CN104453763B - Sealing anchoring member for casing patching and mounting device thereof - Google Patents
Sealing anchoring member for casing patching and mounting device thereof Download PDFInfo
- Publication number
- CN104453763B CN104453763B CN201410763502.XA CN201410763502A CN104453763B CN 104453763 B CN104453763 B CN 104453763B CN 201410763502 A CN201410763502 A CN 201410763502A CN 104453763 B CN104453763 B CN 104453763B
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- starting taper
- erecting device
- tapered sleeve
- extension spring
- sleeve
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- 238000007789 sealing Methods 0.000 title claims abstract description 40
- 238000004873 anchoring Methods 0.000 title abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 61
- 229910052751 metal Inorganic materials 0.000 claims abstract description 61
- 230000007246 mechanism Effects 0.000 claims abstract description 43
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 20
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 238000009833 condensation Methods 0.000 claims description 8
- 230000005494 condensation Effects 0.000 claims description 8
- 238000003032 molecular docking Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 230000009182 swimming Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000006748 scratching Methods 0.000 abstract 1
- 230000002393 scratching effect Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 8
- 238000012856 packing Methods 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 6
- 230000008602 contraction Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000013536 elastomeric material Substances 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 125000002619 bicyclic group Chemical group 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 210000001215 vagina Anatomy 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
- E21B29/10—Reconditioning of well casings, e.g. straightening
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to a sealing anchoring member for casing patching and mounting device thereof. The member comprises a repairing pipe and an anchoring mechanism. The anchoring mechanism comprises a rubber seal ring, a retainer ring, a metal seal ring and a necked metal anchor, the rubber seal ring, the retainer ring and the metal seal ring sequentially sleeve a neck of the necked metal anchor along an axial direction far from the neck of the necked metal anchor, the non-necked portion of the necked metal anchor is coaxially and fixedly connected with a repairing pipe. The sealing anchoring member for drive pipe repairing mainly solves the problems of sealing and pressure bearing after patching in the conditions of elliptical drive pipes, corrosion of drive pipes' surface and mechanical scratch of drive pipe surface. The sealing anchoring member and installation device have the advantages of preventing the rubber seal ring from being damaged by scratching of the wall of a well during the process of being descended to the well.
Description
Technical field
The invention belongs to OFME field, it is related to casing failure used during well workover in field of oil field oil extraction and reinforces
Device is and in particular to a kind of casing patching is with sealing anchor member and its erecting device.
Background technology
In oil field development production process, with the increase of production time, various geologic(al) factors and artificial measures can be right
Down-hole metal canula produces different degrees of impact, in time, effectively blocks and reinforces damaged sleeve pipe and be to ensure that oil field continues
Exploitation and the important measures producing.
It is soft metal to be used as sealed filling material with patching tube sealing and reinforcing sleeve pipe before, by extruding by soft metal
It is filled between sleeve pipe and the annular clearance of patching tube, play sealing and grappling effect.But it is subject to internal surface of sleeve pipe surface roughness
Impact, subsidy reinforce after seal and pressure bearing unstable properties, because hole condition is different, difference is big, and reason is to examine in terms of construction safety
Consider require by sealing grappling when extruding force control within the specific limits, and after softer metals plastic deformation with sleeve surface
Laminating limited in one's ability it is impossible to the tiny male and fomale(M＆F) of sealing sleeve pipe inner surface, therefore, it is difficult to meeting down-hole practical situation requirement.
Content of the invention
For defect of the prior art and deficiency, the present invention solves after existing metal o-ring subsidy is reinforced and seals
Load performance unstable and cannot the tiny male and fomale(M＆F) of sealing sleeve pipe inner surface problem it is proposed that a kind of casing patching sealing anchor
Determine component and its erecting device.
For achieving the above object, the technical scheme that the present invention takes is：
A kind of casing patching sealing anchor member, this component includes patching tube and anchor mechanism, described anchor mechanism
Including rubber seal, back-up ring, metal o-ring and closing in metal anchors, rubber seal, back-up ring, metal o-ring are along away from receipts
The axial direction that mouth metal anchors close up is linked in the closing in portion of closing in metal anchors successively；
The non-closing in portion of described closing in metal anchors is coaxially affixed with patching tube.
Specifically, described anchor mechanism includes the first anchor mechanism and the second anchor mechanism, the first anchor mechanism and
The structure of two anchor mechanisms is identical, and the first anchor mechanism and the second anchor mechanism confronting coaxial be installed in the two of patching tube
End.
More specifically, the external diameter of described rubber seal 2～6mm less than the external diameter of metal o-ring, rubber seal
Thickness be more than metal o-ring thickness 1～3mm.
