in the lower mounting groove of the baffle ring bottom bottom lower short rubber cylinder between lower outside boss and central tube.
The anti-set packer of 27. blocking piece type according to claim 11, it is characterized in that the lower end outside of interstage sleeve is fixed with outer lug boss, lower outer lug boss is fixed with outside the upper end of positioning sleeve, in upper mounting groove between upper outer lug boss and central tube of the baffle ring top at upper short rubber cylinder top, in the lower mounting groove of the baffle ring bottom bottom lower short rubber cylinder between lower outside boss and central tube.
The anti-set packer of 28. blocking piece type according to claim 12, it is characterized in that the lower end outside of interstage sleeve is fixed with outer lug boss, lower outer lug boss is fixed with outside the upper end of positioning sleeve, in upper mounting groove between upper outer lug boss and central tube of the baffle ring top at upper short rubber cylinder top, in the lower mounting groove of the baffle ring bottom bottom lower short rubber cylinder between lower outside boss and central tube.
The anti-set packer of 29. blocking piece type according to claim 13, it is characterized in that the lower end outside of interstage sleeve is fixed with outer lug boss, lower outer lug boss is fixed with outside the upper end of positioning sleeve, in upper mounting groove between upper outer lug boss and central tube of the baffle ring top at upper short rubber cylinder top, in the lower mounting groove of the baffle ring bottom bottom lower short rubber cylinder between lower outside boss and central tube.
The anti-set packer of 30. blocking piece type according to claim 14, it is characterized in that the lower end outside of interstage sleeve is fixed with outer lug boss, lower outer lug boss is fixed with outside the upper end of positioning sleeve, in upper mounting groove between upper outer lug boss and central tube of the baffle ring top at upper short rubber cylinder top, in the lower mounting groove of the baffle ring bottom bottom lower short rubber cylinder between lower outside boss and central tube.
The anti-set packer of 31. blocking piece type according to claim 15, it is characterized in that the lower end outside of interstage sleeve is fixed with outer lug boss, lower outer lug boss is fixed with outside the upper end of positioning sleeve, in upper mounting groove between upper outer lug boss and central tube of the baffle ring top at upper short rubber cylinder top, in the lower mounting groove of the baffle ring bottom bottom lower short rubber cylinder between lower outside boss and central tube.
The anti-set packer of 32. blocking piece type according to claim 16, it is characterized in that the lower end outside of interstage sleeve is fixed with outer lug boss, lower outer lug boss is fixed with outside the upper end of positioning sleeve, in upper mounting groove between upper outer lug boss and central tube of the baffle ring top at upper short rubber cylinder top, in the lower mounting groove of the baffle ring bottom bottom lower short rubber cylinder between lower outside boss and central tube.
The anti-set packer of 33. blocking piece type according to claim 17, it is characterized in that the lower end outside of interstage sleeve is fixed with outer lug boss, lower outer lug boss is fixed with outside the upper end of positioning sleeve, in upper mounting groove between upper outer lug boss and central tube of the baffle ring top at upper short rubber cylinder top, in the lower mounting groove of the baffle ring bottom bottom lower short rubber cylinder between lower outside boss and central tube.
The anti-set packer of 34. blocking piece type according to claim 18, it is characterized in that the lower end outside of interstage sleeve is fixed with outer lug boss, lower outer lug boss is fixed with outside the upper end of positioning sleeve, in upper mounting groove between upper outer lug boss and central tube of the baffle ring top at upper short rubber cylinder top, in the lower mounting groove of the baffle ring bottom bottom lower short rubber cylinder between lower outside boss and central tube.
The anti-set packer of 35. blocking piece type according to claim 19, it is characterized in that the lower end outside of interstage sleeve is fixed with outer lug boss, lower outer lug boss is fixed with outside the upper end of positioning sleeve, in upper mounting groove between upper outer lug boss and central tube of the baffle ring top at upper short rubber cylinder top, in the lower mounting groove of the baffle ring bottom bottom lower short rubber cylinder between lower outside boss and central tube.
The anti-set packer of 36. blocking piece type according to claim 20, it is characterized in that the lower end outside of interstage sleeve is fixed with outer lug boss, lower outer lug boss is fixed with outside the upper end of positioning sleeve, in upper mounting groove between upper outer lug boss and central tube of the baffle ring top at upper short rubber cylinder top, in the lower mounting groove of the baffle ring bottom bottom lower short rubber cylinder between lower outside boss and central tube.
The anti-set packer of 37. blocking piece type according to claim 21, it is characterized in that the lower end outside of interstage sleeve is fixed with outer lug boss, lower outer lug boss is fixed with outside the upper end of positioning sleeve, in upper mounting groove between upper outer lug boss and central tube of the baffle ring top at upper short rubber cylinder top, in the lower mounting groove of the baffle ring bottom bottom lower short rubber cylinder between lower outside boss and central tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310424039.1A CN103470210B (en) | 2013-09-17 | 2013-09-17 | The anti-set packer of blocking piece type |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310424039.1A CN103470210B (en) | 2013-09-17 | 2013-09-17 | The anti-set packer of blocking piece type |
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| CN103470210A CN103470210A (en) | 2013-12-25 |
| CN103470210B true CN103470210B (en) | 2016-01-13 |
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| CN201310424039.1A Active CN103470210B (en) | 2013-09-17 | 2013-09-17 | The anti-set packer of blocking piece type |
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| CN115680550A (en) * | 2022-09-07 | 2023-02-03 | 韩玉中 | Stable and durable packer |
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|---|---|---|---|---|
| US4655286A (en) * | 1985-02-19 | 1987-04-07 | Ctc Corporation | Method for cementing casing or liners in an oil well |
| CN101165310A (en) * | 2006-10-18 | 2008-04-23 | 刘宜贵 | One-way slip hydraulic base sealed packer |
| CN101265789A (en) * | 2008-05-09 | 2008-09-17 | 中国石油天然气集团公司 | Compound pressurized cyclone tail tube hanging packer |
| CN101503952A (en) * | 2008-02-04 | 2009-08-12 | 中国石油化工股份有限公司 | Seat seal mechanism used for packing type tail pipe hanger |
-
2013
- 2013-09-17 CN CN201310424039.1A patent/CN103470210B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4655286A (en) * | 1985-02-19 | 1987-04-07 | Ctc Corporation | Method for cementing casing or liners in an oil well |
| CN101165310A (en) * | 2006-10-18 | 2008-04-23 | 刘宜贵 | One-way slip hydraulic base sealed packer |
| CN101503952A (en) * | 2008-02-04 | 2009-08-12 | 中国石油化工股份有限公司 | Seat seal mechanism used for packing type tail pipe hanger |
| CN101265789A (en) * | 2008-05-09 | 2008-09-17 | 中国石油天然气集团公司 | Compound pressurized cyclone tail tube hanging packer |
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| CN103470210A (en) | 2013-12-25 |
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Effective date of registration: 20201110 Address after: 100120 Beijing Xicheng District six laying Kang Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Xibu Drilling Engineering Co.,Ltd. Address before: 830026 science and technology management division, West drilling and Drilling Engineering Research Institute, No. 68, South Central Road, Urumqi, the Xinjiang Uygur Autonomous Region Patentee before: CNPC Xibu Drilling Engineering Co.,Ltd. |
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