CN110529064A - Screen casing fishing device and screen casing salvage system - Google Patents
Screen casing fishing device and screen casing salvage system Download PDFInfo
- Publication number
- CN110529064A CN110529064A CN201910981508.7A CN201910981508A CN110529064A CN 110529064 A CN110529064 A CN 110529064A CN 201910981508 A CN201910981508 A CN 201910981508A CN 110529064 A CN110529064 A CN 110529064A
- Authority
- CN
- China
- Prior art keywords
- screen casing
- washing pipe
- wall
- ring
- fishing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005406 washing Methods 0.000 claims abstract description 129
- 238000007789 sealing Methods 0.000 claims description 29
- 239000007788 liquid Substances 0.000 claims description 21
- 239000007924 injection Substances 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 6
- 238000009527 percussion Methods 0.000 claims description 6
- 238000010079 rubber tapping Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 22
- 239000003129 oil well Substances 0.000 description 9
- 238000003801 milling Methods 0.000 description 8
- 239000000243 solution Substances 0.000 description 7
- 239000004576 sand Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/03—Freeing by flushing
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/20—Grappling tools, e.g. tongs or grabs gripping internally, e.g. fishing spears
Abstract
The present invention provides a kind of screen casing fishing devices and screen casing to salvage system, is related to screen casing fishing operation field, and screen casing fishing device includes washing pipe, guiding subassembly and salvaging part；Guiding subassembly fixing sleeve is set to washing pipe outer wall, and guiding subassembly can be slidingly sealed with screen casing；The outer wall that part is fixed at washing pipe is salvaged, part is salvaged and is located above guiding subassembly, salvaging part can connect with screen casing.It includes rinsing module and screen casing fishing device that screen casing, which salvages system,.Screen casing fishing device and screen casing salvage system and have reached the high-efficient technical effect of salvaging.
Description
Technical field
The present invention relates to screen casing fishing operation fields, salvage system in particular to screen casing fishing device and screen casing.
Background technique
With the continuous development and production in oil field, sand control fails the screen casing in part tubular well, cause oil well stop production and
Water injection well stops infusing phenomenon.For that can realize that oil well production and well normally fill the water again, oil well and well need to be carried out secondary
Sand control treatment.It needs to salvage the screen casing in oil well to ground before secondary sand control.There is filling between screen casing and casing in old well
Gravel and reservoir sand, since screen casing is longer in the underground time, gravel and reservoir sand between screen casing and casing have been cemented to
Bulk can not directly extract screen casing.
Conventional screen is salvaged, milling pipe can be used and carry out set milling, but the length of set milling every time is shorter, set milling efficiency compared with
Low, there is also make to meet stuck situation when set milling.For unconventional major diameter screen casing, due to the annular space between screen casing and casing
Space is smaller, and set milling operation can not be carried out using milling pipe, can only be salvaged using mill mode is bored, and bores the salvaging of mill mode
Efficiency is equally very low.
Therefore it provides a kind of salvage high-efficient screen casing fishing device and screen casing salvaging system as those skilled in the art
Important technological problems to be solved.
Summary of the invention
The purpose of the present invention is to provide a kind of screen casing fishing devices and screen casing to salvage system, is beaten in the prior art with alleviating
The technical issues of fishing out low efficiency.
In a first aspect, the embodiment of the invention provides a kind of screen casing fishing device, including washing pipe, guiding subassembly and salvaging
Part；
The guiding subassembly fixing sleeve is set to the washing pipe outer wall, and the guiding subassembly can be slidingly sealed with screen casing；
The outer wall salvaged part and be fixed at the washing pipe, the salvaging part is located above the guiding subassembly, described
Salvaging part can connect with screen casing.
With reference to first aspect, the embodiment of the invention provides a kind of possible embodiments of first aspect, wherein above-mentioned
Guiding subassembly includes elastic sealing element and the attaching means for limiting the elastic sealing element position；
One end of the elastic sealing element is fixedly connected with the washing pipe, and the other end is located in the attaching means, and always
With the trend abutted with the screen casing inner wall；
The attaching means is sheathed on the washing pipe, and is connect by the first connector with the washing pipe, first connection
Part can be cut by fluid pressure, so that the attaching means is slided along the washing pipe.
