CN109882111A - The logical profit wedge-type sealer of anti-sticking anticreep - Google Patents
The logical profit wedge-type sealer of anti-sticking anticreep Download PDFInfo
- Publication number
- CN109882111A CN109882111A CN201910290201.2A CN201910290201A CN109882111A CN 109882111 A CN109882111 A CN 109882111A CN 201910290201 A CN201910290201 A CN 201910290201A CN 109882111 A CN109882111 A CN 109882111A
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- China
- Prior art keywords
- section
- wedge
- cone
- isometrical
- isometrical section
- 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
- 238000012856 packing Methods 0.000 claims abstract description 30
- 239000004677 Nylon Substances 0.000 claims description 32
- 229920001778 nylon Polymers 0.000 claims description 32
- 210000004907 gland Anatomy 0.000 claims description 29
- 230000000694 effects Effects 0.000 abstract description 4
- 238000011161 development Methods 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 10
- 238000007789 sealing Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007596 consolidation process Methods 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
- 238000001125 extrusion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Abstract
The present invention provides a kind of logical profit wedge-type sealers of anti-sticking anticreep, are related to oil field development technical field of oil extraction equipment, solve cone uplink existing in the prior art and squeeze the technical issues of annular wedged seal makes it be bonded tension with the borehole wall.Cone is provided with the first tapered section and first isometrical section, ring packing, which wedges, is equipped with the second tapered section and second isometrical section, when cone uplink, ring packing wedge is bonded with the borehole wall to be remain stationary, isometrical section of the first of cone is slided relative to isometrical section of second inside ring packing wedge of cavity wall, because second isometrical section of diameter is not less than first isometrical section of diameter, and first isometrical section of length is greater than second isometrical section, therefore only first isometrical section contacted when cone uplink with second isometrical section, the first tapered section that surface is obliquely installed will not be contacted with second isometrical section, the effect for squeezing annular wedged seal will not be generated, it avoids ring packing wedge and is bonded tension with wellbore casing and ultimately causes stuck situation and occur.
Description
Technical field
The present invention relates to oil field development technical field of oil extraction equipment, more particularly, to a kind of logical profit wedge-type sealing of anti-sticking anticreep
Device.
Background technique
Applicant once submitted the patent Shen application No. is the CN201510752598.4 applying date on November 4th, 2015
Please, this application disclose a kind of " wedge-type sealers ", but submitted on April 26th, 2017 application No. is
The patent application of ZL201720448591.8, this application disclose a kind of " from profit run-resistant wedge-type sealer and its thread-off proof ring-shaped
Wedged seal " is tested by laboratory and mining site oil well, when still often going into the well wedged seal be stuck, nylon cylinder and flexible
Prevent being disengaged from the groove insertion flexible gland in sealing shroud disengaging and nylon cylinder, sting the case where rotten flexible gland inner wall.It traces it to its cause
Be sealer is sent with tubing string go into the well during, cone uplink, which squeezes annular wedged seal, when the upper lifting pipe post that makes up a joint makes itself and well
Wall fitting is tighter, and when having connect single downlink, the weight of tubing string is just stuck when can't push sealer downlink.Even if lattice
Careful outside to send sealer to underground predetermined position, the probability that can not beat pressure is also very big, the reason is that flexibility made of rubber
Sealing shroud to the powerful adsorption capacity of cone make ring packing wedge cone residue 1/3 do not hold oil groove section can not downlink, thus
Pressure can not be beaten, sealing failure is ultimately caused.
Summary of the invention
It is existing in the prior art to solve the purpose of the present invention is to provide a kind of logical profit wedge-type sealer of anti-sticking anticreep
Cone uplink squeezes the technical issues of annular wedged seal makes it be bonded tension with the borehole wall.In many technical solutions provided by the invention
The many technical effects that can be generated of optimal technical scheme (be not easy repeatedly, cost is relatively low, easy to use) elaboration as detailed below.
To achieve the above object, the present invention provides following technical schemes:
The logical profit wedge-type sealer of a kind of anti-sticking anticreep provided by the invention, including cone and the ring being set in the cone
Shape wedged seal, the cone include the first tapered section and are fixedly connected on first isometrical section of first tapered section upper end；Institute
State second isometrical section being provided with the second tapered section on ring packing wedge He being fixedly connected on second tapered section upper end；It is described
Second isometrical section of length is less than described first isometrical section, and second isometrical section of the diameter is not less than described first isometrical section
Diameter.
