CN103061709B - Sliding sleeve control tool and the hydraulic control sliding sleeve of operation can be surmounted - Google Patents
Sliding sleeve control tool and the hydraulic control sliding sleeve of operation can be surmounted Download PDFInfo
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- CN103061709B CN103061709B CN201310023553.4A CN201310023553A CN103061709B CN 103061709 B CN103061709 B CN 103061709B CN 201310023553 A CN201310023553 A CN 201310023553A CN 103061709 B CN103061709 B CN 103061709B
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Abstract
The invention discloses a kind of sliding sleeve control tool and the hydraulic control sliding sleeve of operation can be surmounted, the outer wall of the cutting ferrule (24) of described sliding sleeve control tool is provided with teat (243) successively, draw-in groove (242) and lower teat (244), the upper groove (91) that in sliding sleeve, setting matches with it, boss (93) and low groove (92), only have when the corresponding position of sliding sleeve control tool arrival sliding sleeve, cutting ferrule (24) could stretch out from sliding sleeve control tool, cutting ferrule (2) is made to be in open configuration, thus make this cutting ferrule (24) automatically can identify boss (93) on inner sleeve (9) and clamp inner sleeve (9), now by carry or lower drain line or coiled tubing, realize the switch motion of sliding sleeve.So both can avoid the defect of traditional easy maloperation of sliding sleeve control tool, but also improve operating efficiency, and simple to operation.
Description
Technical field
The present invention relates to technical field of petroleum extraction, the sliding sleeve control tool realizing underground sliding sleeve location recognition and switching sliding sleeve particularly used in oil well fracturing operation, or a kind of hydraulic control sliding sleeve realizing surmounting operation used in oil well fracturing operation.
Background technology
In field produces, automatically controlled fracturing sliding bush has that big orifice, operation technique are simple, success rate and safety is high, easily realize the advantages such as the without hindrance pressure break of multistage is emerging a kind of fracturing sliding bush in the last few years.As Chinese patent CN102518420A, on June 27 2012 publication date, disclose " one does not limit the automatically controlled fracturing sliding bush of layer ".Automatically controlled sliding sleeve works under the pressure condition that the 70MPa that is everlasting is even higher, and subsurface environment is severe, and the control of automatically controlled sliding sleeve must consider prediction scheme process.Namely, when the situation that the electric-control system of automatically controlled sliding sleeve lost efficacy, the alternative switching manipulation of control method realization to sliding sleeve should be had.Namely by surmount operation cannot normally work to the electric-control system of automatically controlled sliding sleeve time, realize the switch control rule of sliding sleeve.
At present, existing surmounting controls to be that mode by entering continuous print sliding sleeve control tool under in sliding sleeve controls, conventional sliding sleeve control tool all adopts groove RM, namely the projection by sliding sleeve control tool is arranged identifies the groove on sliding sleeve internal perisporium, the connection realized between sliding sleeve control tool and sliding sleeve is fastened in groove to make projection, move or lower drain line on passing through afterwards, realize the unlatching to downhole electric control sliding sleeve or closedown.
But, when horizontal well, high angle hole etc. have operation in the pit shaft of the labyrinth borehole wall, in the groove on sliding sleeve internal perisporium, usually can sand grains be deposited, depth of groove shoals, cause sliding sleeve control tool accurately cannot identify groove on sliding sleeve, and cannot accurate locating slide sleeve, cause operation to lose efficacy; In addition, due in existing pit shaft, each downhole tool needs to be connected by links such as box cuplings usually, sunk structure can be formed between box cupling and downhole tool, when sliding sleeve control tool is transferred to after in oil pipe, the sunk structure formed between box cupling and downhole tool can cause the projection on sliding sleeve control tool to identify by mistake, and makes projection be fastened in this sunk structure, cause the maloperation of sliding sleeve control tool, cause operation to lose efficacy.
Summary of the invention
In order to solve the technical problem of the easy maloperation of sliding sleeve control tool conventional in prior art, the invention provides a kind of sliding sleeve control tool, this sliding sleeve control tool adopts the mode of boss identification, effectively can prevent maloperation, improve operating efficiency, and simple to operation.Present invention also offers a kind of hydraulic control sliding sleeve surmounting operation.
