CN107882515A - A kind of sleeve pipe suspending apparatus - Google Patents
A kind of sleeve pipe suspending apparatus Download PDFInfo
- Publication number
- CN107882515A CN107882515A CN201610859646.4A CN201610859646A CN107882515A CN 107882515 A CN107882515 A CN 107882515A CN 201610859646 A CN201610859646 A CN 201610859646A CN 107882515 A CN107882515 A CN 107882515A
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- Prior art keywords
- sleeve pipe
- arm
- hanging
- righting
- extensible arm
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- 239000000463 material Substances 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 239000007769 metal material Substances 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 19
- 239000004568 cement Substances 0.000 abstract description 15
- 238000005553 drilling Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000002343 natural gas well Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 239000003129 oil well Substances 0.000 description 5
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 210000001320 hippocampus Anatomy 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
- E21B33/14—Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a kind of sleeve pipe suspending apparatus, including：Body, upper extensible arm, lower extensible arm and hanging arm；Extension spring is used to shrink, extend, support hanging arm；The top and bottom side wall of body offers bolt hole, installs fixing bolt；Solvable pin locking sliding support ring, extended state is set in by extension spring；Solvable pin is behind underground, chance cement, by molten disconnected, release extension spring；Extension spring is shunk, and slidably supports ring middle slip；Extensible arm and hanging arm move to middle shrinkage；Opened to outer support, sleeve pipe support, righting, placed in the middle, vacantly.The present invention plows tripping in sleeve pipe or tail pipe one, is placed in outside sleeve pipe, external diameter is small, enlarged outside diameter after opening；It is pollution-free without cased bore-bole without hydraulic open, no tripping in quantity limitation, not by casing wall thickness, screw thread, Effect of Materials；Drilling fluid is improved, uprighting force is stable, improves cementing quality；Extend the producing well life-span, be adapted to be applicable in High angle, horizontal well.
Description
Technical field
Oil/gas Well tripping in sleeve pipe, tripping in tail pipe, well cementing operation and well cementation downhole tool technical field are the utility model is related to,
More particularly, to a kind of well cementing of cement device.
Background technology
Well cementation is to be drilled an indispensable important step during well operations, and it includes setting of casing, tail pipe and water filling
Mud.Cementing technology has the characteristics of systematicness, the disposable and time is short, and the main purpose of well cementation is in protection and support Oil/gas Well
Sleeve pipe, tail pipe, the stratum such as packing oil, gas and water.
Uppermost well cementation is that surface pipe is cemented the well, and intermediate casing cementing, most deep well are descended toward contact in drilling process
Bottom wants tripping in tail pipe (including extension hanger etc.) to cement the well toward contact, as the tunnel in the tunnel of highway, colliery, drilling well
Also well slough, high pressure and unstable stratum can be run into journey.Before oil reservoir does not drill, oil gas water is in the earth formation in balance and packing
State, drill rear oil-gas-water layer and be connected.So in order to exploit oil gas, it is necessary to lower production string cementing, by oil gas water
The tight packing of layer；Meanwhile production string is the passage that oil-gas reservoir conveys to well head in production.
Casing stabbing board is the raising well cementing of cement quality critical device after sleeve pipe lower going-into-well, and its effect is naked by sleeve pipe
The annular space of the eye borehole wall is hanging, support, righting, gets up between two parties, by well cementing of cement to insulate oil-gas-water layer, turns into sleeve pipe
The passage that oil gas leads in well.
Therefore, the related supporting casing stabbing board equipment of well cementing operation is able to extensive use.
The related supporting casing stabbing board of well cementing operation both domestic and external at present mainly has two kinds of forms：
The first is well cementation elastic centralizer.Casing centering, the well cementation elastic centralizer cannot be guaranteed by spring leaf
Casing centering, it is placed in the middle, vacantly get up：Particularly in high angle hole, horizontal well, influenceed by sleeve pipe gravity；Sleeve pipe is not placed in the middle；
Cementing quality is bad.
Second of well cementation rigid centralizer.Although the well cementation rigid centralizer ensure that the sleeve portion of pit shaft is placed in the middle, but
It is to accomplish completely placed in the middle, is still the problem of industry particularly in net horizontal section, reaming hole well section, pregnant well section.To cement
Well cementing operation brings difficulty, and difficulty is brought to sealing quality after well cementing of cement；Difficulty is brought to Inter-zonal packing；Oil supply air water every
From bringing difficulty；It is unfavorable for the permanently effective production of cased well.
