CN103775062B - Coiled tubing pressure piston conveying device and method - Google Patents
Coiled tubing pressure piston conveying device and method Download PDFInfo
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- CN103775062B CN103775062B CN201310316747.3A CN201310316747A CN103775062B CN 103775062 B CN103775062 B CN 103775062B CN 201310316747 A CN201310316747 A CN 201310316747A CN 103775062 B CN103775062 B CN 103775062B
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Abstract
The invention provides a coiled tubing pressure piston conveying device and method, and belongs to the technical field of oil fields. The right end of a three-way device is a coiled tubing port, the left end of the three-way device is an incoming line port, a pressing cap is connected with the incoming line port of the three-way device, the right end of the three-way device is connected with a backing cap, the coiled tubing port is connected with a coiled tubing, a sealing O-shaped ring is connected between a sealing clamping groove of the three-way device and the coiled tubing, a tapered toothed sleeve is connected between the backing cap and the coiled tubing, a piston is connected with the inside of an inner hole of the coiled tubing and is connected with a pull rod, the other end of the pull rod is connected with a steel wire or a rope, a rubber piston is connected with an arc leather cup or a pointed leather cup, an insertion-connection tail is connected with an insertion-connection opening of another rubber piston to form a multistage rubber piston, one end of the piston is a wire connection fixing opening, a horizontal section is arranged on the periphery of the other end of the piston, the periphery of the piston is provided with a rail and a welded joint passing slot, and a wire penetrating hole is arranged in the center of the wire connection fixing opening. Accordingly, labor intensity and operation cost are effectively reduced and flaw detection and other operations can be carried out on the coiled tubing.
Description
Technical field
The present invention relates to a kind of coiled tubing pressure type piston conveyer device and method, belong to oilfield technology field.
Background technology
Coiled tubing is the minor-diameter steel-tube with flexibility that a kind of low-carbon alloy steel makes, oilfield horizontal well downhole testing
Operation needs uninterruptedly continuously placing thermocouple inside long oil pipe or capillary tube is used for thermometric, at this moment needs in vertical empty well
Enter 1000 meters of coiled tubings under cylinder, rely on gravity to put into the steel wire of one 1000 meters long extension verticals, further take out coiled tubing tiling
To well site, using steel wire, one pulls 1000 meters of thermocouples entrance coiled tubings, finally uses under prefabricated coiled tubing
Enter horizontal well and carry out temperature and pressure test, throw steel wire sometimes because being limited by other factors such as regions using empty well cylinder gravity type
And cannot implement, it is long that this work implements the time, high labor intensive, needs 10 people, crane, and carding engine coordinates the work of 8 hours
Work can complete.
Content of the invention
In order to overcome the deficiencies in the prior art, the present invention provides a kind of coiled tubing pressure type piston conveyer device and side
Method.
A kind of coiled tubing pressure type piston conveyer device, the right-hand member of three-way device is coiled tubing interface；Three-way device
Left end be incoming line, the incoming line of pressure cap connecting tee device, the right-hand member of three-way device connects back of the body cap, and coiled tubing interface is even
Connect coiled tubing, be connected with seal O-ring between the sealing draw-in groove of three-way device and coiled tubing, between back of the body cap and coiled tubing
Be connected with taper facing, in the endoporus of coiled tubing, connect piston, piston cylinder lever connecting rod, the other end of pull bar connect steel wire or
Rope, is connected with sealing gasket between pressure cap and three-way device, three-way device upper end has gas injection port, steel wire or lightweight rope to pass through threeway to fill
The through wires hole of the left end endoporus put, the endoporus of taper facing has tooth shape agnail, and the circumference of taper facing has fluting；
There is inside coiled tubing one<The weld seam muscle 90 of 2mm, has irregular burr, length 500-1000 rice；
The piston of tension skeleton：Piston carries out MULTI CONTACT formula sealing, the anti-canting cap of steel using vulcanite ring
Rubber ring is prevented to be turned over, miniature instrument is installed in the top boring of anti-canting cap, pull bar is with framing structure with rubber ring sealing even
Connect, skeleton is connected with framing structure with rubber ring sealing,
One end of rubber piston is grafting tail, and the other end of rubber piston is interface, and rubber piston is connected with arc leather
Bowl or pointed leather cup, the interface that grafting WEILIAN connects another rubber piston forms multistage rubber piston,
One end of piston is line fixing port, and the other end excircle of piston has horizontal segment, and the excircle of piston has track
Pass through groove with weld seam, there is through wires hole at the center of line fixing port.