The present invention is the technical scheme solving the employing of its technical problem: a kind of sliding sleeve control tool, described sliding sleeve control tool comprises the columnar upper press ring connected successively from the top down, columnar base tube and columnar lower pressure ring, axially through centre bore is provided with in base tube, the upper end of base tube is fixedly connected with the top connection of tubular, the lower end of base tube is fixedly connected with the lower contact of tubular, the sidewall of base tube is provided with the multiple piston holes be communicated with inside and outside base tube, piston is equipped with in each piston hole, the sidewall of base tube is outside equipped with cutting ferrule, cutting ferrule comprises two and is symmetrical set and identical half cutting ferrule of size and shape, along the circumference of cutting ferrule, the outer wall of each half cutting ferrule is equipped with draw-in groove, along the axis of cutting ferrule, the two ends of each half cutting ferrule are respectively equipped with teat and lower teat, piston is corresponding with the position of upper teat and lower teat respectively, upper press ring and lower pressure ring can both sliding axially along base tube, upper press ring is sheathed on outside base tube and top connection, upper spring is provided with between upper press ring and top connection, upper press ring is abutted with the upper end of cutting ferrule by the top pressure of upper spring, pressing down ring set is located at outside base tube and lower contact, be provided with lower spring between pressure ring and lower contact down, lower pressure ring is abutted with the lower end of cutting ferrule by the top pressure of lower spring.
A kind of hydraulic control sliding sleeve surmounting operation, comprise outer sleeve and be arranged on the inner sleeve in outer sleeve, the two ends of inner sleeve and outer sleeve are tightly connected and inner sleeve can sliding axially along outer sleeve, along the circumference of this hydraulic control sliding sleeve, the inwall of inner sleeve contains the upper groove of annular setting up and down and the low groove of annular, the inwall of the inner sleeve between upper groove and low groove forms the boss of annular, boss and above-mentioned draw-in groove match, upper groove and above-mentioned upper teat match, and low groove and above-mentioned lower teat match.
Preferably along the axis direction of inner sleeve, the length of upper groove and low groove is less than the length of boss.
Closed toroidal cavity is provided with between outer sleeve and inner sleeve, in toroidal cavity, axis along outer sleeve is connected with the first closed shoe cream room in turn, the sliding sleeve piston of the annular be fixedly connected with inner sleeve, the second shoe cream room closed, the described hydraulic control sliding sleeve surmounting operation also comprises the fueller providing hydraulic oil, hydraulicdirectional control valve and the control device for hydraulic control reversal valve, hydraulicdirectional control valve is two-bit triplet electirc controlling hydraulic reversing valve, fueller is communicated with the oil-in of hydraulicdirectional control valve, first oil-out of hydraulicdirectional control valve is communicated with the first shoe cream room, second oil-out of hydraulicdirectional control valve is communicated with the second shoe cream room, the volume of the hydraulic oil that fueller can hold is at least 2 times of the first shoe cream room volume, control device can make fueller only to the first shoe cream room fuel feeding by hydraulic control reversal valve, or make fueller only to the second shoe cream room fuel feeding.
The outer cylinder sheath that fueller comprises tubular and the inner cylinder liner be sheathed in outer cylinder sheath, one end of one end of outer cylinder sheath and inner cylinder liner simultaneously with one end fixed seal connection of outer sleeve, the other end of outer cylinder sheath is connected with the other end of inner cylinder liner, annular spatial accommodation is formed between outer cylinder sheath and inner cylinder liner, in annular spatial accommodation, axis along outer cylinder sheath is connected with closed annular oil storage space in turn, the oil cylinder piston of annular and the energy storing space of annular, the spring that can promote oil cylinder piston compression oil storage space is provided with in energy storing space, the inside of inner cylinder liner is communicated with the inside of inner sleeve, oil storage space is communicated with the oil-in of hydraulicdirectional control valve, energy storing space is communicated with the inside of inner cylinder liner.