Preferably, the ring packing wedge includes flexible gland and nylon cylinder, and the flexible gland is set in described
In cone, the nylon cylinder is set in the flexible sealing and puts on, and the inner wall of the flexible gland is provided with second cone
Spend section and second isometrical section described.
Preferably, the upper end of the outer wall of the flexible gland is provided with seal cap, and the lower part of the seal cap is provided with
Anti-decylization, offer on the inner wall of the nylon cylinder it is anti-be disengaged from the groove, anti-be disengaged from the groove is intermeshed with the anti-decylization so that described
Nylon cylinder is set in the flexible sealing and puts on.
Preferably, interference ring is provided at the top of the seal cap.
Preferably, appearance oil groove is offered in the cone.
Preferably, the diameter of the interference ring is greater than the diameter of casing.
Preferably, the length of the cone is greater than the length of the ring packing wedge.
Preferably, the diameter of the upper end of first tapered section is less than the diameter of the lower end of first tapered section.
Preferably, the diameter of the upper end of second tapered section is less than the diameter of the lower end of second tapered section.
Preferably, axially disposed on the outer wall of the nylon cylinder to have a plurality of gap.
The present invention is provided with second on ring packing wedge by being provided with the first tapered section and first isometrical section in cone
Tapered section and second isometrical section, tubing string, which send sealer, goes into the well and in the process of upper lifting pipe post that makes up a joint, cone in uplink,
Ring packing wedge contacts to remain stationary with wellbore casing, and isometrical section of first be arranged in cone relative to setting in annular
Second isometrical section of cavity wall sliding inside wedged seal, because second isometrical section of diameter is not less than first isometrical section of diameter, and
First isometrical section of length is greater than second isometrical section, therefore what is contacted when cone uplink with second isometrical section only has first isometrical section,
The first tapered section that surface is obliquely installed will not be contacted with second isometrical section, will not be generated the effect for squeezing annular wedged seal, be kept away
Exempt from ring packing wedge and be bonded tension with borehole wall casing and ultimately cause stuck situation to occur.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is: the structure chart of cone provided in an embodiment of the present invention；
Fig. 2 is: the structure chart of flexible gland provided in an embodiment of the present invention；
Fig. 3 is: the structure chart of nylon cylinder provided in an embodiment of the present invention；
Fig. 4 is: the structure chart of ring packing wedge provided in an embodiment of the present invention；
Fig. 5 is: structure chart when wedge-type sealer downlink provided in an embodiment of the present invention；
Fig. 6 is: structure chart when cone uplink provided in an embodiment of the present invention.
1, cone in figure；11, the first tapered section；12, first isometrical section；2, ring packing wedge；21, flexible gland；
211, the second tapered section；212, second isometrical section；213, anti-decylization；214, seal cap；215, interference ring；22, nylon cylinder；221,
It is anti-to be disengaged from the groove.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
In the description of the present invention, it is to be understood that, term " center ", " lateral ", " length ", " width ", " height ",
The instructions such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " side "
Orientation or positional relationship is to be merely for convenience of the description present invention based on attached orientation or positional relationship shown in FIG. 1 and simplification is retouched
It states, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.
Referring to figs. 1 to Fig. 6, the present invention provides a kind of logical profit wedge-type sealer of anti-sticking anticreep, including cone 1 and it is set in
Ring packing wedge 2 in cone 1, cone 1 include the first tapered section 11 and are fixedly connected on the first of 11 upper end of the first tapered section
Isometrical section 12；It is provided with the second tapered section 211 on ring packing wedge 2 and is fixedly connected on the second of 211 upper end of the second tapered section
Isometrical section 212；For second isometrical section 212 of length less than first isometrical section 12, second isometrical section 212 of diameter is not less than first etc.
The diameter of diameter section 12.
