CN105672945B - A kind of sliding sleeve opening device - Google Patents
A kind of sliding sleeve opening device Download PDFInfo
- Publication number
- CN105672945B CN105672945B CN201610037576.4A CN201610037576A CN105672945B CN 105672945 B CN105672945 B CN 105672945B CN 201610037576 A CN201610037576 A CN 201610037576A CN 105672945 B CN105672945 B CN 105672945B
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- China
- Prior art keywords
- sliding sleeve
- opening device
- sleeve opening
- card
- elastic card
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- 239000012530 fluid Substances 0.000 claims abstract description 22
- 210000000078 claw Anatomy 0.000 claims description 58
- 230000002093 peripheral effect Effects 0.000 claims description 15
- 238000010276 construction Methods 0.000 description 8
- 238000012546 transfer Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000008602 contraction Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/10—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The present invention proposes a kind of sliding sleeve opening device, including：Card pendant, including linkage section, the card that is connected with the linkage section hang section and first fluid channel；Ball seat includes salvaging end and be formed in the connection end and salvage the second fluid channel between end that the connection end being connected with the linkage section and the connection end are oppositely arranged；Wherein, the salvaging end includes guide portion and clamping portion.Sliding sleeve opening device according to the present invention, it can be connected in series with each other into an entirety with another sliding sleeve opening device by the salvaging end of one of sliding sleeve opening device between two adjacent sliding sleeve opening devices, to which an entirety can be connected between all sliding sleeve opening devices.In this way, can the sliding sleeve opening device string for being connected into an entirety disposably be salvaged pit shaft using fishing tool, salvage efficiency is improved.
Description
Technical field
The present invention relates to oil gas field stimulation technology fields, more particularly to a kind of sliding sleeve opening device.
Background technology
It is promoted to hypotonic compact reservoir with the exploitation of oil-gas reservoir, matched conventional tool technology no longer meets need
It wants.Sliding sleeve is one of the key tool linked up oil jacket annular space in fracturing process, realize separate stratum fracfturing.In oil/gas well completion gas testing
Oil jacket annular space is connected to by Cheng Zhong by the opening action of sliding sleeve, to realize cycle, for operations such as liquid, sand fracturings.Single layer is constructed
Operation only needs a sliding sleeve, but multilayer section construction then needs to concatenate multiple sliding sleeves on one-trip string, when construction under
Supreme opening level-one, one layer of pressure break.With going deep into for tight gas reservoir exploration and development, horizontal well horizontal segment is increasingly longer, adds sand pressure
Split that segments is more and more, ten grades, 20 grades even tens of grades of sliding sleeve technology brought into schedule.
Traditional sliding sleeve is using ball as the mechanism that builds the pressure, and ball is corresponded with ball seat, and bulb diameter is more than latus rectum in seat of receiving.When
When using multistage sliding sleeve operation, different balls and seat of receiving increase step by step according to centainly differential.It is put into successively from small to large when construction
Ball just opens corresponding sliding sleeve.It is insufficient existing for traditional sliding sleeve technology in order to overcome, occur some successively both at home and abroad and theoretically may be used
To realize the novel sliding sleeve technology of more series, such as compound sliding sleeve is designed, and be furnished with dedicated opening tool, passes through opening
Automatic unique cooperation of tool and sliding sleeve and realize and open compound sliding sleeve.
However, at present using the compound sliding sleeve of opening tool open and after completing pressing crack construction, the tool of opening can only coverlet
A seriatim to salvage pit shaft, working efficiency is low.
Invention content
The technical problem to be solved by the present invention is in order to overcome open tool in the prior art can only be by individually seriatim
Salvage pit shaft, ineffective deficiency.
In view of the above-mentioned problems, the present invention proposes a kind of sliding sleeve opening device, including：Card pendant, including linkage section and institute
It states the card that linkage section is connected and hangs section and first fluid channel；Ball seat, include the connection end being connected with the linkage section,
The salvaging end being oppositely arranged with the connection end and the second being formed between the connection end and salvaging end
Body channel；Wherein, the salvaging end includes guide portion and clamping portion.