The other end of fueller is provided with the upper union of tubular, the inwall of the other end of outer cylinder sheath and the outer wall fixed seal connection of upper union one end, the outer wall of the other end of inner cylinder liner is connected with the inwall of upper union one end, energy storing space is adjacent with upper union, one end of spring abuts with one end of upper union, the other end of spring abuts with oil cylinder piston, and the inside of energy storing space and inner cylinder liner is by the gap area between inner cylinder liner and upper union.
Oil storage space is adjacent with outer sleeve, the outer wall fixed seal connection of the inwall of one end of outer cylinder sheath and one end of outer sleeve, the inwall fixed seal connection of the outer wall of one end of inner cylinder liner and one end of outer sleeve.
Control device comprises the control unit of the antenna for received RF signal, the signal hydraulic control reversal valve operation according to antenna reception, and antenna is arranged on the inner surface of outer sleeve, and control unit is arranged in the annular seal space in the sidewall of outer sleeve.
Inner sleeve is provided with multiple sandblasting hole, and outer sleeve is provided with the spray-hole that can be communicated with sandblasting hole and outer sleeve outside, is provided with shear pin between outer sleeve and inner sleeve.
Along the axis direction of inner sleeve, the external surface of inner sleeve is provided with groove, is provided with the guide pin be fixedly connected with the inner surface of outer sleeve in this groove.
The invention has the beneficial effects as follows: the cutting ferrule of sliding sleeve control tool is provided with continuous print protuberance, draw-in groove and protuberance, and in sliding sleeve, be provided with the groove, boss and the groove that match with it, only have when it mates mutually, two and half cutting ferrules of cutting ferrule could expose from the surface of sliding sleeve control tool and buckle corresponding to sliding sleeve connects, thus effectively can prevent maloperation, improve operating efficiency, and simple to operation.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, sliding sleeve control tool of the present invention and the hydraulic control sliding sleeve that can surmount operation are described in further detail.
Fig. 1 is the structural representation of sliding sleeve control tool of the present invention when not being connected with sliding sleeve buckle.
Fig. 2 is the structural representation of sliding sleeve control tool of the present invention when being connected with sliding sleeve buckle.
Fig. 3 is the structural representation surmounting the hydraulic control sliding sleeve of operation of the present invention.
Fig. 4 is the close-up schematic view at B position in Fig. 3.
Fig. 5 is the close-up schematic view of A position when sliding sleeve is in opening in Fig. 3.
Fig. 6 is the close-up schematic view of A position when sliding sleeve is in closed condition in Fig. 3.
Fig. 7 is the close-up schematic view at C position in Fig. 3.
Wherein union on 1., 4. fueller, 41. annular spatial accommodations, 42. outer cylinder sheaths, 43. springs, 44. oil cylinder pistons, 45. inner cylinder liners, 46. oil storage space, 47. energy storing space, 6. control device, 61. antennas, 62. control units, 63. annular seal spaces, 7. outer sleeve, 71. first outer sleeves, 72. second outer sleeves, 73. the 3rd outer sleeves, 8. hydraulicdirectional control valve, 9. inner sleeve, 91. upper grooves, 92. low grooves, 93. boss, 12. lower pipe connections, 13. sandblasting holes, 15. guide pins, 16. toroidal cavities, 161. first shoe cream rooms, 162. second shoe cream rooms, 163. sliding sleeve pistons, 21. upper press rings, 211. upper spring, 22. base tubes, 221. centre bore, 222. top connection, 223. lower contact, 224. piston hole, 225. piston, 23. times pressure rings, 231. lower spring, 24. cutting ferrules, 241. half cutting ferrules, 242. draw-in groove, teat on 243., 244. times teats.
