CN205778710U - A kind of packer - Google Patents

A kind of packer Download PDF

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Publication number
CN205778710U
CN205778710U CN201620520454.6U CN201620520454U CN205778710U CN 205778710 U CN205778710 U CN 205778710U CN 201620520454 U CN201620520454 U CN 201620520454U CN 205778710 U CN205778710 U CN 205778710U
Authority
CN
China
Prior art keywords
packing
central canal
overcoat
joint sleeve
piston
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.)
Active
Application number
CN201620520454.6U
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Chinese (zh)
Inventor
鲁延瑞
豆志权
郭开龙
宋修和
杨茹文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jinhu County Fulcrum Petroleum Science And Technology Co Ltd
Original Assignee
Jinhu County Fulcrum Petroleum Science And Technology Co Ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Jinhu County Fulcrum Petroleum Science And Technology Co Ltd filed Critical Jinhu County Fulcrum Petroleum Science And Technology Co Ltd
Priority to CN201620520454.6U priority Critical patent/CN205778710U/en
Application granted granted Critical
Publication of CN205778710U publication Critical patent/CN205778710U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of packer, comprising: top connection, central canal, limited cap, overcoat, piston, lock dog, hydraulic oil, upper joint sleeve, lock ring, upper support ring, one end and upper joint sleeve abutting contact and the outer packing element outside central canal, interior packing element and the lower joint sleeve of outer packing element other end abutting contact, the lower support ring being at least partially disposed between lower joint sleeve and central canal and the lower contact being connected with central canal bottom being coated with by outer packing element.In in this utility model, the face length of packing element and outer packing element is long, and the adaptation to pit shaft is very competent;There is the function of lossless anchoring string;During going into the well, prevent overcoat play, protection deblocking nail so that it is not by shearing force.

