CN110014638B - Memory rubber packer, and processing device and processing method thereof - Google Patents
Memory rubber packer, and processing device and processing method thereof Download PDFInfo
- Publication number
- CN110014638B CN110014638B CN201910036015.6A CN201910036015A CN110014638B CN 110014638 B CN110014638 B CN 110014638B CN 201910036015 A CN201910036015 A CN 201910036015A CN 110014638 B CN110014638 B CN 110014638B
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- Prior art keywords
- pipe
- rubber
- rubber cylinder
- packer
- memory
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- 238000012545 processing Methods 0.000 title claims abstract description 37
- 238000003672 processing method Methods 0.000 title claims abstract description 15
- 238000004513 sizing Methods 0.000 claims abstract description 13
- 238000007493 shaping process Methods 0.000 claims abstract description 12
- 230000007704 transition Effects 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims description 39
- 238000012856 packing Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- 238000005253 cladding Methods 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 239000002585 base Substances 0.000 description 31
- 238000005516 engineering process Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
- B29C61/06—Making preforms having internal stresses, e.g. plastic memory
- B29C61/08—Making preforms having internal stresses, e.g. plastic memory by stretching tubes
-
- 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
- E21B33/127—Packers; Plugs with inflatable sleeve
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)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a memory rubber packer, a processing device and a processing method thereof, wherein the memory rubber packer comprises a base pipe and a rubber cylinder for coating the outer wall of the base pipe, the rubber cylinder is made of memory rubber, the base pipe is provided with a first pipe orifice, and the processing device comprises: the device comprises a pulling assembly, a shaping pipe and a caliber mould, wherein the pulling assembly is arranged on a first pipe orifice; the shaping pipe is provided with a second pipe orifice which is sleeved on the first pipe orifice and is communicated with the base pipe; the caliber mould is annularly arranged on the outer wall of the second pipe orifice; after the rubber cylinder is heated to enable the temperature of the rubber cylinder to be higher than the transition temperature of the rubber cylinder, the pulling assembly is pulled to drive the base pipe to enter the sizing pipe so as to stretch the rubber cylinder, and meanwhile, the caliber mould and the base pipe extrude the rubber cylinder to enable the rubber cylinder to be evenly thinned.
Description
Technical Field
The invention relates to a memory rubber packer, a processing device and a processing method thereof.
Background
There are many applications of zonal packers in oil fields, including: auxiliary well cementation, layered mining, sectional water control, sectional fracturing acid fracturing, sealing and isolating a water layer of a mudstone layer and the like. The conventional well completion casing packer needs to be set, set and hung by mechanical action or hydraulic action, even needs a special service tool, and has a complex operation process. The self-expanding rubber packer needs to adjust the formula expansion according to the conditions of oil or water, the use environment temperature and the like, even under the condition of poor oil-water temperature environment, the effect is difficult to realize, or the self-expanding rubber packer is expanded by using methods such as special diesel oil and the like. The compression packer can only be used in cooperation with a service tool in an open hole, and is influenced by the thickness of rubber, so that the sealing effect is limited. The application duration of the expandable packer in an open hole is limited, and meanwhile, when a plurality of expandable packers are used simultaneously, the condition that each packer is sufficiently expanded and sealed is difficult to ensure, and a string groove can be pressed during fracturing. Therefore, it is urgently needed to develop a processing device and a processing method for a memory rubber packer, which overcome the defects.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a processing apparatus for a memory rubber packer, wherein the memory rubber packer comprises a base pipe and a rubber cylinder covering an outer wall of the base pipe, the rubber cylinder is made of memory rubber, the base pipe has a first pipe orifice, and the processing apparatus comprises:
the pulling assembly is arranged on the first pipe orifice;
the shaping pipe is provided with a second pipe orifice, the second pipe orifice is sleeved on the first pipe orifice, and the shaping pipe is communicated with the base pipe;
the caliber mould is annularly arranged on the second pipe orifice;
wherein, it makes to right the packing element heats the temperature of packing element is higher than its transition temperature after, the pulling the subassembly drives the parent tube gets into the sizing pipe is in order to stretch the packing element, simultaneously the bore mould reaches the parent tube is right the packing element extrudees so that the even attenuate of packing element.
The processing device further comprises a heating barrel, the base pipe, the rubber barrel and the shaping pipe are arranged in the heating barrel, the heating barrel is also filled with a heat-conducting medium, and the heat-conducting medium is heated to raise the temperature of the rubber barrel.
The above processing apparatus, wherein the pulling assembly further comprises:
one end of the pulling rod is arranged in the first pipe orifice;
the sleeve cover is buckled on the first pipe orifice;
wire rope, detachably connect in the other end of pulling the pole, pulling wire rope drives the parent tube gets into the sizing tube is in order to stretch the packing element.