Detailed description of the invention
Below in conjunction with accompanying drawing, sliding sleeve control tool of the present invention is described in detail.A kind of sliding sleeve control tool, described sliding sleeve control tool comprises the columnar upper press ring 21 connected successively from the top down, columnar base tube 22 and columnar lower pressure ring 23, axially through centre bore 221 is provided with in base tube 22, the upper end of base tube 22 is fixedly connected with the top connection 222 of tubular, the lower end of base tube 22 is fixedly connected with the lower contact 223 of tubular, the sidewall of base tube 22 is provided with the multiple piston holes 224 be communicated with inside and outside base tube 22, piston 225 is equipped with in each piston hole 224, the sidewall of base tube 22 is outside equipped with cutting ferrule 24, cutting ferrule 24 comprises two and is symmetrical set and identical half cutting ferrule 241 of size and shape, along the circumference of cutting ferrule 24, the outer wall of each half cutting ferrule 241 is equipped with draw-in groove 242, along the axis of cutting ferrule 24, the two ends of each half cutting ferrule 241 are respectively equipped with teat 243 and lower teat 244, piston 225 is corresponding with the position of upper teat 243 and lower teat 244 respectively, upper press ring 21 and lower pressure ring 23 can both along the axially lower slider of base tube 22, upper press ring 21 is sheathed on outside base tube 22 and top connection 222, upper spring 211 is provided with between upper press ring 21 and top connection 222, upper press ring 21 is abutted with the upper end of cutting ferrule 24 by the top pressure of upper spring 211, lower pressure ring 23 is sheathed on outside base tube 22 and lower contact 223, lower spring 231 is provided with between lower pressure ring 23 and lower contact 223, lower pressure ring 23 is abutted with the lower end of cutting ferrule 24 by the top pressure of lower spring 231, as Fig. 1, shown in Fig. 2.
A kind of hydraulic control sliding sleeve surmounting operation, the inner sleeve 9 comprising outer sleeve 7 and be arranged in outer sleeve 7, the two ends of inner sleeve 9 and outer sleeve 7 are tightly connected and inner sleeve 9 can sliding axially along outer sleeve 7, along the circumference of this hydraulic control sliding sleeve, the inwall of inner sleeve 9 contains the upper groove 91 of annular setting up and down and the low groove 92 of annular, the inwall of the inner sleeve 9 between upper groove 91 and low groove 92 forms the boss 93 of annular, boss 93 and above-mentioned draw-in groove 242 match, upper groove 91 and above-mentioned upper teat 243 match, low groove 92 and above-mentioned lower teat 244 match, as Fig. 3, shown in Fig. 7.
When sliding sleeve control tool of the present invention is when identifying the inner sleeve 9 of down-hole, first, be connected with oil pipe or coiled tubing by the jointing connecting top connection in FIG 222 upper end, realize transferring sliding sleeve control tool by oil pipe or coiled tubing.Sliding sleeve control tool is in decentralization process, upper spring 211 and lower spring 231 are in compressive state, upper press ring 21 and lower pressure ring 23 are respectively by the two ends up and down of the effect top pressure cutting ferrule 24 of upper spring 211 and lower spring 231, now cutting ferrule 2 is in rounding state, as shown in Figure 1, also namely cutting ferrule 24 internal perisporium is closely connected with the periphery wall of base tube 22, the external surface of upper teat 243 and lower teat 244 is less than or equal to the radius of upper press ring 21 and lower pressure ring 23, to avoid occurring stuck phenomenon in decentralization process to the distance of the axis of base tube 22, afterwards, as shown in Figure 2, in oil pipe or coiled tubing, water filling is suppressed, under the pressure effect of injecting water, piston 225 in four piston holes 224 be connected with the centre bore 221 of base tube 22 has the movement tendency of the radially outward movement along base tube 22, the upper teat 243 of piston 225 contact cutting ferrule 24 and lower teat 244, make half cutting ferrule 241 of cutting ferrule 24 also have the movement tendency of the radially outward movement along base tube 22, only have when the corresponding position of sliding sleeve control tool arrival inner sleeve 9 of the present invention, because half cutting ferrule 241 is integral type structure, the draw-in groove 242 that cutting ferrule 24 periphery wall is offered and boss 93 Corresponding matching on inner sleeve 9 internal perisporium, and when upper teat 243 and lower teat 244 are respectively with upper groove 91 and low groove 92 Corresponding matching, cutting ferrule 24 could stretch out from sliding sleeve control tool, cutting ferrule 2 is made to be in open configuration, thus make this cutting ferrule 24 automatically can identify boss 93 on inner sleeve 9, cutting ferrule 24 opens rear clamping inner sleeve 9, now by carry or lower drain line or coiled tubing, realize the switch motion of sliding sleeve.So both can avoid the defect of traditional easy maloperation of sliding sleeve control tool, but also improve operating efficiency, and simple to operation.