With reference to first aspect, the embodiment of the invention provides a kind of possible embodiments of first aspect, wherein above-mentioned
Attaching means includes the confinement section set gradually, the first linkage section, annular space section and the second linkage section, and the confinement section is for constraining bullet
Property sealing element, the annular space section and the washing pipe form the first annular space, first linkage section and second linkage section with
The washing pipe is slidingly sealed；First connector is set to first linkage section, and the washing pipe offers and described first
The liquid injection port of annular space connection；
In the washing pipe when fluid injection, liquid can from the liquid injection port enter first annular space in and push it is described about
Bundle is mobile towards the direction far from the elastic sealing element.
With reference to first aspect, the embodiment of the invention provides a kind of possible embodiments of first aspect, wherein above-mentioned
The limited block for limiting the attaching means position is provided on washing pipe.
With reference to first aspect, the embodiment of the invention provides a kind of possible embodiments of first aspect, wherein above-mentioned
Screen casing fishing device further includes seal assembly, and the seal assembly is sheathed on the washing pipe, and by the second connector with it is described
Washing pipe connection, the seal assembly are located above the guiding subassembly；
The seal assembly is in a circular table shape, and the maximum outside diameter of the seal assembly is greater than the internal diameter of screen casing, is salvaging work
When making, the inner wall of the seal assembly can be slidingly sealed with the washing pipe, and outer wall can be with screen casing fixing seal.
With reference to first aspect, the embodiment of the invention provides a kind of possible embodiments of first aspect, wherein above-mentioned
Seal assembly includes base tube, exterior seal ring and inner seal ring；
The base tube is sheathed on the washing pipe outer wall, and the washing pipe outer wall is provided with the limit for limiting the base tube
Part；
The inner seal ring is arranged in the base tube inner wall, and the exterior seal ring is sheathed on the base tube outer wall.
With reference to first aspect, the embodiment of the invention provides a kind of possible embodiments of first aspect, wherein above-mentioned
Seal assembly further includes thrust ring；
The thrust ring is set in the base tube outer wall, and second connector is arranged on the thrust ring.
With reference to first aspect, the embodiment of the invention provides a kind of possible embodiments of first aspect, wherein above-mentioned
Non-return piece is provided between thrust ring and the exterior seal ring, the non-return piece is non-return for realizing the exterior seal ring.
With reference to first aspect, the embodiment of the invention provides a kind of possible embodiments of first aspect, wherein above-mentioned
Seal assembly further includes the anchor log for being fixed at the base tube bottom, and the anchor log can be abutted with the locating part；
The washing pipe outer wall is arranged with the switch ring for controlling the anchor log folding, and the switch collar is set to described
It on base tube, and is connect, is provided on the base tube for resetting the switch ring with the base tube by third connector
Block；
In salvage, after the third connector is cut under the action of hydraulic, the switch ring and the washing pipe
It being capable of opposite sliding.
With reference to first aspect, the embodiment of the invention provides a kind of possible embodiments of first aspect, wherein above-mentioned
Washing pipe bottom is provided with screw motor, and the output end of the screw motor is connected with the percussion component for tapping screen casing inner wall.
With reference to first aspect, the embodiment of the invention provides a kind of possible embodiments of first aspect, wherein above-mentioned
Tapping component includes line shaft, gear, gear ring and rattle balls；
The line shaft is connect with the output end of the screw motor, and the gear ring is fixedly connected with the screw motor,
The gear is connect with the line shaft eccentric gearing, and the gear is engaged with the gear ring；
The rattle balls are eccentrically set on the gear by flexibility bar.
With reference to first aspect, the embodiment of the invention provides a kind of possible embodiments of first aspect, wherein above-mentioned
Relief tube is connected between washing pipe and the screw motor；
Relief hole is offered on the tube body of the relief tube, and spring element and described for blocking is provided in the relief tube
The piston of relief hole；
The piston can be along the relief tube axial downward movement, so that the relief hole is unimpeded under the action of hydraulic；
The piston can move axially upwards under the action of the spring element along the relief tube, to let out described in closure
Press hole.
Second aspect, the embodiment of the invention provides a kind of screen casings to salvage system, including rinsing module and screen casing salvage dress
It sets.