(patent name is Chinese patent CN 201210359506.2：Hydraulic casing pipe centering device；The applying date is：
2014.04.23；) disclose a kind of casing stabbing board of hydraulic open formula.
Including：A kind of hydraulic casing pipe centering device；For righting bunch tube；Characterized in that, the hydraulic casing pipe centering device
Including central tube, righting joint, the first ball, bearing pin, the first fixed cover, fluid cylinder, fixing screws, the second ball, the second fixed cover, work
Plug, hydraulic channel, valve, plug, righting arm, swash plate and extension spring；One end of the central tube covers the then righting joint；It is described
One end of the relatively described central tube of righting joint is stretched out；A part for embedded first ball on the outer wall of the righting joint,
First ball is fixed on the outer wall of the righting joint by first fixed cover, and the other part of first ball is by institute
State the stretching of the first fixed cover；First ball is used for righting described sleeve pipe string, and the other end of the central tube covers the then liquid
Cylinder, the relatively described fluid cylinder of the central tube are stretched out, and the fluid cylinder is connected with the central tube by the fixing screws, the liquid
A part for embedded second ball, second ball are fixed on the fluid cylinder by second fixed cover on the outer wall of cylinder
Outer wall, the other part of second ball are stretched out by second fixed cover, and second ball is used for righting described sleeve pipe string, institute
State and the piston be provided between fluid cylinder and the central tube, the piston can fluid cylinder axial movement relatively, in the fluid cylinder
Provided with hydraulic channel, the piston is connected by the hydraulic channel and the central tube, the plug pass through the central tube
And the hydraulic channel is blocked, the righting arm and the swash plate are sequentially arranged between the righting joint and the fluid cylinder,
One end of the righting arm is connected with the righting joint by bearing pin, the inclined-plane of the other end of the righting arm and the swash plate
Mutually ratcheting, the righting arm is used for righting described sleeve pipe string, and the swash plate right-angle side is supported on the piston, and the swash plate is used
In propping up the righting arm, the righting arm is provided with the extension spring；In described sleeve pipe string decentralization process and Process of Cementing,
The righting arm is not worked, and by first ball and the second ball righting described sleeve pipe string, during well cementation, the plug is hit
Fall, the hydraulic channel and described sleeve pipe series winding are logical, and described sleeve pipe string builds the pressure, and act on the piston by pressure and promote institute
Swash plate movement is stated, forces the righting arm to be opened, so as to righting described sleeve pipe string.
(patent name is Chinese patent CN 201420718130.4：Biliquid cylinder sleeve pipe hydraulic centralizing device)；The applying date is：
2014.11.26) disclose：Biliquid cylinder sleeve pipe hydraulic centralizing device.
Including：A kind of biliquid cylinder sleeve pipe hydraulic centralizing device, it is characterised in that including central tube, righting support spring, left hydraulic pressure
Device and right hydraulic means；The righting support spring outwards propped up in the middle part of energy is installed in the middle part of central tube, it is left in righting support spring
The left hydraulic means that righting support spring left end side can be pushed away to the right is installed with the central tube of side；In righting support spring right-hand member
Central tube on be installed with the right hydraulic means that righting support spring right-hand member side can be pushed away to the left.
Hydraulic centralizing device technical field is the utility model is related to, is a kind of biliquid cylinder sleeve pipe hydraulic centralizing device；During it includes
Heart pipe, righting support spring, left hydraulic means and right hydraulic means；The righting outwards propped up in the middle part of energy is installed in the middle part of central tube
Support spring, the left hydraulic pressure that righting support spring left end side can be pushed away to the right is installed with the central tube on the left of righting support spring
Device；The right hydraulic pressure that righting support spring right-hand member side pushes away to the left can be filled by being installed with the central tube of righting support spring right-hand member
Put.The utility model reasonable and compact in structure, it is easy to use；The double-cylinder structure of left hydraulic means and right hydraulic means, meeting
Righting support spring can compress prop up on the premise of, effectively reduce well head injection pressure pressure, reduce and equipment suppressed to ground
Pressure use demand, cost are low；The horizontal well for being more suitable for Masaru Ibuka uses, and reliability is higher.