Along the axis direction of inner sleeve 9, the length of upper groove 91 and low groove 92 is less than the length of boss 93.Meanwhile, the width of draw-in groove 242 is greater than the width of teat 243 and lower teat 244, and the advantage of such design enters under sliding sleeve control tool after in sliding sleeve, and draw-in groove 242 easier can identify the boss 93 of sliding sleeve internal perisporium.
Closed toroidal cavity 16 is provided with between outer sleeve 7 and inner sleeve 9, in toroidal cavity 16, axis along outer sleeve 7 is connected with the first closed shoe cream room 161 in turn, the sliding sleeve piston 163 of the annular be fixedly connected with inner sleeve 9, the second shoe cream room 162 closed, the described hydraulic control sliding sleeve surmounting operation also comprises the fueller 4 providing hydraulic oil, hydraulicdirectional control valve 8 and the control device 6 for hydraulic control reversal valve 8, hydraulicdirectional control valve 8 is two-bit triplet electirc controlling hydraulic reversing valve, fueller 4 is communicated with the oil-in of hydraulicdirectional control valve 8, first oil-out of hydraulicdirectional control valve 8 is communicated with the first shoe cream room 161, second oil-out of hydraulicdirectional control valve 8 is communicated with the second shoe cream room 162, the volume of the hydraulic oil that fueller 4 can hold is at least 2 times of the first shoe cream room 161 volume, control device 6 can make fueller 4 only to the first shoe cream room 161 fuel feeding by hydraulic control reversal valve 8, or make fueller 4 only to the second shoe cream room 162 fuel feeding.
This can surmount after under the hydraulic control sliding sleeve lower going-into-well of operation, and sliding sleeve is in closed condition, and the spray-hole that outer sleeve 7 is arranged can not be communicated with the sandblasting hole 13 of inner sleeve 9.When control device 6 by antenna 61 receive electronic tag send signal demand open this fracturing sliding bush time, control device 6 can make fueller 4 only to servicing fluids force feed in the first shoe cream room 161 by hydraulic control reversal valve 8, sliding sleeve piston 163 drives inner sleeve 9 as moved from bottom to top in Fig. 3, when inner sleeve 9 moves to the position that spray-hole is communicated with sandblasting hole 13, this hydraulic control sliding sleeve that can surmount operation is in opening, can carry out pressing crack construction.When sliding sleeve closed by needs, control device 6 can make fueller only to servicing fluids force feed in the second shoe cream room 162 by hydraulic control reversal valve 8, sliding sleeve piston 163 drives inner sleeve 9 as moved from the top down in Fig. 3, and namely inner sleeve 9 oppositely moves and the initial position making inner sleeve 9 get back to spray-hole not to be communicated with sandblasting hole 13.First shoe cream room 161 and the second shoe cream room 162 are provided with the discharge that relief hole is beneficial to hydraulic oil, refer to shown in Fig. 5, Fig. 6 simultaneously.
