CN109138902A - A kind of combined type packer under high temperature and high pressure condition - Google Patents
A kind of combined type packer under high temperature and high pressure condition Download PDFInfo
- Publication number
- CN109138902A CN109138902A CN201811171415.XA CN201811171415A CN109138902A CN 109138902 A CN109138902 A CN 109138902A CN 201811171415 A CN201811171415 A CN 201811171415A CN 109138902 A CN109138902 A CN 109138902A
- Authority
- CN
- China
- Prior art keywords
- central tube
- sealing drum
- cylinder
- packing element
- combined type
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 50
- 238000012856 packing Methods 0.000 claims abstract description 24
- 239000012530 fluid Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000004058 oil shale Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000926 separation method 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/126—Packers; Plugs with fluid-pressure-operated elastic cup or skirt
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Sealing Devices (AREA)
Abstract
The invention discloses a kind of combined type packers under high temperature and high pressure condition; including packing element, sealing drum, central tube, sleeve, main cylinder and secondary cylinder; the packing element, sealing drum, central tube and sleeve are column; the sealing drum is located between packing element and central tube; the central tube is located between sealing drum and sleeve; fixed bonding has chip shield in the sealing drum, and the central tube is equipped with air valve.This is for the combined type packer under high temperature and high pressure condition, by being provided with chip shield in sealing drum, so that hardly having air circulation in gap between packing element and central tube, ensure that leakproofness.
Description
Technical field
The invention belongs to combined type packer technology fields, and in particular to a kind of combined type under high temperature and high pressure condition
Packer.
Background technique
Oil shale in-situ cracking heat injection production practice needs to heat oil shale layer, to prevent fluid in heat injection well
The self-loopa for forming cold fluid and hot fluid, needs the wellbore by heat injection well to be separated with packer.
Existing packer there is problems: 1, not being able to satisfy and run steadily in the long term under high temperature and high pressure condition mostly
Requirement；2, the leakproofness between packing element and central tube is poor, and the two junction is easy to happen air circulation；3, without protection dress
It sets, may have an accident when central tube air pressure inside is excessively high；4, the maintenance of central tube is more troublesome.
Summary of the invention
The purpose of the present invention is to provide a kind of combined type packers under high temperature and high pressure condition, to solve above-mentioned back
The problem of being proposed in scape technology.
To achieve the above object, the invention provides the following technical scheme: a kind of combined type under high temperature and high pressure condition
Packer, including packing element, sealing drum, central tube, sleeve, main cylinder and secondary cylinder, the packing element, sealing drum, central tube and set
Cylinder is column, and the sealing drum is located between packing element and central tube, and the central tube is located between sealing drum and sleeve, described
Fixed bonding has chip shield in sealing drum, and the central tube is equipped with air valve.
Preferably, the sectional elevation of the chip shield is annular shape, and the outer diameter of the packing element is equal to the internal diameter of sealing drum,
The outer diameter of the sealing drum is equal to the internal diameter of central tube.
Preferably, the mode that the packing element and sealing drum, sealing drum and central tube are connected through a screw thread is fixed, the gas
Valve is fixedly welded on the lateral wall of central tube, and the inner cavity of the central tube is communicated with air valve, the side wall and central tube of the sleeve
Side wall far from sealing drum side is fixedly welded.
Preferably, the main cylinder and secondary cylinder are set in outside central tube, the entirety that the main cylinder and secondary cylinder are constituted
In a rectangular parallelepiped shape, it is circular cavity that the whole interior that the main cylinder and secondary cylinder are constituted, which is provided with section, the main cylinder and
The sectional elevation of secondary cylinder is " C " font.
Preferably, the main cylinder is fixedly welded with clamping block close to the both ends of secondary cylinder, the clamping block it is vertical
Section is U shape, and the pair cylinder is provided with card slot, the clamping block and card slot engaging close to the both ends of main cylinder.
Technical effect and advantage of the invention: this is used for the combined type packer under high temperature and high pressure condition, by sealing
It is provided with chip shield in cylinder, so that hardly having air circulation in the gap between packing element and central tube, ensure that sealing
Property, by being provided with air valve on central tube side wall, when so that central tube air pressure inside is excessive, gas can break through air valve and discharge
Out, it prevents that central tube air pressure inside is excessively high and the perils such as explosion is caused to occur, by being arranged master on the outside of central tube
Cylinder and secondary cylinder, slow down central tube and extraneous heat exchange significantly, so that central tube can resist extraneous ring
The high temperature and pressure in border, by being provided with clamping block on main cylinder, having opened card slot on secondary cylinder, so that main cylinder and secondary cylinder
Between separation very simple, central tube is repaired thus convenient.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the structural schematic diagram of main cylinder and secondary cylinder of the invention；
Fig. 3 is schematic enlarged-scale view at the A in Fig. 2 of the invention.
