CN107816327A - Mechanical multifunctional underwater installation installs retracting device - Google Patents
Mechanical multifunctional underwater installation installs retracting device Download PDFInfo
- Publication number
- CN107816327A CN107816327A CN201711002150.6A CN201711002150A CN107816327A CN 107816327 A CN107816327 A CN 107816327A CN 201711002150 A CN201711002150 A CN 201711002150A CN 107816327 A CN107816327 A CN 107816327A
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- China
- Prior art keywords
- main cylinder
- annular groove
- drive shaft
- excircle
- sealing
- Prior art date
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Classifications
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- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
Abstract
The invention discloses a kind of mechanical multifunctional underwater installation to install retracting device, including main cylinder top is socketed with drive shaft, and drive shaft upper port is fixedly connected with working string；Drive shaft lower port is fixedly connected with flushing pipe nipple；Pressing plate is installed with the annular groove X of drive shaft；Pressing plate is fixedly connected downwards with actuating sleeve, and actuating sleeve inner chamber is set with main cylinder；Shading ring is set between drive shaft top excircle and main cylinder top inner periphery；Upper position is threaded with righting circle in the middle part of main cylinder excircle, is sat in the annular groove W that righting circle excircle is set and is placed with lock pin circle, and collar set is attached in the annular groove Y of main cylinder hypomere by lock pin circle upper end outer circumferential set after loading collar；Antirotation keys are separately installed with annular groove up and down on main cylinder excircle.The device of the present invention, compact-sized, vdiverse in function, adaptability is good.
Description
Technical field
The invention belongs to marine oil and gas drilling and extracting equipment technical field, is related to a kind of mechanical multifunctional underwater installation and installs back
Receiving apparatus.
Background technology
With the increase of marine oil and gas mining depth, to the boll-weevil hanger in subsea production tree system and hole protector
The task difficulties such as installation, recovery, sealing test are increasing；Influenceed by operating water depth, these operations can only be in job platform
Upper remote control.The completion workover treatment of individual well is completed, matched mounting tool, recovery instrument, testing tool is needed and rinses work
Tool etc., causes that corollary apparatus species is various, operating procedure is complicated, needs to repeat to transfer in operation process or recovery action,
Operating efficiency is so not only have impact on, also increases deepwater work cost.Meanwhile ocean operation environment is fast changing, easily goes out
The emergency cases such as existing typhoon, tsunami to underwater installation, it is necessary to promptly be reclaimed.
It is to provide hydraulic power supply by throttle well killing manifold that existing underwater installation, which is installed back and put the tools away mostly, is realized to oil
The operation such as the locking of the underwater installations such as pipe hanger, hole protector, preventer group, unblock, sealing test, this control mode is not
Only in response to slow, and if installation tool occur when seal failure, jam or its hydraulic power supply fail, it is necessary to terminate installation,
The operations such as recovery, and instrument is reclaimed, operation again, causes the activity duration to be grown after Resolving probiems, increases the wind of operation on the sea
Danger.Therefore, it is badly in need of a kind of installation retracting device simple to operate, response is fast, dependable performance, function integration are strong of exploitation.
The content of the invention
It is an object of the invention to provide a kind of mechanical multifunctional underwater installation to install retracting device, solves existing hydraulic control
Underwater installation installs back the low-response that puts the tools away, by supporting influenceed of water surface hydraulic control system and can not normal operation, and set under water
The problem of standby installation exercise, test jobs and flushing operation need to repeatedly transfer reclaimer operation.