(patent name is Chinese patent CN 201320600984.8：Casing stabbing board)；The applying date is：2013.09.27)
Disclose a kind of casing stabbing board.
Including：Mainly by central tube, fluid cylinder, adapter sleeve, active carrier bar, driven carrier bar, pop-up, subiculum, pin, sealing
Circle, retaining ring, retaining ring cap are formed.Central tube is provided with inlet opening.Fluid cylinder is connected with retaining ring seat by adapter sleeve, retaining ring
Seat is connected with central tube by pin.Active carrier bar is connected with driven carrier bar by pin, forms hinge.Pop-up and subiculum difference
Upper and lower side with hinge connects.The hinge type casing stabbing board, it is ensured that hinge type casing stabbing board is lower safely to arrive well design
Position, drilling fluid can be effectively improved, improve cementing quality.Casing stabbing board, it is characterized in that including：Central tube, it is enclosed on
Central tube is outer and the fluid cylinder set for the sealing cooperation that slides axially is formed with central tube, is enclosed on outside central tube and covers the upper of linkage with fluid cylinder
Support and suit are fixed on the subiculum of central tube bottom, the active carrier bar by mutual hinge and driven carrier bar between upper and lower support
It is respectively more than two and be distributed on the upper and lower support outside central tube with corresponding upper and lower support hinge, active carrier bar and driven carrier bar
Between, hydraulic pressure through hole is radially opened up on central tube, through hole is located at the inner annular cavity corresponding position with fluid cylinder set.
Chinese patent CN 201210359506.2 is it cannot be guaranteed that integrality, the sealing of bunch tube；Long-term production of hydrocarbons
Afterwards, corrosion failure, fluid cylinder and piston seals fail be present, leakage pressure, divulge a secret.Chinese patent CN 201420718130.4 can not
Ensure the integrality of bunch tube；Sealing；After long-term production of hydrocarbons, the sealing of corrosion failure, more fluid cylinders and piston be present
Part fails, and leakage pressure, divulges a secret, inside and outside to gang up.Chinese patent CN 201320600984.8 is it cannot be guaranteed that the integrality of bunch tube；It is close
Feng Xing；After long-term production of hydrocarbons, the seal fails of corrosion failure, fluid cylinder and piston be present, leakage pressure, divulge a secret, inside and outside oil gas water
Gang up.Can exist production of hydrocarbons leak, alter, the difficult situation of interlayer interference.
Utility model content
The purpose of this utility model is to provide a kind of new casing suspending apparatus (casing stabbing board), lived without hydraulic pressure
Fill in, without hydraulic cylinder, without seal；Ground pressure is not needed；Underground hydraulic pressure is not needed to open；And it can guarantee that bunch tube or tail
The overall tightness of pipe string.
A kind of sleeve pipe suspending apparatus provided by the utility model, including：Body and for hanging, righting extensible arm (bag
Include：Upper extensible arm, lower extensible arm) and hanging arm；
There is step the upper end of body；The upper portion side wall of body offers screwed hole, and fixing bolt is by screwed hole by body
Fixed with sleeve pipe；Lower end is provided with lower contact, and side wall also offers screwed hole, and fixing bolt is by screwed hole by body and sleeve pipe
It is fixed；The internal diameter of body is more than the external diameter of sleeve pipe, from the pin end of sleeve pipe, is inserted in the body part of sleeve pipe.
The extensible arm, hanging arm include：Upper extensible arm and lower extensible arm；It can be moved up and down along body；In stretching bullet
Under the guiding of the active force of spring, shunk to body middle position；Support hanging arm to external expansion, support, hanging, righting, placed in the middle
Bunch tube；
The body top and bottom are separately provided for limiting extensible arm, the first limiting section of hanging arm position and the
Two limiting sections.
The utility model is with bunch tube decentralization process and before cementing；The extensible arm, hanging arm not to external expansion,
After tripping in oil well or the natural gas well, in Process of Cementing, pass through the molten solvable pin that breaks；So that the extension spring is shunk；Expand
Swing arm, hanging arm shrink under the guiding of the active force of extension spring to body middle position；Support hanging arm to external expansion,
Supporting sleeve string, force hanging, righting, described sleeve pipe string placed in the middle.