Sliding sleeve opening device according to the present invention comprising the ball seat for salvaging end is provided with, so that entire sliding sleeve
Opening device has the function of to salvage.When transferring at least two sliding sleeve opening devices in pit shaft, two adjacent sliding sleeves open dress
It can be connected in series with each other into another sliding sleeve opening device by the salvaging end of one of sliding sleeve opening device between setting
One entirety, to which an entirety can be connected between all sliding sleeve opening devices.In this way, can one using fishing tool
The sliding sleeve opening device string for being connected into an entirety is salvaged pit shaft by secondary property, improves salvage efficiency.
In one embodiment, the card pendant further includes being arranged to be located at the linkage section in the first fluid channel
Stopper section on inner wall, the stopper section form cage with the part for connecting end, ball sealer are provided in the cage.In advance
First ball sealer is encapsulated in cage, does not need follow-up pitching, reduces construction procedure.
In one embodiment, it includes at least two axis circumferential direction uniform intervals for surrounding the card pendant that the card, which hangs section,
The elastic card claw of setting and the hook part being arranged on the peripheral surface of the elastic card claw.Elastic card claw can radial deformation,
Facilitate sliding sleeve opening device tripping in pit shaft.After tripping in place, elastic card claw automatically resets so that hook part matches with sliding sleeve
It closes.
In one embodiment, it is provided with chamfering structure between the end face and peripheral surface of the free end of the elastic card claw.
The inclined-plane of chamfering structure has guiding function, is conducive to match with the leading end of adjacent sliding sleeve opening device.
In one embodiment, the hook part includes the protrusion being arranged on the peripheral surface of the elastic card claw, close
It is provided with card slot between the protrusion and chamfering structure of the free end of the elastic card claw.Between adjacent sliding sleeve opening device
It can be connected in series with by salvaging the realization that is connected of end and card slot.
In one embodiment, the hook part includes being arranged on the peripheral surface of the elastic card claw and along the elasticity
At least two protrusions that the extending direction of claw is arranged side by side, wherein two protrusions positioned at both ends are both provided with direction
The lead-in chamfered at the elastic card claw top and bottom.
In one embodiment, the second fluid channel includes the taper hole section being arranged in the salvaging end, described
For the big opening end of taper hole section far from the connection end, the guide portion includes the taper hole section.Taper hole section has guiding
Effect.
In one embodiment, be provided on the connection end ring-shaped rubber part and with the ring-shaped rubber part against
Pressure ring.Ring-shaped rubber part forms boosting structure with pressure ring, and ring-shaped rubber part can fill the connection end of sliding sleeve opening device
Peripheral surface and sliding sleeve inner wall between gap be conducive to external pump pressure push to reduce inflow-rate of water turbine of the fluid at this and slide
Opening device is covered to move axially along pit shaft.
In one embodiment, the clamping portion include the second fluid channel inner wall on be arranged along described second
The annular groove of fluid channel circumferentially extending.A part for the elastic card claw of one sliding sleeve opening device can snap fit onto and its phase
It is connected in the annular groove of adjacent another sliding sleeve opening device with realizing.
In one embodiment, the annular groove forms inclined-plane close to the side wall for salvaging end, and the annular is recessed
The axial dimension of the opening of slot is less than the axial dimension of the bottom of the annular groove.The elastic card claw of one sliding sleeve opening device
A part of another sliding sleeve opening device adjacent thereto annular groove occlusive state it is more reliable and more stable.
Description of the drawings
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.
Fig. 1 is the schematic cross-sectional view of the sliding sleeve opening device of one embodiment of the invention.
Fig. 2 is the schematic cross-sectional view of the sliding sleeve opening device of another embodiment of the present invention.