Described erecting device includes power set and the first axially arranged tapered sleeve erecting device, close along power set
Envelope anchor member and the second tapered sleeve erecting device, the lower end of the first tapered sleeve erecting device deeply seals the upper port of anchor member,
The lower port of anchor member is goed deep in the upper end of the second tapered sleeve erecting device, and under the drive of power set, the first tapered sleeve installs dress
Putting is done relative motion with the second tapered sleeve erecting device and the upper and lower port of sealing anchor member swells carries out the close of damaged pipe
Envelope.
Specifically, the first described tapered sleeve erecting device includes lock pin, starting taper seat lock sleeve, starting taper, starting taper seat and epicone
Set, the lower end of starting taper seat lock sleeve is fixedly connected with the upper end fit of starting taper, the upper end setting lock pin of starting taper seat lock sleeve, lock pin
Starting taper seat is locked together in the inner circumferential of starting taper seat lock sleeve, starting taper seat can limit the condensation of starting taper radial direction, upper tapered sleeve is linked in starting taper
Periphery；
Described power set include trip nonyl adapter sleeve, starting taper lock sleeve, center-pole, release set, extension spring set and extension spring and draw
Bar, starting taper lock sleeve and starting taper coaxially push up conjunction, and starting taper seat is coaxially linked in the periphery of center-pole, and fixed spacing on center-pole
Nut, stop nut can drive starting taper seat to cut off lock pin；Extension spring pull bar and center-pole are coaxial docking by drag link sleeve, release set
Coaxially it is linked in the periphery of extension spring pull bar, extension spring set is coaxially fastened on the periphery of release set；
The second described tapered sleeve erecting device includes lower tapered sleeve, extension spring and spring base, and spring base fixation is linked in extension spring and draws
The periphery of bar and the inner chamber positioned at extension spring；Spring base can limit the radial direction condensation of extension spring, and lower tapered sleeve is linked in the periphery of extension spring.
Specifically, described release set is the tubular part of inverted T shape, and extension spring set is coaxially fastened on release and puts, and discharges
Set outer surface is provided with circumferential separation groove.
More specifically, described starting taper is the tubular articles that can be condensed, along axially arranged multiple points of lobes of this tubular articles
Structure, the outer peripheral face of splitted structure includes first face of cylinder setting gradually from top to bottom and first time conical surface, splitted structure
On inner peripheral surface, first face of cylinder (72) of corresponding outer peripheral face and the first time conical surface (71) junction arrange the first inner conical surface；Described
Starting taper seat is tubular component, along the conical round table that the circumference setting of this tubular articles end is raised；Described conical round table is same
The radial direction condensation that the first inner conical surface limits starting taper is closed on axle top, and upper tapered sleeve is linked on first face of cylinder, and first time conical surface gos deep into close
The upper port of envelope anchor member.
Specific again, described extension spring is the tubular articles with splitted structure, along this splitted structure periphery axially according to
Secondary is second face of cylinder and second time conical surface, and the circumference along this splitted structure axial direction is followed successively by the second raised inner conical surface and projection
The 3rd inner conical surface；
Described spring base is the tubular element with boss, described boss include along tubular element axial direction circumference according to
First conical round table of secondary setting and the second conical round table；
The second described inner conical surface coaxially pushes up conjunction the first conical round table, and the 3rd inner conical surface coaxially pushes up conjunction the second conical round table,
Lower tapered sleeve is linked on second face of cylinder, and the cylinder-shaped top of extension spring deeply seals the lower port of anchor member.
Further, described spring base is additionally provided with triconic round platform, the tip of second time conical surface and triconic
The position of round platform corresponds to.
Compared with prior art, this subsidy invention has the advantage that：
(1) present invention adopts soft metal ring and the bicyclic sealing anchoring structure of rubber ring composition, is not increasing patching tube anchor
Regularly under conditions of expanding power (release set disruptive force), to adapt to that sleeve pipe is oval, under sleeve surface mechanical mark situation to sealing
Requirement；Sealing anchor material is made using soft metal and rubber, completes grappling and auxiliary seal function with softer metals, by rubber
Glue material completes sealing function, and this is that have good elastic deformation performance using elastomeric material, can preferably adapt to down-hole set
The actual shape of pipe and surface smoothness requirements, thus improve the seal and pressure bearing ability after subsidy；
(2) by place rubber seal metal anchors closing in position be designed to radial contraction taper and flange composition recessed
Rubber seal is vulcanized in groove using die forming by groove, and the rubber ring outside dimension after shaping is less than outside anchor mechanism
Footpath size, thus solve the problems, such as that rubber seal is impaired because being scratched by the borehole wall during going into the well come off.