The extensible arm, hanging arm, which shrink, is stuck in the first limiting section so that sleeve pipe suspending apparatus minimum outer diameter, ensures this reality
It is good by property during with new initially tripping in oil well or the natural gas well；The tripping in of bunch tube is not influenceed.Tripping in oil well or the natural gas well
Afterwards, it is not necessary to use the unlatching of specialty, it is not necessary to suppress hydraulic pressure opening in ground；In Process of Cementing, pass through the molten solvable pin that breaks
Nail；Extensible arm, hanging arm are contracted to the second limiting section, under such a state, force hanging, righting, described sleeve pipe string placed in the middle.
Further, the solvable pin is made of soluble metal.
The solvable pin of sleeve pipe suspending apparatus is dissolved in cement in Process of Cementing, can farthest ensure to cover
Pipe is hanging, righting, placed in the middle, particularly in High angle well section, net horizontal section；Can be effectively ensured Oil/gas Well well cementing of cement it is clean and
It is unobstructed.
Further, described sleeve pipe suspending apparatus includes multiple extensible arms being circumferentially uniformly arranged along body, hanging arm, more
Individual extensible arm, hanging arm composition umbrella, tubular structure.
Further, first limiting section is the recessed taper surface set along lower contact inwall, first limiting section
Top external diameter is equal with the lower outer diameter of first limiting section.
Further, the upper end of the extension spring be provided be engaged with the recessed taper surface of the body upper end it is recessed
Groove.
Further, the outside of the extension spring by being provided with multiple extensible arms, hanging arm forms umbrella, tubular structure
Cladding, protection.
The setting of multiple extensible arms, hanging arm composition umbrella, tubular structure so that extension spring is protected more preferably, has
Effect prevents from being worn from entering well into bottom process.
Further, the extension spring is strength extension spring.
Further, the fixing bolt is that fine groove spiral shell (or without nut) is made.
Compared with prior art, a kind of sleeve pipe suspending apparatus provided by the utility model has advantages below：
1st, tripping in is plowed with sleeve pipe or tail pipe one；
2nd, without extra surface mud pump, well cementation pump operation, cost is saved；
3rd, suppressed without ground, without being pressurizeed in sleeve pipe, sleeve pipe suspending apparatus is opened without underground hydraulic pressure, will not be to stratum
Pollution；
4th, without seal；It is adapted to apply in hp-ht well；
5th, before well cementing of cement starts, sleeve pipe suspending apparatus remains retracted state, minimum outer diameter；Facilitate sleeve pipe tripping in operation；
6th, after well cementing of cement starts, after solvable pin meets cement, the molten solvable pin that breaks；Sleeve pipe suspending apparatus keeps expansion shape
State, largest outside diameter；Vacantly, righting, described sleeve pipe string placed in the middle；
7th, vertical well section, High angle well section, net horizontal section are lowered into；It is unrestricted；
8th, tripping in quantity, depth of setting are unrestricted.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation when the utility model fixing bolt is unlocked preceding；
Structural representation when Fig. 2 is after the utility model fixing bolt is fixed；；
Structural representation when Fig. 3 has no progeny for solvable pin is molten in the utility model；
Fig. 4 is after the utility model is inserted in sleeve pipe or tail pipe, and fixing bolt is not fixed to the structure before sleeve pipe or tail pipe and shown
It is intended to；
Fig. 5 is that fixing bolt is fixed on the structural representation after sleeve pipe or tail pipe after the utility model is inserted in sleeve pipe or tail pipe
Figure；
Fig. 6 is that solvable pin is molten has no progeny in the utility model, by sleeve pipe or tail pipe support, hanging, righting, get up between two parties when
Structural representation；
Fig. 7 is the structural representation of fixing bolt in the utility model；
Fig. 8 is the structural representation of solvable pin in the utility model
Fig. 9 is solvable pin in the utility model by the molten structural representation having no progeny
Reference：
1- bodys；2- fixing bolts；
3- bolts hole；The upper extensible arms of 4-；
5- steady pins；The hanging arms of 6-；
7- extension springs；Extensible arm under 8-；
9- slidably supports ring；The solvable pins of 10-；
