CN110145255A - One kind can bore packer and setting tool - Google Patents
One kind can bore packer and setting tool Download PDFInfo
- Publication number
- CN110145255A CN110145255A CN201910525305.7A CN201910525305A CN110145255A CN 110145255 A CN110145255 A CN 110145255A CN 201910525305 A CN201910525305 A CN 201910525305A CN 110145255 A CN110145255 A CN 110145255A
- Authority
- CN
- China
- Prior art keywords
- spool
- valve body
- packer
- inner sleeve
- slips
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004568 cement Substances 0.000 claims abstract description 32
- 239000002002 slurry Substances 0.000 claims abstract description 32
- 230000000694 effects Effects 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 20
- 230000001186 cumulative effect Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 abstract description 2
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 16
- 238000012856 packing Methods 0.000 description 11
- 229920003266 Leaf® Polymers 0.000 description 9
- 230000004308 accommodation Effects 0.000 description 8
- 239000003292 glue Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 210000003746 feather Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer 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
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
-
- 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
- E21B33/12—Packers; Plugs
- E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
-
- 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
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)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The present invention relates to petroleum technology fields, and in particular to can bore packer and setting tool, wherein can bore packer includes: inner sleeve, inner sleeve is configured to column；Check valve assembly, check valve assembly are removably sheathed with inner sleeve, and check valve assembly includes: valve body, and valve body has valve chamber, accommodating cavity and radially distributed cement slurry hole, and accommodating cavity engages inner sleeve；Spool, spool are contained in valve chamber and extend valve rod in the side backwards to inner sleeve；Cover piece, cover piece are releasably coupled valve body so that spool to be limited in valve body；Elastic component, elastic component are nested on valve rod, and one end of elastic component abuts spool, and the other end of elastic component abuts cover piece；Spool is configured to when by external force compression elastic piece so that cement slurry hole is connected, and resets when external force disappears under the restoring force effect of elastic component to close cement slurry hole.
Description
Technical field
The present invention relates to petroleum technology fields, and in particular to for be classified recover the oil bore packer and setting tool.
Background technique
Packer is mainly used for being layered in oil recovery process.Packer usually requires and sets in use work
Tool cooperates to complete packing operation.Existing packer mainly includes inner sleeve, valve module, upper slips, upper tapered sleeve, gum cover, lower card
Watt, lower tapered sleeve, convergence set etc..Wherein, valve module includes valve body and spool.Inner sleeve is releasably coupled valve body, and spool is contained in
In the space limited by the inner cavity of inner sleeve and the valve chamber of valve body.Lower slips are located above valve body, lower tapered sleeve, gum cover and upper tapered sleeve
Put in being sequentially sleeved at, and between lower tapered sleeve and gum cover, be arranged with to hold between gum cover and upper tapered sleeve and stay ring, hold and stay ring
Shape is adapted with upper tapered sleeve, gum cover and lower tapered sleeve adjacent to each other.Epicone set top arrange upper slips, upper slips usually by
4 valves composition.Packer is located in the required position of internal surface of sleeve pipe by the ratchet that upper slips and lower slips are arranged using its surface.It receives
The upper part for being set in spool is held back, sealing ring is arranged in convergence set lower section.When cement slurry hole is opened, the spool of the packer
4 valve arcuation casings are in bending, and such shape is easily broken, so as to cause the failure of cement slurry bore closure.In addition, by
Thousands of meters in well of position is dropped to from well head in packer, the sundries such as silt, crystal salt in casing easily pass through the packing
Cement slurry hole on the valve body of device enters valve inner, this be easy to make spool in forniciform arcuation casing and restrain set
Between blocked by these sundries, and then lead to the failure when upper poppet-valve core is to close cement slurry hole.Therefore, above-mentioned packer due to
The defect of its own structure is easy to be caused packing operation failure by the influence of set mixed and disorderly substances in pipe during operation.
Based on this, the present invention, which provides, a kind of novel bores packer and setting tool used in conjunction with is above-mentioned to overcome
One of defect.
Summary of the invention
Therefore, the task of the present invention is providing a kind of setting tool that can be bored packer and be used cooperatively with the packer,
The shortcomings that overcoming the above-mentioned prior art whereby.
In order to complete above-mentioned task, the present invention, which provides one kind, can bore packer comprising: inner sleeve, the inner sleeve are constructed
At column；Check valve assembly, the check valve assembly are removably sheathed with the inner sleeve, and the check valve assembly includes: valve
Body, the valve body have valve chamber, accommodating cavity and radially distributed cement slurry hole, and the accommodating cavity engages the inner sleeve；Valve
Core, the spool are contained in the valve chamber and extend valve rod in the side backwards to the inner sleeve；Cover piece, the cover piece can
Engage the valve body releasably the spool to be limited in the valve body；Elastic component, the elastic component are nested in the valve
On bar, and one end of the elastic component abuts the spool, and the other end of the elastic component abuts the cover piece；The spool
It is configured to compress the elastic component when by external force so that the cement slurry hole is connected, and when external force disappears described
The restoring force effect of elastic component is lower to be resetted to close the cement slurry hole.