A kind of method of coiled tubing pressure type piston conveyer device, containing following steps；
Gas is used as driving force, promotes piston to be moved inside coiled tubing, by steel wire, lightweight rope or miniature
Equipment divides brings long coiled tubing once or twice into,
Piston carries out MULTI CONTACT formula sealing using vulcanite ring, can produce micro- deformation and effectively gas be carried out
Sealing, the anti-canting cap of steel can prevent rubber ring to be turned over, and the top boring of anti-canting cap is installed miniature instrument additional to meet
Produce or flaw detection need, pull bar is tightly connected with rubber ring with framing structure, skeleton is connected with framing structure with rubber ring sealing,
This kind of mode frictional force is bigger than normal, wear-resisting, is relatively suitable for traction steel wire；
Multistage leather cup type structure can reduce the difficulty of Piston Machining, and connected series can be with effective control leather cup and continuously oil
The size of pipe friction power, each leather cup junction vertical open pores insertion metal tube fixation can make leather cup air pressure share equally, and stress is more
Plus uniformly, single piston also can use, appropriate bands lightweight rope and miniature instrument, the various environment of flexible adaptation, this kind of piston is to gas
Pump is less demanding；
Carry out band wire using the teflon piston using non-contacting seal when high-power air compressor machine or aerator,
Connect coiled tubing on the right of the three-way device that coiled tubing is connected, sealing ring can bear certain pressure, by
Gas is squeezed in top, and left part compresses sealing to cotton rope；
Facing locking device uses taper facing, and the endoporus of described taper facing has tooth shape agnail, using tooth shape steel ladder
Agnail, coiled tubing is locked in the deformation using taper facing steel ring；
Gas push piston-advance step；
Piston is sent into coiled tubing, ties up cotton rope or instrument, cotton rope penetrates pressure cap and tightens sealing；
Connecting tee device, use conical teeth cover locking coiled tubing, O-ring carry out 2 grades sealing；
Connect injecting hole, promote piston-advance using strength；
The anti-canting cap that its front portion of rubber seal piston of ring structures installs additional and pull bar skeleton connect, and top connection is micro-
Type instrument；
Its multistage end to end pointed and arc leather cup of coiled tubing pressure type piston, the perforate air pressure of side junction
Share equally；
The pre-small post-large non-contacting seal with horizontal segment fluting of coiled tubing pressure type piston conveyer device, before and after it
Perforate is easy to threading and glue fixing seal；
The three way type structure of threading and gas injection common-use tunnel, deforms locking coiled tubing, left part pressure cap using taper facing
Compression is to traction linear sealing.
The present invention is used gas as driving force, promotes piston to be moved inside coiled tubing, by steel wire, lightweight rope
Or micromodule equipment divides and brings long coiled tubing once or twice into, operation process eliminates the operation of empty well cylinder and crane, has
Reduce labor intensity and operating cost to effect, and the operation that can coiled tubing be carried out detecting a flaw etc..
Brief description
When considered in conjunction with the accompanying drawings, by referring to detailed description below, can more completely more fully understand the present invention with
And easily learn the adjoint advantage of many of which, but accompanying drawing described herein is used for providing a further understanding of the present invention,
Constitute the part of the present invention, the schematic description and description of the present invention is used for explaining the present invention, does not constitute to this
Bright improper restriction, such as figure are wherein：
Fig. 1 is the combination unit structural representation of the present invention.