Description

A kind of packer
Technical field
This utility model relates to a kind of packer.
Background technology
In recent years, owing to continually developing of high benefit oil gas field and high-grade oil reservoir reduce day by day, countries in the world Rapidly increasing the demand of oil, exploration and development simultaneously and drilling technology level improve constantly, due to corrosion Etc. reason, damaging often occurs in oil reservoir upper sleeve.The exploitation in oil field of casing failure well strong influence. The well that conventional packer damages at set, set becomes, interlayer is thin sets success rate low, easily block during deblocking Boring, accident rate is high.
Utility model content
For above not enough, the purpose of this utility model is to provide a kind of packer.
The technical solution of the utility model is: a kind of packer, comprising: the top connection of built-in tubing round thread, Overcoat that the central canal being connected with top connection, the limited cap being loaded in top connection are connected with limited cap, it is loaded on Piston, the lock dog being loaded between piston and overcoat on central canal and inside overcoat, be loaded on by overcoat, Upper joint sleeve that hydraulic oil in the cavity that central canal, piston three surround is connected with overcoat, it is loaded on overcoat In and be close to the lock ring of upper joint sleeve, the upper support ring being at least partially disposed between upper joint sleeve and central canal, One end and upper joint sleeve abutting contact and the hose lining being positioned at the outer packing element outside central canal, being coated with by outer packing element Cylinder and the lower joint sleeve of outer packing element other end abutting contact, be at least partially disposed at lower joint sleeve and central canal it Between lower support ring and the lower contact that is connected with central canal bottom.
On the basis of technique scheme, farther include following attached technical scheme:
Described lock ring and piston are provided with the one-way lock tooth cooperated therewith, it is ensured that piston will not after putting in place It is reversed phenomenon.
Described upper joint sleeve, upper support ring, interior packing element, outer packing element, lower support ring and lower joint sleeve sulfur Turning to one, outer packing element hardness described in the hardness ratio of wherein said interior packing element is little, and interior packing element has the closeest Feng Xing, resistance to ag(e)ing and less permanent deformation;Outer packing element hardness is higher, can limit the outer rim chi of interior packing element Very little, prevent the undue tympanites of interior packing element, in protection, packing element is from damage;Described outer packing element outer rim circumferential direction sets There are several grooves, are conducive to the uniform expansion of outer packing element.
Described central canal has several inlet openings, and described outer is arranged with the some grooves coordinated with lock dog, Wherein said lock dog is placed in groove, and the step and limited cap by piston is spacing.
Described top connection is provided with step, limits the downward storke of limited cap, prevents interior packing element and outer packing element Overdistension.
Its also include connecting limited cap and top connection deblocking nail, be connected piston and top connection set nail, with And for the potted component sealed.
Described potted component is set on piston, and seals with inside central canal and overcoat respectively.
Due to the utilization of technique scheme, this utility model compared with prior art has the advantage that
1, the face length of interior packing element and outer packing element is long, and the adaptation to pit shaft is very competent;
2, there is the function of lossless anchoring string;
3, during going into the well, overcoat play, protection deblocking nail so that it is not by shearing force are prevented.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings and this utility model is further described by embodiment:
Fig. 1 is sectional view of the present utility model.
Detailed description of the invention
Embodiment: with reference to shown in Fig. 1, this utility model provides the specific embodiment of a kind of packer, its Including: central canal 14 that the top connection 1 of built-in tubing round thread is connected with top connection 1, it is loaded on top connection 1 On limited cap 2, connect limited cap 2 and top connection 2 unseal the overcoat that nail 3 is connected with limited cap 2 8, the piston 7 that is loaded on central canal 14, setting nail 5, being loaded on piston of piston 7 and top connection 1 is connected Lock dog 4 between 7 and overcoat 8, it is loaded on and is enclosed by overcoat 8, central canal 14, piston 7, upper support ring 13 On hydraulic oil 9 in the cavity become, blocking overcoat 8, hydraulic oil 9 enters plug 10 and the overcoat 8 of passage The upper joint sleeve 12 that connects, be loaded on overcoat 8 in and be close to the lock ring 11 of upper joint sleeve 12, at least part of position Upper support ring 13, one end and upper joint sleeve 12 abutting contact between upper joint sleeve 12 and central canal 14 And it is positioned at the outer packing element 15 outside central canal 14, the packing element 16 being coated with by outer packing element 15 and outer packing element The lower joint sleeve 18 of 15 other end abutting contact, be at least partially disposed at lower joint sleeve 18 and central canal 14 it Between the lower contact 19 that is connected with central canal 14 bottom of lower support ring 17 and for the sealing unit sealed Part 6.
Be machined with the one-way lock tooth cooperated therewith on lock ring 11 and piston 7 respectively, wherein lock ring 11 with One-way movement between piston 7, it is ensured that piston 7 will not be reversed phenomenon after putting in place.
Upper joint sleeve 12, upper support ring 13, interior packing element 16, outer packing element 15, lower support ring 17, lower company Female connector 18 all vulcanizes and is integrated.
Interior packing element 16 is different from outer packing element 15 hardness, and interior packing element 16 has better seal, ageing-resistant Property and less permanent deformation;Outer packing element 15 hardness is higher, can limit the physical dimension of interior packing element 16, anti- In the undue tympanites of packing element 16 in only, and protection, packing element 16 is from damage, outer packing element 15 outer rim circumferential direction It is provided with several grooves, is conducive to the uniform expansion of outer packing element 15.
The same depth of central canal 14 has several inlet openings.The same depth of overcoat 8 has some grooves, Coordinate with lock dog 4.Lock dog 4 is placed in overcoat 8 groove, spacing by piston 7 step and limited cap 2.By This is during this utility model is gone into the well, and prevents overcoat 8 play, protection deblocking nail 3 so that it is do not sheared Power.
Top connection 1 is provided with step, limits the downward storke of limited cap 2, prevents interior packing element 16 and outer The overdistension of packing element 15.
This utility model is connected on tubing string, under enter precalculated position.
Inject highly pressurised liquid from oil pipe, highly pressurised liquid by the inlet opening on central canal 14 enter piston 7 with Gap between top connection 1.Highly pressurised liquid acts on piston 7, and piston 7 is cut off after setting nail 5 descending, Lock dog 4 is released.The one-way lock tooth that piston 7 continues traveling downwardly to piston 7 engages with lock ring 11.With this Meanwhile, packing element 16 and central canal in hydraulic oil enters along the gap between central canal 14 and upper support ring 13 Gap between 14, hydraulic oil 9 acts on interior packing element 16, and interior packing element 16 drives outer packing element 15 footpath simultaneously To expansion, outer packing element 15 blocks the annular space between oil pipe and sleeve pipe.
Under press joint 1, deblocking nail 3 is cut off.On put on joint 1, top connection 1 drives central canal 14, And driving limited cap 2, overcoat 8, upper joint sleeve 12 etc. successively, whole instrument unseals.
Certainly above-described embodiment is only for illustrating technology of the present utility model design and feature, its object is to allow ripe The people knowing technique will appreciate that content of the present utility model and implements according to this, can not limit this reality with this With novel protection domain.All equivalence changes done according to the spirit of this utility model main technical schemes Change or modify, all should contain within protection domain of the present utility model.