Preferably, sealing ring is also arranged on the valve body, the sealing ring is configured to the axial direction along the valve body
With the outer diameter being gradually increased.
Preferably, the sealing ring is configured to from the valve body close to one end of the inner sleeve to the valve body far from institute
The one end for stating inner sleeve has the outer diameter being gradually increased.
Preferably, the sealing ring has the flange that extends radially inwardly, and the valve body has to be adapted to the flange
Recess portion, the sealing ring are combined together with the valve body by the cooperation of the flange and the recess portion.
Preferably, the check valve assembly further includes seal plug, and the seal plug engages the cement slurry Kong Yimi
Seal the valve chamber.
Preferably, it is described bore packer further include successively be socketed on the interior set lower tapered sleeve, packer and on
Tapered sleeve, the lower tapered sleeve and the upper tapered sleeve are respectively conformal with the packer towards the side of the packer.
Preferably, one end of the spool towards the inner sleeve is also arranged with sealing element, the sealing element and the spool
It is configured to one.
Preferably, the packer that bores further includes upper slips and lower slips, and the upper slips are located at the epicone and put on,
The lower slips are located on the valve body, and the upper slips include multiple slips pieces and corresponding with the quantity of the slips piece
Spring leaf, each spring leaf is corresponding to be bonded on each slips on piece, and multiple slips pieces utilize the spring leaf
It is assembled into ring-type.
The present invention also provides a kind of setting tool, the setting tool includes lower linking tube, and the lower linking tube is configured to
Packer is bored with above-mentioned.
Preferably, the lower linking tube is plugged in the inner sleeve, and the lower linking tube abuts institute towards one end of the valve body
Spool is stated, the lower linking tube is configured to transmit external force to the spool so that the spool blocks or discharge the cement slurry
Hole.
It is obvious after reading the application that a part of other features and advantages of the present invention will be those skilled in the art
, another part will be described in conjunction with the accompanying in specific embodiment below.
Detailed description of the invention
Hereinafter, carrying out the embodiment that the present invention will be described in detail in conjunction with attached drawing, in which:
Fig. 1 is the schematic diagram of erection device assembly of the present invention；
Fig. 2 is the schematic diagram of center pipe assembly of the present invention；
Fig. 3 is the partial schematic diagram of setting tool of the present invention；
Fig. 4 is the schematic diagram of setting tool of the present invention；
Fig. 5 is the schematic diagram that the present invention can bore packer；
Fig. 6 is the schematic diagram of check valve assembly of the present invention；
Fig. 7 is the installation diagram of setting tool of the present invention and packer；
Fig. 8 is setting tool of the present invention and can bore working state schematic representation of the packer in casing；
Fig. 9 is the schematic diagram that nut initial position and trip positions are controlled in center pipe assembly of the present invention；
Figure 10 is the state diagram that the cam bit of cam block assembly of the present invention pops up；
Figure 11 is shown during central tube uplink, the schematic diagram that upper tapered sleeve is contacted with upper slips；
Figure 12 is shown during central tube uplink, the signal that the shoulder of central tube is contacted with the shoulder of controller perturbation connector
Figure；
Figure 13 is shown during central tube uplink, and the ratchet of upper slips is embedded in casing, the schematic diagram of lower slips rupture；
Figure 14 is shown during central tube uplink, gum cover expansion, the schematic diagram of the ratchet insertion casing of lower slips；
Figure 15 shows the spool schematic diagram in the open state of check valve assembly；
Figure 16 is shown during grout injection, the schematic diagram that the seal plug of check valve assembly falls off；
The controller perturbation connector that Figure 17 shows cam block assembly is closed with the inner sleeve tripping and cement slurry hole that can bore packer
The schematic diagram closed；
Figure 18 shows setting tool and separates with that can bore packer, can bore the schematic diagram in packer closing cement slurry hole；
Figure 19 bores end-state of the packer in casing for of the invention.
Specific embodiment
Description is described in detail the exemplary of the setting tool according to the present invention for boring packer and matching
Scheme.There is provided attached drawing is in order to which multiple embodiments of the invention are presented, but attached drawing need not be drawn by the size of specific embodiment
System, and certain features can be amplified, remove or office is cutd open to be better shown and explain the disclosure.In attached drawing
Partial component can carry out according to actual needs position adjustment under the premise of not influence technique effect.What is occurred in the description is short
Language " in the accompanying drawings " or similar term need not refer to all attached drawing or example.