The technical scheme is that a kind of mechanical multifunctional underwater installation installation retracting device, including main cylinder, it is main
Cylinder top is socketed with drive shaft, and drive shaft top excircle is provided with annular groove X, and drive shaft upper port is fixed with working string to be connected
Connect；Drive shaft lower port is fixedly connected with flushing pipe nipple；Pressing plate is installed with the annular groove X of drive shaft；
Pressing plate is fixedly connected downwards with actuating sleeve, and actuating sleeve inner chamber is set with main cylinder, and actuating sleeve top is thin neck, driving
Set bottom is particle size, the particle size periphery diametrically symmetrical two planes of milling；
Shading ring is set between drive shaft top excircle and main cylinder top inner periphery, the endoporus of shading ring is logical
Hole, the excircle of shading ring is multi-diameter shaft, and the top outer of shading ring is provided with annular groove, and it is recessed that pressing plate bottom is provided with inner via hole
Groove, the lower convex shoulder of the inner via hole groove are caught in the annular groove on shading ring top, and the top convex of pressing plate inner via hole groove
It is caught in the annular groove X of drive shaft；
Upper position is threaded with righting circle in the middle part of main cylinder excircle, and righting circle excircle is provided with the annular groove of abnormity
W, sat in annular groove W and be placed with lock pin circle；
Upper position excircle is additionally provided with annular groove Y in the middle part of main cylinder, and lock pin circle upper end outer circumferential set will after loading collar
Collar set is attached in the annular groove Y of main cylinder hypomere；
Lower annular groove is provided with main cylinder excircle, three antirotation keys II are installed with the lower annular groove；Three antirotation keys
Annular groove is provided with the main cylinder excircle of II top, antirotation keys I are installed on this in annular groove, bottom and main cylinder in antirotation keys I
Between be provided with spring；
Sealing B is provided with below drive shaft bottom outer wall annular groove and main cylinder connection screw thread between inwall；Shading ring outer wall
Annular groove is provided with sealing C with main cylinder upper inside wall；It is provided between the annular groove X external wall beneaths and shading ring inwall of drive shaft close
Seal D；
Drive shaft external wall of upper portion, main cylinder upper inside wall, shading ring lower surface, sealing C and sealing D surround unidirectional closed
Space, referred to as A chambers；The unidirectional confined space that drive shaft bottom annular groove surrounds with main cylinder sealing surface and sealing B, referred to as B chambers；Drive
Between dynamic set particle size inwall and main cylinder, and the space of installation retracting device periphery is referred to as C chambers；Through hole a is provided with drive shaft,
Through hole a connects A chambers and C chambers；Through hole b, through hole b connection B chambers and C chambers are radially provided with main cylinder.
The mechanical multifunctional underwater installation installation retracting device of the present invention, is further characterized in that：
Described flushing pipe nipple is blind hole structure, rinses the flushing hole d that the blind mouth end in pipe nipple bottom is provided with radiation.
The internal channel of described working string is referred to as passage I, and the axis through-hole of drive shaft is referred to as passage II, rinses pipe nipple
Axle center blind hole is referred to as passage III；Passage I, passage II and passage III connect the irrigation channel for forming sealing from top to bottom.
Described pressing plate is split-type structural, and pressing plate inner ring upper and lower end face is respectively arranged with step surface, and in each step
A wear ring is separately installed with face.
A guiding anti-rotation elongated slot is radially provided with the thin neck of described actuating sleeve, is provided with and leads in the guiding anti-rotation elongated slot
To block, guide pad is fixedly connected by fastener I with main cylinder top excircle again.
Described lock pin circle is open C shape ring, and actuating sleeve lower surface interior edge is connect with lock pin circle upper surface outer using inclined-plane
Touch.
Sealing A is provided with the inwall annular groove of described main cylinder bottom；Main cylinder bottom outer wall and sealed support inwall
Between be provided with sealing E；Sealing F is provided with sealed support external cylindrical surface annular groove.
Described pressing plate is split-type structural, and actuating sleeve is shaped face revolving body, and righting ring cross-section is Z-type revolving body.
The invention has the advantages that including following aspect：
1) working string being connected by machinery rotation with main cylinder, the failure of water surface hydraulic control system, hydraulic control oil are realized
Pipe hanger installs back when putting the tools away cisco unity malfunction or running into the bad weathers such as typhoon tsunami, to boll-weevil hanger or hole
The underwater installations such as protector promptly reclaim operation；
2) by connecting the BOP mechanism for testing of sealed support and sealing composition, after hole protector is installed, realize to adopting under water
The sealing test for the gasket ring that oil tree connects with preventer；In addition, synchronously complete hole protector by connecting flushing pipe nipple
Recovery and the flushing of the intrinsic locking annular groove of subsea production tree and sealing surface；
3) connected pipes hanger and tubing string, the flushing for the well that fulfiled assignment by tubing string passage；
4) it is compact-sized, operation is reliable, fast without hydraulic-driven, response time, use range is wide, while has oil pipe suspension
Device recovery, hole protector installation and recovery, BOP gasket rings sealing test, subsea production tree body internal channel rinse and operation
The function of well clean-out service, reduce the species of subsea production tree system support instrument, improve deep water equipment installation, recovery,
The efficiency of the operations such as flushing, reduces operating cost.
Brief description of the drawings
Fig. 1 is the structural representation of apparatus of the present invention；
Fig. 2 is partial enlargement structural representation at A in Fig. 1；
Fig. 3 is partial enlargement structural representation at B in Fig. 1；
Fig. 4 is the lower end of main cylinder 4 in apparatus of the present invention and the connection diagram of thread protecting cap 27；
Fig. 5 is the structural representation that apparatus of the present invention implement recovery boll-weevil hanger 33；
Fig. 6 is the structural representation that apparatus of the present invention implement recovery hole protector 38；
Fig. 7 is that apparatus of the present invention implement recovery hole protector and rinse the schematic diagram of subsea production tree body；
Fig. 8 is present invention installation hole protector and tests the structural representation of the gasket ring 40 of preventer 39.