The above processing apparatus further includes:
the telescopic net pipe is coated on the rubber cylinder and the sleeve cover;
and the pressing plate is connected to the sleeve cover and tightly presses the telescopic net pipe on the sleeve cover.
In the processing device, one end of the rubber cylinder, which is close to the first pipe orifice, has a conical surface structure.
In the above processing apparatus, the heating barrel further includes a heat-conducting medium inlet and a heat-conducting medium outlet, the heating barrel further includes a blocking plate and a base respectively mounted on the top of the heating barrel, and the bottom of the heating barrel is mounted on the base.
The invention also provides a processing method of the memory rubber packer, wherein the processing method is applied to any one of the processing devices, and comprises the following steps:
assembling the memory rubber packer with a processing device;
heating the rubber cylinder to enable the temperature of the rubber cylinder to be higher than the transition temperature of the rubber cylinder;
the base pipe is driven to enter the sizing pipe by pulling the pulling assembly so as to stretch the rubber cylinder;
and extruding the rubber cylinder through an aperture mould and the base pipe.
The processing method further comprises the step of injecting a heat-conducting medium into the heating barrel, and heating the rubber barrel by heating the heat-conducting medium.
In the processing method, when the step of assembling the memory rubber packer with the processing device is performed, the step of installing the telescopic net pipe is further included.
The above processing method further comprises a step of treating the stretched rubber tube so as to maintain the stretched shape.
Still further, the method comprises the step of treating the stretched rubber sleeve to keep the stretched shape.
The invention also provides a memory rubber packer which is characterized by comprising a base pipe and a rubber cylinder for coating the outer wall of the base pipe, wherein the rubber cylinder is made of memory rubber, and the memory rubber packer is manufactured by the processing device or the processing method.
Aiming at the prior art, the invention has the following effects:
1. the method is suitable for casing well completion and open hole well completion, is not limited by well types, has strong adaptability and gives more choices to engineers;
2. compared with the conventional rubber technology, the rubber has more excellent oil resistance, more excellent physical property and wear resistance, and can work at high temperature for a long time;
3. can be compressed, easily shaped, acid-resistant and alkali-resistant, and can realize memory expansion by heating after compression and shaping;
4. the packer heat-sensitive mechanical-motion-free setting technology can be realized, the complex mechanical mechanism design of the packer is reduced, and the stability and reliability of the tool in the well are improved;
5. the packer can realize the packing of irregular well diameters.
Drawings
FIG. 1 is a schematic view of the overall structure of a processing apparatus according to the present invention;
FIG. 2 is a schematic structural view of a base pipe and a rubber cylinder before processing;
FIG. 3 is a schematic structural diagram of the base pipe and the rubber cylinder after processing.
Wherein, the reference numbers:
Pulling assembly 21
Caliber mould 23
Heat-conducting medium inlet 241
The heat transfer medium outlet 242
Telescopic net pipe 25
Detailed Description
The detailed description and technical description of the present invention are further described in the context of a preferred embodiment, but should not be construed as limiting the practice of the present invention.
Referring to fig. 1-3, fig. 1 is a schematic view of an overall structure of a processing apparatus according to the present invention; FIG. 2 is a schematic structural view of a base pipe and a rubber cylinder before processing; FIG. 3 is a schematic structural diagram of the base pipe and the rubber cylinder after processing. As shown in fig. 1-3, the memory rubber packer comprises a base pipe 11 and a rubber sleeve 12 covering the outer wall of the base pipe 11, the rubber sleeve 12 is made of memory rubber, the base pipe 11 has a first pipe orifice 111, and the processing device of the memory rubber packer of the invention comprises: a pulling assembly 21, a sizing pipe 22 and an aperture mold 23; the pulling assembly 21 is arranged on the first pipe orifice 111; the shaping pipe 22 is provided with a second pipe orifice 221, the second pipe orifice 221 is sleeved on the first pipe orifice 111, and the shaping pipe 22 is communicated with the base pipe 11; the caliber mold 23 is annularly arranged on the outer wall of the second pipe orifice 221; wherein, heat packing element 12 and make the temperature of packing element 12 be higher than its transition temperature after, pulling subassembly 23 drives base tube 11 and gets into the sizing pipe 22 in order tensile packing element 12, and bore mould 23 and base tube 11 extrude packing element 12 so that packing element 12 evenly attenuate simultaneously.
In this embodiment, one end of the rubber cylinder 12 close to the first nozzle 111 has a conical surface structure 121.
