CN114542006A - Sealed cartridge assembly and packer of gluing - Google Patents
Sealed cartridge assembly and packer of gluing Download PDFInfo
- Publication number
- CN114542006A CN114542006A CN202011349803.XA CN202011349803A CN114542006A CN 114542006 A CN114542006 A CN 114542006A CN 202011349803 A CN202011349803 A CN 202011349803A CN 114542006 A CN114542006 A CN 114542006A
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- Prior art keywords
- sealant
- cartridge
- ring
- rubber
- assembly
- 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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Links
- 238000004026 adhesive bonding Methods 0.000 title description 8
- 239000000565 sealant Substances 0.000 claims abstract description 88
- 229920001971 elastomer Polymers 0.000 claims description 91
- 239000000835 fiber Substances 0.000 claims description 62
- 238000012856 packing Methods 0.000 claims description 23
- 238000003825 pressing Methods 0.000 claims description 16
- 239000003292 glue Substances 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims 4
- 230000007423 decrease Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 20
- 238000011161 development Methods 0.000 abstract description 4
- 238000005553 drilling Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 238000009941 weaving Methods 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229920001774 Perfluoroether Polymers 0.000 description 1
- 229920006172 Tetrafluoroethylene propylene Polymers 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002343 natural gas well Substances 0.000 description 1
- UJMWVICAENGCRF-UHFFFAOYSA-N oxygen difluoride Chemical compound FOF UJMWVICAENGCRF-UHFFFAOYSA-N 0.000 description 1
- 229920005594 polymer fiber Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
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
- E21B33/128—Packers; Plugs with a member expanded radially by axial pressure
-
- 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
- E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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)
- Gasket Seals (AREA)
Abstract
The invention provides a sealant barrel assembly and a packer, and relates to the field of oil-gas exploration and development or geological drilling operation. The sealant barrel assembly and the packer provided by the invention can be used for effectively sealing under the conditions of high temperature and high pressure.
Description
Technical Field
The invention relates to the field of oil and gas exploration and development or geological drilling operation, in particular to a sealing rubber sleeve assembly and a packer.
Background
The packer is an underground tool in the field of oil-gas exploration, and is used for forming effective sealing in an annular space between an oil pipe at the bottom of an oil-gas well and a sleeve, controlling oil gas in a stratum to be collected to the ground through the oil pipe and not to enter the annular space, and preventing the oil gas from rushing out of a well mouth uncontrollably to cause serious blowout accidents.
The packer generally comprises a central shaft, a sealing rubber cylinder, slips and other components, wherein the sealing rubber cylinder is a key component for realizing the packing function. In the deep oil and gas resource exploration and development process, the packer needs to be placed at the bottom of a well with the depth of 7000 m or even more to bear the production pressure difference of more than 70MPa and the environmental temperature of more than 150 ℃; meanwhile, the pipe column connecting the wellhead and the packer continuously extends and shortens under the action of temperature, pressure, vibration and the like, so that the packer is in a bad stress state, and a sealing component is easy to lose efficacy. In addition, the requirement of the airtight packer used in the natural gas well is higher, and the rubber barrel of the airtight packer is required to have higher contact pressure under the same use temperature and pressure conditions.
However, the existing packer rubber cylinder is generally formed by injecting and pressing rubber materials, the rubber hardness is sharply reduced at high temperature, the packer rubber cylinder is in a jelly shape, the mobility is strong under the action of high pressure, the sealing is easy to lose efficacy, and the sealing effect of the packer, particularly the air-tight packer, is further seriously influenced.
In view of the above, the inventor designs a sealant barrel assembly and a packer through repeated tests according to production design experience of the field and related fields for many years, so as to solve the problems in the prior art.
Disclosure of Invention
The invention aims to provide a sealant barrel assembly and a packer, which can realize effective sealing under the conditions of high temperature and high pressure.
In order to achieve the purpose, the invention provides a sealant barrel assembly, wherein the sealant barrel assembly comprises a middle rubber barrel and two side rubber barrels, the middle rubber barrel and the side rubber barrels are cylindrical and coaxially arranged, the two side rubber barrels are symmetrically arranged at two ends of the middle rubber barrel, and the two side rubber barrels are respectively abutted against two ends of the middle rubber barrel.
The sealant barrel assembly is characterized in that the barrel wall of the side sealant barrel consists of a fiber woven mesh and rubber coated outside the fiber woven mesh.