In figure, 1. drive shafts, 2. pressing plates, 3. actuating sleeves, 4. main cylinders, 5. collars, 6. lock pin circles, 7. righting circles, 8. is close
Seal support, 9. sealing A, 10. sealing B, 11. guide pads, 12. fasteners I, 13. fasteners II, 14.. sealing C, 15. shading rings,
16.. D is sealed, 17. wear rings, 18. fasteners III, 19. fasteners IV, 20. springs, 21. antirotation keys I, 22. antirotation keys II,
23. fastener V, 24. fasteners VI, 25. sealing E, 26. sealing F, 27. thread protecting caps, 28. rinse pipe nipple, and 29. flashboards, 30. adopt
Oil tree body, 31. locking actuating sleeve cylinders, 32. retaining rings, 33. boll-weevil hangers, 34. mandrels, 35. prompting sleeves, 36. installations
Retracting device, 37. working strings, 38. hole protectors, 39. preventers, 40. gasket rings.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
Reference picture 1, Fig. 2, Fig. 4, structure of the invention are, including main cylinder 4, the top of main cylinder 4 by left hand thread with
Drive shaft 1 is socketed, and when main cylinder 4 is in a fixed position, rotates clockwise drive shaft 1, drive shaft 1 is with respect to main cylinder 4 vertically
Move up, rotate counterclockwise drive shaft 1, drive shaft 1 is axially downward with respect to main cylinder 4；The outer spiral shell of the bottom of main cylinder 4
Line can select connection sealed support 8 or thread protecting cap 27 (to be shown in Fig. 1 and connect sealed support 8, in Fig. 4 according to operation needs
It is shown that connection thread protecting cap 27)；
The top excircle of drive shaft 1 is provided with annular groove X, and the upper port of drive shaft 1 is solid by self sealss screw thread and working string 37
Fixed connection；The lower port of drive shaft 1 is screwed to be connected with by self sealss rinses pipe nipple 28, and flushing pipe nipple 28 is blind hole structure,
Rinse the flushing hole d that the blind mouth end in the bottom of pipe nipple 28 is provided with radiation；The internal channel of working string 37 is referred to as passage I, drive shaft 1
Axis through-hole be referred to as passage II, the axle center blind hole for rinsing pipe nipple 28 is referred to as passage III；Passage I, passage II and passage III are from upper
The irrigation channel of sealing is formed to lower connection；
Pressing plate 2 is installed with the annular groove X of drive shaft 1, pressing plate 2 is split-type structural, and the inner ring upper and lower end face of pressing plate 2 is set respectively
Step surface is equipped with, and a wear ring 17 is separately installed with each step surface, wear ring 17 can be in the annular groove X of drive shaft 1
It is interior freely to rotate, see Fig. 2；
Pressing plate 2 passes downwardly through fastener II 13 and is fixedly connected with actuating sleeve 3, and the inner chamber of actuating sleeve 3 is set with main cylinder 4, drives
Dynamic set 3 is shaped face revolving body, and actuating sleeve 3 is moved up and down by fastener II 13 and pressing plate 2 with drive shaft 1；Actuating sleeve 3
Top is thin neck, and a guiding anti-rotation elongated slot is radially provided with the thin neck, guide pad 11 is provided with the guiding anti-rotation elongated slot,
Guide pad 11 is fixedly connected by fastener I 12 with the top excircle of main cylinder 4 again；Actuating sleeve 3, guide pad 11 and fastener I
12 form drive devices be oriented to rotation-preventing mechanisms so that actuating sleeve 3 can only radially be moved up and down with actuating sleeve 1 permission away from
From, and do not produced relative rotation with main cylinder 4；The bottom of actuating sleeve 3 is particle size, the particle size periphery diametrically symmetrical milling two
Individual plane, two planes are clamping face when rotating actuating sleeve 3；
Shading ring 15, the endoporus of shading ring 15 are set between the top excircle of drive shaft 1 and the top inner periphery of main cylinder 4
For through hole, the excircle of shading ring 15 is multi-diameter shaft, and the top outer of shading ring 15 is provided with annular groove, and the bottom of pressing plate 2 is provided with
Inner via hole groove, the lower convex shoulder of the inner via hole groove are caught in the upper, annular groove of shading ring 15, and the inner via hole groove of pressing plate 2
Top convex is caught in the annular groove X of drive shaft 1 so that shading ring 15 moves up and down with pressing plate 2；Drive shaft 1, pressing plate 2, driving
Set 3, main cylinder 4, guide pad 11, fastener I 12 and fastener II 13 are collectively referred to as drive mechanism；
Upper position has been connected through a screw thread righting circle 7 in the middle part of the excircle of main cylinder 4, and the section of righting circle 7 is turned round for Z-type