This fueller uses in down-hole, due to down-hole limited space, need to make full use of space, the outer cylinder sheath 42 that fueller 4 comprises tubular and the inner cylinder liner 45 be sheathed in outer cylinder sheath, one end of one end of outer cylinder sheath 42 and inner cylinder liner 45 simultaneously with one end fixed seal connection of outer sleeve 7, the other end of outer cylinder sheath 42 is connected with the other end of inner cylinder liner 45, annular spatial accommodation 41 is formed between outer cylinder sheath 42 and inner cylinder liner 45, in annular spatial accommodation 41, axis along outer cylinder sheath is connected with closed annular oil storage space 46 in turn, the oil cylinder piston 44 of annular and the energy storing space 47 of annular, be provided with in energy storing space 47 and can promote the spring 43 that oil cylinder piston 44 compresses oil storage space 46, the inside of inner cylinder liner 45 is communicated with the inside of inner sleeve 9, oil storage space 46 is communicated with the oil-in of hydraulicdirectional control valve 8, energy storing space 47 is communicated with the inside of inner cylinder liner 45, as Fig. 3, shown in Fig. 4.The radial area that can not increase fracturing sliding bush is set like this, little on the volume impact of fracturing sliding bush, facilitate this input that can surmount the hydraulic control sliding sleeve of operation and operation.In addition, generally, the first shoe cream room 161 is identical with the volume of the second shoe cream room 162, and the volume of oil storage space 46 is at least 2 times of the first shoe cream room 161 volume, can ensure like this this down-hole electrichydraulic control fracturing sliding bush at least can switch once.
The other end of fueller 4 is provided with columnar upper union 1, the inwall of the other end of outer cylinder sheath 42 and the outer wall fixed seal connection of upper union 1 one end, the outer wall of the other end of inner cylinder liner 45 is connected with the inwall of upper union 1 one end, energy storing space 47 is adjacent with upper union 1, one end of spring 43 abuts with one end of upper union 1, the other end of spring 43 abuts with oil cylinder piston 44, and the inside of energy storing space 47 and inner cylinder liner 45 is by the gap area between inner cylinder liner 45 and upper union 1.After oil storage space 46 is injected into hydraulic oil, spring 43 is compressed, the potential energy that the mechanical energy of hydraulic oil is converted to spring is stored, energy storing space 47 is communicated with the inside of inner cylinder liner 45, such design can make the pressure of spring when stretching suffered by oil cylinder piston 44 only come from spring, avoid the change of the inside and outside differential pressure of energy storing space 47 when volumetric change on the impact of oil cylinder piston, ensure the pressure stable homogeneous of this fueller output hydraulic pressure oil, as Fig. 4.
Oil storage space 46 is adjacent with outer sleeve 7, the outer wall fixed seal connection of the inwall of one end of outer cylinder sheath 42 and one end of outer sleeve 7, the inwall fixed seal connection of the outer wall of one end of inner cylinder liner 45 and one end of outer sleeve 7.Be tightly connected by oil cylinder piston 44 and outer sleeve 7 between outer cylinder sheath 42 and inner cylinder liner 45 and form oil storage space 46.With the tight storage space, one end 46 of outer sleeve 7, existing structure can be made full use of like this and carry out conserve space.
Control device 6 comprises the control unit 62 of the antenna 61 for received RF signal, signal hydraulic control reversal valve 8 operation according to antenna 61 reception.Antenna 61 is arranged on the inner surface of outer sleeve 7, in the annular seal space 63 of control unit 62 outside in sleeve lateral wall.
Inner sleeve 9 is provided with multiple sandblasting hole 13, and outer sleeve 7 is provided with and can be communicated with sandblasting hole 13 and the spray-hole of outer sleeve 7 outside, is provided with shear pin between outer sleeve 7 and inner sleeve 9.
In order to avoid inner sleeve 9 rotates vertically, along the axis direction of inner sleeve 9, the external surface of inner sleeve 9 is provided with groove, is provided with the guide pin 15 be fixedly connected with the inner surface of outer sleeve 7 in groove.Groove matches with guide pin 15 and can ensure being communicated with of sandblasting hole 13 and spray-hole.
The other end of outer sleeve 7 is provided with columnar lower pipe connection 12, and one end of lower pipe connection 12 is fixedly connected with the other end of outer sleeve 7, and the other end of lower pipe connection 12 is communicated with the inside of inner sleeve 9.From upper union 1 to the direction of lower pipe connection 12, this inside that can surmount the hydraulic control sliding sleeve of operation is in conducting state.