Fig. 3 is partial enlarged view at A in Fig. 2.
Fig. 4 is partial enlarged view at B in Fig. 2.
In the accompanying drawings, identical component uses identical reference numeral.Attached drawing is not drawn according to actual ratio.
Specific implementation mode
The present invention will be further described with reference to the accompanying drawings.
As shown in Figure 1 and Figure 2, the sliding sleeve opening device 10 of the embodiment of the present invention includes hanging connection for mutually blocking with sliding sleeve
Card pendant 11, the ball seat 12 being connected with card pendant 11.
When needing to carry out sliding sleeve 10 salvage of opening device, external fishing tool is transferred in pit shaft, outside is beaten
Fishing combined tool is connected with first order sliding sleeve opening device 10 and removes first order sliding sleeve opening device 10 from sliding sleeve first.So
Afterwards, continue to transfer external fishing tool, external fishing tool will push first order sliding sleeve opening device 10 to move to deep wellbore.
Until first order sliding sleeve opening device 10 is connected with second level sliding sleeve opening device 10, and so on, until penultimate stage
Sliding sleeve opening device 10 is connected with the last one sliding sleeve opening device 10, at this point, all sliding sleeve opening devices 10 in pit shaft
It is sequentially connected in series to form an entirety, stops the external fishing tool of decentralization.Reversely above carry external fishing tool, external fishing tool energy
It enough carries 10 uplink of sliding sleeve opening device of bunchiness and all sliding sleeve opening devices 10 is finally proposed into pit shaft.In this way, using beating
Fishing combined tool can once salvage multiple sliding sleeve opening devices 10, to improve salvage efficiency.
Card pendant 11 include linkage section 111, the card that is connected with linkage section 111 hang section 112 and run through linkage section 111 and
Card hangs the first fluid channel of section 112.It includes from the axially extending of the end face upper edge linkage section 111 of linkage section 111 that card, which hangs section 112,
The elastic card claw 112a gone out and the hook part being arranged on the peripheral surface of elastic card claw 112a.
In the present embodiment, it includes at least two circumferentially equally distributed elasticity of axis for surrounding linkage section 111 that card, which hangs section 112,
Claw 112a.Preferably, it includes three elastic card claw 112a that card, which hangs section 112,.Hook part includes being arranged in elastic card claw 112a
Raised 112b on peripheral surface.
When being provided at least two protrusion 112b on the peripheral surface of elastic card claw 112a, each protrusion 112b is along elastic card
The extending direction interval of pawl 112a is arranged.It is provided on the inner wall of sliding sleeve and the matched grooves of protrusion 112b.Positioned at both ends
Two protrusion 112b be both provided with the lead-in chamfered towards at the top of elastic card claw 112a and bottom, the groove being arranged on sliding sleeve
Also have and the matched inclined-plane of lead-in chamfered.Be arranged guide surface raised 112b can smoothly enter be arranged on sliding sleeve it is recessed
Deviate from slot or from the groove being arranged on sliding sleeve.
Into pit shaft transfer sliding sleeve opening device 10 when, elastic card claw 112a by the radial force effect that the borehole wall applies and
Radial contraction occurs, ensures that sliding sleeve opening device 10 can be transferred smoothly.When sliding sleeve opening device 10 is delegated to and its phase
When the target sliding sleeve position matched, the radial load acted on elastic card claw 112a disappears, and elastic card claw 112a can expand reply
Raised 112b to original state, and then on elastic card claw 112a, which can block, to be suspended on the groove of sliding sleeve, and sliding sleeve opens dress at this time
It sets 10 and is in and have opening sliding sleeve state.When needing to salvage sliding sleeve opening device 10, radial make is applied to elastic card claw 112a
Firmly so that radial contraction deformation occurs for elastic card claw 112a, and then the raised 112b being arranged thereon is detached with the groove of sliding sleeve
And eventually disengage from and hang state with the card of sliding sleeve, sliding sleeve opening device 10 is in salvaged state at this time.