(3) first, second tapered sleeve erecting device is utilized tapered sleeve to be installed, under conditions of solving latus rectum after not reducing subsidy
Realize the installation of tapered sleeve it is ensured that the patching tube support force required when grappling seals；
Brief description
Fig. 1 is the anchor mechanism structural representation in the present invention；
Fig. 2 sealing anchor member and its first tapered sleeve erecting device structural representation；
Fig. 3 sealing anchor member and its second tapered sleeve erecting device structural representation；
Fig. 4 starting taper structural representation；
Fig. 5 starting taper holder structure schematic diagram；
Fig. 6 extension spring structure schematic diagram；
Fig. 7 spring base structural representation；
The each label of in figure is expressed as：1- trip nonyl locking nut, 2- trip nonyl adapter sleeve, 3- starting taper lock sleeve, 4- center-pole, 5-
Lock pin, 6- starting taper seat lock sleeve, 7- starting taper, 70- first splitted structure, first time conical surface of 71-, 72- first face of cylinder, 73-
One inner conical surface, 8- starting taper seat, 80- conical round table, 9- patching tube, 91- first anchor mechanism, 92- second anchor mechanism, 93- rubber
Glue sealing ring, 94- back-up ring, 95- metallic packing ring, 96- closing in metal anchors, 10- limiting locking nut, 11- stop nut, 12-
Upper tapered sleeve, 13- release set, tapered sleeve under 14- extension spring set, 15-, 16- extension spring, 160- second splitted structure, 161- second inner conical surface,
162- second face of cylinder, 163- the 3rd inner conical surface, second time conical surface of 164-, 17- spring base, 170- first conical round table, 171-
Second conical round table, 172- triconic round platform, 18- spring base locking nut, 19- extension spring pull bar；
Below in conjunction with Figure of description and specific embodiment, the present invention is specifically described.
Specific embodiment
The present invention adopts soft metal and rubber to make sealing anchor material, completes grappling and auxiliary seal work(with softer metals
Can, sealing function is completed by elastomeric material, this is that have good elastic deformation performance using elastomeric material, can preferably adapt to
The actual shape of down-hole casing and surface smoothness requirements, thus improve the seal and pressure bearing ability after subsidy；
The metal anchors closing in position placing rubber seal is designed to radial contraction taper and the groove of flange composition, utilizes
Rubber seal is vulcanized in groove by die forming, and the rubber ring outside dimension after shaping is less than anchor mechanism outside dimension,
Thus solve the problems, such as that rubber seal is impaired because being scratched by the borehole wall during going into the well coming off；
Starting taper is locked set upper side and is connected with the setting cylinder of subsidy power tool lower end by screw thread, will subsidize power tool defeated
The thrust going out passes to the first tapered sleeve erecting device, be threaded connection the starting taper lock sleeve being arranged on starting taper seat lock sleeve and
When both starting tapers reversely screw each other, can prevent starting taper seat lock sleeve during downhole transmitted from releasing with starting taper；
The upper end of trip nonyl adapter sleeve is connected with the trip nonyl of subsidy power tool lower end, and trip nonyl adapter sleeve appearance is pacified by screw thread
Equipped with trip nonyl locking nut, nonyl locking will be swum when connecting subsidy power tool, the pulling force of subsidy power tool output will be passed through
Trip nonyl adapter sleeve passes to center-pole and extension spring pull bar, and center-pole upper end connects trip nonyl adapter sleeve, and centre is pacified successively by screw thread
Dress limiting locking nut and stop nut, can pass through the threaded adjustment limiting locking nut and stop nut position on center-pole
Put, lower end is connected with extension spring pull bar by drag link sleeve；When starting taper seat lock sleeve is screwed in starting taper, starting taper seat is promoted by lock pin
Motion, taper first splitted structure of starting taper is strutted by the extruding using the contact conical surface, makes in the face of cylinder and upper tapered sleeve on starting taper
Surface fits tightly fixation, forms the first tapered sleeve erecting device.