Fig. 2 is the coiled tubing structural representation of the present invention.
Fig. 3 is the rubber annular rubber contact formula sealing piston structural representation of the present invention.
Fig. 4 is the single sealing piston structural representation of the present invention.
Fig. 5 is the multistage connected leather bucket structural representation of the present invention.
Fig. 6 a is the non-contacting seal fluting band wire teflon piston structural representation of the present invention.
Fig. 6 b is the non-contacting seal fluting band wire teflon piston structural representation of the present invention.
Fig. 7 is the coiled tubing three-way device structural representation of the present invention.
Fig. 8 is the taper facing facing steel ring structure schematic diagram of the present invention.
Fig. 9 is the taper facing steel ring cross section structure schematic diagram of the present invention.
The present invention is further described with reference to the accompanying drawings and examples.
Specific embodiment
Obviously, those skilled in the art belong to the guarantor of the present invention based on the many modifications and variations that spirit of the invention is done
Shield scope.
Embodiment 1：As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6 a, Fig. 6 b, Fig. 7, Fig. 8 and Fig. 9,
The present invention is used gas as driving force, promotes piston to be moved inside coiled tubing, by steel wire, lightweight rope
Or micromodule equipment divides and brings long coiled tubing once or twice into, operation process eliminates the operation of empty well cylinder and crane, has
Reduce labor intensity and operating cost to effect, and the operation that can coiled tubing be carried out detecting a flaw etc..
As shown in Fig. 1, Fig. 7, Fig. 8 and Fig. 9, the right-hand member of three-way device 9 is coiled tubing interface 34；A left side for three-way device 9
Hold as incoming line 31, the incoming line 31 of pressure cap 1 connecting tee device 9, the right-hand member of three-way device 9 connects back of the body cap 7, and coiled tubing connects
Mouth 34 connection coiled tubings 5, are connected with seal O-ring 3, back of the body cap 7 between the sealing draw-in groove 33 of three-way device 9 and coiled tubing 5
It is connected with taper facing 4 and coiled tubing 5 between, in the endoporus of coiled tubing 5, connect piston 6, piston 6 cylinder lever connecting rod 8, pull bar
8 other end connects steel wire or lightweight rope 11, is connected with sealing gasket 10, three-way device 9 upper end between pressure cap 1 and three-way device 9
Gas injection port 2, steel wire or lightweight rope 11 is had to pass through the through wires hole 32 of the left end endoporus of three-way device 9, the endoporus of taper facing 4 has tooth
Shape agnail 35, the circumference of taper facing 4 has fluting 36.
As shown in Fig. 2 coiled tubing schematic diagram, there is inside coiled tubing 5 one<The weld seam muscle 90 of 2mm, has
Small-sized irregular burr, length 500-1000 rice；
As shown in figure 3, the piston 6 of tension skeleton：Piston 6 carries out MULTI CONTACT formula sealing, energy using vulcanite ring
Enough produce micro- deformation effectively gas to be sealed, the anti-canting cap 13 of steel can prevent rubber ring to be turned over, anti-canting
The top boring of cap 13 is installed miniature instrument 15 additional and is produced or flaw detection needs to meet, and pull bar 8 is close with rubber ring with skeleton 14 structure
Envelope 12 connection, skeleton 14 is connected with skeleton 14 structure with rubber ring sealing 12, and this kind of mode frictional force is bigger than normal, wear-resisting, more suitable
Traction steel wire.