Ball seat 12 include the connection end 121 being threadedly coupled with the linkage section of card pendant 11 111, with connect 121 phase of end
It salvaging end 122 to setting and is formed in connection end 121 and salvages the second fluid channel between end 122.It salvages
End 122 includes the guide portion coordinated with sliding sleeve for guiding next stage sliding sleeve opening device 10 to be detached from and can be with next stage
The clamping portion of 10 phase of sliding sleeve opening device clamping connection.
In the present embodiment, second fluid channel includes salvaging end towards the receiving hole section 123 of card pendant 11, setting
122 taper hole section 124 and connection accommodate the middle hole section 125 of hole section 123 and taper hole section 124.Accommodate the straight of hole section 123
Diameter is more than the diameter of middle hole section 125.It accommodates the step surface between hole section 123 and middle hole section 125 and forms undertaking ball sealer 13
Continuing surface.The guide portion for salvaging end 122 includes taper hole section 124.Taper hole section 124 can guide next stage sliding sleeve to open
The elastic card claw 112a of device 10 enters in taper hole section 124 so that elastic card claw 112a is detached from the cooperation with sliding sleeve.
It is provided with chamfering structure 113 between the end face and peripheral surface of the free end of elastic card claw 112a, to elastic card claw
The inclined-plane towards external environment is formed on the free end of 112a, which has guiding mating reaction.When upper level sliding sleeve is opened
When opening device 10 is pushed progress salvage, it is arranged and is used to open with next stage sliding sleeve in the taper hole section 124 for salvaging end 122
The free end of the elastic card claw 112a of opening device 10 matches.
Clamping portion in the present embodiment include be arranged on the inner wall of the middle hole section 125 in second fluid channel annular it is recessed
Slot 126.Annular groove 126 is located closer to taper hole section 124.Between annular groove 126 and the osculum end of taper hole section 124
Form latch 127.It is provided between the raised 112b and chamfering structure 113 at the top close to the free end of elastic card claw 112a
Card slot 114.Clamping structure 115 is formed between card slot 114 and chamfering structure 113.
When carrying out salvage, the latch 127 of upper level sliding sleeve opening device 10 can snap fit onto the unlatching of next stage sliding sleeve
To realize that mutual clamping connects in the card slot 114 of device 10.As the elastic card claw 112a of next stage sliding sleeve opening device 10
End enters middle hole section 125 and clamping structure 115 thereon and annular groove 126 are with respect to behind position, elastic card claw 112a's
End can under the action of elastic-restoring force radial dilatation, and then clamping structure 115 can snap fit onto in annular groove 126, simultaneously
Card slot 114 is clamped with 127 phase of latch so that is formed between upper level sliding sleeve opening device 10 and next stage sliding sleeve opening device 10
Clamping connection ensures that upper level sliding sleeve opening device 10 is clamped shape with next stage sliding sleeve opening device 10 during salvage
The stability and reliability of state.
In one embodiment, as shown in Figure 2 and Figure 3, annular groove 126 forms inclined-plane close to the side wall for salvaging end 122
126a, to which the axial dimension of the opening of annular groove 126 is less than the axial dimension of the bottom of annular groove 126 so that latch
127 at this be in ratchet-like.As shown in Figure 2, Figure 4 shows, side wall of the card slot 114 close to the end of the free end of elastic card claw 112a
Inclined-plane 114a is formed, to which the axial dimension of the opening of card slot 114 is less than the axial dimension of the bottom of card slot 114 so that clamping
Structure 115 is also in ratchet-like at this.In this way, when the card slot 114 of the sliding sleeve opening device 10 of next stage is stung with the completion of latch 127
After conjunction, in the upper sliding sleeve opening device 10 for putting on level-one, 127 meeting of latch of the sliding sleeve opening device 10 of upper level and next stage
The card slot 114 of sliding sleeve opening device 10 be engaged tighter, the sliding sleeve opening device 10 of next stage is not easy the sliding sleeve from upper level
It falls off on opening device 10, improves the reliability and stability connected between the two.