Drag link sleeve is passed through in the upper end of extension spring pull bar and pull bar is connected with center-pole, and release set is threadedly attached in extension spring and draws
The middle part of bar, lower surface is unique derotation screw thread in a whole set of combined labyrinth and carbon gland anchor member and its erecting device, and connection is drawn
Spring abutment and spring base locking nut, threaded adjusting can be passed through in position on extension spring pull bar for the spring base；Extension spring set is enclosed within release set
Outward, the raised seamed edge of release set is stuck on the end face of extension spring set, and extension spring is enclosed within outside spring base, and its upper end covers coaxial threaded with extension spring
Connect, adjust position on extension spring pull bar for the spring base, by double cone face raised on spring base and extension spring second inner conical surface and
Second splitted structure of extension spring is strutted by the 3rd inner conical surface contact squeeze, makes the lower tapered sleeve being sleeved on outside extension spring second splitted structure
Fixation, spring base, after the position on extension spring pull bar determines, is locked by spring base with spring base locking nut, is assembled into the
Two tapered sleeve erecting devices；
Stop nut by being threadably mounted at the middle part of elastic starting taper center-pole, in stop nut in elastic starting taper center-pole
On position determine after, with limiting locking nut, stop nut is locked, prevents from releasing；Adjustment stop nut is in elastic starting taper
Position on core bar just can carry in subsidy power tool in subsidy, after upper tapered sleeve is introduced in the mouth of closing in metal anchors
For pulling force effect under, moved by center-pole, drive stop nut pushing and withstanding starting taper seat lock pin is cut off, and make on starting taper seat move
Enter in the cavity of starting taper, release starting taper seat and restriction is shunk to starting taper splitted structure, complete starting taper purpose detached with upper tapered sleeve；
When adjusting position on elastic starting taper center-pole for the stop nut, the distance that stop nut moves to starting taper seat should be made to meet the
After upper tapered sleeve is introduced in the mouth of closing in metal anchors one tapered sleeve erecting device, then starting taper seat is pushed open, this distance is less than again simultaneously
The impulse stroke that subsidy power tool provides, to ensure to complete the first tapered sleeve erecting device before subsidy power tool work stops
Unblock.
The intensity of lock pin should meet when the first splitted structure of starting taper is pushed out into closing in metal anchors it is ensured that the of starting taper
The requirement of the non-shrinking required ejection force of one splitted structure.
Release set outer surface is machined with circumferential separation groove, and the raised seamed edge of release set is stuck in the pit on the end face of extension spring set
Interior, the axial force on extension spring pull bar is passed to by extension spring set by the seamed edge that release puts projection, drives the second tapered sleeve peace
Assembling device works；Its fracture strength is changed by the depth that adjustment release puts breaking groove, is supplied to the second tapered sleeve to control
Closing in metal anchors and metallic packing ring are swollen required axial tension by erecting device, when the anchor mechanism at patching tube two ends completes
After sealing grappling, act on the axial tension that puts of release and at breaking groove, release set is broken, pull in power tool afterwards
Tension spring pull bar drives spring base to move and be retracted in the cavity of extension spring, releases the second splitted structure radial direction to extension spring for the spring base
The restriction shunk, realizes the second tapered sleeve erecting device and separates unfreezing function with lower tapered sleeve.
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is described in further detail.
Embodiment one：Sealing anchor member
In conjunction with Fig. 1, the sealing anchor member of the present embodiment includes patching tube 9 and the grappling machine being welded on patching tube two ends
Structure, anchor mechanism includes the first anchor mechanism 91 and the second anchor mechanism 92, the first anchor mechanism 91 and the second anchor mechanism 92
Structure identical, and two ends being installed in patching tube 9 of the first anchor mechanism 91 and the second anchor mechanism 92 confronting coaxial；Grappling
It is close that mechanism includes closing in metal anchors 96, metallic packing ring 95, ring washer 94, rubber in closing in metal anchors 96 oral area groove for the sulfuration
Seal 93；
The non-closing in end of closing in metal anchors 96 is connected with patching tube 9 butt welding, and the ring washer 94 at closing in end passes through to be threadably mounted at
In closing in metal anchors 96, the metallic packing ring 95 being enclosed within closing in metal anchors 96 is fixing, in closing in metal anchors 96 oral area groove
Interior use mold cure formed rubber circle 93, the external diameter of rubber ring 93 is less than the external diameter of metallic packing ring 95 and patching tube 9；
According to actual construction demand, the external diameter that the present embodiment is designed as rubber seal 93 is outer than metal o-ring 95
Little 2～the 6mm in footpath, the thickness of rubber seal 93 is more than the thickness 1～3mm of metal o-ring 95.