It hereinafter be used to describe certain directional terminologies of attached drawing, such as "inner", "outside", "upper", "lower" and other
Directional terminology will be understood as having its normal meaning and criticize those related directions when often viewing attached drawing.Unless otherwise
It indicates, otherwise directional terminology described in this specification is substantially according to conventional direction understood by one of ordinary skill in the art.
Term " first " used in the present invention, " first ", " second ", " second " and its similar terms are in this hair
Any sequence, quantity or importance are not offered as in bright, but for distinguishing a components with other components.
The present invention, which provides one kind, can bore packer 4 and setting tool used in conjunction with 5.Wherein, setting tool 5 includes
Erection device assembly 1, center pipe assembly 3 and cam bit control assembly 2.Righting included by setting tool 5 will be filled below
Assembly 1, the associated components of center pipe assembly 3 and cam bit control assembly 2 and matching relationship is set to be described in detail.
Wherein, erection device assembly 1 generally comprises upper end spring base 10, upper end spring protecting sleeve 11, arcuation spring 12, lower end
Spring base 13, lower end spring protecting sleeve 14, control nut sliding sleeve 15 and slips sheath 16.Wherein, a termination of arcuation spring 12
It is bonded to upper end spring base 10, the other end is bonded to lower end spring base 13, and upper end spring protecting sleeve 11 surrounds upper end spring base 10 and leads to
It crosses connector (such as screw element) to be fixed to one another to limit between one end of arcuation spring 12, lower end spring protecting sleeve 14
Surround lower end spring base 13 and by other connector (for example, screw element identical with former connector or this field skill
Other available connectors that art personnel understand) it is fixed to one another to limit between the other end of arcuation spring 12.Control
Nut sliding sleeve 15 processed is relatively fixed by connector with lower end spring base 13.Slips sheath 16 is for example connected through a screw thread detachably
Ground is connected to control nut sliding sleeve 15.
It includes cam bit 20,20 sheath 21 of cam bit and controller perturbation connector 22 that cam bit, which controls assembly 2,.Controller perturbation
Connector 22 is radially provided with accommodation groove, and cam bit 20 accommodates wherein.Controller perturbation connector 22 is axially arranged with pin shaft screw 24,
Using pin shaft screw 24, cam bit 20 is partly caught in the accommodation groove of controller perturbation connector 22, and cam is additionally provided in accommodation groove
20 spring 23 of block, cam bit 20 abut 20 spring 23 of cam bit.When cam bit 20 is compressed by external force, cam bit 20 compresses
It 20 spring 23 of cam bit and is fully accommodated in accommodation groove, after releasing external force, cam bit 20 is by 20 spring 23 of cam bit
Protrude accommodation groove to restoring force effect partial.External force mentioned above is usually the cam by being set on controller perturbation connector 22
20 sheath 21 of block is applied.When 20 sheath 21 of cam bit is set on controller perturbation connector 22, cam bit 20 is limited in
In 20 sheath 21 of cam bit, it is forced into accommodation groove because of the radial constraint by 20 sheath 21 of cam bit；And in cam
After 20 sheath of block, 21 release cam block 20, effect and pin shaft screw 24 of the cam bit 20 by 20 spring 23 of cam bit are limited
And partly protrude controller perturbation connector 22.
Center pipe assembly 3 generally include top connection 30, upper connecting tube 31, circlip 32, locking nut 33, key 34, under connect
Pipe 35 and control nut 36.The internal screw thread that upper connecting tube 31 is arranged by its lower end inner surface is set with 35 upper end outer surface of lower linking tube
The installation of the two is realized in the external screw thread cooperation set, and 31 upper end of upper connecting tube is detachably connected with top connection 30, for example passes through screw thread
Connection.It is also arranged with circlip 32 on upper connecting tube 31, is connected on upper connecting tube 31, cooperating in setting tool 5 hereafter will be detailed
The packer 4 carefully described together downlink when, due to erection device assembly 1 arcuation spring 12 be close to 6 inner wall of casing and relative to
Casing 6 hinders erection device assembly 1 mobile, so circlip 32.Locking nut 33 also engages on upper connecting tube 31, phase
It is located at the lower end of upper connecting tube 31 for circlip 32.The design of the contact face of control nut 36 and locking nut 33 has spiral shell
Inclined-plane is revolved, after control nut 36 and locking nut 33 are tightened respectively, inclined-plane generates axial force, prevents the component being assembled together from existing
It is loosened in transport or movement, and the fastener due to using such rotary type, can be more advantageous to makes it when needed
Its corresponding component is smoothly detached from.The surface layout of lower linking tube 35 has key 34, the key 34 be used for lower linking tube 35 be arranged thereon
Controller perturbation connector 22 be socketed when matched with 34 slot of feather key longitudinally extended being arranged on the inside of controller perturbation connector 22.