The present invention is arranged on ring packing wedge 2 by being provided with the first tapered section 11 and first isometrical section 12 in cone 1
There are the second tapered section 211 and second isometrical a section 212, tubing string, which send sealer, goes into the well and in the process of upper lifting pipe post that makes up a joint,
In uplink, ring packing wedge 2 contacts to remain stationary with wellbore casing cone 1, and isometrical section of first be arranged in cone 1
12 relative to second isometrical section 212 of the cavity wall sliding being arranged in inside ring packing wedge 2, because of second isometrical section 212 of diameter
Diameter not less than first isometrical section 12, and first isometrical section 12 of length is greater than second isometrical section 212, therefore when 1 uplink of cone
With second isometrical section 212 only first isometrical section 12 contacted, the first tapered section 11 that surface is obliquely installed will not be with second etc.
Diameter section 212 contacts, and will not generate the effect for squeezing annular wedged seal 2, avoid ring packing wedge 2 with borehole wall casing and be bonded tension
Stuck situation is ultimately caused to occur.
Optionally embodiment, ring packing wedge 2 include flexible gland 21 and nylon cylinder 22, flexible gland 21
It being set in cone 1, the length of cone 1 is greater than the length of ring packing wedge 2, and nylon cylinder 22 is set on flexible gland 21,
The inner wall of flexible gland 21 is provided with the second tapered section 211 and second isometrical section 212.
The second tapered section 211 is machined on the inner wall of flexible gland 21, the lower part of the second tapered section 211 is second isometrical
Section 212, second isometrical section 212 of diameter are not less than first isometrical section 12 of diameter, and second isometrical section 212 of length is less than first
Isometrical section 12, preferably 30 millimeters, the diameter of the upper end of the second tapered section 211 less than the lower end of the second tapered section 211 diameter,
To show the small shape in the big upper end in lower end, preferably cooperate the use of cone 1；Nylon cylinder 22 is mainly made of nylon material,
Nylon material have certain hardness, elasticity, will not be plastically deformed in certain field of load, the outer diameter of nylon cylinder 22 with
Casing is identical, and the outer diameter of the internal diameter and flexible gland 21 of nylon cylinder 22 matches, specially the small shape in the big upper end in lower end.
Optionally embodiment offers appearance oil groove in cone 1.
Offer appearance oil groove on the outer surface of cone 1, and after holding and filling lubricating oil or lubricant in oil groove, it can
It plays cone 1 and can reduce or eliminate flexible gland 21 to cone 1 in the case where moistening state without other liquid from the function of profit
Adsorption capacity, keep downlink of the flexible gland 21 in cone 1 more smooth, show Seal Oil collar-shaped with casing more wedge more consolidation
The purpose in space.
Optionally embodiment, the upper end of the outer wall of flexible gland 21 are provided with seal cap 214, seal cap 214
Lower part be provided with anti-decylization 213, when being set on flexible gland 21 for 22 sets of nylon cylinder, the upper end of the outer wall of nylon cylinder 22 is pushed up
It is offered on the lower end of seal cap 214, the inner wall of nylon cylinder 22 and prevents being disengaged from the groove 221, it is anti-to be disengaged from the groove 221 with anti-decylization 213 in size
Match on position, the width and depth of groove body and ring body are consistent, finally to prevent being disengaged from the groove 221 with anti-decylization 213 mutually
Engagement forms complete engaging structure, the ring packing wedge 2 of composition as shown in the figure 4, this design form improve nylon cylinder with
The type of attachment of flexible gland improves the stability of structure, avoids nylon cylinder and flexible gland from being detached from, avoids existing
Anti- be disengaged from the groove in technology in nylon cylinder can be embedded in flexible gland, sting the generation of the case where rotten flexible gland.
Optionally embodiment, interference ring 215 is provided at the top of seal cap, and anti-decylization 213 is arranged in seal cap
214 lower part, the diameter of interference ring 215 are greater than the diameter of casing.
Ring packing wedge 2 is set in cone 1, is combined under the wedge-type sealer of formation to behind designated position in well, casing
It suppresses and pushes ring packing wedge downlink, the diameter of Seal Oil, collar-shaped space, setting interference ring 215 is greater than the diameter of casing, because
Making material for flexible gland is mainly rubber, has the characteristics that oil resistant, high temperature resistant, impact-resistant, can lead to when going into the well
It crosses its good flexibility to squeeze into wellbore casing, so that fitting closely between ring packing wedge 2 and the inner wall of casing, preferably
Design scheme is that the diameter of interference ring 215 is greater than 2 millimeters of casing diameter.