Embodiment two：The erecting device of the sealing anchor member described in embodiment one
In conjunction with Fig. 1,2,3,4,5 and 6, the erecting device of the present embodiment include power set, the first tapered sleeve erecting device and
Second tapered sleeve erecting device, wherein：
First tapered sleeve erecting device includes lock pin 5, starting taper seat lock sleeve 6, starting taper 7, starting taper seat 8 and upper tapered sleeve 12, starting taper
The seat lower end of lock sleeve 6 is fixedly connected with the upper end fit of starting taper 7, the upper end setting lock pin 5 of starting taper seat lock sleeve 6, and lock pin 5 will
Starting taper seat 8 is locked together in the inner circumferential of starting taper seat lock sleeve 6, and starting taper seat 8 can limit the condensation of starting taper 7 radial direction, and upper tapered sleeve 12 is linked in
The periphery of starting taper 7；
Starting taper seat 8 is enclosed within outside center-pole 4, on limiting locking nut 10, is cased with starting taper seat in the outside of starting taper seat 8
Lock sleeve 6, the upper end radial symmetric of starting taper seat lock sleeve 6 installs two lock pins 5, and lock pin 5 is a little longer, stretches out starting taper seat lock
Tight set 6 inner wall surface, starting taper seat 8 upper surface withstands on lock pin 5, and conical round table 80 thereon withstands on first point of lobe knot of starting taper 7
On inwall first inner conical surface 73 of structure 70, starting taper locking is connected on the outer surface top of starting taper seat lock sleeve 6 respectively by screw thread
Set 3, bottom connects starting taper 7；
Starting taper 7 is the tubular articles that can be condensed, along axially arranged multiple first splitted structures 70 of this tubular articles, first
The outer peripheral face of splitted structure 70 includes first face of cylinder 72 setting gradually from top to bottom and first time conical surface 71, splitted structure
On inner peripheral surface, first face of cylinder (72) of corresponding outer peripheral face and the first time conical surface (71) junction arrange the first inner conical surface 73；Starting taper
Seat 8 is tubular component, along the conical round table 80 that the circumference setting of this tubular articles end is raised；Conical round table 80 coaxially pushes up conjunction
First inner conical surface 73 limits the radial direction condensation of starting taper 7, and upper tapered sleeve 12 is linked on first face of cylinder 72, and first time conical surface 71 is deeply
First anchor mechanism 91 is simultaneously fastened in closing in metal anchors 96；
Power set include swimming nonyl locking nut 1, trip nonyl adapter sleeve 2, starting taper lock sleeve 3, center-pole 4, limiting locking spiral shell
Female 10, stop nut 11, release set 13, extension spring set 14 and extension spring pull bar 19, starting taper lock sleeve 3 is located at the top of starting taper 7 and leads
Bore 7 coaxial tops to close, starting taper seat 8 is coaxially linked in the periphery of center-pole 4, and fixed stop nut 11, limiting lock on center-pole 4
Stop nut 11 is locked together in the lower end of starting taper seat 8 by jack panel 10, and stop nut 11 can drive starting taper seat 8 to cut off lock pin 5；Draw
Spring pull bar 19 is coaxial docking by drag link sleeve with center-pole 4, and release set 13 is coaxially linked in the periphery of extension spring pull bar 19, extension spring set
14 peripheries being coaxially fastened on release set 13；
Second tapered sleeve erecting device includes lower tapered sleeve 15, extension spring 16 and spring base 17, and spring base 17 fixation is linked in extension spring
The periphery of pull bar 19 and the inner chamber positioned at extension spring 16；Spring base 17 can limit the radial direction condensation of extension spring 16, and lower tapered sleeve 15 is linked in
The periphery of extension spring 16；
Extension spring 16 is the tubular articles with the second splitted structure 160, and the axial direction along this splitted structure periphery is followed successively by
Two faces of cylinder 162 and second time conical surface 164, the circumference along this splitted structure axial direction is followed successively by raised the second inner conical surface 161 He
The 3rd raised inner conical surface 163；Spring base 17 is the tubular element with boss, and boss includes the circumference along tubular element axial direction
The first conical round table 170 setting gradually and the second conical round table 171；Second inner conical surface 161 coaxially pushes up conjunction the first conical round table
170, the 3rd inner conical surface 163 coaxially pushes up conjunction the second conical round table 171, and lower tapered sleeve 15 is linked on second face of cylinder 162, extension spring 16
Cylinder-shaped top go deep into the second anchor mechanism 92 and be fastened in closing in metal anchors 96；It is additionally provided with triconic on spring base 17
Round platform 172, the tip of second time conical surface 164 is corresponding with the position of triconic round platform 172；
Upper tapered sleeve 12 and lower tapered sleeve 15 respectively under the guiding of the first tapered sleeve erecting device and the second tapered sleeve erecting device, according to
The push-and-pull action power providing by subsidy power tool enters in the closing in metal anchors 96 on patching tube 9, and axial force is changed
Dilate power for radial direction closing in metal anchors 96, metallic packing ring 95 and rubber seal 93 are strutted and swollen, provide for anchor mechanism
Seal and pressure bearing and the support force of grappling, complete grappling, the sealing function of patching tube.