11- lower contacts；The limiting sections of 12- first；
The limiting sections of 13- second.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
Fig. 1 is structural representation when the utility model fixing bolt is unlocked preceding；Fig. 2 is the utility model fixing bolt
Structural representation when after fixation；Structural representation when Fig. 3 has no progeny for solvable pin is molten in the utility model；Fig. 4 is this reality
With it is new be inserted in sleeve pipe or tail pipe after, fixing bolt is not fixed to the structural representation before sleeve pipe or tail pipe；Fig. 6 is that this practicality is new
Solvable pin is molten in type has no progeny, by sleeve pipe or tail pipe support, hanging, righting, get up between two parties when structural representation；Fig. 7 is this
The structural representation of fixing bolt in utility model；Fig. 8 is the structural representation of solvable pin in the utility model；Fig. 9 is this
Solvable pin is by the molten structural representation having no progeny in utility model
As shown in figure 1, a kind of sleeve pipe suspending apparatus provided by the utility model, including：Body 1 and for hanging upper expansion
Swing arm 4, lower extensible arm 8 and hanging arm 6；Extension spring 7；Slidably support ring 9；Bolt hole 3；Fixing bolt 2；Solvable pin 10；
And lower contact 11；
The outer sleeve of the upper end of body 1 and lower end lower contact 11, the upper portion side wall of the outer sleeve of upper end offer bolt hole 3,
The lower sides of lower end lower contact 11 also offer bolt hole 3, and the bolt hole 3 is opened in outer sleeve and the lower end lower contact of upper end
Side wall；
The upper extensible arm 4, lower extensible arm 8 and hanging arm 6；Extension spring 7；Ring 9 is slidably supported, is closely agreed with；Mutually
Connection and cooperation are slided；
The sliding support ring 9；The outer sleeve of the upper end of body 1；Lower contact 11 is provided with extension spring 7 in lower end to be used for
The first limiting section 12 and the second limiting section 13 of the position of limit slippage support ring 9；
The fixing bolt 2；By the outer sleeve of the upper end of body 1；Lower contact 11；It is fixedly connected with sleeve pipe；
The solvable pin 10；Ring 9 will be slidably supported；With lower contact 11；It is fixedly connected with sleeve pipe；
The extension spring 7；Upper extensible arm 4 and lower extensible arm 8 are connected；Slide up and down.
In the present embodiment, when the utility model tripping in oil well or the natural gas well, sliding support ring 9 is stuck in the first limiting section 12
Position, when ensureing the initial tripping in oil well of the utility model or the natural gas well, minimum outer diameter；It is easy to be lowered into shaft bottom.Tripping in oil
After well or the natural gas well, solvable pin 10 meets cementing concrete；The molten solvable pin 10 that breaks；Release sliding support ring 9；Extension spring 7
Shrink, sliding support ring 9 is slided from the first limiting section 12 to the second limiting section 13；Upper extensible arm 4, hanging arm 6, lower expansion simultaneously
Swing arm 8 is shunk under the guiding of the active force of extension spring to body middle position；Support hanging arm to external expansion, support set
Pipe string, force support, hanging, righting, described sleeve pipe string placed in the middle.
Compared with prior art, a kind of sleeve pipe suspending apparatus provided by the utility model has advantages below：
1st, tripping in is plowed with sleeve pipe one, operation one, which plows, to be continuously finished, and saves the time；
2nd, without ground pressure, without hydraulic open；
3rd,, will not be to formation contaminant without pressure transmission hole without being drilled in sleeve body；
4th, tripping in endless number system, not by casing wall thickness, screw thread, Effect of Materials；
5th, do not influenceed by bore hole reducing, it is good by property；
6th, before well cementing of cement starts, sleeve pipe suspending apparatus remains retracted state, minimum outer diameter；Facilitate sleeve pipe tripping in operation；
7th, after well cementing of cement starts, after solvable pin meets cement, the molten solvable pin that breaks；Sleeve pipe suspending apparatus keeps expansion shape
State, largest outside diameter；Vacantly, righting, described sleeve pipe string placed in the middle；
8th, drilling fluid is effectively improved, uprighting force is stable, improves cementing quality, extends the life-span of producing well；
7th, without seal；It is adapted to be applicable in deep water, HTHP, High angle, horizontal well.
The solvable pin 10 is made of soluble metal.