Body, righting circle 7 are fastenedly connected with main cylinder 4 by screw thread and are integrated；The excircle of righting circle 7 is provided with the annular groove W of abnormity, in ring
To be sat in groove W and be placed with lock pin circle 6, lock pin circle 6 is open C shape ring, opens during nature, can close tighten under external force,
The lower surface interior edge of actuating sleeve 3 and the upper surface outer of lock pin circle 6 use contact of incline plane, pass through moving up or downwards for actuating sleeve 3
It is mobile, unclamp or oppress lock pin circle 6, realize that lock pin circle 6 opens or tightened；The step surface of the excircle of lock pin circle 6 is in open configuration
When be engaged with the annular groove of boll-weevil hanger 33 or the locking actuating sleeve cylinder 31 of the grade underwater installation of hole protector 38, for hanging water
Lower equipment, is shown in Fig. 5；
The middle part upper position excircle of main cylinder 4 is additionally provided with annular groove Y, after the upper end outer circumferential of lock pin circle 6 set loads collar 5
Collar is attached in the annular groove Y of the hypomere of main cylinder 4 for 5 sets by fastener III 18, collar 5 is split type L-shaped section revolving body；Lock
Lock ring 6 is free to rotate and radially opens or tightens, and upper end outer circumferential is affixed with the endoporus circumference of collar 5 after lock pin circle 6 opens
Close, the special-shaped annular groove W of lower end excircle and righting circle 7 fits；
Reference picture 3, fastener VI 24 is installed in the insertion screwed hole of the upper end of sealed support 8, when sealed support 8 and main cylinder
After body 4 connects, pass through tightening fastener parts VI 24, the position relationship of locking sealed support 8 and main cylinder 4；The top of sealed support 8
Lower annular groove is provided with the excircle of main cylinder 4, antirotation keys II 22, Zong Gongsan are installed with by fastener V 23 in the lower annular groove
Individual antirotation keys II 22 are distributed along the excircle of main cylinder 4 into 180 °；It is provided with the excircle of main cylinder 4 of three tops of antirotation keys II 22
Upper annular groove, antirotation keys I 21, i.e. the leading to through antirotation keys I 21 of fastener IV 19 are provided with by fastener IV 19 in annular groove on this
Hole is simultaneously threadedly attached on the external cylindrical surface of main cylinder 4；Spring 20 is provided with antirotation keys I 21 between bottom and main cylinder 4, i.e.,
The inner face of spring 20 and the bottom hole apical grafting on the excircle of main cylinder 4, outer face and the bottom surface apical grafting of antirotation keys I 21 of spring 20；
Under nature, spring 20 is in stretched condition, and antirotation keys I 21 are extruded in the presence of spring 20, the top surface of antirotation keys I 21
The annular groove external cylindrical surface on main cylinder 4；Antirotation keys I 21 are pressed on main cylinder 4 when being squeezed in annular groove external cylindrical surface；
Sealing A9 is provided with the inwall annular groove of the bottom of main cylinder 4；The bottom outer wall annular groove of drive shaft 1 is connected with main cylinder 4
Sealing B10 is provided with below screw thread between inwall；The outer wall annular groove of shading ring 15 is provided with sealing C14 with the upper inside wall of main cylinder 4；
Sealing D16 is provided between the annular groove X external wall beneaths and the inwall of shading ring 15 of drive shaft 1；The bottom outer wall of main cylinder 4 and sealing branch
Sealing E25 is provided between the inwall of frame 8；Sealing F26 is provided with the external cylindrical surface annular groove of sealed support 8.A9 is sealed, B10 is sealed, is close
Envelope C14, sealing D16, sealing E25 and sealing F26 use single track or multiple-sealed, respectively or all using metal sealing, non-gold
Category sealing or combination sealing；Or improve sealing ring service life by the way of sealing plus wear ring；
What the external wall of upper portion of drive shaft 1, the upper inside wall of main cylinder 4, the lower surface of shading ring 15, sealing C14 and sealing D16 were surrounded
Unidirectional confined space, referred to as A chambers；The unidirectional confined air that the bottom annular groove of drive shaft 1 surrounds with the sealing surface of main cylinder 4 and sealing B10
Between, referred to as B chambers；Between the particle size inwall of actuating sleeve 3 and main cylinder 4, and the space of installation retracting device periphery is referred to as C chambers；Drive
Through hole a, through hole a connection A chambers and C chambers are provided with moving axis 1；Through hole b, through hole b connection B chambers and C are radially provided with main cylinder 4
Chamber.