The sealing anchor member of the present invention and its assembling of erecting device and work process are：
(1) according to the thickness specification that the data needing sealing subsidy casing damaged well to be detected is determined with patching tube 9 before constructing
And length, the anchor mechanism of dimension is welded on the two ends of patching tube 9, weld seam inner and outer surfaces car is put down, uses Special seal
Detection slips closed weld carries out pressure-bearing detection, to be assembled after detection is qualified etc.；
(2) length according to patching tube 9 is equipped with the pull bar of appropriate length, will be mounted with limiting locking successively by drag link sleeve
The center-pole 4 of nut 10 and stop nut 11, the pull bar matched (some) and the second tapered sleeve erecting device assembling connect
Pick up, penetrate in the qualified stand-by patching tube of detection, patching tube 9 is inserted in the upper end of extension spring 16 in the second tapered sleeve erecting device
On the mouth of closing in metal anchors 96 in；To assemble by lock pin 5, starting taper seat 8, starting taper seat lock sleeve 6, starting taper 7 and upper tapered sleeve
First tapered sleeve erecting device of 12 compositions is enclosed within from the center-pole 4 that the oral area of the first anchor mechanism 91 of patching tube stretches out, then
First splitted structure 70 of starting taper 7 on the first tapered sleeve erecting device is inserted in the mouth of the closing in metal anchors 96 on patching tube 9, will
Trip nonyl adapter sleeve 2 is connected on the termination of center-pole 4, and starting taper lock sleeve 3 adapter sleeve is on starting taper seat lock sleeve 6, and starting taper is locked
Tight set 3 is reversely screwed with starting taper 7, then blocks trip nonyl adapter sleeve 2 with clamp, screws trip nonyl locking nut 1, clamp is fixed on and leads
In cone lock sleeve 3, simultaneously will be tightly fixing with the middle patching tube with sealing anchor member for first, second tapered sleeve erecting device
Complete to subsidize the assembling of guard system together.
(3) subsidy guard system is transported to behind the job site of oil field together with subsidy power tool, first will subsidize under guard system
Enter well head, sling subsidy power tool with workover rig hook, power tool lower end piston rod upstream nonyl will be subsidized first and pass through spiral shell
Stricture of vagina is connected on the trip nonyl adapter sleeve 2 of subsidy guard system upper end, then will swim nonyl locking with trip nonyl locking nut 1, removes starting taper lock
Clamp in tight set 3, the setting cylinder of the power tool lower end of backspin subsidy afterwards, made on setting cylinder and subsidy guard system by screw thread
Starting taper lock sleeve 3 connect, tightening setting cylinder locking nut prevents from releasing, complete subsidize power tool and subsidy guard system company
By in whole system lower going-into-well after connecing, using oil pipe or drill pipe transmission, subsidy power tool and subsidy guard system are delivered to and treat
Subsidy section；Accurately adjust the position of patching tube according to well logging school depth data, meet the sealing subsidy to casing failure well section and require,
Through calculation and check confirm errorless after start subsidy power tool work, subsidy power tool in the presence of by center-pole 4, extension spring
The system of pull bar 19 and the second tapered sleeve erecting device composition and the body being made up of piston cylinder, setting cylinder and the first tapered sleeve erecting device
System does moving axially relative, by the two stage conical body that is made up of starting taper 7 and upper tapered sleeve 12 and by extension spring 16 and lower tapered sleeve 15
Axial force is changed into patching tube 9 two ends closing in metal anchors 96, metallic packing ring 95 and rubber the two stage conical body of composition
The radial direction of glue sealing ring 93 dilates power, and extruding makes them swell, and forms interference fit with sleeve pipe, realizes the grappling of patching tube 9, close
Envelope function；
(4) after upper tapered sleeve 12 enters in the mouth of closing in metal anchors 96 under the guiding of starting taper 7, in subsidy power tool
There is provided under pulling force, with tie system motion, the stop nut 11 on center-pole 4 also is moved into the lower end of starting taper seat 8, and promotion is led
Cone seat 8 is moved, and cuts off the lock pin 5 limiting starting taper seat 8 movement, afterwards under the pulling force effect of subsidy power tool, starting taper seat 8
It pushed away from the first splitted structure 70 of starting taper 7, the conical surface 70 on starting taper seat 8 enters in the cavity of starting taper 7, realize the first tapered sleeve peace
Assembling device unfreezing；
Subsidy power tool works on, with first, second tapered sleeve erecting device respectively by upper tapered sleeve 12 and lower tapered sleeve
15 pushing and withstanding enter to close up in metal anchors 96, and the axial force of subsidy power tool output also constantly increases, when the effect of upper and lower tapered sleeve
Radial direction on anchor mechanism (closing in metal anchors 96, metallic packing ring 95 and rubber seal 93) dilate power and anchor mechanism,
When balancing each other to their restraining forceies in sleeve pipe and stratum, anchor mechanism stops swell, now, by piston rod, pull bar and the second cone
The system of set erecting device composition stops doing axial phase with by the system that piston cylinder, setting cylinder and the first tapered sleeve erecting device form
To motion, the whole active forces on pull bar act on release set 13 breaking grooves the weakest, when the pulling force of pull bar reaches fracture
During the tensile fracture value of groove, release set 13 ruptures at breaking groove, and post-rift release set 13 relieves extension spring 16 and extension spring is drawn
The axially-movable of bar 19 limits, and unbalanced extension spring pull bar 19 drives spring base 17 to move together and be retracted into the cavity of extension spring 16
Interior, release the restriction of the second splitted structure radial contraction to extension spring 16 for the spring base 17, the second splitted structure of extension spring 16 is drawing
The pulling of spring pull bar 19 is lower to be covered together with 17 along the horn mouth slip of lower tapered sleeve 15 and in radial contraction entrance patching tube 9 with extension spring,
Realize the second tapered sleeve erecting device unfreezing, finally will subsidize power tool, the first tapered sleeve erecting device, pull bar and with workover rig
Two tapered sleeve erecting devices propose well of constructing together, complete to subsidize seal of tube grappling.