In figure: 1 packing element, 2 sealing drums, 21 chip shields, 3 central tubes, 31 air valves, 4 sleeves, 51 main cylinders, 511 clampings
Block, 52 secondary cylinders, 521 card slots.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of combined type packers under high temperature and high pressure condition as shown in Figs. 1-3, including glue
Cylinder 1, sealing drum 2, central tube 3, sleeve 4, main cylinder 51 and secondary cylinder 52, the packing element 1, sealing drum 2, central tube 3 and sleeve 4
It is column, the sealing drum 2 is located between packing element 1 and central tube 3, and the central tube 3 is located between sealing drum 2 and sleeve 4,
Fixed bonding has chip shield 21 in the sealing drum 2, and the material of chip shield 21 is rubber, so as to reach the effect of sealing
Fruit, the central tube 3 are equipped with air valve 31.
Specifically, the sectional elevation of the chip shield 21 is annular shape, the periphery of chip shield 21 is interior with sealing drum 2
Side wall fixed bonding, in the center of 2 inner cavity of sealing drum, the outer diameter of the packing element 1 is equal to sealing drum 2 for the position of chip shield 21
Internal diameter, the outer diameter of the sealing drum 2 is equal to the internal diameter of central tube 3, to make to link together with can be convenient between three.
Specifically, the mode that the packing element 1 and sealing drum 2, sealing drum 2 and central tube 3 are connected through a screw thread is fixed, glue
The lateral wall of cylinder 1, the inner sidewall close to 2 side of sealing drum of inner sidewall and lateral wall and central tube 3 of sealing drum 2 are carved with spiral shell
Line can cooperate between these screw threads, so that packing element 1 and sealing drum 2, sealing drum 2 and central tube 3 is fixed and is screwed on, spiral shell
The mode of line connection is conducive to subsequent disassembly and maintenance, and the air valve 31 is fixedly welded on the lateral wall of central tube 3, it is described in
The inner cavity of heart pipe 3 is communicated with air valve 31, and air valve 31 is similar to the safety valve on pressure cooker, when 3 air pressure inside of central tube is excessively high,
Gas can wear out air valve 31, reduce air pressure, prevent peril, the side wall and central tube 3 of the sleeve 4 are far from sealing
The side wall of 2 sides of cylinder is fixedly welded.
Specifically, the main cylinder 51 and secondary cylinder 52 are set in outside central tube 3,52 structure of the main cylinder 51 and secondary cylinder
At entirety in a rectangular parallelepiped shape, it is circular cavity that the whole interior that the main cylinder 51 and secondary cylinder 52 are constituted, which is provided with section,
Cavity can accommodate central tube 3, to protect central tube 3, main cylinder 51 and secondary cylinder 52 are that vacuum insulation panel is constituted, vacuum every
Hot plate is similar to the vacuum insulation panel used in kitchen range, to central tube 3 be separated with the external world, the main cylinder 51 and pair
The sectional elevation of cylinder 52 is " C " font, so as to which central tube 3 to be closed.
Specifically, the main cylinder 51 is fixedly welded with clamping block 511, the clamping block close to the both ends of secondary cylinder 52
511 sectional elevation is U shape, and the pair cylinder 52 is provided with card slot 521, the clamping close to the both ends of main cylinder 51
Block 511 and card slot 521 engage, and can be consolidated main cylinder 51 and secondary cylinder 52 by the snap-in function of clamping block 511 and card slot 521
It is fixed.