The diameter of optionally embodiment, the upper end of the first tapered section 11 is straight less than the lower end of the first tapered section 11
Diameter shows big top and small bottom shape, the diameter of the upper end of the first tapered section 11 is equal to first isometrical section 12 of diameter,
That is the entirety of cone 1 is integrally formed design, the first tapered section 11 and first isometrical section 12 of coupling part as nature transition, keeps away
Exempt from occur the problem of corner angle damage the structure for the ring packing wedge 2 being set in cone 1 in structure.
Optionally embodiment, axially disposed on the outer wall of nylon cylinder 22 to have a plurality of gap, nylon cylinder receives outer
When portion's pressure extrusion, gap can be reduced by compressing so that the perimeter for the circumference that the outer wall of nylon cylinder 22 forms becomes smaller, and perimeter becomes
It is small to alleviate nylon cylinder 22 and external extruding situation, pressure is reduced, is played a protective role to nylon cylinder 22.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of logical profit wedge-type sealer of anti-sticking anticreep, which is characterized in that including cone (1) and be set on the cone (1)
Ring packing wedge (2), in which:
The cone (1) includes the first tapered section (11) and is fixedly connected on the first isometrical of the first tapered section (11) upper end
Section (12)；
It is provided with the second tapered section (211) on the ring packing wedge (2) and is fixedly connected on second tapered section (211)
Second isometrical section (212) at end；
The length of second isometrical section (212) is less than described first isometrical section (12), the diameter of second isometrical section (212)
Not less than the diameter of described first isometrical section (12).
2. the logical profit wedge-type sealer of anti-sticking anticreep according to claim 1, it is characterised in that: the ring packing wedge (2)
Including flexible gland (21) and nylon cylinder (22), the flexible gland (21) is set on the cone (1), the nylon
Cylinder (22) is set on the flexible gland (21), and the inner wall of the flexible gland (21) is provided with second tapered section
(211) and it is described second isometrical section (212).
3. the logical profit wedge-type sealer of anti-sticking anticreep according to claim 2, it is characterised in that: the flexible gland (21)
The upper end of outer wall be provided with seal cap (214), the lower part of the seal cap (214) is provided with anti-decylization (213), the nylon
Offered on the inner wall of cylinder (22) it is anti-be disengaged from the groove (221), it is described it is anti-be disengaged from the groove (221) and the anti-decylization (213) be intermeshed so that
The nylon cylinder (22) is set on the flexible gland (21).
4. the logical profit wedge-type sealer of anti-sticking anticreep according to claim 3, it is characterised in that: the seal cap (214)
Top is provided with interference ring (215).
5. the logical profit wedge-type sealer of anti-sticking anticreep according to claim 1, it is characterised in that: opened up on the cone (1)
There is appearance oil groove.
6. the logical profit wedge-type sealer of anti-sticking anticreep according to claim 4, it is characterised in that: the interference ring (215)
Diameter is greater than the diameter of casing.
7. the logical profit wedge-type sealer of anti-sticking anticreep according to claim 1, it is characterised in that: the length of the cone (1)
Greater than the length of the ring packing wedge (2).
8. the logical profit wedge-type sealer of anti-sticking anticreep according to claim 1, it is characterised in that: first tapered section (11)
Upper end diameter be less than first tapered section (11) lower end diameter.
9. the logical profit wedge-type sealer of anti-sticking anticreep according to claim 1, it is characterised in that: second tapered section
(211) diameter of upper end is less than the diameter of the lower end of second tapered section (211).
10. the logical profit wedge-type sealer of anti-sticking anticreep according to claim 2, it is characterised in that: the nylon cylinder (22)
It is axially disposed on outer wall to have a plurality of gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910290201.2A CN109882111B (en) | 2019-04-11 | Anti-blocking anti-falling through lubrication wedge type sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910290201.2A CN109882111B (en) | 2019-04-11 | Anti-blocking anti-falling through lubrication wedge type sealer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109882111A true CN109882111A (en) | 2019-06-14 |
| CN109882111B CN109882111B (en) | 2024-04-12 |
Family
ID=
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115874970A (en) * | 2023-03-08 | 2023-03-31 | 天津市益彰石油科技发展有限公司 | Bidirectional pressure-bearing wedge type sealer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115874970A (en) * | 2023-03-08 | 2023-03-31 | 天津市益彰石油科技发展有限公司 | Bidirectional pressure-bearing wedge type sealer |
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