Further, the processing device further comprises a heating barrel 24, the base pipe 11, the rubber cylinder 12 and the sizing pipe 2 are arranged in the heating barrel 24, the heating barrel 24 also contains a heat-conducting medium, and the heat-conducting medium is heated to raise the temperature of the rubber cylinder 12 to reach the transition temperature of the rubber cylinder. The heating barrel 24 is further provided with a heat-conducting medium inlet 241 and a heat-conducting medium outlet 242, the heat-conducting medium is injected into the heating barrel 24 through the heat-conducting medium inlet 241, the heat-conducting medium in the heating barrel 24 is discharged through the heat-conducting medium outlet 242, the heating barrel 24 further comprises a blocking plate 243 and a base 244, the blocking plate 243 is installed at the top of the heating barrel 24, the bottom of the heating barrel 24 is installed on the base 244, and the heating barrel 24 is sealed through the blocking plate 243 and the base 244.
Still further, the pulling assembly 21 further comprises: a pulling rod 211, a cover 212 and a wire rope (not shown); one end of the pulling rod 211 is arranged in the first pipe orifice 111; the cover 232 is fastened on the first pipe orifice 111; the other end of the pulling rod 212 is provided with a connecting hole (not shown), a steel wire rope (not shown) is detachably connected to the connecting hole (not shown), and the steel wire rope (not shown) is pulled to drive the base pipe 11 to enter the shaping pipe 22 so as to pull the rubber cylinder 12.
It should be noted that, in the present embodiment, a steel cable (not shown) is used to pull the base pipe 11 as a preferred embodiment, but the invention is not limited thereto.
Furthermore, the processing device further comprises a telescopic net pipe 25 and a pressing plate 26, wherein the telescopic net pipe 26 is coated on the rubber cylinder 12 and the sleeve cover 232; the pressing plate is connected to the cover 232 and presses the telescopic net tube 25 onto the cover 232.
The invention also provides a processing method of the memory rubber packer, wherein the processing method is applied to the processing device, and comprises the following steps:
assembling the memory rubber packer with a processing device;
heating the rubber cylinder to enable the temperature of the rubber cylinder to be higher than the transition temperature of the rubber cylinder;
the base pipe is driven to enter the sizing pipe by pulling the pulling assembly so as to stretch the rubber cylinder;
and extruding the rubber cylinder through an aperture mould and the base pipe.
Further, the method also comprises the step of injecting a heat-conducting medium into the heating barrel, and heating the rubber barrel by heating the heat-conducting medium.
And furthermore, when the step of assembling the memory rubber packer with the processing device is carried out, the step of installing the telescopic net pipe is also included.
Still further, the method comprises the step of treating the stretched rubber sleeve to keep the stretched shape.
The invention also provides a memory rubber packer, which comprises a base pipe and a rubber cylinder for coating the outer wall of the base pipe, wherein the rubber cylinder is made of memory rubber, and the memory rubber packer is manufactured by the processing device or the processing method.
In conclusion, the memory rubber packer processed based on the method is suitable for casing well completion and open hole well completion, is not limited by well types, has strong adaptability and gives more choices to engineers; compared with the conventional rubber technology, the rubber has more excellent oil resistance, more excellent physical property and wear resistance, and can work at high temperature for a long time; can be compressed, easily shaped, acid-resistant and alkali-resistant, and can realize memory expansion by heating after compression and shaping; the packer heat-sensitive mechanical-motion-free setting technology can be realized, the complex mechanical mechanism design of the packer is reduced, and the stability and reliability of the tool in the well are improved; the packer can realize the packing of irregular well diameters.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (11)
1. The utility model provides a processingequipment of memory rubber packer which characterized in that, memory rubber packer includes the parent tube and the cladding the packing element of the outer wall of parent tube, the material of packing element is memory rubber, the parent tube has first mouth of pipe, processingequipment contains:
the pulling assembly is arranged on the first pipe orifice;
the shaping pipe is provided with a second pipe orifice, the second pipe orifice is sleeved on the first pipe orifice, and the shaping pipe is communicated with the base pipe;
the caliber mould is annularly arranged on the second pipe orifice;
wherein, it makes to right the packing element heats the temperature of packing element is higher than its transition temperature after, the pulling the subassembly drives the parent tube gets into the sizing pipe is in order to stretch the packing element, simultaneously the bore mould reaches the parent tube is right the packing element extrudees so that the even attenuate of packing element.
2. The processing apparatus as claimed in claim 1, further comprising a heating barrel, wherein the base pipe, the rubber cylinder and the sizing pipe are disposed in the heating barrel, and the heating barrel further contains a heat transfer medium, and the heat transfer medium is heated to raise the temperature of the rubber cylinder.
3. The tooling of claim 1 wherein the pulling assembly further comprises:
one end of the pulling rod is arranged in the first pipe orifice;
the sleeve cover is buckled on the first pipe orifice;
wire rope, detachably connect in the other end of pulling the pole, pulling wire rope drives the parent tube gets into the sizing tube is in order to stretch the packing element.