The sealant barrel assembly comprises a side sealant barrel, a plurality of fiber woven meshes are arranged in the barrel wall of the side sealant barrel, the fiber woven meshes are barrel-shaped bodies with grid-shaped structures, and the fiber woven meshes are sleeved layer by layer from inside to outside along the radial direction of the side sealant barrel.
The sealing glue cylinder assembly comprises a fiber weaving net, wherein the fiber weaving net is of a net structure formed by weaving a plurality of circumferential fibers and a plurality of longitudinal fibers in a staggered mode, the circumferential fibers are concentric circular rings and are arranged along the circumferential direction of a side glue cylinder, the longitudinal fibers are arranged along the axial sequence of the side glue cylinder at intervals, the longitudinal fibers are arranged along the axial direction of the side glue cylinder, and the longitudinal fibers are arranged along the circumferential direction of the side glue cylinder at intervals.
The sealant cartridge assembly as described above, wherein the wire diameter of the circumferential fibers is greater than the wire diameter of the longitudinal fibers.
The sealant barrel assembly is characterized in that two end faces of the middle sealant barrel are respectively matched with the end face conical surfaces of the two side sealant barrels.
The sealant barrel assembly is characterized in that the end face of the middle sealant barrel is a conical surface gradually reducing in diameter along the axially outward direction of the middle sealant barrel, and the end face of the side sealant barrel facing one end of the middle sealant barrel is also a conical surface and is in alignment fit with the end face of the middle sealant barrel.
The sealant barrel assembly as described above, wherein a folding protection ring is disposed at the other end of the side sealant barrel, which is opposite to the middle sealant barrel, the folding protection ring is made of ductile metal, the end surface of the other end of the side sealant barrel is a plane, one side surface of the folding protection ring abuts against the end surface of the side sealant barrel, and the outer edge of the folding protection ring extends towards the side wall of the side sealant barrel to form a limit flange.
The sealant barrel assembly comprises a side sealant barrel, a middle sealant barrel and a side sealant barrel, wherein the side sealant barrel is back to the other end of the middle sealant barrel and is provided with a convex-prevention protection ring, an installation ring groove is formed in the inner wall of the other end of the side sealant barrel, the convex-prevention protection ring is embedded in the installation ring groove, and the side surface of the convex-prevention protection ring is abutted to the side surface of the folding protection ring.
The invention also provides a packer, wherein the packer at least comprises a central shaft, a guide ring, a pressing ring and the sealant barrel assembly, the guide ring, the sealant barrel assembly and the pressing ring are sequentially sleeved outside the central shaft along the axial direction of the central shaft, the guide ring and the pressing ring are respectively abutted against two ends of the sealant barrel assembly, the guide ring is fixedly connected with the central shaft, and the pressing ring, the side sealant barrel and the middle sealant barrel are respectively in sliding fit with the central shaft.
The sealant barrel assembly and the packer provided by the invention have the following characteristics and advantages:
the sealant barrel assembly and the packer are put into a casing pipe in a well when in use, then the compression ring moves towards the guide ring under the action of the pushing force to drive the side rubber barrels and the middle rubber barrel to deform to fully block an annular space between the casing pipe and the central shaft.
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for facilitating the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. Those skilled in the art, having the benefit of the teachings of this invention, may choose from the various possible shapes and proportional sizes to implement the invention as a matter of case.
FIG. 1 is a schematic structural view of a sealant cartridge assembly according to the present invention;
FIG. 2 is a schematic structural view of a woven fiber mesh of the present invention;
FIG. 3 is a schematic setting diagram of the packer of the present invention;
FIG. 4 is a schematic structural diagram of a middle rubber cylinder in the present invention;
fig. 5 is a schematic view of the installation of the folded guard ring of the present invention.
Description of reference numerals:
100. a sealant cartridge assembly; 10. A middle rubber cylinder;
20. an edge rubber cylinder; 21. Weaving a fiber mesh;
211. circumferential fibers; 212. Longitudinal fibers;
30. folding the protection ring; 31. A limiting flange;
40. an anti-bulge protection ring; 200. A packer;
210. a central shaft; 220. A guide ring;
230. a compression ring; 300. A sleeve.
Detailed Description
The details of the present invention can be more clearly understood in conjunction with the accompanying drawings and the description of the embodiments of the present invention. However, the specific embodiments of the present invention described herein are for the purpose of illustration only and are not to be construed as limiting the invention in any way. Any possible variations based on the present invention may be conceived by the skilled person in the light of the teachings of the present invention, and these should be considered to fall within the scope of the present invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may be present.