Controller perturbation connector 22 is also fixed to lower linking tube 35 by its connector radially arranged.Control nut 36 is optionally set in
On upper connecting tube 31, the radial direction of control nut 36 is equipped with key 34.The key 34 is nested on upper connecting tube 31 in control nut sliding sleeve 15
When key 34 slot axially extending with control nut sliding sleeve 15 inside match, make in this way convenient for controlling nut sliding sleeve 15 by rotation
It controls nut 36 and engages upper connecting tube 31.
No matter component involved in above-mentioned ranges erection device assembly 1, center pipe assembly 3 or cam bit control assembly 2,
All it is merely for convenience description and classify.Certainly, above-mentioned classification is advantageously possible for assembling, or there are the possibility of pre-assembly
Property, but to those skilled in the art, related component is redistributed as needed different to meet
Assembly demand is obvious.
Above-mentioned erection device assembly 1, center pipe assembly 3 and cam bit control assembly 2 are assembled into setting tool 5 jointly, and
The specific assembling process of the setting tool 5 can refer to following exemplary illustration:
Cam bit 20 and spring are limited in the accommodation groove of controller perturbation connector 22 using pin shaft screw 24.Key 34 is pacified
In 34 slot of key of lower linking tube 35.Then controller perturbation connector 22 is nested on lower linking tube 35, due to controller perturbation connector
34 slot of feather key of 22 insides is matched with key 34 on lower linking tube 35, when it is set on lower linking tube 35,34 slot pair of feather key
Key 34 on quasi- lower linking tube 35 simultaneously moves down controller perturbation connector 22 along the guiding of the key 34.Again by 20 sheath 21 of cam bit
It is fitted into control nut sliding sleeve 15, since the top of control 15 bottom end of nut sliding sleeve and 20 sheath 21 of cam bit is respectively equipped with diameter
To flange, thus can be relatively moved between 20 sheath 21 of cam bit and control nut sliding sleeve 15 without departing from.Then, by the two
It is placed on controller perturbation connector 22 together, radial direction of the cam bit 20 on controller perturbation connector 22 by 20 sheath 21 of cam bit
It constrains and is forced into accommodation groove.Upper connecting tube 31 is connected to lower linking tube 35 again, the two is connected by screw thread.Upper connecting tube 31
On can be socketed the control nut 36 with key 34, control nut 36 passes through the edge of the key 34 arranged thereon and control nut sliding sleeve 15
Axially extending 34 slot of feather key is matched and is displaced downwardly between lower linking tube 35 and control nut sliding sleeve 15 along upper connecting tube 31, and
And it is also moved down in place in the case where the rotation of controller perturbation connector 22 drives, for example be displaced downwardly to and abut 20 sheath 21 of cam bit.Group is loaded onto
Spring base 10, upper end spring protecting sleeve 11, arcuation spring 12, lower end spring base 13 and lower end spring protecting sleeve 14 are held, shape will be assembled
At erection device be socketed on upper connecting tube 31 (for example being connected through a screw thread), then using connector by lower end spring base 13 with
Control nut sliding sleeve 15 is fixed to one another, and is not nested with before upper connecting tube 31 completely in erection device, by circlip 32 by helping
Inside the upper port merging erection device of equipment and it is nested with it in the radial slot on 31 surface of upper connecting tube.By slips
Sheath 16 is nested with thereon from the lower end of lower linking tube 35 and is removably engaged to control nut sliding sleeve 15.Again by 30 screw thread of top connection
It is connected to the upper end of upper connecting tube 31, so completes the assembly of setting tool 5.Herein in regard to setting tool 5 assemble sequence only
It is exemplary, those skilled in the art can use of the appropriate adjustment assemble sequence without influencing setting tool 5 according to demand.
Setting tool 5 mentioned above is only one exemplary embodiment of the present invention, well known in the prior art other
Setting tool 5 can also be used in the present invention and bore the cooperation of packer 4 with what is be discussed in detail below to make for being classified to recover the oil
Industry.
The packer 4 provided by the invention that bores includes upper slips 40, upper tapered sleeve 41, packing gum cover 42, lower slips 43, lower cone
Set 44, inner sleeve 45, check valve assembly 46, spring leaf 47 and non-return set 48.
Wherein, inner sleeve 45 is designed to have the hollow columnar of inner cavity, and inner cavity is in ladder shaft-like.It is successively socketed in inner sleeve 45
There are lower slips 43, lower tapered sleeve 44 and packer (packing gum cover 42).Wherein, lower slips 43 are processed to tubular and utilize wire cutting
12 slots (equal part lower slips 43) are produced on it, so that the slot point that lower slips 43 are formed when by radial force along wire cutting
At 12 valves.