As shown in figure 4,
One end of rubber piston is grafting tail 19, and the other end of rubber piston is interface 21, and rubber piston is connected with arc
Shape leather cup or pointed leather cup 20, the interface 21 that grafting tail 19 connects another rubber piston forms multistage rubber piston,
Multistage leather cup type structure can reduce the difficulty of Piston Machining, and connected series can be with effective control leather cup and continuously oil
The size of pipe friction power, each leather cup junction vertical open pores insertion metal tube fixation can make leather cup air pressure share equally, and stress is more
Plus uniformly, single piston also can use, appropriate bands lightweight rope and miniature instrument, the various environment of flexible adaptation, this kind of piston is to gas
Pump is less demanding.
As shown in Fig. 6 a, Fig. 6 b,
One end of piston 6 is line fixing port 41, and the other end excircle of piston 6 has horizontal segment 43, the excircle of piston 6
Track 42 and weld seam is had to pass through groove 45, there is through wires hole 44. at the center of line fixing port 41
Light-duty hard piston：Using the polytetrafluoro that can use non-contacting seal when high-power air compressor machine or aerator
Ethylene piston carries out band wire, and this kind of Piston Machining is simple, and frictional force is very little, band wire efficiency high, send lightweight rope for band.
5th, connect coiled tubing on the right of the connected three-way device of coiled tubing, sealing ring can bear certain pressure,
Gas is squeezed into by top, left part compresses sealing to cotton rope.
6th, facing locking device uses taper facing, and conical teeth is cased with tooth shape agnail, and described tooth shape agnail is tooth shape steel rank
Terraced agnail, coiled tubing is locked in the deformation using taper facing steel ring.
Gas push piston-advance step；
Piston is sent into coiled tubing, ties up cotton rope or instrument, cotton rope penetrates pressure cap and tightens sealing.
Connecting tee device, use conical teeth cover locking coiled tubing, O-ring carry out 2 grades sealing
Connect injecting hole, promote piston-advance using strength.
Coiled tubing pressure type piston conveyer device：Shown in Fig. 2, the rubber seal piston structure of its ring structures, before it
Anti-canting cap that portion installs additional and the structure that pull bar skeleton connects, and top can connect the helicitic texture of miniature instrument.
Shown in coiled tubing pressure type piston conveyer device Fig. 4, Fig. 5, its multistage end to end pointed and arc leather cup
Structure, the perforate air pressure of side junction shares structure equally.
Coiled tubing pressure type piston conveyer device：Shown in Fig. 6, it is pre-small post-large contactless with horizontal segment fluting
The solid structure of sealing, perforate before and after it is easy to threading and the structure of glue fixing seal.
Coiled tubing pressure type piston conveyer device：Shown in Fig. 7, Fig. 8 and Fig. 9, the three of its threading and gas injection common-use tunnel
Formula, and the structure of coiled tubing is locked using the deformation of taper facing, the knot to traction linear sealing for the left part pressure cap compression
Structure.
Embodiment 2：As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6 a, Fig. 6 b, Fig. 7, Fig. 8 and Fig. 9,
A kind of coiled tubing pressure type piston conveyer device, the right-hand member of three-way device 9 is coiled tubing interface 34；Threeway fills
The left end putting 9 is incoming line 31, the incoming line 31 of pressure cap 1 connecting tee device 9, and the right-hand member of three-way device 9 connects back of the body cap 7, even
Continuous tubing interface 34 connects coiled tubing 5, is connected with seal O-ring between the sealing draw-in groove 33 of three-way device 9 and coiled tubing 5
3, it is connected with taper facing 4 between back of the body cap 7 and coiled tubing 5, in the endoporus of coiled tubing 5, connects piston 6, piston 6 connection is drawn
Bar 8, the other end of pull bar 8 connects steel wire or lightweight rope 11, is connected with sealing gasket 10 between pressure cap 1 and three-way device 9, and threeway fills
Putting 9 upper ends has gas injection port 2, steel wire or lightweight rope 11 to pass through the through wires hole 32 of the left end endoporus of three-way device 9, taper facing 4
Endoporus has tooth shape agnail 35, and the circumference of taper facing 4 has fluting 36；
There is inside coiled tubing 5 one<The weld seam muscle 90 of 2mm, has some small-sized irregular burrs, length 500-
1000 meters；
The piston 6 of tension skeleton：Piston 6 carries out MULTI CONTACT formula sealing, the anti-canting of steel using vulcanite ring
Cap 13 prevents rubber ring to be turned over, and miniature instrument 15 is installed in the top boring of anti-canting cap 13, and pull bar 8 is with skeleton 14 structure and rubber
Glue ring sealing 12 connection, skeleton 14 is connected with skeleton 14 structure with rubber ring sealing 12,
One end of rubber piston is grafting tail 19, and the other end of rubber piston is interface 21, and rubber piston is connected with arc
Shape leather cup or pointed leather cup 20, the interface 21 that grafting tail 19 connects another rubber piston forms multistage rubber piston,
One end of piston 6 is line fixing port 41, and the other end excircle of piston 6 has horizontal segment 43, the excircle of piston 6
Track 42 and weld seam is had to pass through groove 45, there is through wires hole 44 at the center of line fixing port 41.