Between drive shaft 1 and working string 37, and connected between drive shaft 1 and flushing pipe nipple 28 by self sealss screw thread
Connect, or the sealed connection form of other fit dimensions encryption seal.
Pressing plate 2 is fixedly connected with actuating sleeve 3 by fastener II 13, or using threaded connection, riveting, welding or clip side
Formula connects.
Antirotation keys I 21 are movably attached to the upper end of spring 20 by fastener IV 19, or by welding catch on main cylinder 4
Mode be flexibly connected.
Rinse on pipe nipple 28 and flushing hole d is distributed with, flushing hole d can be blocked or connected according to actual conditions, so as to
Obtain different flushing hole numbers and directional combination mode.
In the following course of work, the above-mentioned device of the present invention is referred to as installed into retracting device 36, the installation retracting device
36 include following four working method in the application.
First way, reference picture 5, carry out boll-weevil hanger 33 and promptly reclaim operation and clean-out service.
The state of boll-weevil hanger 33：Install, be locked in subsea production tree main channel.
Preparation：Fixed main cylinder 4, rotates clockwise drive shaft 1, actuating sleeve 3 is moved to upper extreme position；Lock pin
Circle 6 open and it is free to rotate；Take down antirotation keys II 22, fastener V 23 and rinse pipe nipple 28；As the lower section of main cylinder 4 is connected with
Sealed support 8, then sealed support 8 is taken down after loosening fasteners VI 24, and thread protecting cap 27 is installed；The upper end connection operation of drive shaft 1
Tubing string 37.
On job platform, installation retracting device 36 is slowly transferred with working string 37, until the lower end circular conical surface of righting circle 7
Seat is put on the loading end of boll-weevil hanger 33, and lock pin circle 6 is squeezed into the upper end annular groove E of 33 locking actuating sleeve cylinder of boll-weevil hanger 31；
Seal A9 with the mandrel outer wall of boll-weevil hanger 33 to coordinate, form sealing, channel isolation IV and outside annular space C chambers；Passage I, passage
II and passage IV formed sealing irrigation channel；So far installation retracting device 36 is completed to be connected with boll-weevil hanger 33.
It is lifted up that retracting device 36 is installed by working string 37, lock pin circle 6 drives the locking of boll-weevil hanger 33 to drive
Moving sleeve 31 moves up, and is separated after the retraction of retaining ring 32 of boll-weevil hanger 33 with production tree body 30, realizes oil pipe suspension
Device 33 unlocks with production tree；Continue above to carry working string 37, until boll-weevil hanger 33 is recycled into job platform.
After installation retracting device 36 is connected with the boll-weevil hanger 33 in production tree, before reclaiming boll-weevil hanger 33, may be used also
The clean-out service of Oil/gas Well is carried out by installing retracting device 36.Need to confirm steel wire in boll-weevil hanger 33 before carrying out clean-out service
Blanking plug of restricting all is taken out, and Annulus master valve, annulus wing valve and the annulus isolation valve of production tree are opened completely.
The alternate flushing liquor of high-low pressure is pumped into the passage I of working string 37, flushing liquor flows through passage II, passage IV and oil
Return from shaft bottom along annular space after tubing string, and make after flowing through Annulus master valve, annulus wing valve and annulus isolation valve through annular fiowpath return
Industry platform.Annulus master valve, annulus wing valve and the annulus isolation valve of production tree are closed after the completion of flushing, above carries working string 37, directly
Boll-weevil hanger 33 is extremely recycled to job platform.
Installation retracting device 36 departs from：On job platform, drive shaft 1 is slowly rotated, until antirotation keys I 21 spring into oil pipe
Hanger 33 is lifted in the anti-rotation groove F of sleeve；Drive shaft 1 is rotated counterclockwise, actuating sleeve 3 is moved to lower limit position；Lock pin
Circle 6 is retracted, and installation retracting device 36 unlocks with boll-weevil hanger 33；Working string 37 is above carried, takes out installation retracting device 36, extremely
This completes the urgent recovery of boll-weevil hanger 33.
The second way, reference picture 6, carry out hole protector 38 and reclaim operation.
The state of hole protector 38：Install, be locked in subsea production tree main channel.
Preparation：With mode one.
On job platform, installation retracting device 36 is slowly transferred with working string 37, until the lower end circular conical surface of righting circle 7
Seat is put on the loading end of locking actuating sleeve cylinder 31 of hole protector 38, and lock pin circle 6 squeezes into the locking actuating sleeve cylinder 31 of hole protector 38
In the annular groove G of upper end；So far installation retracting device 36 is completed to be connected with hole protector 38.