Lower tapered sleeve 44 is positioned by being arranged in radial connector relative to inner sleeve 45.Being radially provided with for lower tapered sleeve 44 is fixed
Position hole, inner sleeve 45 are abutted by the location hole of lower tapered sleeve 44 to inner sleeve 45 in the radially arranged shrinkage pool of corresponding position, connector
Shrinkage pool, thus positioning inner sleeve 45 and lower tapered sleeve 44.In addition, inner sleeve 45 is connect between each other by key 34 to limit with lower tapered sleeve 44
Rotation between the two is without hindering axis between the two mobile.The upper end of lower tapered sleeve 44 and the lower end shape of packing gum cover 42
Adaptation.
Inner sleeve 45 is also arranged with tapered sleeve 41, and upper 41 internal screw thread of tapered sleeve connection non-return set 48, the inner wall of non-return set 48 is equipped with
Ratchet, inner sleeve 45 also are provided with ratchet on the outer surface at section (second ladder shaft part for corresponding roughly to inner cavity) wherein,
It is matched with the ratchet on non-return set 48.The lower end of upper tapered sleeve 41 and the upper end shape adaptation of packing gum cover 42.Upper tapered sleeve 41 with
Inner sleeve 45 is mutually positioning also by connector, and positioning method is substantially same or similar with lower tapered sleeve 44 and the cooperation of inner sleeve 45.
Upper slips 40 are arranged on tapered sleeve 41, and upper slips 40 are designed to be made of 4 valve slips pieces.Each slips piece
Inside rivets 47,4 spring leafs 47 of spring leaf for 4 valve slips piece assembly circlewise (from top view) respectively.On above-mentioned
Slips 40 can respectively dispense with spring leaf 47 transport before the use, and cooperate 5 in-site installation of setting tool in construction.
Check valve assembly 46 (specifically can be spring, such as cylindrical screw including valve body 460, spool 461, elastic component 462
Spring), seal plug 463 (such as glue stifled) and cover piece 464 (alternatively referred to as blocking).Inner sleeve 45 removably connects in its lower end
It is connected to valve body 460, for example is threadedly coupled, inner sleeve 45 has external screw thread, and the upper end of valve body 460 is formed with accommodating cavity, accommodating cavity tool
There are internal screw thread, the threaded engagement of inner sleeve 45 and valve body 460, so that part inner sleeve 45 is contained in valve body 460, thus inner sleeve 45
Inner cavity communicated with valve body 460.Valve body 460 is radially provided with location hole at it, and holding screw is inserted into can be into one in location hole
Step fastening valve body 460 and inner sleeve 45 loosen to avoid the two.The valve chamber 466 of valve body 460 is designed to ladder shaft-like, in addition
Valve chamber 466 is also connected with the cement slurry hole 465 that valve body 460 is radially arranged.Cement slurry hole 465 is blocked by glue with by valve body
460 valve chamber 466 is isolated with 460 external environment of valve body, to prevent packer 4 from entering silt during decentralization.Spool 461 is pacified
In valve chamber 466, spool 461 is typically constructed of metal and is sulfided into integral piece with rubber pad, and rubber pad (sealing element) is main
To enhance sealing effect when spool 461 seals valve chamber 466.Spool 461 towards the side of lower end there is stem (can claim at it
For valve rod), spring is set on the stem of spool 461.Valve body 460 is engaged in its lower end and is blocked with by spring and spool 461
It is limited in the valve chamber 466 of valve body 460, one end of spring abuts spool 461, and the other end of spring, which abuts, to be blocked.On valve body 460
It is also equipped with rubber ring (sealing ring 49), rubber ring is arranged on the valve body 460 between cement slurry hole 465 and location hole.Rubber
Ring is usually designed to gradual-enlargement type structure from top to bottom, i.e. the outer diameter of rubber ring becomes larger, and rubber ring is in wedge angle in its bottom
Shape, this during 4 downlink of packer primarily to can utilize the sundries such as silt, the crystal salt on its end scraping casing 6.
Certainly, rubber ring is also likely to be gradual-enlargement type structure from bottom to up.Rubber ring has the flange 490 extended radially inwardly, valve body
460 have the recess portion 467 that be adapted to the flange 490, in this way, rubber ring and valve body 460 pass through matching for flange 490 and recess portion 467
It closes and fits together.The structure of flange 490 and recess portion 467 can exchange on rubber ring and valve body 460 as needed.In addition,
Since the oil well of 4 operations of packer has certain inclined degree, rubber ring can also play during 4 downlink of packer
Centralizing function collides with to avoid packer 4.
In the present invention, using can be coated with screw thread glue everywhere in threaded connection.Herein in regard to the dress that can bore packer 4
Sequence ligand is merely exemplary, and those skilled in the art appropriate adjustment assemble sequence without influencing this can bore packing according to demand
Device 4 uses.
Setting tool 5 and packer 4 realize assembling according to mode described below.