A kind of method of coiled tubing pressure type piston conveyer device is it is characterised in that contain following steps；
Gas is used as driving force, promotes piston to be moved inside coiled tubing, by steel wire, lightweight rope or miniature
Equipment divides brings long coiled tubing once or twice into,
Piston 6 carries out MULTI CONTACT formula sealing using vulcanite ring, can produce micro- deformation and effectively gas be entered
Row sealing, the anti-canting cap 13 of steel can prevent rubber ring to be turned over, and miniature instrument is installed in the top boring of anti-canting cap 13 additional
15 produce or flaw detection needs to meet, and pull bar 8 is connected with rubber ring sealing 12 with skeleton 14 structure, and skeleton 14 is sealed with rubber ring
12 are connected with skeleton 14 structure, and this kind of mode frictional force is bigger than normal, wear-resisting, are relatively suitable for traction steel wire；
Multistage leather cup type structure can reduce the difficulty of Piston Machining, and connected series can be with effective control leather cup and continuously oil
The size of pipe friction power, each leather cup junction vertical open pores insertion metal tube fixation can make leather cup air pressure share equally, and stress is more
Plus uniformly, single piston also can use, appropriate bands lightweight rope and miniature instrument, the various environment of flexible adaptation, this kind of piston is to gas
Pump is less demanding；
Carry out band wire using the teflon piston using non-contacting seal when high-power air compressor machine or aerator,
Connect coiled tubing on the right of the three-way device that coiled tubing is connected, sealing ring can bear certain pressure, by
Gas is squeezed in top, and left part compresses sealing to cotton rope；
Facing locking device uses taper facing, and conical teeth is cased with tooth shape agnail, and described tooth shape agnail is tooth shape steel ladder
Agnail, coiled tubing is locked in the deformation using taper facing steel ring；
Gas push piston-advance step；
Piston is sent into coiled tubing, ties up cotton rope or instrument, cotton rope penetrates pressure cap and tightens sealing；
Connecting tee device, use conical teeth cover locking coiled tubing, O-ring carry out 2 grades sealing；
Connect injecting hole, promote piston-advance using strength；
The anti-canting cap that its front portion of rubber seal piston of ring structures installs additional and pull bar skeleton connect, and top connection is micro-
Type instrument；
Its multistage end to end pointed and arc leather cup of coiled tubing pressure type piston, the perforate air pressure of side junction
Share equally；
The pre-small post-large non-contacting seal with horizontal segment fluting of coiled tubing pressure type piston conveyer device, before and after it
Perforate is easy to threading and glue fixing seal；
The three way type structure of threading and gas injection common-use tunnel, coiled tubing, left part pressure are locked in the deformation using taper facing
Cap compression is to traction linear sealing.
As described above, being explained to embodiments of the invention, but as long as essentially without depart from this
Bright inventive point and effect can have a lot of deformation, and this will be readily apparent to persons skilled in the art.Therefore, this
The variation of sample is also integrally incorporated within protection scope of the present invention.
