CN201428420Y - Anti-scale packer - Google Patents
Anti-scale packer Download PDFInfo
- Publication number
- CN201428420Y CN201428420Y CN2009201002085U CN200920100208U CN201428420Y CN 201428420 Y CN201428420 Y CN 201428420Y CN 2009201002085 U CN2009201002085 U CN 2009201002085U CN 200920100208 U CN200920100208 U CN 200920100208U CN 201428420 Y CN201428420 Y CN 201428420Y
- Authority
- CN
- China
- Prior art keywords
- piston
- packer
- hole
- well
- central tube
- 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.)
- Expired - Fee Related
Links
- 239000012530 fluid Substances 0.000 claims abstract description 18
- 230000001050 lubricating effect Effects 0.000 claims abstract description 12
- 238000011010 flushing procedure Methods 0.000 claims description 26
- 238000012856 packing Methods 0.000 claims description 23
- 239000002775 capsule Substances 0.000 claims description 16
- 239000003921 oil Substances 0.000 abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 3
- 239000010721 machine oil Substances 0.000 abstract description 2
- 238000005406 washing Methods 0.000 abstract 6
- 239000000693 micelle Substances 0.000 abstract 4
- 210000002445 nipple Anatomy 0.000 abstract 2
- 238000007789 sealing Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002332 oil field water Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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- Actuator (AREA)
Abstract
The utility model discloses an anti-scale packer, which comprises an upper connector (1), a central tube (2), a well washing piston (3), a seat seal piston (3a), packer elements (4, 4a and 4b) and a lower connector (5), wherein a micelle (11) with lubricating fluid is installed between the upper connector (1) and the well washing piston (3), and is seated to a connecting nipple (12) fixed with thecentral tube (2), and a channel (13) communicated with the micelle (11) and a well washing piston cavity is formed in the middle of the connecting nipple (12). In the utility model, the micelle withlubricating fluid is installed between the upper connector and the well washing piston, the lubricating fluid in the micelle is used for squeezing the well washing piston to operate, and the well washing piston and contact parts thereof are only in contact with the lubricating fluid (machine oil) instead of water, thereby solving the problem that the packer is easy to scale during operation process when an oil field is water-injected in a layered manner, and not influencing the normal operation of the packer.
Description
One, technical field
The utility model relates to oil field well packer, specifically is a kind of antiscale packer.
Two, background technology
In the manufacturing process of separated-zone water infection oil field, packer is indispensable special equipment.Present oil field Water well packer, in the injecting process, water directly contacts with the water filling plunger shaft of packer, and behind the long-play, plunger shaft is interior to be understood fouling and causes piston not work, and causing the well-flushing passage not opened can't well-flushing.
Three, summary of the invention
Goal of the invention of the present utility model is to provide a kind of antiscale packer at the problems referred to above, is used to solve seperated layer water injection with the packer problem of fouling in the course of the work.
The technical scheme that above-mentioned purpose adopted is: a kind of antiscale packer by top connection, central tube, well-flushing piston, set piston, packing element, lower contact and constitute; Have through hole on the central tube, the cylinder sleeve of hydraulic cylinder, packing element stay pipe, set and have through hole on the internal gear; Through hole that has on through hole that has on the cylinder sleeve by the annular space of central tube and sleeve pipe, hydraulic cylinder and the packing element stay pipe and the annular space that sets the through hole, central tube and the packing element stay pipe that have on the internal gear constitute the well-flushing passage; The capsule of lubricating fluid is arranged in installing between top connection and the piston, and capsule is sat to be contained in central tube and is fixedly coupled on the silk, and the centre that connects silk has the passage that communicates with capsule, well-flushing plunger shaft.
Adopt the good effect of technique scheme: the antiscale packer is by there being the capsule of lubricating fluid in installing between top connection and well-flushing piston, with the extruding of the lubricating fluid in capsule well-flushing piston, carry out work, the only contact lubricated liquid in well-flushing piston and contact site thereof (machine oil) and do not contact water, solve the packer problem of easy fouling in the course of the work, do not influenced the operate as normal of packer again.
Four, description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1 top connection, 2 central tubes, 3 well-flushing pistons, 3a sets piston, and 4,4a, 4b packing element, 5 lower contacts, 6 through holes, 7 through holes, 8 through holes, 9 sleeve pipes, 10 packing element stay pipes, 11 capsules, 12 connect to silk 13 passages, 14 sealing rings.