For the ease of processing and manufacturing, outer sleeve 7 comprises the first outer sleeve 71, second outer sleeve 72 and the 3rd outer sleeve 73 that connect successively, the inwall of the first outer sleeve 71 is provided with annular groove, annular groove forms toroidal cavity 16 by the outer wall sealing of inner sleeve 9, and fueller 4 is fixedly connected with one end of the first outer sleeve 71.Annular seal space 63 is arranged in the inwall of the first outer sleeve 71.Upper union 1, fueller 4, first outer sleeve 71, second outer sleeve 72, the 3rd outer sleeve 73 and lower pipe connection 12 are threaded connection successively.
The above, be only specific embodiments of the invention, can not limit the scope that invention implements with it, so the displacement of its equivalent assemblies, or the equivalent variations done according to scope of patent protection of the present invention and modification, all still should belong to the category that this patent is contained.
Claims (10)
1. a sliding sleeve control tool, it is characterized in that, described sliding sleeve control tool comprises the columnar upper press ring (21) connected successively from the top down, columnar base tube (22) and columnar lower pressure ring (23), axially through centre bore (221) is provided with in base tube (22), the upper end of base tube (22) is fixedly connected with the top connection (222) of tubular, the lower end of base tube (22) is fixedly connected with the lower contact (223) of tubular, the sidewall of base tube (22) is provided with the multiple piston holes (224) be communicated with inside and outside base tube (22), piston (225) is equipped with in each piston hole (224), the sidewall of base tube (22) is outside equipped with cutting ferrule (24), cutting ferrule (24) comprises two and is symmetrical set and identical half cutting ferrule (241) of size and shape, along the circumference of cutting ferrule (24), the outer wall of each half cutting ferrule (241) is equipped with draw-in groove (242), along the axis of cutting ferrule (24), the two ends of each half cutting ferrule (241) are respectively equipped with teat (243) and lower teat (244), piston (225) is corresponding with the position of upper teat (243) and lower teat (244) respectively, upper press ring (21) and lower pressure ring (23) can both sliding axially along base tube (22), upper press ring (21) is sheathed on base tube (22) and top connection (222) outward, upper spring (211) is provided with between upper press ring (21) and top connection (222), upper press ring (21) is abutted with the upper end of cutting ferrule (24) by the top pressure of upper spring (211), lower pressure ring (23) is sheathed on base tube (22) and lower contact (223) outward, lower spring (231) is provided with between lower pressure ring (23) and lower contact (223), lower pressure ring (23) is abutted with the lower end of cutting ferrule (24) by the top pressure of lower spring (231).
2. one kind can surmount the hydraulic control sliding sleeve of operation, comprise outer sleeve (7) and be arranged on the inner sleeve (9) in outer sleeve (7), the two ends of inner sleeve (9) and outer sleeve (7) are tightly connected and inner sleeve (9) can sliding axially along outer sleeve (7), it is characterized in that: along the circumference of this hydraulic control sliding sleeve, the inwall of inner sleeve (9) contains the upper groove (91) of annular setting up and down and the low groove (92) of annular, the inwall of the inner sleeve (9) between upper groove (91) and low groove (92) forms the boss (93) of annular, boss (93) and the draw-in groove (242) described in claim 1 match, upper groove (91) and the upper teat (243) described in claim 1 match, low groove (92) and the lower teat (244) described in claim 1 match.
3. hydraulic control sliding sleeve according to claim 2, is characterized in that: along the axis direction of inner sleeve (9), and the length of upper groove (91) and low groove (92) is less than the length of boss (93).
4. hydraulic control sliding sleeve according to claim 2, it is characterized in that: between outer sleeve (7) and inner sleeve (9), be provided with closed toroidal cavity (16), in toroidal cavity (16), axis along outer sleeve (7) is connected with closed the first shoe cream room (161) in turn, the sliding sleeve piston (163) of the annular be fixedly connected with inner sleeve (9), the second shoe cream room (162) closed, the described hydraulic control sliding sleeve surmounting operation also comprises the fueller (4) providing hydraulic oil, hydraulicdirectional control valve (8) and the control device (6) for hydraulic control reversal valve (8), hydraulicdirectional control valve (8) is two-bit triplet electirc controlling hydraulic reversing valve, fueller (4) is communicated with the oil-in of hydraulicdirectional control valve (8), first oil-out of hydraulicdirectional control valve (8) is communicated with the first shoe cream room (161), second oil-out of hydraulicdirectional control valve (8) is communicated with the second shoe cream room (162), the volume of the hydraulic oil that fueller (4) can hold is at least 2 times of the first shoe cream room (161) volume, control device (6) can make fueller (4) only to the first shoe cream room (161) fuel feeding by hydraulic control reversal valve (8), or make fueller (4) only to the second shoe cream room (162) fuel feeding.