Claims (6)
1. a kind of coiled tubing pressure type piston conveyer device is it is characterised in that the right-hand member of three-way device is coiled tubing interface；
The left end of three-way device is incoming line, the incoming line of pressure cap connecting tee device, and the right-hand member of three-way device connects back of the body cap, continuously oil
Interface tube connects coiled tubing, is connected with seal O-ring between the sealing draw-in groove of three-way device and coiled tubing, back of the body cap with continuous
It is connected with taper facing between oil pipe, connect piston, piston cylinder lever connecting rod in the endoporus of coiled tubing, the other end of pull bar connects
Steel wire or lightweight rope, are connected with sealing gasket between pressure cap and three-way device, there are gas injection port, steel wire or lightweight rope in three-way device upper end
Through the through wires hole of the left end endoporus of three-way device, the endoporus of taper facing has tooth shape agnail, and the circumference of taper facing has fluting；
There is inside coiled tubing one<The weld seam muscle of 2mm, has irregular burr, length 500-1000 rice；
Described piston is the skeleton piston of tension：The skeleton piston of described tension carries out MULTI CONTACT formula using vulcanite ring
Sealing, the anti-canting cap of steel prevents rubber ring to be turned over, and miniature instrument is installed in the top boring of anti-canting cap, and pull bar is with skeleton
Structure is tightly connected with rubber ring, and skeleton is tightly connected with rubber ring.
2. a kind of coiled tubing pressure type piston conveyer device is it is characterised in that the right-hand member of three-way device is coiled tubing interface；
The left end of three-way device is incoming line, the incoming line of pressure cap connecting tee device, and the right-hand member of three-way device connects back of the body cap, continuously oil
Interface tube connects coiled tubing, is connected with seal O-ring between the sealing draw-in groove of three-way device and coiled tubing, back of the body cap with continuous
It is connected with taper facing between oil pipe, connect piston, piston cylinder lever connecting rod in the endoporus of coiled tubing, the other end of pull bar connects
Steel wire or lightweight rope, are connected with sealing gasket between pressure cap and three-way device, there are gas injection port, steel wire or lightweight rope in three-way device upper end
Through the through wires hole of the left end endoporus of three-way device, the endoporus of taper facing has tooth shape agnail, and the circumference of taper facing has fluting；
There is inside coiled tubing one<The weld seam muscle of 2mm, has irregular burr, length 500-1000 rice；
Described piston is rubber piston, and one end of described rubber piston is grafting tail, and the other end is interface, and rubber piston connects
There are arc leather cup or pointed leather cup, the interface that grafting WEILIAN connects another rubber piston forms multistage rubber piston.
3. a kind of coiled tubing pressure type piston conveyer device is it is characterised in that the right-hand member of three-way device is coiled tubing interface；
The left end of three-way device is incoming line, the incoming line of pressure cap connecting tee device, and the right-hand member of three-way device connects back of the body cap, continuously oil
Interface tube connects coiled tubing, is connected with seal O-ring between the sealing draw-in groove of three-way device and coiled tubing, back of the body cap with continuous
It is connected with taper facing between oil pipe, connect piston, piston cylinder lever connecting rod in the endoporus of coiled tubing, the other end of pull bar connects
Steel wire or lightweight rope, are connected with sealing gasket between pressure cap and three-way device, there are gas injection port, steel wire or lightweight rope in three-way device upper end
Through the through wires hole of the left end endoporus of three-way device, the endoporus of taper facing has tooth shape agnail, and the circumference of taper facing has fluting；
There is inside coiled tubing one<The weld seam muscle of 2mm, has irregular burr, length 500-1000 rice；
Described piston is the teflon piston of non-contacting seal, the teflon piston of described non-contacting seal
One end is line fixing port, and other end excircle has a horizontal segment, the teflon piston of described non-contacting seal cylindrical
Track and weld seam is had to pass through groove in week, there is through wires hole at the center of line fixing port.