Setting tool 5 as detailed above is assembled using in the inner sleeve 45 of its lower linking tube 35 insertion packer 4 with packer 4
Integrally.The controller perturbation connector 22 of setting tool 5 is threadedly coupled with inner sleeve 45, and controller perturbation connector 22 and inner sleeve 45 are also
Mutually positioning by radially arranged pin realization, the bottom end of lower linking tube 35, which abuts spool 461, simultaneously moves down spool 461 in turn
Compressed spring.Then, upper slips 40 mentioned above are assembled and are installed on tapered sleeve 41.Due to erection device assembly 1
In slips sheath 16 and control nut sliding sleeve 15 between using being threadedly coupled, so slips sheath 16 can by adjusting its with
The degree that nut sliding sleeve 15 engages is controlled, for example is engaged by part, slips sheath 16 is located on upper slips 40 to make
Slips 40 positions, but the ratchet part of upper slips 40 exceptionally reveals.Slips sheath 16 is using holding screw relative to control nut sliding sleeve
15 positioning, to prevent occurring loose shift therebetween.
It will be detailed below by above-mentioned setting tool 5 and can bore the working principle of packer 4:
For the convenience of description, the pipe fitting that top connection 30, upper connecting tube 31 and lower linking tube 35 are assembled into hereafter is known as central tube,
But it is related to then described separately when the independent function of all parts.The top connection 30 of the center pipe assembly 3 of setting tool 5 and pipe
The engagement of column 7 is to transfer the predetermined position into casing 6 with that can bore packer 4 for the setting tool being assembled integrally 5.Rotation pipe
Column 7 (such as more than the circle of dextrorotation 15), and then central tube rotation is driven, control nut 36 turns from initial position (referring to figure position A)
It moves to completely disengaging to engage (referring to figure position A ') and control nut 36 with upper connecting tube 31 and passes through the key 34 that is arranged thereon and control
34 slot of the key cooperation of nut sliding sleeve 15 processed axially screws out upwards.During tubing string 7 rotates upper connecting tube 31,20 sheath of cam bit
21 against nut 36 is controlled to prevent control 36 downlink of nut, and control nut sliding sleeve 15 is logical with 20 sheath 21 of cam bit due to it
It crosses radial flange to connect, so the limitation that 20 sheath 21 of cam bit is controlled nut sliding sleeve 15 also can not downlink.In control spiral shell
After mother 36 is disengaged with upper connecting tube 31, central tube being capable of downlink (than the such as from about downlink spatial of 78mm).Due to arcuation spring 12
With the rubbing action between casing 6, erection device is remained stationary.Then make central tube downlink (such as downlink 50mm), cam bit
Controller perturbation connector 22 is radially popped up in 20 constraints for being detached from 20 sheath 21 of cam bit, and upper slips 40 are detached from the pact of slips sheath 16
Beam is divided into 4 valves, and radially spreads apart in casing 6 under the action of spring leaf 47, and the ratchet of upper slips 40 sticks in casing 6
On wall.It above mentions central tube predetermined length (such as 44mm), upper tapered sleeve 41 contacts upper slips 40, then proceedes to mention central tube (about
44.8mm) until the shoulder being arranged on the inside of shoulder and controller perturbation connector 22 that central tube is radially arranged is against upper tapered sleeve 41
As central tube moves up, under the action of the radial component of upper tapered sleeve 41, in the ratchet insertion casing 6 on upper slips 40
Wall.It continues through upper lifting pipe post 7 and mentions central tube (about 30mm) come on, during central tube uplink, since upper slips 40 are embedded in
In casing 6, ratchet is stuck on casing 6 and upper slips 40 is hindered to continue with central tube uplink, upper slips 40 and then blocking epicone
41 uplinks are covered, then gum cover, lower tapered sleeve 44 are blocked continuation with central tube uplink, but the radial component of central tube uplink is made
With on lower slips 43 so that lower slips 43 along wire cutting at slot be broken into 12 valves, and the ratchet patch on lower slips 43
It leans against on 6 inner wall of casing.Then, continue to make central tube uplink, lifting power can refer to 135KN, and central tube is on moving valve 460
Row, under the action of valve body 460, lower slips 43 and lower 44 uplink of tapered sleeve, gum cover by upper slips 40 blocking can not uplink,
Thrust by lower slips 43 again at the same time, so gum cover is compressed so that radially expanding in casing 6, after expansion
Gum cover casing 6 is closed.A period of time (about 5 minutes), the power effect that lower slips 43 are expanded by gum cover, spine are mentioned in holding
Tooth is embedded in 6 inner wall of casing.Central tube is mentioned in repetition, so that the ratchet of lower slips 43 is more firmly embedded in casing 6.Then, make
Central tube downlink (Bottom Runby about 45mm), since the ratchet of lower slips 43 is embedded in casing 6, entire packer 4 is relative to casing 6
It is kept fixed, the central tube moved down abuts spool 461, compressed spring, so that spool 461 moves down conducting lower linking tube 35 and valve body
460 cement slurry hole 465.Description above in connection with distance is exemplary, and operator can use according to actual needs
In suitably adjusted, the structure and use of packer 4 and setting tool 5 that these distances are not intended to restrict the invention.