Specifically, this is used for the combined type packer under high temperature and high pressure condition, when in use, first by packing element 1 and sealing
Cylinder 2, sealing drum 2 are connected with the mode that middle spool 3 is connected through a screw thread, and keep the chip shield 21 in packing element 1 and sealing drum 2 close
Contact, thus guarantee leakproofness, it is then using clamping block 511 and card slot 521 that main cylinder 51 and secondary cylinder 52 is fixed, to make
Central tube 3 is protected by the overall structure that main cylinder 51 and secondary cylinder 52 are constituted, when needing to repair central tube 3 or more
When changing, clamping block 511 is extracted out from card slot 521, and separate central tube 3 from sealing drum 2.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (5)
1. a kind of combined type packer under high temperature and high pressure condition, including packing element (1), sealing drum (2), central tube (3), set
Cylinder (4), main cylinder (51) and secondary cylinder (52), it is characterised in that: the packing element (1), sealing drum (2), central tube (3) and sleeve
It (4) is column, the sealing drum (2) is located between packing element (1) and central tube (3), and the central tube (3) is located at sealing drum
(2) between sleeve (4), the interior fixed bonding of the sealing drum (2) has chip shield (21), and the central tube (3) is equipped with gas
Valve (31).
2. a kind of combined type packer under high temperature and high pressure condition according to claim 1, it is characterised in that: described
The sectional elevation of chip shield (21) is annular shape, and the outer diameter of the packing element (1) is equal to the internal diameter of sealing drum (2), the sealing
The outer diameter of cylinder (2) is equal to the internal diameter of central tube (3).
3. a kind of combined type packer under high temperature and high pressure condition according to claim 1, it is characterised in that: described
The mode that packing element (1) and sealing drum (2), sealing drum (2) and central tube (3) are connected through a screw thread is fixed, the air valve (31)
It is fixedly welded on the lateral wall of central tube (3), the inner cavity of the central tube (3) is communicated with air valve (31), the side of the sleeve (4)
Wall is fixedly welded with central tube (3) far from the side wall of sealing drum (2) side.
4. a kind of combined type packer under high temperature and high pressure condition according to claim 1, it is characterised in that: described
Main cylinder (51) and secondary cylinder (52) are set in central tube (3) outside, the entirety that the main cylinder (51) and secondary cylinder (52) are constituted
In a rectangular parallelepiped shape, it is circular cavity that the whole interior that the main cylinder (51) and secondary cylinder (52) are constituted, which is provided with section, described
Main cylinder (51) and the sectional elevation of secondary cylinder (52) are " C " font.
5. a kind of combined type packer under high temperature and high pressure condition according to claim 1, it is characterised in that: described
Main cylinder (51) is fixedly welded with clamping block (511) close to the both ends of secondary cylinder (52), and the clamping block (511) is cutd open vertically
Face is U shape, and the pair cylinder (52) is provided with card slot (521), the clamping block close to the both ends of main cylinder (51)
(511) engage with card slot (521).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811171415.XA CN109138902A (en) | 2018-09-30 | 2018-09-30 | A kind of combined type packer under high temperature and high pressure condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811171415.XA CN109138902A (en) | 2018-09-30 | 2018-09-30 | A kind of combined type packer under high temperature and high pressure condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109138902A true CN109138902A (en) | 2019-01-04 |
Family
ID=64810987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811171415.XA Pending CN109138902A (en) | 2018-09-30 | 2018-09-30 | A kind of combined type packer under high temperature and high pressure condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109138902A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110007420A (en) * | 2019-03-25 | 2019-07-12 | 中国科学院长春光学精密机械与物理研究所 | A kind of aerating and exhaust device of thin-walled sealing drum |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670327A (en) * | 2014-01-02 | 2014-03-26 | 四川省威尔敦化工有限公司 | Four-stage compression type packer applicable to high-temperature and high-pressure construction conditions |
| CN108060905A (en) * | 2016-11-07 | 2018-05-22 | 天津汇铸石油设备科技有限公司 | High temperature and pressure packer |
-
2018
- 2018-09-30 CN CN201811171415.XA patent/CN109138902A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670327A (en) * | 2014-01-02 | 2014-03-26 | 四川省威尔敦化工有限公司 | Four-stage compression type packer applicable to high-temperature and high-pressure construction conditions |
| CN108060905A (en) * | 2016-11-07 | 2018-05-22 | 天津汇铸石油设备科技有限公司 | High temperature and pressure packer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110007420A (en) * | 2019-03-25 | 2019-07-12 | 中国科学院长春光学精密机械与物理研究所 | A kind of aerating and exhaust device of thin-walled sealing drum |
| CN110007420B (en) * | 2019-03-25 | 2020-06-12 | 中国科学院长春光学精密机械与物理研究所 | Inflation and deflation device of thin-wall sealing cylinder |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190104 |