It is lifted up that retracting device 36 is installed by working string 37, lock pin circle 6 drives the locking driving of hole protector 38
Sleeve 31 moves up, and the retaining ring 32 of hole protector 38 separates after retracting with production tree body 30, realize hole protector 38 with
Production tree unlocks；Continue above to carry working string 37, until hole protector 38 is recycled into job platform.
Installation retracting device 36 departs from：With mode one, the urgent recovery of hole protector 38 is so far completed.
The third mode, see Fig. 7, carry out hole protector 38 and reclaim operation and rinse production tree body 30.
The state of hole protector 38：Install, be locked in subsea production tree main channel.
Preparation：Fixed main cylinder 4, rotates clockwise drive shaft 1, actuating sleeve 3 is moved to upper extreme position；Lock pin
Circle 6 open and it is free to rotate；Remove antirotation keys II 22 and fastener V 23；After confirming that sealed support 8 is reliably connected, fastener
VI 24 tighten；Check that all flushing hole d for confirming to rinse on pipe nipple 28 are unimpeded；The upper end connection operation tubing string 37 of drive shaft 1.
Installation retracting device 36 and hole protector 38 are connected by the methods described of mode two.Sealing F is lifted with hole protector 38
Sleeve lining f coordinates, and forms sealing.
It is pumped into high pressure washing liquid into the passage I of working string 37, flushing liquor is flowed through after passage II, passage III from flushing hole d
Outflow is rinsed to the main channel underlying space M chambers of production tree body 30；After rinsing the stipulated time, stop rinsing.
Gently carry installation retracting device 36 upwards by working string 37, lock pin circle 6 drives the locking driving of hole protector 38
Sleeve 31 moves up, and the retaining ring 32 of hole protector 38 separates after retracting with production tree body 30, realize hole protector 38 with
Production tree unlocks；While being pumped into high pressure washing liquid into the passage I of working string 37 again, working string 37 is slowly above carried to rule
Set a distance；The certain angle of rotation operation tubing string 37, working string 37 is slowly transferred, continues to rinse；By repeatedly above carry-rotate-
The circulation flushing of decentralization, until the groove g of 30 main channel internal locking ring of production tree body 32, sealing surface h, seat put face k and sealing surface m punchings
Wash clean, it is ready to carry out the installation of next step boll-weevil hanger 33；Stop rinsing.
Continue above to carry working string 37, until hole protector 38 is recycled into job platform.
Installation retracting device 36 is taken out from hole protector 38 by the methods described of mode two, hole protector 38 is so far completed and returns
It is incorporated as the flushing of industry and production tree body 30.
4th kind of mode, see Fig. 8, carry out the installation exercise of hole protector 38 and the sealing test of gasket ring 40.
Hole protector 38 and oil recovery tree state：Hole protector 38 is located on job platform, waits to be installed, i.e. locking actuating sleeve
Cylinder 31 is in upper extreme position, and retaining ring 32 is retracted；Production tree has been installed on subsea equipment, and has been connected above production tree
39 groups of blowout preventer, 39 groups of flashboards of preventer are fully open.
Preparation：Fixed main cylinder 4, rotates counterclockwise drive shaft 1, actuating sleeve 3 is moved to lower limit position, lock pin
Circle 6 is retracted；Remove and rinse pipe nipple 28；After confirming that sealed support 8 is reliably connected, fastener VI 24 is tightened；The upper end of drive shaft 1 connects
Working string 37；Confirm that antirotation keys II 22 and fastener V 23 are reliably connected.
On job platform, vertical fixed hole protector 38, installation retracting device 36 is sling directly over hole protector 38；
Make the anti-rotation groove H directions in the antirotation keys II 22 and the lifting sleeve of hole protector 38 of installation retracting device 36 inconsistent, under slow
Installation retracting device 36 is put, until device contacts with hole protector 38；Slowly rotational installation retracting device 36, makes antirotation keys II 22
Slip into anti-rotation groove H；Continue decentralization installation retracting device 36, until the lower end circular conical surface of righting circle 7 is sat and is put into hole protector 38
On the loading end of locking actuating sleeve cylinder 31；Drive shaft 1 is rotated clockwise, actuating sleeve 3 is moved to upper extreme position, lock pin circle 6 squeezes
Enter in the upper end annular groove G of 38 locking actuating sleeve cylinder of hole protector 31；So far installation retracting device 36 is completed to be connected with hole protector 38.
Hole protector 38 is transferred by working string 37, until hole protector 38 is put into oil recovery through 39 groups of recoils of preventer
Set in body 30 on loading end k；Apply certain thrust to working string 37, make righting circle 7 promote the locking of hole protector 38 to drive
Moving sleeve 31, retaining ring 32 is finally squeezed, hole protector 38 is locked in production tree.