The present invention improves the seal and pressure bearing of patching tube using the double containment anchoring structure of soft metal ring and rubber ring composition
Performance, makes rubber seal be protected during going into the well using closing in metal anchors 96 structure, and first will close up during subsidy metal
The oral area of anchor 96 struts, and tapered sleeve is introduced, and by the extruding of tapered sleeve, anchor mechanism is swollen, and forms interference fit with sleeve pipe, real
Now subsidize seal of tube grappling, after epicone covers into closing in metal anchors, make the first cone using subsidy power tool itself relative motion
Set erecting device unfreezing, covers fracture by control release after completing to subsidize seal of tube grappling and completes the second tapered sleeve erecting device solution
Card, after patching tube installation terminates, instrument of subsidizing all proposes, and completes construction operation.
Claims (6)
1. a kind of casing patching sealing anchor member, this component includes patching tube (9) and anchor mechanism it is characterised in that institute
The anchor mechanism stated includes rubber seal (93), back-up ring (94), metal o-ring (95) and closing in metal anchors (96), and rubber is close
Seal (93), back-up ring (94), metal o-ring (95) are linked in closing in successively along the axial direction closing up away from closing in metal anchors (96)
The closing in portion of metal anchors (96)；
The non-closing in portion of described closing in metal anchors (96) is coaxially affixed with patching tube (9)；
Described anchor mechanism includes the first anchor mechanism (91) and the second anchor mechanism (92), the first anchor mechanism (91) and
The structure of two anchor mechanisms (92) is identical, and being installed in of the first anchor mechanism (91) and the second anchor mechanism (92) confronting coaxial
The two ends of patching tube (9)；
External diameter 2～the 6mm less than the external diameter of metal o-ring (95) of described rubber seal (93), rubber seal (93)
Thickness is more than the thickness 1～3mm of metal o-ring (95).
2. a kind of erecting device is it is characterised in that described erecting device includes power set and the axial direction along power set sets
The first tapered sleeve erecting device, sealing anchor member and the second tapered sleeve erecting device put, wherein, described sealing anchor member is
Casing patching described in claim 1 sealing anchor member；
The lower end of the first tapered sleeve erecting device deeply seals the upper port of anchor member, and the upper end of the second tapered sleeve erecting device is deeply
The lower port of anchor member, under the drive of power set, the first tapered sleeve erecting device and the second tapered sleeve erecting device do relative
Move and the upper and lower port of sealing anchor member swells and carry out the sealing of damaged pipe；
The first described tapered sleeve erecting device includes lock pin (5), starting taper seat lock sleeve (6), starting taper (7), starting taper seat (8) and epicone
Set (12), the lower end of starting taper seat lock sleeve (6) is fixedly connected with the upper end fit of starting taper (7), the upper end of starting taper seat lock sleeve (6)
Setting lock pin (5), starting taper seat (8) is locked together in the inner circumferential of starting taper seat lock sleeve (6) by lock pin (5), and starting taper seat (8) can limit starting taper
(7) condensation of radial direction, upper tapered sleeve (12) is linked in the periphery of starting taper (7)；
Described power set include swimming nonyl adapter sleeve (2), starting taper lock sleeve (3), center-pole (4) release set (13), extension spring set
(14) and extension spring pull bar (19), starting taper lock sleeve (3) top coaxial with starting taper (7) is closed, and starting taper seat (8) is coaxially linked in center-pole
(4) periphery, and in the upper fixed stop nut of center-pole (4), stop nut can drive starting taper seat (8) to cut off lock pin (5)；Draw
Spring pull bar (19) is coaxial docking by drag link sleeve with center-pole (4), and release set (13) is coaxially linked in the outer of extension spring pull bar (19)
In week, extension spring set (14) is coaxially fastened on the periphery of release set (13)；
The second described tapered sleeve erecting device includes lower tapered sleeve (15), extension spring (16) and spring base (17), and spring base (17) is fixing
The periphery being linked in extension spring pull bar (19) and the inner chamber being located at extension spring (16)；Spring base (17) can limit the radial direction contracting of extension spring (16)
Close, lower tapered sleeve (15) is linked in the periphery of extension spring (16).