4. adopt a kind of coiled tubing pressure type piston carrying method of claim 1 described device it is characterised in that containing with
Lower step；
Gas is used as driving force, promotes piston to be moved inside coiled tubing, steel wire and miniature instrument are divided once
Or bring coiled tubing into twice,
Using the skeleton piston of tension, the skeleton piston of described tension carries out MULTI CONTACT formula sealing using vulcanite ring,
Micro- deformation can be produced effectively gas is sealed, the anti-canting cap of steel is prevented from rubber ring and is turned over, anti-canting
The top boring of cap is installed miniature instrument additional and is produced or flaw detection needs to meet, and pull bar is tightly connected with rubber ring with framing structure,
Skeleton is tightly connected with rubber ring, and this kind of mode frictional force is bigger than normal, wear-resisting, is relatively suitable for traction steel wire；
Connect coiled tubing on the right of the three-way device that coiled tubing is connected, seal O-ring can bear certain pressure, by upper
Side squeezes into gas, and left part compresses sealing to steel wire；
Facing locking device uses taper facing, and the endoporus of described taper facing has tooth shape agnail, and described tooth shape agnail is tooth shape
Steel ladder agnail, coiled tubing is locked in the deformation using taper facing steel ring；
Gas push piston-advance step；
Piston is sent into coiled tubing, ties up steel wire and miniature instrument, lightweight rope penetrates pressure cap and tightens sealing；
Connecting tee device, use conical teeth cover locking coiled tubing, seal O-ring carry out 2 grades sealing；
Connect injecting hole, promote piston-advance using strength；
The anti-canting cap that the front portion of the skeleton piston of tension installs additional and pull bar skeleton connect, wherein, the top of described anti-canting cap
Connect miniature instrument；
The three way type structure of threading and gas injection common-use tunnel, coiled tubing, left part pressure cap pressure are locked in the deformation using taper facing
Tightly steel wire is sealed.
5. adopt a kind of coiled tubing pressure type piston carrying method of claim 2 described device it is characterised in that containing with
Lower step；
Gas is used as driving force, promotes piston to be moved inside coiled tubing, lightweight rope and miniature instrument are divided one
It is secondary or bring coiled tubing into twice,
Using rubber piston, using multistage leather cup type structure, multistage leather cup type structure can reduce the difficulty of Piston Machining, is connected
Series is capable of the size of effective control leather cup and coiled tubing frictional force, and each leather cup junction vertical open pores insertion metal tube is solid
So that leather cup air pressure is shared equally, be more uniformly stressed, appropriate bands lightweight rope and miniature instrument, the various environment of flexible adaptation, this
Plant piston less demanding to air pump；
Connect coiled tubing on the right of the three-way device that coiled tubing is connected, seal O-ring can bear certain pressure, by upper
Side squeezes into gas, and left part compresses sealing to lightweight rope；
The endoporus of taper facing has tooth shape agnail, and described tooth shape agnail is tooth shape steel ladder agnail, using taper facing steel ring
Deform and to lock coiled tubing；
Gas push piston-advance step；
Piston is sent into coiled tubing, ties up lightweight rope and miniature instrument, lightweight rope penetrates pressure cap and tightens sealing；
Connecting tee device, use conical teeth cover locking coiled tubing, seal O-ring carry out 2 grades sealing；
Connect injecting hole, promote piston-advance using strength；
Its multistage end to end pointed and arc leather cup of coiled tubing pressure type piston, the perforate air pressure of side junction is equal
Stand；
The three way type structure of threading and gas injection common-use tunnel, coiled tubing, left part pressure cap pressure are locked in the deformation using taper facing
Tightly lightweight rope is sealed.
