CN206000509U - Corrosion-resistant packer - Google Patents
Corrosion-resistant packer Download PDFInfo
- Publication number
- CN206000509U CN206000509U CN201620793068.4U CN201620793068U CN206000509U CN 206000509 U CN206000509 U CN 206000509U CN 201620793068 U CN201620793068 U CN 201620793068U CN 206000509 U CN206000509 U CN 206000509U
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- China
- Prior art keywords
- piston
- corrosion
- central tube
- packer
- millimeters thick
- 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.)
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
A kind of corrosion-resistant packer.Existing packer poor corrosion resistance, service life short problem are mainly solved.It is characterized in that：Central tube (1), upper piston set (2), pressure transmission piston (3), well-flushing piston (4), fixed piston (5), set on piston (6) and exterior central tube (7) surface and have 0.8-1.2 millimeters thick nickel base alloy layer, there is 0.6-0.9 millimeters thick metal-cermic coating on top connection (8), lower contact (9), seating nipple (10), spacer ring (11) surface.The corrosion-resistant packer has corrosion resistance and good, the feature of long service life.
Description
Technical field
The utility model is related to the instrument used by field of oil field oil extraction down-hole, especially corrosion-resistant packer.
Background technology
In field of oil field oil extraction, packer is the important downhole tool of oil extraction in oil field.By the separation water filling layer of packer.
And existing packer has poor corrosion resistance due to reasons in structure, the short problem of service life, so as to shorten equipment high efficiency fortune
Line period, finally increases workover cost.
Content of the invention
In order to solve existing packer poor corrosion resistance, the short problem of service life.The utility model provides a kind of resistance to
Corrosion packer.The corrosion-resistant packer has corrosion resistance and good, the feature of long service life.
The technical solution of the utility model is：The corrosion-resistant packer includes central tube, upper piston set, pressure transmission piston, washes
Well piston, fixed piston, set piston, exterior central tube, top connection, lower contact, seating nipple and spacer ring.Central tube, upper piston set,
Pressure transmission piston, well-flushing piston, fixed piston, set on piston and exterior central tube surface and have 0.8-1.2 millimeters thick nickel-base alloy
Layer, there is 0.6-0.9 millimeters thick metal-cermic coating on top connection, lower contact, seating nipple, spacer ring surface.
The utility model has the advantages that：The corrosion-resistant packer is due to adopting central tube, upper piston set, pressure transmission
Piston, well-flushing piston, fixed piston, set on piston and exterior central tube surface and have 0.8-1.2 millimeters thick nickel base alloy layer, on
Joint, lower contact, seating nipple, spacer ring surface have the structure of 0.6-0.9 millimeters thick metal-cermic coating.Using nickel base alloy layer
With the characteristic of metal-cermic coating, improve central tube, upper piston set, pressure transmission piston, well-flushing piston, fixed piston, set piston,
The wear-resisting and anticorrosion effect of exterior central tube, top connection, lower contact, seating nipple and spacer ring, so as to improve decay resistance, prolongation makes
With the life-span, and simple structure.Thus the corrosion-resistant packer has corrosion resistance and good, the feature of long service life.
Description of the drawings：
Accompanying drawing 1 is the utility model structural representation.
In figure 1- central tube, 2- upper piston set, 3- pressure transmission piston, 4- well-flushing piston, 5- fixed piston, 6- set piston,
7- exterior central tube, 8- top connection, 9- lower contact, 10- seating nipple, 11- spacer ring.
Specific embodiment：
The utility model is described in further detail below in conjunction with the accompanying drawings：
Shown in accompanying drawing, the corrosion-resistant packer includes central tube 1, upper piston set 2, pressure transmission piston 3, well-flushing piston 4, consolidates
Fixed piston 5, set piston 6, exterior central tube 7, top connection 8, lower contact 9, seating nipple 10 and spacer ring 11.Using laser melting and coating technique
By corrosion resistant nickel-bass alloy material cladding, heart pipe 1, upper piston covers 2, pressure transmission piston 3, well-flushing piston 4, fixed piston wherein
5th, set on piston 6 and 7 surface of exterior central tube, nickel base alloy layer thickness is 0.8-1.2 millimeter, strengthens its decay resistance, carries
High mutual cooperation measure of precision.On top connection 8, lower contact 9, seating nipple 10 and 11 surface of spacer ring using supersonic spray coating gold
Category ceramic coating, metal-cermic coating thickness are 0.6-0.9 millimeters thick, improve packer intensity, extend the use longevity of packer
Life, improve production efficiency, cost-effective.The 0.8-1.2 millimeters thick nickel base alloy layer of the corrosion-resistant packer and 0.6-0.9 milli
The thick metal-cermic coating of rice can both repair the parts of wear out failure, improve the usage cycles of part again.Save material
Cost and the cost of overhaul are used.While improve equipment operating efficiency.The 0.8-1.2 millimeters thick nickel-base alloy of the corrosion-resistant packer
Layer and 0.6-0.9 millimeters thick metal-cermic coating improve wear-resistant, anticorrosive, the resistance to cavitation performance of the corrosion-resistant packer part,
Reduce surface roughness, so as to the extension device Effec-tive Function cycle, finally reduce workover cost.
The corrosion-resistant packer improves the precision that gap coordinates between relative movement part.Packer is improve in well
Decay resistance in lower operation process, increases the service life.The duty cycle of oil exploitation is extended, improves the production of oil recovery
Efficiency, reduces production cost and later stage cost of labor.
Claims (1)
1. a kind of corrosion-resistant packer, including central tube (1), upper piston set (2), pressure transmission piston (3), well-flushing piston (4), fixes
Piston (5), piston (6), exterior central tube (7), top connection (8), lower contact (9), seating nipple (10) and spacer ring (11) is set, which is special
Levy and be：Central tube (1), upper piston set (2), pressure transmission piston (3), well-flushing piston (4), fixed piston (5), set piston (6)
And have 0.8-1.2 millimeters thick nickel base alloy layer on exterior central tube (7) surface, top connection (8), lower contact (9), seating nipple (10),
There is 0.6-0.9 millimeters thick metal-cermic coating on spacer ring (11) surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620793068.4U CN206000509U (en) | 2016-07-27 | 2016-07-27 | Corrosion-resistant packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620793068.4U CN206000509U (en) | 2016-07-27 | 2016-07-27 | Corrosion-resistant packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206000509U true CN206000509U (en) | 2017-03-08 |
Family
ID=58202053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620793068.4U Active CN206000509U (en) | 2016-07-27 | 2016-07-27 | Corrosion-resistant packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206000509U (en) |
-
2016
- 2016-07-27 CN CN201620793068.4U patent/CN206000509U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 163000 Heilongjiang city of Daqing province science and Technology Park Ranghulu District No. 5 new road Patentee after: Daqing Sea Technology Co. Ltd. Address before: 163000 Heilongjiang city of Daqing province science and Technology Park Ranghulu District No. 5 new road Patentee before: Daqing Offshore Oil Technology Development Co., Ltd. |