Claims (7)

1. a packer, it is characterised in that comprising: the top connection of built-in tubing round thread and top connection Overcoat that the central canal connected, the limited cap that is loaded in top connection are connected with limited cap, it is loaded on central canal And piston, the lock dog being loaded between piston and overcoat inside overcoat, be loaded on by overcoat, central canal, Upper joint sleeve that hydraulic oil in the cavity that piston three surrounds is connected with overcoat, be loaded on overcoat in and be close to The lock ring of upper joint sleeve, the upper support ring being at least partially disposed between upper joint sleeve and central canal, one end are with upper Adapter sleeve abutting contact and be positioned at the outer packing element outside central canal, the packing element being coated with by outer packing element and outer glue The lower joint sleeve of cylinder other end abutting contact, the lower support that is at least partially disposed between lower joint sleeve and central canal Ring and the lower contact being connected with central canal bottom.
2. according to a kind of packer described in claim 1, it is characterised in that: described lock ring and piston It is provided with the one-way lock tooth cooperated therewith.
3. according to a kind of packer described in claim 1, it is characterised in that: described upper joint sleeve, Upper support ring, interior packing element, outer packing element, lower support ring and lower joint sleeve sulfuration are integrated, wherein said Described in the hardness ratio of interior packing element, outer packing element hardness is little.
4. according to a kind of packer described in claim 1, it is characterised in that: described central canal has Several inlet openings, and described outer it is arranged with the some grooves coordinated with lock dog, wherein said lock dog is placed in recessed In groove, and the step and limited cap by piston is spacing.
5. according to a kind of packer described in claim 1, it is characterised in that: set in described top connection There is step.
6. according to a kind of packer described in claim 1 or 2 or 3 or 4 or 5, it is characterised in that also Including connecting the deblocking nail of limited cap and top connection, being connected piston and follow closely and for close with setting of top connection The potted component of envelope.
7. according to a kind of packer described in claim 6, it is characterised in that: described potted component is sheathed On piston, and seal with inside central canal and overcoat respectively.
CN201620520454.6U 2016-05-31 2016-05-31 A kind of packer Active CN205778710U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620520454.6U CN205778710U (en) 2016-05-31 2016-05-31 A kind of packer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620520454.6U CN205778710U (en) 2016-05-31 2016-05-31 A kind of packer

Publications (1)

Publication Number Publication Date
CN205778710U true CN205778710U (en) 2016-12-07

Family

ID=58136608

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620520454.6U Active CN205778710U (en) 2016-05-31 2016-05-31 A kind of packer

Country Status (1)

Country Link
CN (1) CN205778710U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110043217A (en) * 2019-05-14 2019-07-23 淮安市井神钻采机具有限公司 A kind of more sealings are corrosion-resistant to look for leak stopping one production packer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110043217A (en) * 2019-05-14 2019-07-23 淮安市井神钻采机具有限公司 A kind of more sealings are corrosion-resistant to look for leak stopping one production packer
CN110043217B (en) * 2019-05-14 2021-03-05 淮安市井神钻采机具有限公司 Multi-seal corrosion-resistant finding and plugging integrated oil extraction packer

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