In one embodiment, after sliding sleeve opening device 10 transfers to precalculated position, then it is close from pit shaft opening input
Blocking 13, ball sealer 13, which is eventually fallen in, to be accommodated in hole section 123 and matches with continuing surface to form sealing surface at this, packing the
One fluid channel and second fluid channel.Then, external pump pressure pushes sliding sleeve opening device 10 to move, and then sliding sleeve opening device
10 drive sliding sleeve movements open work to complete sliding sleeve.
In another embodiment, the cage for accommodating ball sealer 13 is set in sliding sleeve opening device 10.In this way, ball sealer 13
It transfers in pit shaft, is not necessarily to from pit shaft opening pitching together with sliding sleeve opening device 10.Cage concrete structure can be,
One fluid channel is located at the stopper section 116 that annular and protrusion are arranged on the inner wall of linkage section 111.Ball seat 12 is completed with card pendant 11
After connection, the part corresponding with connection end 121 and receiving hole section 123 of stopper section 116 forms cage.The setting of ball sealer 13 exists
In cage.Ball sealer 13 can be limited when freely movable in cage by stopper section 116, to deviate from from cage.
After sliding sleeve opening device 10 is transferred to precalculated position, so that it may directly carry out external pump pressure work, contracting to sliding sleeve opening device 10
The short construction time.After the pump pressure of outside, ball sealer 13 is pressed on continuing surface to form sealing surface, and then is completed sliding sleeve and opened work
Make.
When upper level sliding sleeve opening device 10 salvages next stage sliding sleeve opening device 10, as elastic card claw 112a
Free end chamfering structure 113 inclined-plane be in contact with the hole wall of taper hole section 124 after, two sliding sleeve opening devices 10 continue
It moves towards, and then the inclined-plane of the free end of elastic card claw 112a can be along the hole wall Relative sliding of taper hole section 124, and then beats
Radial forces can be applied so that radial contraction occurs for elastic card claw 112a to elastic card claw 112a by dragging for end 122.In bullet
During property claw 112a is gradually inserted taper hole section 124, the raised 112b of elastic card claw 112a is also gradually from sliding sleeve
It is exited in groove.Finally, under the action of salvaging end 122, sliding sleeve opening device 10 is detached from card extension state with sliding sleeve and enters
Salvaged state.
When next stage sliding sleeve opening device 10 elastic card claw 112a upper level sliding sleeve opening device 10 salvaging
After being detached from sliding sleeve under the action of end 122, elastic card claw 112a is reached in the insertion for the taper hole section 124 for salvaging end 122
To maximum, so that the salvaging end 122 of the sliding sleeve opening device 10 of upper level can be by under elastic card claw 112a push
The sliding sleeve opening device 10 of level-one is moved to the sliding sleeve opening device 10 of next stage again.
The osculum end of taper hole section 124 is connected with middle hole section 125, and big opening end direction is external.In one embodiment,
The diameter of the big opening end of taper hole section 124 is less than the diameter for salvaging end 122, has end face to salvage end 122.The end
The longitudinal section in face is arc-shaped, i.e., divides between the end face and peripheral surface of salvaging end 122 and between the hole wall of taper hole section 124
Rounded structure is not provided with it.