5. hydraulic control sliding sleeve according to claim 4, it is characterized in that: the outer cylinder sheath (42) that fueller (4) comprises tubular and the inner cylinder liner (45) be sheathed in outer cylinder sheath, one end of one end of outer cylinder sheath (42) and inner cylinder liner (45) simultaneously with one end fixed seal connection of outer sleeve (7), the other end of outer cylinder sheath (42) is connected with the other end of inner cylinder liner (45), annular spatial accommodation (41) is formed between outer cylinder sheath (42) and inner cylinder liner (45), in annular spatial accommodation (41), axis along outer cylinder sheath is connected with closed annular oil storage space (46) in turn, the oil cylinder piston (44) of annular and the energy storing space (47) of annular, the spring (43) that can promote oil cylinder piston (44) compression oil storage space (46) is provided with in energy storing space (47), the inside of inner cylinder liner (45) is communicated with the inside of inner sleeve (9), oil storage space (46) is communicated with the oil-in of hydraulicdirectional control valve (8), energy storing space (47) is communicated with the inside of inner cylinder liner (45).
6. hydraulic control sliding sleeve according to claim 5, it is characterized in that: the other end of fueller (4) is provided with circular upper union (1), the inwall of the other end of outer cylinder sheath (42) and the outer wall fixed seal connection of upper union (1) one end, the outer wall of the other end of inner cylinder liner (45) is connected with the inwall of upper union (1) one end, energy storing space (47) is adjacent with upper union (1), one end of spring (43) abuts with one end of upper union (1), the other end of spring (43) abuts with oil cylinder piston (44), the inside of energy storing space (47) and inner cylinder liner (45) is by the gap area between inner cylinder liner (45) and upper union (1).
7. hydraulic control sliding sleeve according to claim 5, it is characterized in that: oil storage space (46) is adjacent with outer sleeve (7), the outer wall fixed seal connection of the inwall of one end of outer cylinder sheath (42) and one end of outer sleeve (7), the inwall fixed seal connection of the outer wall of one end of inner cylinder liner (45) and one end of outer sleeve (7).
8. hydraulic control sliding sleeve according to claim 4, it is characterized in that: control device (6) comprises the control unit (62) run for the antenna (61) of received RF signal, the signal hydraulic control reversal valve (8) that receives according to antenna (61), antenna (61) is arranged on the inner surface of outer sleeve (7), and control unit (62) is arranged in the annular seal space (63) in the sidewall of outer sleeve (7).
9. hydraulic control sliding sleeve according to claim 2, it is characterized in that: inner sleeve (9) is provided with multiple sandblasting hole (13), outer sleeve (7) is provided with and can be communicated with sandblasting hole (13) spray-hole outside with outer sleeve (7), is provided with shear pin between outer sleeve (7) and inner sleeve (9).
10. hydraulic control sliding sleeve according to claim 2, it is characterized in that: along the axis direction of inner sleeve (9), the external surface of inner sleeve (9) is provided with groove, is provided with the guide pin (15) be fixedly connected with the inner surface of outer sleeve (7) in this groove.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310023553.4A CN103061709B (en) | 2013-01-22 | 2013-01-22 | Sliding sleeve control tool and the hydraulic control sliding sleeve of operation can be surmounted |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310023553.4A CN103061709B (en) | 2013-01-22 | 2013-01-22 | Sliding sleeve control tool and the hydraulic control sliding sleeve of operation can be surmounted |
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| CN103061709A CN103061709A (en) | 2013-04-24 |
| CN103061709B true CN103061709B (en) | 2015-11-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103061709A (en) | 2013-04-24 |
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