The utility model has the advantages that
A kind of screen casing fishing device provided by the invention, including washing pipe, guiding subassembly and salvaging part；Guiding subassembly fixing sleeve
Set on washing pipe outer wall, and guiding subassembly can be slidingly sealed with screen casing；The outer wall that part is fixed at washing pipe is salvaged, part is salvaged and is located at
Above guiding subassembly, salvaging part can connect with screen casing.
When in use, washing pipe is inserted into the screen casing to be salvaged, the guiding subassembly that washing pipe outer wall is arranged at this time can be with sieve
The inner wall of pipe abuts to form sealing.Then it is filled the water into washing pipe, water flow is sprayed from the bottom of washing pipe fills the water oil well, works as punching
After oil well below pipe fills water, the water flow sprayed from washing pipe can impact upwards along the annular space between washing pipe and screen casing.When to
On water flow can be blocked when encountering guiding subassembly, at this time water flow can be entered through the sieve pore on screen casing casing and screen casing it
Between annular space in, the gravel between casing and screen casing is impacted, keeps knot tying, closely knit gravel loose, and makes to be bonded in sieve
Gravel in pipe outer wall is fallen, and reduces or even eliminates gravel to the frictional force of screen casing, to reduce the resistance for salvaging screen casing.
And washing pipe can continue deeply to impact the gravel between casing and screen casing, when washing pipe reaches setting position
Afterwards, washing pipe outer wall is set at this time and is located above screen casing with the deep salvaging part of washing pipe, and salvages part to connect with screen casing
Together, then staff can easily propose screen casing, complete salvage, and setting in this way is without carrying out set milling
Work, greatly improves working efficiency.
A kind of screen casing provided by the invention salvages system, including rinsing module and screen casing fishing device.Screen casing salvages system
There is above-mentioned advantage compared with prior art, details are not described herein again.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram (wherein salvaging part to be not shown) of screen casing fishing device provided in an embodiment of the present invention；
Fig. 2 is the partial enlarged view in Fig. 1 at A；
Fig. 3 is the partial enlarged view in Fig. 1 at B；
Fig. 4 is the partial enlarged view in Fig. 1 at C；
Fig. 5 is the connection schematic diagram of thrust ring and base tube in screen casing fishing device provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram that component is tapped in screen casing fishing device provided in an embodiment of the present invention；
Fig. 7 uses schematic diagram for screen casing fishing device G.I.H provided in an embodiment of the present invention；
Fig. 8 is the partial enlarged view in Fig. 7 at D；
Fig. 9 is the motion profile of the centre of sphere of rattle balls in screen casing fishing device provided in an embodiment of the present invention.
Icon:
100- washing pipe；101- salvages part；102- liquid injection port；110- limited block；120- switchs ring；130- block；
140- locating part；
200- guiding subassembly；210- elastic sealing element；220- attaching means；221- confinement section；The connection of 222- first
Section；223- annular space section；The second linkage section of 224-；
300- seal assembly；310- base tube；311- sliding slot；320- exterior seal ring；330- inner seal ring；340- is pushed away
Power ring；350- non-return piece；360- anchor log；
400- screw motor；
500- taps component；510- line shaft；520- gear；530- gear ring；540- rattle balls；550- is flexible
Bar；
600- relief tube；610- relief hole；620- spring element；630- piston；
700- screen casing；800- gravel.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " length ", "upper", "lower", "top", "bottom",
The orientation or positional relationship of the instructions such as "inner", "outside", " axial direction " be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, the terms such as term " connection ", " fixation " should do broad sense reason
Solution, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connection；It can be directly
It is connected, the connection inside two elements or the interaction of two elements can also be can be indirectly connected through an intermediary
Relationship.For the ordinary skill in the art, the tool of above-mentioned term in the present invention can be understood as the case may be
Body meaning.
The present invention is described in further detail below by specific embodiment and in conjunction with attached drawing.
Referring to shown in Fig. 1 and Fig. 7, present embodiments providing a kind of screen casing fishing device, including washing pipe 100, guiding subassembly
200 and salvage part 101；200 fixing sleeve of guiding subassembly is set to 100 outer wall of washing pipe, and guiding subassembly 200 can be sliding with screen casing 700
Dynamic sealing；The outer wall that part 101 is fixed at washing pipe 100 is salvaged, part 101 is salvaged and is located at 200 top of guiding subassembly, salvage part 101
It can be connect with screen casing 700.