As shown in Figure 1, connection end 121 on be provided with ring-shaped rubber part 98 and with ring-shaped rubber part 98 against pressure ring
99.It connects and is provided with step on the end of end 121.Ring-shaped rubber part 98 is set on connection end 121.Then, by pressure ring
99 are set on connection end 121 and are resisted against on ring-shaped rubber part 98.The connection of end 121 and card pendant 11 will finally be connected
Section 111 is threadedly coupled, and the end face of linkage section 111 squeezes pressure ring 99 and ring-shaped rubber jointly with the step surface connecting on end 121
Part 98 is with fixed pressure ring 99 and ring-shaped rubber part 98.Connection can be arranged multiple ring-shaped rubber parts 98 on end 121, and two adjacent
Ring-shaped rubber part 98 between be arranged a pressure ring 99.Ring-shaped rubber part 98 forms boosting structure with pressure ring 99.Ring-shaped rubber part
98 can fill the gap between the peripheral surface and sliding sleeve inner wall of the connection end 121 of sliding sleeve opening device 10, to reduce stream
Inflow-rate of water turbine of the body at this is conducive to external pump pressure push sliding sleeve opening device 10 and is moved axially along pit shaft.
The sliding sleeve opening device 10 of the embodiment of the present invention use and to salvage process specific as follows：
It is first to be pushed to sliding sleeve opening device 10 in pit shaft by pushing tool, elastic card claw to open sliding sleeve process
112a radial contractions deform, and the raised 112b on elastic card claw 112a is in contact with the borehole wall.Pushing tool is by sliding sleeve opening device
10 are pushed at target sliding sleeve.With after the groove contraposition on sliding sleeve, elastic card claw 112a is returned the raised 112b of elastic card claw 112a
Multiple original state, and then protrusion 112b cards are suspended in groove.When sliding sleeve opening device 10 is without ball sealer 13, pitching work need to be carried out
Make, then carries out external pump pressure.When sliding sleeve opening device 10 carries ball sealer 13, external pump pressure is directly carried out.It is close after the pump pressure of outside
Blocking 13 and continuing surface seal pack fluid channel so that pressure all acts on sliding sleeve opening device 10.Sliding sleeve opens dress
It sets 10 to move along pit shaft under pressure, and then drives sliding sleeve synchronizing moving, work is opened to complete sliding sleeve.When in pit shaft
When having multistage sliding sleeve, step -by -step switch sliding sleeve opening device 10 is only needed, opens sliding sleeves at different levels step by step.
After completing sliding sleeve opening work and subsequent construction, fishing tool is transferred into pit shaft.When there is multistage cunning in pit shaft
When covering opening device 10, the stripping of sliding sleeve opening device 10 that fishing tool will be close to the top level-one of pit shaft well head first is slided
Set.114 locking of card slot of fishing tool and the sliding sleeve opening device 10 of the top level-one coordinates.Continue to transfer fishing tool, beat
Fishing combined tool will push the sliding sleeve opening device 10 of the top level-one to be moved to the sliding sleeve opening device 10 of next stage.
The salvaging end 122 of the sliding sleeve opening device 10 of the top level-one is by the elasticity of the sliding sleeve opening device 10 of next stage
Claw 112a stripping sliding sleeves are so that the sliding sleeve opening device 10 of next stage is detached from card extension state, the cunning of the top level-one with sliding sleeve
Cover the card slot on the elastic card claw 112a of the sliding sleeve opening device 10 of the latch 127 and next stage on the ball seat of opening device 10
114 phase lockings are engaged.The common sliding sleeve opening device for pushing next stage of sliding sleeve opening device 10 of fishing tool, the top level-one
10 move to the sliding sleeve opening device 10 of next stage again.In this way, the sliding sleeve opening device 10 of fishing tool, the top level-one and
The series connection of sliding sleeve opening device 10 of bottom level-one forms an entirety and enters the state of being salvaged.Stop decentralization fishing tool,
Fishing tool connects to form an entirety with all grades of 10 locking of sliding sleeve opening device.It is reversed above to carry fishing tool, salvage work
Tool will carry all grades of 10 synchronizing moving of sliding sleeve opening device.Finally, fishing tool and all grades of sliding sleeve opening device
10 are suggested pit shaft together, complete salvage.