Five, the specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is a structural representation of the present utility model, as shown in Figure 1, the utility model by top connection 1, central tube 2, well-flushing piston 3, set piston 3a, packing element 4,4a, 4b, lower contact 5 and constitute, top connection 1 connects oil pipe, lower contact 5 connects oil pipe or injection well downhole flow regulators.Have through hole on the central tube 2, have through hole 6 on the cylinder sleeve of hydraulic cylinder, the packing element stay pipe has through hole 7, sets and has through hole 8 on the internal gear.Constitute the well-flushing passage by the through hole 6 on the cylinder sleeve of the annular space of central tube 2 and sleeve pipe 9, hydraulic cylinder, the through hole 7 on the packing element stay pipe, through hole 8, the central tube 2 that sets on the internal gear with the annular space of packing element stay pipe 10.The capsule 11 that lubricating fluid is arranged in installing between top connection 1 and the well-flushing piston 3, capsule 11 sit be contained in the fixing binding of central tube 2 on the silk 12, connect having passage 13 in the middle of the silk 12, passage 13 communicates with capsule 11, well-flushing plunger shaft.
During work, water enters the hydraulic cavities that sets piston 3a from the through hole on the central tube 2, set piston 3a and upwards promote three packing elements 4 of spacer ring compression, 4a, 4b, three packing elements 4,4a, 4b expand and are squeezed on the inwall of sleeve pipe 9, set internal gear and set outer tooth ring and be stuck, the annular space of sealing oil pipe and sleeve pipe 9 is realized setting.
Because the pressure during water filling in the central tube 2 is greater than the pressure of oil pipe and sleeve pipe annular space, enter extruding capsule 11 from the central tube through hole, lubricating fluid is squeezed in the flushing fluid cylinder pressure in the capsule 11, promote well-flushing piston 3 downwards, its lower end sealing ring 14 contacts the annular space of sealing oil pipe and sleeve pipe 9 with the upper end extruding of packing element stay pipe 10, realize water filling.
Flushing fluid enters in the well from the annular space of oil pipe and sleeve pipe 9, because of the annular space pressure of oil pipe and sleeve pipe 9 greater than the pressure in the central tube 2, flushing fluid is from the annular space of oil pipe and sleeve pipe 9, through hole 7 on the cylinder sleeve of hydraulic cylinder enters, upwards promote well-flushing piston 3, well-flushing piston 3 pushes back lubricating fluid with lubricating fluid in the hydraulic cylinder and stores in the capsule 11, well-flushing piston 3a and packing element stay pipe 10 upper ends disengage, flushing fluid enters annular space between central tube 2 and the packing element stay pipe 10, walk around packing element 4,4a, the through hole 7 of 4b from the packing element stay pipe 10, the through hole 8 that sets on the internal gear flows out, flushing fluid is realized well-flushing by packer.
Upwards promote tubing string, when pulling force greater than 2.5 ton hours, packing element stay pipe 10 is cut off with the pin of ring gear tray chamber, packing element 11 disengages with sleeve pipe 9 inwalls by self elastic force withdrawal, realizes deblocking.
Lubricating fluid in the capsule 11 is specially lubrication oil.
Claims (1)
1, a kind of antiscale packer, this packer is by top connection (1), central tube (2), well-flushing piston (3), set piston (3a), packing element (4,4a, 4b), lower contact (5) constitutes, central tube has through hole on (2), have through hole (6) on the cylinder sleeve of hydraulic cylinder, have through hole (7) on the packing element stay pipe (10), set and have through hole (8) on the internal gear, by the annular space of central tube (2) with sleeve pipe (9), the through hole (7) that has on the through hole that has on the cylinder sleeve of hydraulic cylinder (6) and the packing element stay pipe and set the through hole (8) that has on the internal gear, central tube (2) constitutes the well-flushing passage with the annular space of packing element stay pipe (10); It is characterized in that: the capsule (11) that lubricating fluid is arranged in installing between top connection (1) and the piston (3), capsule (11) is sat to be contained in central tube (2) and is fixedly coupled on the silk (12), and the centre that connects silk (12) has the passage (13) that communicates with capsule (11), well-flushing plunger shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201002085U CN201428420Y (en) | 2009-06-18 | 2009-06-18 | Anti-scale packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201002085U CN201428420Y (en) | 2009-06-18 | 2009-06-18 | Anti-scale packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201428420Y true CN201428420Y (en) | 2010-03-24 |
Family
ID=42032155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201002085U Expired - Fee Related CN201428420Y (en) | 2009-06-18 | 2009-06-18 | Anti-scale packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201428420Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2558677A4 (en) * | 2010-04-12 | 2017-06-07 | Halliburton Energy Services, Inc. | Sequenced packing element system |
-
2009
- 2009-06-18 CN CN2009201002085U patent/CN201428420Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2558677A4 (en) * | 2010-04-12 | 2017-06-07 | Halliburton Energy Services, Inc. | Sequenced packing element system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100324 Termination date: 20100618 |