When in use, washing pipe 100 is inserted into the screen casing 700 to be salvaged, the diversion group of 100 outer wall of washing pipe is set at this time
Part 200 can abut to form sealing with the inner wall of screen casing 700.Then it is filled the water into washing pipe 100, water flow is sprayed from the bottom of washing pipe 100
Oil well is filled the water out, after the oil well of 100 lower section of washing pipe fills water, the water flow sprayed from washing pipe 100 can be along washing pipe 100
Annular space between screen casing 700 impacts upwards.It can be blocked when upward water flow encounters guiding subassembly 200, at this time water flow
It can be entered in the annular space between casing and screen casing 700 through the sieve pore on screen casing 700, to the gravel between casing and screen casing 700
Stone 800 is impacted, and it is loose to make knot tying, closely knit gravel 800, and fall the gravel 800 being bonded on 700 outer wall of screen casing,
Gravel 800 is reduced or even eliminated to the frictional force of screen casing 700, to reduce the resistance for salvaging screen casing 700.
And washing pipe 100 can continue deeply to impact the gravel 800 between casing and screen casing 700, when washing pipe 100 reaches
To after setting position, 100 outer wall of washing pipe is set at this time and is located at 700 top of screen casing with the deep salvaging part 101 of washing pipe 100,
And salvaging part 101 can link together with screen casing 700, then staff can easily propose screen casing 700, complete to salvage
Work, setting in this way are made without carrying out set miller, greatly improve working efficiency.
Wherein, guiding subassembly 200 can be slidingly sealed with the inner wall of screen casing 700, therefore the water being discharged from 100 bottom of washing pipe
Stream can not pass through guiding subassembly 200 to upper runner between washing pipe 100 and screen casing 700, can only be guided by guiding subassembly 200 from sieve
700 side wall of pipe discharge impact gravel 800.
Wherein, it salvages part 101 and is fixed at 100 outer wall of washing pipe, that is, salvage the outer wall that part 101 can directly with washing pipe 100
It is fixedly connected, can also be threadedly coupled with washing pipe 100, as long as the workpiece for salvaging part 101 is located at outside washing pipe 100.
It should be pointed out that salvaging part 101 uses fishing socket, and the bottom of fishing socket is provided with internal screw thread, fishing socket energy
The mode being enough connected through a screw thread and the top of screen casing 700 link together.
Referring to shown in Fig. 1 and Fig. 4, in the optinal plan of the present embodiment, guiding subassembly 200 includes 210 He of elastic sealing element
For limiting the attaching means 220 of 210 position of elastic sealing element；One end of elastic sealing element 210 is fixedly connected with washing pipe 100, separately
One end is located in attaching means 220, and has the trend abutted with 700 inner wall of screen casing always；Attaching means 220 is sheathed on washing pipe 100,
And connect by the first connector with washing pipe 100, the first connector can be cut by fluid pressure, so that attaching means 220 is along punching
Pipe 100 slides.
Specifically, when it is hydraulic by be used for connection constraints part 220 and washing pipe 100 the first connector cut after, attaching means 220
It can be slided on washing pipe 100 under the action of hydraulic, and after attaching means 220 shifts, the elasticity that restrained part 220 constrains
Sealing element 210 is unfolded, and elastic sealing element 210 can be abutted with the inner wall of screen casing 700, so that water flow can not lead to
It crosses, flows to water flow between casing and screen casing 700 from the sieve pore of screen casing 700, impact operation is carried out to gravel 800.
Wherein, elastic sealing element 210 uses rubber cup or rubber full skirt, so that elastic sealing element 210 be made to have and sieve
The trend that 700 inner wall of pipe abuts.
It should be pointed out that the first connector use shear pin, when it is hydraulic reach setting pressure when, hydraulic-driven constraint
The driving force of part 220 can cut shear pin, enable attaching means 220 mobile relative to washing pipe 100, to discharge restrained
Elastic sealing element 210.
Shown in Figure 4, in the optinal plan of the present embodiment, attaching means 220 includes the confinement section 221 set gradually, the
One linkage section 222, annular space section 223 and the second linkage section 224, confinement section 221 is for constraining elastic sealing element 210, annular space section 223
The first annular space is formed with washing pipe 100, the first linkage section 222 and the second linkage section 224 are slidingly sealed with washing pipe 100；First connects
Fitting is set to the first linkage section 222, and washing pipe 100 offers the liquid injection port 102 being connected to the first annular space；It is infused in washing pipe 100
When liquid, liquid can enter in the first annular space from liquid injection port 102 and push attaching means 220 towards the side far from elastic sealing element 210
To movement.