4. The processing apparatus as set forth in claim 3, further comprising:
the telescopic net pipe is coated on the rubber cylinder and the sleeve cover;
and the pressing plate is connected to the sleeve cover and tightly presses the telescopic net pipe on the sleeve cover.
5. The tooling device of claim 1 wherein an end of said glue cartridge proximate said first nozzle has a tapered configuration.
6. The processing apparatus as claimed in claim 2, wherein the heating barrel further comprises a heat-conducting medium inlet and a heat-conducting medium outlet, the heating barrel further comprises a blocking plate and a base respectively mounted on the top of the heating barrel, and the bottom of the heating barrel is mounted on the base.
7. A method for processing a memory rubber packer, which is applied to the processing device of any one of claims 1 to 6, and comprises the following steps:
assembling the memory rubber packer with a processing device;
heating the rubber cylinder to enable the temperature of the rubber cylinder to be higher than the transition temperature of the rubber cylinder;
the base pipe is driven to enter the sizing pipe by pulling the pulling assembly so as to stretch the rubber cylinder;
and extruding the rubber cylinder through an aperture mould and the base pipe.
8. The process of claim 7, further comprising injecting a heat transfer medium into the heating barrel, and heating the glue cartridge by heating the heat transfer medium.
9. The method of manufacturing of claim 7, wherein the step of assembling the memory rubber packer with the manufacturing device further comprises the step of installing a telescoping mesh tube.
10. The process of claim 7, further comprising the step of treating said stretched sleeve to maintain its stretched shape.
11. A memory rubber packer is characterized by comprising a base pipe and a rubber cylinder wrapping the outer wall of the base pipe, wherein the rubber cylinder is made of memory rubber, the memory rubber packer is manufactured by the processing device of any one of claims 1 to 6, or the memory rubber packer is manufactured by the processing method of any one of claims 7 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910036015.6A CN110014638B (en) | 2019-01-15 | 2019-01-15 | Memory rubber packer, and processing device and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910036015.6A CN110014638B (en) | 2019-01-15 | 2019-01-15 | Memory rubber packer, and processing device and processing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110014638A CN110014638A (en) | 2019-07-16 |
| CN110014638B true CN110014638B (en) | 2021-03-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910036015.6A Active CN110014638B (en) | 2019-01-15 | 2019-01-15 | Memory rubber packer, and processing device and processing method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN110014638B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0516232A (en) * | 1991-07-10 | 1993-01-26 | Fujikura Ltd | Manufacture of heat-shrinkable tube |
| WO1998015770A1 (en) * | 1996-10-10 | 1998-04-16 | The Gates Corporation | Self-adjusting at-least-twice-oriented polymer hose and tubing clamp |
| JP2001205705A (en) * | 2000-01-26 | 2001-07-31 | Hitachi Cable Ltd | Tool for enlarging insulation cylinder and method for connecting power cable |
| JP3732147B2 (en) * | 2002-02-05 | 2006-01-05 | 株式会社十川ゴム | Thermally expandable rubber and piping construction structure |
| CN102322237A (en) * | 2011-06-14 | 2012-01-18 | 中国石油天然气股份有限公司 | Self-expansion packer |
| CN202591267U (en) * | 2012-04-05 | 2012-12-12 | 长沙海航高精管科技有限公司 | Drawing die of large-scale waveguide tube |
| CN103089185A (en) * | 2011-10-31 | 2013-05-08 | 中国石油化工股份有限公司 | Operating device and method for constant-borehole-diameter expandable casing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11065807B2 (en) * | 2017-04-13 | 2021-07-20 | The University Of Texas System Board Of Regents | Method of manufacturing a heat-shrink elastomeric element |
-
2019
- 2019-01-15 CN CN201910036015.6A patent/CN110014638B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0516232A (en) * | 1991-07-10 | 1993-01-26 | Fujikura Ltd | Manufacture of heat-shrinkable tube |
| WO1998015770A1 (en) * | 1996-10-10 | 1998-04-16 | The Gates Corporation | Self-adjusting at-least-twice-oriented polymer hose and tubing clamp |
| JP2001205705A (en) * | 2000-01-26 | 2001-07-31 | Hitachi Cable Ltd | Tool for enlarging insulation cylinder and method for connecting power cable |
| JP3732147B2 (en) * | 2002-02-05 | 2006-01-05 | 株式会社十川ゴム | Thermally expandable rubber and piping construction structure |
| CN102322237A (en) * | 2011-06-14 | 2012-01-18 | 中国石油天然气股份有限公司 | Self-expansion packer |
| CN103089185A (en) * | 2011-10-31 | 2013-05-08 | 中国石油化工股份有限公司 | Operating device and method for constant-borehole-diameter expandable casing |
| CN202591267U (en) * | 2012-04-05 | 2012-12-12 | 长沙海航高精管科技有限公司 | Drawing die of large-scale waveguide tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110014638A (en) | 2019-07-16 |
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