After the installation locking of hole protector 38,39 groups of pipe rams of preventer are closed, the external cylindrical surface n of working string 37 is with preventing
The ram seal face of spray apparatus 39 coordinates, and separates the upstream and downstream annular space of the flashboard of preventer 39；At this moment, seal E25, seal
F26, seal p, working string 37 passage I, install back and put the tools away passage II and the main channel of hole protector 38 together, formed
Seal passage；The gate panel downstream of preventer 39, the inwall of preventer 39 and gasket ring 40, production tree main body upper end inwall, seal
E25, seal F26, the peripheral seal p of hole protector 38 and sealing q form closed annular space N chambers.
Suppressed to the annular space N intracavitary that preventer 39 is formed with hole protector 38, by the pressure for measuring N chambers in the stipulated time
Loss, leakage rate, you can the sealing validity of gasket ring 40 after 39 groups of preventer of test is connected with production tree.
Annular space N intracavitary pressure releases, open pipe ram；Drive shaft 1 is rotated counterclockwise, actuating sleeve 3 is moved to limit inferior position
Put；Lock pin circle 6 is retracted, and installation retracting device 36 unlocks with hole protector 38；Working string 37 is above carried, takes out installation retracting device
36, so far complete the installation of hole protector 38 and the test of the gasket ring 40 of preventer 39.
The installation retracting device 36 of the present invention, pacify suitable for surface hydraulic control system failure, hydraulic control boll-weevil hanger 33
Reinstall when putting the tools away bad weathers such as cisco unity malfunction or typhoon etc., mechanically the oil pipe in subsea production tree
Hanger 33 or the grade underwater installation of hole protector 38 are promptly recovered to job platform；The device can be additionally used in the peace of hole protector 38
Dress, sealing test, the flushing operation of production tree body 30 and clean-out service are carried out as the gasket ring 40 of preventer 39.Only pass through one
Secondary decentralization such as can just complete to install, rinse or test simultaneously at the operation, greatly save the operating time；Mechanical type rotating working string
37 can complete the locking or unblock of boll-weevil hanger 33 or the grade underwater installation of hole protector 38, simple to operate, dependable performance, subtract
Underwater kit species is lacked, has reduced instrument manufacturing cost and deep water installation, recovery, rinses, the operating cost of test, solution
Hydraulic control instrument low-response, the reliability of having determined are low, the problems such as being limited by water surface hydraulic control system working condition.
Claims (8)
1. a kind of mechanical multifunctional underwater installation installs retracting device, it is characterised in that：Including main cylinder (4), main cylinder (4)
Top is socketed with drive shaft (1), and drive shaft (1) top excircle is provided with annular groove X, drive shaft (1) upper port and working string
(37) it is fixedly connected；Drive shaft (1) lower port, which is fixedly connected with, rinses pipe nipple (28)；Pressure is installed with the annular groove X of drive shaft (1)
Plate (2)；
Pressing plate (2) is fixedly connected downwards with actuating sleeve (3), and actuating sleeve (3) inner chamber is set with main cylinder (4), actuating sleeve (3) top
For thin neck, actuating sleeve (3) bottom is particle size, the particle size periphery diametrically symmetrical two planes of milling；
Shading ring (15) is set between drive shaft (1) top excircle and main cylinder (4) top inner periphery, shading ring (15)
Endoporus is through hole, and the excircle of shading ring (15) is multi-diameter shaft, and the top outer of shading ring (15) is provided with annular groove, pressing plate (2)
Bottom is provided with inner via hole groove, and the lower convex shoulder of the inner via hole groove is caught in the annular groove on shading ring (15) top, and is pressed
The top convex of plate (2) inner via hole groove is caught in the annular groove X of drive shaft (1)；
Upper position is threaded with righting circle (7) in the middle part of main cylinder (4) excircle, and righting circle (7) excircle is provided with abnormity
Annular groove W, in annular groove W sit be placed with lock pin circle (6)；
Upper position excircle is additionally provided with annular groove Y in the middle part of main cylinder (4), and lock pin circle (6) upper end outer circumferential set loads collar (5)
Collar (5) set is attached in the annular groove Y of main cylinder (4) hypomere afterwards；
Lower annular groove is provided with main cylinder (4) excircle, three antirotation keys II (22) are installed with the lower annular groove, this three anti-
Turn key II (22) is distributed along main cylinder (4) excircle into 180 °；On main cylinder (4) excircle above three antirotation keys II (22)
Annular groove is provided with, antirotation keys I (21) are installed on this in annular groove, bullet is provided between the interior bottom of antirotation keys I (21) and main cylinder (4)
Spring (20)；
Sealing B (10) is provided with below drive shaft (1) bottom outer wall annular groove and main cylinder (4) connection screw thread between inwall；Isolation
Ring (15) outer wall annular groove is provided with sealing C (14) with main cylinder (4) upper inside wall；The annular groove X external wall beneaths of drive shaft (1) with every
D (16) is sealed from being provided between ring (15) inwall；
Drive shaft (1) external wall of upper portion, main cylinder (4) upper inside wall, shading ring (15) lower surface, sealing C (14) and sealing D (16)
The unidirectional confined space surrounded, referred to as A chambers；Drive shaft (1) bottom annular groove surrounds with main cylinder (4) sealing surface and sealing B (10)
Unidirectional confined space, referred to as B chambers；Between actuating sleeve (3) particle size inwall and main cylinder (4), and installation retracting device periphery
Space be referred to as C chambers；Through hole a, through hole a connection A chambers and C chambers are provided with drive shaft (1)；Radially it is provided with main cylinder (4) logical
Hole b, through hole b connect B chambers and C chambers.