From well head grout injection 8 and rubber plug 9 is put into, applying hydraulic coupling makes rubber plug 9 along 7 downlink of tubing string, cement slurry 8
Packer 4 is forced into after central tube, stifled be pressurized of the glue on packer 4 falls off, and enables cement slurry 8 by cement slurry
Hole 465 enters in 6 space of casing of 4 lower section of packer.Upper lifting pipe post 7 simultaneously makes its rotation, twists off positioning inner sleeve 45 and elasticity is controlled
The copper threaded pin of connector 22 processed, and completely disengage controller perturbation connector 22 with the inner sleeve 45 of packer 4 and engage, central tube
Pressure no longer is applied to spool 461, spool 461 resets under the restoring force effect of spring, so that cement slurry hole 465 is closed,
The spool 461 is due to can more advantageously seal cement slurry hole 465 with rubber pad.Hereafter, by setting tool 5 from casing 6
Middle taking-up, packer 4 keep the state in closing cement slurry hole 465 to stay in casing 6.
Above-mentioned packer 4 is can be by the mud of 6 inner wall of casing with the rubber ring during central tube downlink, being arranged thereon
The sundries scraping such as sand, crystal salt is clean, so that avoiding these sundries from entering influences cam bit 20 and upper slips 40 in setting tool 5
Release, moreover, this also help upper slips 40, lower slips 43 ratchet smoothly and be effectively embedding in 6 inner wall of casing.
Moreover, clean 6 inner wall of casing is conducive to packing gum cover 42 and is preferably bonded casing 6 when packing gum cover 42 is squeezed and expands
Inner wall by 6 surface irregularities of casing without being influenced, to improve sealing performance of the packing gum cover 42 in casing 6.
In addition, 4 are provided in the above-described embodiments for blocking the closure in cement slurry hole 465 on valve body 460, certainly,
The quantity is illustrative, and not be it is restrictive, those skilled in the art can carry out adjusted design according to actual needs.Glue is stifled
Purposes mainly avoid 4 downlink of packer during, it is internal to enter the sundries such as silt, crystal salt, thus 4 energy of safeguards containment device
It enough sets in place.
Although only with limited amount embodiment the present invention is described in detail, it should be readily understood that, the present invention is not limited to
Disclosed such embodiment.On the contrary, can be by merging any amount of not heretofore described variation, change, substituting or wait
The present invention is modified with device, but this is suitable with the spirit and scope of the present invention.In addition, although it have been described that of the invention
Each difference embodiment, it will be understood that aspect of the invention can only include some in embodiment.Therefore, the present invention is not regarded
To be limited to the foregoing description, but it is limited only by the appended claims.
Reference signs list
1 erection device assembly 4 can bore packer
10 upper end spring base, 40 upper slips
Tapered sleeve on 11 upper end spring protecting sleeves 41
12 arcuation springs 42 insulate gum cover
13 lower end spring base, 43 lower slips
The lower tapered sleeve of 14 lower end spring protecting sleeves 44
15 control 45 inner sleeves of nut sliding sleeve
16 slips sheath, 46 check valve assembly
2 cam bits control 460 valve body of assembly
20 cam bit, 461 spool
21 cam bit sheath, 462 elastic component
22 controller perturbation connector, 463 seal plug
23 cam bit spring, 464 cover piece
24 pin shaft screw, 465 cement slurry hole
3 center pipe assembly, 47 spring leaf
30 top connection, 48 non-return set
31 upper connecting tube, 49 sealing ring
32 circlip, 5 setting tool
33 locking nut, 6 casing
34 key, 7 tubing string
35 lower linking tube, 8 cement slurry
36 control 9 rubber plugs of nut.
Claims (10)
1. one kind can bore packer (4) characterized by comprising
Inner sleeve (45), the inner sleeve (45) are configured to column；
Check valve assembly (46), the check valve assembly (46) are removably sheathed with the inner sleeve (45), the unidirectional valve group
Part (46) includes:
Valve body (460), the valve body (460) has valve chamber, accommodating cavity and radially distributed cement slurry hole (465), described
Accommodating cavity engages the inner sleeve (45)；
Spool (461), the spool (461) are contained in the valve chamber and extend in the side backwards to the inner sleeve (45)
Valve rod；
Cover piece (464), the cover piece (464) are releasably coupled the valve body (460) so that the spool (461) is limited in institute
It states in valve body (460)；
Elastic component (462), the elastic component (462) are nested on the valve rod, and one end of the elastic component (462) abuts
The other end of the spool (461), the elastic component (462) abuts the cover piece (464)；
The spool (461) is configured to compress the elastic component (462) when by external force so that the cement slurry is connected
Hole (465), and reset when external force disappears under the restoring force effect of the elastic component (462) to close the cement slurry hole
(465)。
2. according to claim 1 bore packer (4), which is characterized in that be also arranged with sealing on the valve body (460)
Ring (49), the sealing ring (49) are configured to have the outer diameter being gradually increased along the axial direction of the valve body (460).