Specifically, attaching means 220 is in a tubular form, and attaching means 220 can pass through annular space section 223 thereon and washing pipe 100
The first annular space is formed, the liquid in washing pipe 100 can be flowed into the first annular space by liquid injection port 102, and liquid can make to constrain
Part 220 generates the trend of slide downward, and with the pressurization of staff, when liquid is applied to the pressure foot of attaching means 220
When cutting off the first connector, the first connector is cut off, 220 slide downward of driving restraint part of liquid meeting at this time, so that by
The elastic sealing element 210 that attaching means 220 constrains can discharge expansion.
Wherein, both the first linkage section 222 and the second linkage section 224 can be formed with washing pipe 100 and be slidingly sealed, and avoid the
Liquid leakage in one annular space.
It is shown in Figure 1, in the optinal plan of the present embodiment, it is provided on washing pipe 100 for 220 position of restriction part
Limited block 110.
Specifically, passing through the position of 110 restriction part 220 of limited block, avoid the first annular space with casing and 700 shape of screen casing
At annular space connection, avoid liquid leakage.
Shown in Figure 1, in the optinal plan of the present embodiment, screen casing fishing device further includes seal assembly 300, sealing group
Part 300 is sheathed on washing pipe 100, and is connect by the second connector with washing pipe 100, and seal assembly 300 is located on guiding subassembly 200
Side；Seal assembly 300 is in a circular table shape, and the maximum outside diameter of seal assembly 300 is greater than the internal diameter of screen casing 700.
Specifically, a part of seal assembly 300 can enter when seal assembly 300 is inserted into screen casing 700 with washing pipe 100
Into screen casing 700, but since seal assembly 300 is in a circular table shape, a part of seal assembly 300 can be blocked with screen casing 700,
Continue to decline washing pipe 100 at this time, the down-force of washing pipe 100 can cut the second connector, so that it is close to complete seal assembly 300
Seal work.
It should be pointed out that the second connector uses shear pin.
Referring to figure 1 and figure 2, in the optinal plan of the present embodiment, seal assembly 300 includes base tube 310, exterior seal ring
320 and inner seal ring 330；Base tube 310 is sheathed on 100 outer wall of washing pipe, and 100 outer wall of washing pipe is provided with for limiting base tube 310
Locating part 140；Inner seal ring 330 is arranged in 310 inner wall of base tube, and exterior seal ring 320 is sheathed on 310 outer wall of base tube.
Specifically, exterior seal ring 320 can be tightly connected with 700 inner wall of screen casing, inner seal ring 330 can be with washing pipe 100
It is tightly connected, water flow is avoided to flow out between washing pipe 100 and base tube 310.
Referring to shown in Fig. 1, Fig. 3 and Fig. 5, in the optinal plan of the present embodiment, seal assembly 300 further includes thrust ring 340；
Thrust ring 340 is set in 310 outer wall of base tube, and the second connector is arranged on thrust ring 340.
Specifically, washing pipe 100, which continues to move down, will drive thrust ring when seal assembly 300 and 700 inner wall of screen casing block
340 move down, so that so that thrust ring 340 is pushed squeezes exterior seal ring 320, so that exterior seal ring 320 and 700 inner wall of screen casing are tight
Tight against being connected together.
After washing pipe 100 drives thrust ring 340 that exterior seal ring 320 is driven to complete seal operation, washing pipe 100 does not continue to move
Dynamic, then washing pipe 100 is rinsed work to the gravel 800 of single position, and gravel 800 more than this position is then rushed pine,
Complete the salvage of setting length screen casing 700.
Wherein, 310 outer wall of base tube offers sliding slot 311, and when thrust ring 340 slides, thrust piece can be sliding along sliding slot 311
It is dynamic.
Referring to figure 1 and figure 2, in the optinal plan of the present embodiment, it is arranged between thrust ring 340 and exterior seal ring 320
There is non-return piece 350, non-return piece 350 is non-return for realizing exterior seal ring 320.