2. mechanical multifunctional underwater installation according to claim 1 installs retracting device, it is characterised in that：Described rushes
It is blind hole structure to wash pipe nipple (28), rinses the flushing hole d that the blind mouth end in pipe nipple (28) bottom is provided with radiation.
3. mechanical multifunctional underwater installation according to claim 1 installs retracting device, it is characterised in that：Described work
The internal channel of industry tubing string (37) is referred to as passage I, and the axis through-hole of drive shaft (1) is referred to as passage II, rinses the axle center of pipe nipple (28)
Blind hole is referred to as passage III；Passage I, passage II and passage III connect the irrigation channel for forming sealing from top to bottom.
4. mechanical multifunctional underwater installation according to claim 1 installs retracting device, it is characterised in that：Described pressure
Plate (2) is split-type structural, and pressing plate (2) inner ring upper and lower end face is respectively arranged with step surface, and pacifies respectively on each step surface
Equipped with a wear ring (17).
5. mechanical multifunctional underwater installation according to claim 1 installs retracting device, it is characterised in that：Described drive
A guiding anti-rotation elongated slot is radially provided with the dynamic thin neck of set (3), guide pad (11) is installed in the guiding anti-rotation elongated slot, is oriented to
Block (11) is fixedly connected by fastener I (12) with main cylinder (4) top excircle again.
6. mechanical multifunctional underwater installation according to claim 1 installs retracting device, it is characterised in that：Described lock
Lock ring (6) is open C shape ring, and actuating sleeve (3) lower surface interior edge uses contact of incline plane with lock pin circle (6) upper surface outer.
7. mechanical multifunctional underwater installation according to claim 1 installs retracting device, it is characterised in that：Described master
Sealing A (9) is provided with the inwall annular groove of cylinder (4) bottom；Set between main cylinder (4) bottom outer wall and sealed support (8) inwall
It is equipped with sealing E (25)；Sealing F (26) is provided with sealed support (8) external cylindrical surface annular groove.
8. mechanical multifunctional underwater installation according to claim 7 installs retracting device, it is characterised in that：Described pressure
Plate (2) is split-type structural, and actuating sleeve (3) is shaped face revolving body, and righting circle (7) section is Z-type revolving body.
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| CN201711002150.6A CN107816327B (en) | 2017-10-24 | 2017-10-24 | Mechanical multifunctional underwater equipment installs recyclable device |
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| CN201711002150.6A CN107816327B (en) | 2017-10-24 | 2017-10-24 | Mechanical multifunctional underwater equipment installs recyclable device |
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| CN107816327B CN107816327B (en) | 2019-08-20 |
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| CN109594947A (en) * | 2018-11-08 | 2019-04-09 | 中国海洋石油集团有限公司 | A kind of pit shaft protection continuation drilling rig |
| CN110145269A (en) * | 2019-04-28 | 2019-08-20 | 宝鸡石油机械有限责任公司 | A kind of long-range hydraulically-controlled type hole protector tripping in recycling tool |
| CN112302545A (en) * | 2019-07-29 | 2021-02-02 | 中国石油化工股份有限公司 | Downhole small tubing device and tubing string |
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|---|---|
| CN107816327B (en) | 2019-08-20 |
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Effective date of registration: 20210108 Address after: 721002 No.2 Dongfeng Road, Jintai District, Baoji City, Shaanxi Province Patentee after: Baoji Oilfield Machinery Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC national oil and gas drilling equipment Engineering Technology Research Center Co., Ltd Address before: 721002 No.2 Dongfeng Road, Jintai District, Baoji City, Shaanxi Province Patentee before: Baoji Oilfield Machinery Co.,Ltd. |