3. erecting device as claimed in claim 2 is it is characterised in that described release set (13) is the tubular part of inverted T shape,
Extension spring set (14) is coaxially fastened in release set (13), and release set (13) outer surface is provided with circumferential separation groove.
4. erecting device as claimed in claim 2 or claim 3 is it is characterised in that described starting taper (7) is the tubular structure that can be condensed
Part, along axially arranged multiple splitted structures of this tubular articles, the outer peripheral face of splitted structure includes setting gradually from top to bottom
First face of cylinder (72) and first time conical surface (71), on the inner peripheral surface of splitted structure first face of cylinder (72) of corresponding outer peripheral face with
The position of the first time conical surface (71) junction arranges the first inner conical surface (73)；
Described starting taper seat (8) is tubular component, along the conical round table (80) that the circumference setting of this tubular articles end is raised；
The radial direction condensation that the first inner conical surface (73) limits starting taper (7), upper tapered sleeve (12) are closed in the coaxial top of described conical round table (80)
It is linked on first face of cylinder (72), first time conical surface (71) deeply seals the upper port of anchor member.
5. erecting device as claimed in claim 2 or claim 3 is it is characterised in that described extension spring (16) is with splitted structure
Tubular articles, the axial direction along this splitted structure periphery is followed successively by second face of cylinder (162) and second time conical surface (164), along this point
The circumference of valve structure axial direction is followed successively by second inner conical surface (161) of projection and the 3rd raised inner conical surface (163)；
Described spring base (17) is the tubular element with boss, described boss include along tubular element axial direction circumference according to
First conical round table (170) of secondary setting and the second conical round table (171)；
The first conical round table (170) is closed on the coaxial top of described the second inner conical surface (161), and the 3rd inner conical surface (163) is coaxial to push up conjunction the
Two conical round table (171), lower tapered sleeve (15) is linked on second face of cylinder (162), and the cylinder-shaped top of extension spring (16) gos deep into close
The lower port of envelope anchor member.
6. erecting device as claimed in claim 5 is it is characterised in that be additionally provided with triconic circle on described spring base (17)
Platform (172), the tip of second time conical surface (164) is corresponding with the position of triconic round platform (172).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410763502.XA CN104453763B (en) | 2014-12-11 | 2014-12-11 | Sealing anchoring member for casing patching and mounting device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410763502.XA CN104453763B (en) | 2014-12-11 | 2014-12-11 | Sealing anchoring member for casing patching and mounting device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104453763A CN104453763A (en) | 2015-03-25 |
| CN104453763B true CN104453763B (en) | 2017-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410763502.XA Active CN104453763B (en) | 2014-12-11 | 2014-12-11 | Sealing anchoring member for casing patching and mounting device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104453763B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107869313A (en) * | 2016-09-26 | 2018-04-03 | 中国石油化工股份有限公司 | A kind of hollow rod elevated-temperature seal attachment means and connection method |
| CN107387013B (en) * | 2017-07-17 | 2023-05-26 | 北方斯伦贝谢油田技术（西安）有限公司 | Multi-ring metal framework sealing anchoring component, patch pipe component and mounting device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2240039Y (en) * | 1995-10-19 | 1996-11-13 | 大庆石油管理局采油工艺研究所 | Hydraulic casing fastener |
| CN2813877Y (en) * | 2005-08-21 | 2006-09-06 | 长庆石油勘探局 | Oil-gas well casing repairing device |
| CN201078210Y (en) * | 2007-08-01 | 2008-06-25 | 杨龙飞 | Self-locking type multilevel multicomponent seal padding tube |
| CA2749593C (en) * | 2008-04-23 | 2012-03-20 | Weatherford/Lamb, Inc. | Monobore construction with dual expanders |
| CN202926238U (en) * | 2012-10-18 | 2013-05-08 | 中国石油化工股份有限公司 | Expansion short piece special for expansion sleeving |
| CN203702047U (en) * | 2014-03-10 | 2014-07-09 | 刘书豪 | Anchoring structure and downhole plugging device |
-
2014
- 2014-12-11 CN CN201410763502.XA patent/CN104453763B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104453763A (en) | 2015-03-25 |
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