The sliding sleeve opening device 10 of the embodiment of the present invention can open matched sliding sleeve so that Ke Yi step by step
The sliding sleeve of wellbore arrangement multistage number.In addition, pre-set on sliding sleeve opening device 10 with the ball seat 12 for salvaging end 122,
So as to which after completing to open sliding sleeve work and subsequent construction work, disposable bunchiness can be realized using fishing tool
It salvages, improves salvage efficiency.
In addition, can transfer in the wellbore multiple embodiment of the present invention with salvage end sliding sleeve opening device 10 it
It transfers one again afterwards and does not have the sliding sleeve opening device for salvaging function, the sliding sleeve opening device to not have salvaging function can
Multiple sliding sleeve opening devices 10 with the embodiment of the present invention for salvaging function are spaced apart.In this way, can using fishing tool
It is segmented in batches and all sliding sleeve opening devices 10 is proposed into pit shaft, rather than disposable bunchiness carries all sliding sleeve opening devices 10
Go out pit shaft, the number for the sliding sleeve opening device 10 for once salvaging well can be controlled according to actual conditions.
Although by reference to preferred embodiment, invention has been described, the case where not departing from the scope of the present invention
Under, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as there is no structures to rush
Prominent, items technical characteristic mentioned in the various embodiments can be combined in any way.The invention is not limited in texts
Disclosed in specific embodiment, but include all technical solutions fallen within the scope of the appended claims.
Claims (5)
1. a kind of sliding sleeve opening device, including：
Card pendant, including linkage section, the card that is connected with the linkage section hang section and first fluid channel；
Ball seat, include the connection end being connected with the linkage section, with the salvaging end that is oppositely arranged of connection end with
And it is formed in the connection end and salvages the second fluid channel between end；
Wherein, the salvaging end includes guide portion and clamping portion,
The clamping portion includes being arranged on the inner wall in the second fluid channel along second fluid channel circumferentially extending
Annular groove, the annular groove close to it is described salvage end side wall formed inclined-plane so that the annular groove is opened
The axial dimension of mouth is less than the axial dimension of the bottom of the annular groove；
It is described card hang section include at least two around the card pendant axis circumferential direction uniform intervals be arranged elastic card claws and
Hook part on the peripheral surface of the elastic card claw is set, between the end face and peripheral surface of the free end of the elastic card claw
It is provided with chamfering structure；
The hook part includes the protrusion being arranged on the peripheral surface of the elastic card claw, close to the free end of the elastic card claw
It is described protrusion and chamfering structure between be provided with card slot,
The side wall of the end close to the free end of the elastic card claw of the card slot forms inclined-plane so that the opening of the card slot
Axial dimension be less than the card slot bottom axial dimension.
2. sliding sleeve opening device according to claim 1, which is characterized in that the card pendant further includes setting described the
One fluid channel is located at the stopper section on the inner wall of the linkage section, and the stopper section forms ball with the part for connecting end
Cage is provided with ball sealer in the cage.
3. sliding sleeve opening device according to claim 1, which is characterized in that the hook part includes being arranged in the elasticity
At least two protrusions being arranged side by side on the peripheral surface of claw and along the extending direction of the elastic card claw, wherein be located at both ends
Two protrusions be both provided with the lead-in chamfered towards at the top of the elastic card claw and bottom.
4. sliding sleeve opening device according to claim 1, which is characterized in that the second fluid channel includes being arranged in institute
The taper hole section for salvaging end is stated, for the big opening end of the taper hole section far from the connection end, the guide portion includes described
Taper hole section.