6. adopt a kind of coiled tubing pressure type piston carrying method of claim 3 described device it is characterised in that containing with
Lower step；
Gas is used as driving force, promotes piston to be moved inside coiled tubing, lightweight rope and miniature instrument are divided one
Secondary or bring coiled tubing into twice, or steel wire and miniature instrument are divided bring coiled tubing into once or twice,
Carry out band wire using the teflon piston using non-contacting seal when high-power air compressor machine or aerator,
Connect coiled tubing on the right of the three-way device that coiled tubing is connected, seal O-ring can bear certain pressure, by upper
Side squeezes into gas, and left part is to lightweight rope or steel wire compression sealing；
The endoporus of taper facing has tooth shape agnail, and described tooth shape agnail is tooth shape steel ladder agnail, using taper facing steel ring
Deform and to lock coiled tubing；
Gas push piston-advance step；
Piston is sent into coiled tubing, ties up lightweight rope and miniature instrument, or tie up steel wire and miniature instrument, lightweight rope or steel
Silk penetrates pressure cap and tightens sealing；
Connecting tee device, use conical teeth cover locking coiled tubing, seal O-ring carry out 2 grades sealing；
Connect injecting hole, promote piston-advance using strength；
Coiled tubing pressure type piston conveyer device is the teflon piston of non-contacting seal, and described piston conveying dress
Put the pre-small post-large non-contacting seal with horizontal segment fluting, perforate before and after it is easy to threading and glue fixing seal；
The three way type structure of threading and gas injection common-use tunnel, coiled tubing, left part pressure cap pressure are locked in the deformation using taper facing
Tightly to lightweight rope or steel wire sealing.
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| CN201310316747.3A CN103775062B (en) | 2013-07-25 | 2013-07-25 | Coiled tubing pressure piston conveying device and method |
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| CN201310316747.3A CN103775062B (en) | 2013-07-25 | 2013-07-25 | Coiled tubing pressure piston conveying device and method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201656379U (en) * | 2009-03-26 | 2010-11-24 | 浙江国泰建设集团有限公司 | Construction electric wire through tubing wire drawer |
| CN202215234U (en) * | 2011-08-05 | 2012-05-09 | 中国石油天然气股份有限公司 | Under-well testing continuous tube with thermocouple tube and capillary arranged inside |
| CN102777145A (en) * | 2012-08-16 | 2012-11-14 | 中国石油大学(北京) | Electric control fluid drive coiled tubing downhole retractor |
| CN202914901U (en) * | 2012-10-23 | 2013-05-01 | 中国石油天然气集团公司 | Seal device for threading cable in coiled tube |
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| SE513045C2 (en) * | 1999-02-22 | 2000-06-26 | Ericsson Telefon Ab L M | Optical fiber feed device |
| GB9908480D0 (en) * | 1999-04-15 | 1999-06-09 | Sensor Highway Ltd | Pipeline cable deployment apparatus and method |
| CN102208779A (en) * | 2011-02-11 | 2011-10-05 | 杨鸿杰 | Method for rapidly inserting cable into sleeve |
| CN102305315B (en) * | 2011-08-19 | 2013-03-06 | 克拉玛依新科澳石油天然气技术股份有限公司 | Operating method for making cable pass through overlong continuous oil pipe |
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| CN201656379U (en) * | 2009-03-26 | 2010-11-24 | 浙江国泰建设集团有限公司 | Construction electric wire through tubing wire drawer |
| CN202215234U (en) * | 2011-08-05 | 2012-05-09 | 中国石油天然气股份有限公司 | Under-well testing continuous tube with thermocouple tube and capillary arranged inside |
| CN102777145A (en) * | 2012-08-16 | 2012-11-14 | 中国石油大学(北京) | Electric control fluid drive coiled tubing downhole retractor |
| CN202914901U (en) * | 2012-10-23 | 2013-05-01 | 中国石油天然气集团公司 | Seal device for threading cable in coiled tube |
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| CN103775062A (en) | 2014-05-07 |
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