3. according to claim 2 bore packer (4), which is characterized in that the sealing ring (49) is configured to from institute
State valve body (460) close to the inner sleeve (45) one end to the valve body (460) far from the inner sleeve (45) one end have by
Cumulative big outer diameter.
4. according to claim 2 bore packer (4), which is characterized in that the sealing ring (49) has radially-inwardly
The flange of extension, the valve body (460) have the recess portion being adapted to the flange, the sealing ring (49) and the valve body
(460) it is combined together by the cooperation of the flange and the recess portion.
5. according to claim 1 bore packer (4), which is characterized in that the check valve assembly (46) further includes close
Block head (463), the seal plug (463) engage the cement slurry hole (465) to seal the valve chamber.
6. according to claim 3 bore packer (4), which is characterized in that the packer (4) that bores further includes successively
Lower tapered sleeve (44), packer and the upper tapered sleeve (41) being socketed on the inner sleeve (45), the lower tapered sleeve (44) and it is described on
Tapered sleeve (41) is respectively conformal with the packer towards the side of the packer.
7. according to claim 3 bore packer (4), which is characterized in that the spool (461) is towards the inner sleeve
(45) one end is also arranged with sealing element, and the sealing element and the spool (461) are configured to one.
8. according to claim 6 bore packer (4), which is characterized in that the packer (4) that bores further includes upper card
Watt (40) and lower slips (43), the upper slips (40) are located on the upper tapered sleeve (41), and the lower slips (43) are located at described
On valve body (460), the upper slips (40) include multiple slips pieces and spring leaf corresponding with the quantity of the slips piece
(47), each spring leaf (47) is corresponding is bonded on each slips on piece, and multiple slips pieces utilize the spring
Piece (47) is assembled into ring-type.
9. a kind of setting tool (5), which is characterized in that the setting tool (5) includes lower linking tube (35), the lower linking tube (35)
It is configured to match and described of any of claims 1-8 bores packer.
10. setting tool (5) according to claim 9, which is characterized in that the lower linking tube (35) is plugged on the inner sleeve
(45) in, the lower linking tube (35) abuts the spool (461), the lower linking tube (35) towards one end of the valve body (460)
It is configured to transmit external force to the spool (461) so that the spool (461) blocks or discharge the cement slurry hole (465).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910525305.7A CN110145255B (en) | 2019-06-18 | 2019-06-18 | Drillable packer and setting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910525305.7A CN110145255B (en) | 2019-06-18 | 2019-06-18 | Drillable packer and setting tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110145255A true CN110145255A (en) | 2019-08-20 |
| CN110145255B CN110145255B (en) | 2024-04-23 |
Family
ID=67591810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910525305.7A Active CN110145255B (en) | 2019-06-18 | 2019-06-18 | Drillable packer and setting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110145255B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2559780Y (en) * | 2002-07-10 | 2003-07-09 | 大庆油田有限责任公司 | Isolation type unpacking valve control packer |
| CN203559862U (en) * | 2013-11-19 | 2014-04-23 | 四川川油天然气科技发展有限公司 | One-way sealing device for underground gas storage well shaft |
| CN203835327U (en) * | 2014-04-01 | 2014-09-17 | 四机赛瓦石油钻采设备有限公司 | Cement retainer |
| CN210289659U (en) * | 2019-06-18 | 2020-04-10 | 青岛鑫源晟石油科技有限公司 | Drillable packer and setting tool |
-
2019
- 2019-06-18 CN CN201910525305.7A patent/CN110145255B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2559780Y (en) * | 2002-07-10 | 2003-07-09 | 大庆油田有限责任公司 | Isolation type unpacking valve control packer |
| CN203559862U (en) * | 2013-11-19 | 2014-04-23 | 四川川油天然气科技发展有限公司 | One-way sealing device for underground gas storage well shaft |
| CN203835327U (en) * | 2014-04-01 | 2014-09-17 | 四机赛瓦石油钻采设备有限公司 | Cement retainer |
| CN210289659U (en) * | 2019-06-18 | 2020-04-10 | 青岛鑫源晟石油科技有限公司 | Drillable packer and setting tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110145255B (en) | 2024-04-23 |
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