After a couple of days, the molten solvable pin having no progeny is dissolved in well liquid, can farthest ensure that pit shaft will not be deposited
In residual fragment, the clean and unobstructed of Oil/gas Well can be effectively ensured.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (8)
- A kind of 1. sleeve pipe suspending apparatus, it is characterised in that including：Body and the extensible arm placed in the middle for righting, hanging arm etc.；The top and bottom of body are separately installed with bolt hole, and fixing bolt will be managed by the bolt hole opened up in upper end side wall Body top and bottom are fixed with sleeve pipe；The extensible arm, hanging arm pass through fixed pin connection；Body upper end is connected by steady pin with extensible arm；Bottom of the pipe is led to Cross steady pin to be connected with extensible arm, hanging arm is connected by steady pin with upper and lower two extensible arm；It can be revolved by fixed pin connection Turn；The extensible arm of the lower end can be rotated with sliding support ring by fixed pin connection；Sliding support ring limitation extensible arm, Hanging arm is in the first limiting section and the second limiting section of position.
- 2. sleeve pipe suspending apparatus according to claim 1, it is characterised in that the body is made of metal.
- 3. sleeve pipe suspending apparatus according to claim 1 or 2, it is characterised in that the solvable pin is by soluble metal material Material is made.
- 4. sleeve pipe suspending apparatus according to claim 3, it is characterised in that first limiting section is to be set along tube wall The lower end for the cylinder put, second limiting section are the upper end of the cylinder set along tube wall, and sliding support ring is in institute State the first limiting section, the second limiting section it is bottom-up (or be inverted：Slide from up to down).
- 5. the second limiting section according to claim 4, it is characterised in that described extensible arm, hanging arm are after extension Position；Largest outside diameter；By sleeve pipe is hanging, righting, placed in the middle.
- 6. sleeve pipe suspending apparatus according to claim 5, it is characterised in that described extensible arm, hanging arm tripping in process In and circulating mud during do not open.
- 7. sleeve pipe suspending apparatus according to claim 6, it is characterised in that its external diameter is small；Tripping in frictional resistance can effectively be reduced.
- 8. sleeve pipe suspending apparatus according to claim 1, it is characterised in that described body is easy for installation；Using simple； It is not required to increase extra construction equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610859646.4A CN107882515A (en) | 2016-09-29 | 2016-09-29 | A kind of sleeve pipe suspending apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610859646.4A CN107882515A (en) | 2016-09-29 | 2016-09-29 | A kind of sleeve pipe suspending apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107882515A true CN107882515A (en) | 2018-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610859646.4A Pending CN107882515A (en) | 2016-09-29 | 2016-09-29 | A kind of sleeve pipe suspending apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899006A (en) * | 2017-12-08 | 2019-06-18 | 陈晓新 | A kind of new casing tail pipe metallic elastic deformation suspending apparatus |
| RU2722325C1 (en) * | 2019-05-30 | 2020-05-29 | Общество с ограниченной ответственностью "Газпромнефть Научно-Технический Центр" (ООО "Газпромнефть НТЦ") | Antipolar anchor |
| CN111287732A (en) * | 2020-04-01 | 2020-06-16 | 中国石油天然气集团有限公司 | Device and method for detecting and evaluating sealing performance of cement sheath of oil-gas well |
| CN111594063A (en) * | 2020-05-22 | 2020-08-28 | 中国农业大学 | Variable-diameter centralizer activated by chemical signal and using method thereof |
-
2016
- 2016-09-29 CN CN201610859646.4A patent/CN107882515A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899006A (en) * | 2017-12-08 | 2019-06-18 | 陈晓新 | A kind of new casing tail pipe metallic elastic deformation suspending apparatus |
| RU2722325C1 (en) * | 2019-05-30 | 2020-05-29 | Общество с ограниченной ответственностью "Газпромнефть Научно-Технический Центр" (ООО "Газпромнефть НТЦ") | Antipolar anchor |
| CN111287732A (en) * | 2020-04-01 | 2020-06-16 | 中国石油天然气集团有限公司 | Device and method for detecting and evaluating sealing performance of cement sheath of oil-gas well |
| CN111594063A (en) * | 2020-05-22 | 2020-08-28 | 中国农业大学 | Variable-diameter centralizer activated by chemical signal and using method thereof |
| CN111594063B (en) * | 2020-05-22 | 2021-10-01 | 中国农业大学 | Variable-diameter centralizer activated by chemical signal and using method thereof |
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Application publication date: 20180406 |