Specifically, thrust ring 340 pushes exterior seal ring 320 to complete seal operation by pushing non-return piece 350, and
It can be avoided exterior seal ring 320 by the setting of non-return piece 350 to restore, exterior seal ring 320 kept tightly to support with 700 inner wall of screen casing
It connects.
Wherein, after washing pipe 100, which drives thrust ring 340 to oppress exterior seal ring 320, to be unfolded, washing pipe 100 will continue to move down, this
When thrust ring 340 can not be continued to move down by the blocking of exterior seal ring 320, washing pipe 100 can cut the second connector at this time, and
It can be avoided exterior seal ring 320 by the setting of non-return piece 350 to reset.
It should be noted that washing pipe 100 can be downward after thrust ring 340 oppresses the completion seal operation of exterior seal ring 320
It is mobile, so that the screen casing 700 to longer distance is rinsed, allows one action to salvage greater length of screen casing 700, mention
High working efficiency.
Wherein, non-return piece 350 is in C font, and has certain elasticity, and inner wall is provided with first latching tooth, base tube 310
Outer wall is provided with the second latch corresponding with first latching tooth, when thrust ring 340 drives non-return piece 350 to move down, first latching tooth meeting
It moves down, after thrust ring 340 is unpowered, when the release elastic potential energy driving non-return piece 350 of exterior seal ring 320 moves up,
Second latch of base tube 310 can stop the first latching tooth of non-return piece 350, so that non-return piece 350 can not move up.
Referring to shown in Fig. 1 and Fig. 3, in the optinal plan of the present embodiment, seal assembly 300 further includes being fixed at base tube
The anchor log 360 of 310 bottoms, anchor log 360 can be abutted with locating part 140；100 outer wall of washing pipe is arranged with for controlling anchoring
The switch ring 120 that part 360 opens and closes, switch ring 120 is sheathed on base tube 310, and is connect by third connector with base tube 310,
The block 130 for making to switch the reset of ring 120 is provided on base tube 310；In salvage, is cut under the action of hydraulic
After three connectors, switch ring 120 and washing pipe 100 being capable of opposite slidings.
Specifically, the anchor log 360 that 310 bottom of base tube is arranged in enters in screen casing 700 at first, and 360 meeting of anchor log
It contacts with the inner wall of screen casing 700, and gos deep into anchor log 360, anchor log 360 can form larger with 700 inner wall of screen casing
Frictional force, and the numerical value of this frictional force be greater than the second connector shearing stress, therefore when washing pipe 100 need to rinse it is longer
Washing pipe 100 can cut the second connector and continue deeper into when screen casing 700, and washing pipe 100 can decline with switch ring 120, this
When, switch ring 120 can be abutted with anchor log 360, and as washing pipe 100 drives the continuous decrease of switch ring 120, switch ring
Frictional force between 120 and anchor log 360 will increase (switch ring 120 can strut anchor log 360 so that anchor log 360 and screen casing
700 inner walls tightly abut), when the frictional force between switch ring 120 and anchor log 360 is greater than the shearing stress of third connector
When, third connector can be cut, and switched the state that ring 120 persistently keeps strutting anchor log 360 at this time, realized seal assembly
300 anchoring.
After washing pipe 100 completes flushing work, when staff can not propose screen casing 700, staff can above propose punching
Pipe 100, it is upper mention washing pipe 100 during, the block 130 on washing pipe 100 will drive switch ring 120 and move up, to make
Ring 120 and anchor log 360 is switched to be detached from, to reduce the frictional force of anchor log 360 Yu 700 inner wall of screen casing, then washing pipe 100 after
Continuous above to mention, the locating part 140 on washing pipe 100 can be abutted with anchor log 360, to drive anchor log 360 to move up, so that close
Sealing assembly 300 can propose that then staff continues above to mention washing pipe 100 out of screen casing 700, and washing pipe 100 is proposed oil well.
Referring to shown in Fig. 6 and Fig. 7, in the optinal plan of the present embodiment, 100 bottom of washing pipe is provided with screw motor 400, spiral shell
The output end of bar motor 400 is connected with the percussion component 500 for tapping 700 inner wall of screen casing.
Percussion work is carried out to screen casing 700 specifically, driving by screw motor 400 and tapping component 500, so that screen casing
The gravel 800 of 700 outer walls becomes loosely, and the gravel 800 for being bonded in 700 outer wall of screen casing can be made to fall off.