5. sliding sleeve opening device according to claim 1, which is characterized in that be provided with ring-shaped rubber on the connection end
Part and with the ring-shaped rubber part against pressure ring.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610037576.4A CN105672945B (en) | 2016-01-20 | 2016-01-20 | A kind of sliding sleeve opening device |
| MX2018008632A MX2018008632A (en) | 2016-01-20 | 2017-01-13 | Tool for opening sliding sleeve. |
| RU2018128405A RU2733580C2 (en) | 2016-01-20 | 2017-01-13 | Sliding coupling opening tool |
| BR112018014649-8A BR112018014649B1 (en) | 2016-01-20 | 2017-01-13 | SLIDING SLEEVE OPENING TOOL |
| CA3010235A CA3010235A1 (en) | 2016-01-20 | 2017-01-13 | Sliding sleeve opening tool |
| US16/071,154 US11248444B2 (en) | 2016-01-20 | 2017-01-13 | Tool for opening sliding sleeve |
| AU2017209218A AU2017209218B2 (en) | 2016-01-20 | 2017-01-13 | Tool for opening sliding sleeve |
| PCT/CN2017/071164 WO2017124977A1 (en) | 2016-01-20 | 2017-01-13 | Tool for opening sliding sleeve |
| ZA2018/05529A ZA201805529B (en) | 2016-01-20 | 2018-08-17 | Tool for opening sliding sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610037576.4A CN105672945B (en) | 2016-01-20 | 2016-01-20 | A kind of sliding sleeve opening device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105672945A CN105672945A (en) | 2016-06-15 |
| CN105672945B true CN105672945B (en) | 2018-11-06 |
Family
ID=56301802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610037576.4A Active CN105672945B (en) | 2016-01-20 | 2016-01-20 | A kind of sliding sleeve opening device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AU2017209218B2 (en) * | 2016-01-20 | 2022-03-17 | China Petroleum & Chemical Corporation | Tool for opening sliding sleeve |
| CN109236235A (en) * | 2018-09-06 | 2019-01-18 | 中国海洋石油集团有限公司 | A kind of hydraulic sliding sleeve |
| CN112302602B (en) * | 2019-07-29 | 2023-01-31 | 中国石油化工股份有限公司 | Sliding sleeve opening device |
| CN113250650A (en) * | 2021-05-26 | 2021-08-13 | 伍焯辉 | Stage cementing device for deep well cementing engineering |
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| CN202125287U (en) * | 2011-06-22 | 2012-01-25 | 中国石油化工股份有限公司 | Anchor fluke type sliding sleeve opening tool |
| CN102839944A (en) * | 2011-06-22 | 2012-12-26 | 中国石油化工股份有限公司 | Sliding sleeve type fracturing module, device including the module and method of using the device |
| CN202832376U (en) * | 2012-08-07 | 2013-03-27 | 新疆华油油气工程有限公司 | Full-bore closable stratified sliding sleeve |
| CN103321608A (en) * | 2013-07-09 | 2013-09-25 | 中国石油集团渤海钻探工程有限公司 | Rotation-free pawl-type sliding sleeve with ball seat capable of being taken out |
| CN103452542A (en) * | 2012-05-28 | 2013-12-18 | 中国石油天然气股份有限公司 | Switchable fracturing sliding sleeve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102979494B (en) * | 2012-12-28 | 2015-10-28 | 中国石油集团渤海钻探工程有限公司 | Pitching open-type many bunches of sliding sleeves |
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| CN202125287U (en) * | 2011-06-22 | 2012-01-25 | 中国石油化工股份有限公司 | Anchor fluke type sliding sleeve opening tool |
| CN102839944A (en) * | 2011-06-22 | 2012-12-26 | 中国石油化工股份有限公司 | Sliding sleeve type fracturing module, device including the module and method of using the device |
| CN103452542A (en) * | 2012-05-28 | 2013-12-18 | 中国石油天然气股份有限公司 | Switchable fracturing sliding sleeve |
| CN202832376U (en) * | 2012-08-07 | 2013-03-27 | 新疆华油油气工程有限公司 | Full-bore closable stratified sliding sleeve |
| CN103321608A (en) * | 2013-07-09 | 2013-09-25 | 中国石油集团渤海钻探工程有限公司 | Rotation-free pawl-type sliding sleeve with ball seat capable of being taken out |
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| CN105672945A (en) | 2016-06-15 |
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