Referring to shown in Fig. 6 and Fig. 7, in the optinal plan of the present embodiment, tapping component 500 includes line shaft 510, gear
520, gear ring 530 and rattle balls 540；Line shaft 510 is connect with the output end of screw motor 400, gear ring 530 and screw motor
400 are fixedly connected, and gear 520 is connect with 510 eccentric gearing of line shaft, and gear 520 is engaged with gear ring 530；Rattle balls 540 are logical
Flexibility bar 550 is crossed to be eccentrically set on gear 520.
Specifically, water impact screw motor 400, to make screw motor 400 start to work, screw motor 400 can drive
Dynamic 510 rotation of line shaft, line shaft 510 will drive the rotation of gear 520, enable gear 520 and 530 engagement rotation of gear ring,
And gear 520 is different from the rotation center of line shaft 510, and gear 520 can drive rattle balls by flexibility bar 550
540 rotations, flexibility bar 550 is different from the rotation center of gear 520, therefore when rattle balls 540 are rotated around line shaft 510
When, rattle balls 540 can be realized: occur to hit close to 700 inner wall of screen casing, with 700 inner wall of screen casing, far from 700 inner wall of screen casing, again
Motion process as close 700 inner wall of screen casing, so that rattle balls 540 can tap screen casing 700, to make screen casing 700
Outer gravel 800 loosens, to reduce the frictional force that gravel 800 acts on 700 outer wall of screen casing, enables staff
Screen casing 700 is salvaged away faster.
It should be pointed out that flexibility bar 550 can also use helical spring using the preferable pole stock of elasticity.
When rattle balls 540 are advanced, the centre of sphere travel track of rattle balls 540 is shown in Fig. 9, when rattle balls 540 march to
When outermost, rattle balls 540 can be hit with the inner wall of screen casing 700, to complete the percussion work to screen casing 700.
Shown in referring to figs. 7 and 8, in the optinal plan of the present embodiment, it is connected between washing pipe 100 and screw motor 400
Relief tube 600；Relief hole 610 is offered on the tube body of relief tube 600, spring element 620 is provided in relief tube 600 and for sealing
The piston 630 of stifled relief hole 610；Piston 630 can be along 600 axial downward movement of relief tube, so that pressure release under the action of hydraulic
Hole 610 is unimpeded；Piston 630 can move axially upwards under the action of spring element 620 along relief tube 600, to block relief hole
610。
Wherein, by the setting of relief tube 600 can reduce or even eliminate because the water flow pressure in washing pipe 100 is excessive when pair
It is damaged caused by screw motor 400.
Specifically, liquid can oppress the receipts of spring element 620 when the hydraulic coupling in washing pipe 100 is greater than the elastic force of spring element 620
Contracting then exposes relief hole 610 on relief tube 600, the liquid in washing pipe 100 can be from pressure release so that piston 630 be made to move down
It flows out to reduce the pressure of liquid in washing pipe 100 in hole 610.After the fluid pressure in washing pipe 100 reduces, spring element 620 can be driven
Piston 630 moves up, so that piston 630 be made to block relief hole 610.
Present embodiments provide a kind of screen casing salvaging system, including rinsing module and screen casing fishing device.Screen casing salvages system
System has above-mentioned advantage compared with prior art, and details are not described herein again.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify to technical solution documented by previous embodiment, or some or all of the technical features are equal
Replacement；And these are modified or replaceed, the model for technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (10)
1. a kind of screen casing fishing device characterized by comprising washing pipe (100), guiding subassembly (200) and salvaging part (101)；
Guiding subassembly (200) fixing sleeve is set to the washing pipe (100) outer wall, and the guiding subassembly (200) can be with sieve
Pipe (700) is slidingly sealed；
The outer wall salvaged part (101) and be fixed at the washing pipe (100), the salvaging part (101) are located at the diversion group
Above part (200), the salvaging part (101) can connect with screen casing (700).
2. screen casing fishing device according to claim 1, which is characterized in that the guiding subassembly (200) includes that elasticity is close
Sealing (210) and attaching means (220) for limiting the elastic sealing element (210) position；
One end of the elastic sealing element (210) is fixedly connected with the washing pipe (100), and the other end is located at the attaching means
(220) in, and there is the trend abutted with the screen casing (700) inner wall always；
The attaching means (220) is sheathed on the washing pipe (100), and is connect by the first connector with the washing pipe (100), institute
Stating the first connector can be cut by fluid pressure, so that the attaching means (220) is slided along the washing pipe (100).
3. screen casing fishing device according to claim 2, which is characterized in that the attaching means (220) includes setting gradually
Confinement section (221), the first linkage section (222), annular space section (223) and the second linkage section (224), the confinement section (221) uses
In constraint elastic sealing element (210), the annular space section (223) and the washing pipe (100) form the first annular space, first connection
Section (222) and second linkage section (224) are slidingly sealed with the washing pipe (100)；
First connector is set to first linkage section (222), and the washing pipe (100) offers and first annular space
The liquid injection port (102) of connection；
In the washing pipe (100) interior fluid injection, liquid can enter in first annular space and push from the liquid injection port (102)
The attaching means (220) is mobile towards the direction far from the elastic sealing element (210).
4. screen casing fishing device according to claim 3, which is characterized in that be provided on the washing pipe (100) for limiting
Make the limited block (110) of the attaching means (220) position.
5. screen casing fishing device according to claim 1, which is characterized in that further include seal assembly (300), the sealing
Component (300) is sheathed on the washing pipe (100), and is connect by the second connector with the washing pipe (100), the seal assembly
(300) it is located above the guiding subassembly (200)；
The seal assembly (300) is in a circular table shape, and the maximum outside diameter of the seal assembly (300) is greater than the interior of screen casing (700)
Diameter, in salvage, the inner wall of the seal assembly (300) can be slidingly sealed with the washing pipe (100), and outer wall can be with
Screen casing (700) fixing seal.
6. screen casing fishing device according to claim 5, which is characterized in that the seal assembly (300) includes base tube
(310), exterior seal ring (320) and inner seal ring (330)；
The base tube (310) is sheathed on the washing pipe (100) outer wall, and the washing pipe (100) outer wall is provided with for limiting
State the locating part of base tube (310)；
The inner seal ring (330) is arranged in the base tube (310) inner wall, and the exterior seal ring (320) is sheathed on the base tube
(310) outer wall.
7. screen casing fishing device according to claim 6, which is characterized in that the seal assembly (300) further includes thrust
Ring (340)；
The thrust ring (340) is set in the base tube (310) outer wall, and second connector is arranged in the thrust ring
(340) on.
8. screen casing fishing device according to claim 6, which is characterized in that the seal assembly (300) further includes fixing
Anchor log (360) in the base tube (310) bottom is set, and the anchor log (360) can support with the locating part (140)
It connects；
Washing pipe (100) outer wall is arranged with the switch ring (120) for controlling the anchor log (360) folding, the switch
Ring (120) is sheathed on the base tube (310), and is connect by third connector with the base tube (310), the base tube
(310) block (130) for resetting switch ring (120) is provided on；
In salvage, after the third connector is cut under the action of hydraulic, the switch ring (120) and the washing pipe
It (100) being capable of opposite sliding.
9. screen casing fishing device according to claim 1-8, which is characterized in that washing pipe (100) bottom is set
It is equipped with screw motor (400), the output end of the screw motor (400) is connected with the percussion for tapping screen casing (700) inner wall
Component (500)；
The percussion component (500) includes line shaft (510), gear (520), gear ring (530) and rattle balls (540)；
The line shaft (510) connect with the output end of the screw motor (400), the gear ring (530) and the screw rod horse
Be fixedly connected up to (400), the gear (520) connect with the line shaft (510) eccentric gearing, and the gear (520) with
Gear ring (530) engagement；
The rattle balls (540) are eccentrically set on the gear (520) by flexibility bar (550).
10. a kind of screen casing salvages system, which is characterized in that including rinsing module and the described in any item screen casings of claim 1-9
Fishing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910981508.7A CN110529064A (en) | 2019-10-16 | 2019-10-16 | Screen casing fishing device and screen casing salvage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910981508.7A CN110529064A (en) | 2019-10-16 | 2019-10-16 | Screen casing fishing device and screen casing salvage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110529064A true CN110529064A (en) | 2019-12-03 |
Family
ID=68671897
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910981508.7A Pending CN110529064A (en) | 2019-10-16 | 2019-10-16 | Screen casing fishing device and screen casing salvage system |
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| CN (1) | CN110529064A (en) |
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