The invention provides a sealant barrel assembly 100, wherein the sealant barrel assembly 100 comprises a middle sealant barrel 10 and two side sealant barrels 20, the middle sealant barrel 10 and the side sealant barrels 20 are cylindrical and coaxially arranged, the two side sealant barrels 20 are respectively positioned at two ends of the middle sealant barrel 10, and the two side sealant barrels 20 are respectively abutted against two ends of the middle sealant barrel 10.
As shown in fig. 1 to 5, the present invention further provides a packer 200, where the packer 200 at least includes a central shaft 210, a guide ring 220, a pressing ring 230 and a sealant barrel assembly 100, the guide ring 220, the sealant barrel assembly 100 and the pressing ring 230 are sequentially sleeved outside the central shaft 210 along an axial direction of the central shaft 210, the guide ring 220 and the pressing ring 230 are respectively abutted to two ends of the sealant barrel assembly 100, the guide ring 220 is fixedly connected to the central shaft 210, and the pressing ring 230, the side rubber barrel 20 and the middle rubber barrel 10 are respectively in sliding fit with the central shaft 210.
When the sealant cartridge assembly 100 and the packer 200 provided by the invention are used, the sealant cartridge assembly 100 and the packer 200 are put into a casing 300 in a well, then under the action of a pushing force, the compression ring 230 moves towards the guide ring 220 to drive the side rubber cartridges 20 and the middle rubber cartridges 10 to deform, and an annular space between the casing 300 and the central shaft 210 is completely sealed off.
In the present invention, the high temperature and high pressure refer to a working condition of 150 ℃ or higher and 70MPa or higher; meanwhile, the present invention proposes that the seal cartridge assembly 100 and the packer 200 can be used to hermetically seal natural gas existing in a natural gas exploration and development well.
In an alternative embodiment of the present invention, the wall of the edge rubber tube 20 is composed of a fiber woven mesh 21 and rubber coated on the fiber woven mesh 21. The fiber woven mesh 21 can promote the thrust to be uniformly dispersed in the edge rubber sleeve 20, increase the contact stress between the edge rubber sleeve 20 and the sleeve 300 and increase the sealing reliability. Meanwhile, the fiber mesh grid 21 can also strengthen the deformation control capability of the side packing element 20, so that the side packing element 20 cannot excessively deform under a high-temperature and high-pressure state, the side packing element 20 can be ensured to be attached to the sleeve 300 all the time, the sealing performance of the side packing element 20 is ensured, the middle packing element 10 can be prevented from being extruded from a gap between the side packing element 20 and the sleeve 300, and the sealing performance of the middle packing element 10 is further ensured.
In an alternative example of this embodiment, a plurality of woven fiber nets 21 are disposed in the wall of the edge gluing cylinder 20, the woven fiber nets 21 are tubular bodies having a grid-like structure, and the plurality of woven fiber nets 21 are sleeved layer by layer from inside to outside along the radial direction of the edge gluing cylinder 20.
In an alternative example, each fiber woven mesh 21 is a mesh body formed by weaving a plurality of circumferential fibers 211 and a plurality of longitudinal fibers 212 in a staggered manner, the circumferential fibers 211 are concentric circular rings and are arranged along the circumferential direction of the edge gluing cylinder 20, the plurality of longitudinal fibers 211 are sequentially arranged at intervals along the axial direction of the edge gluing cylinder 20, the longitudinal fibers 212 are arranged along the axial direction of the edge gluing cylinder 20, and the plurality of longitudinal fibers 212 are sequentially arranged at intervals along the circumferential direction of the edge gluing cylinder 20. The circumferential fibers 211 form a skeleton of the edge dam 20, controlling the extent of lateral expansion when the edge dam 20 is longitudinally compressed. The longitudinal fibers 212 and the circumferential fibers 211 are interwoven into a net to enhance the overall strength of the edge rubber tube 20 and prevent the edge rubber tube from flowing in a high-temperature softening state. Meanwhile, the fiber woven mesh 21 can adjust the installation density (the distance between the circumferential fibers 211 and the distance between the longitudinal fibers 212) as required, and realize effective sealing at different temperatures and pressures.
Further, the circumferential fibers 211 and the longitudinal fibers 212 are made of high temperature resistant polymer materials, respectively.
Further, the wire diameter of the circumferential fibers 211 is larger than that of the longitudinal fibers 212.
Preferably, the ratio of the diameter of the circumferential fibers 211 to the diameter of the longitudinal fibers 212 is 5: 1, i.e., the diameter of the circumferential fibers 211: the longitudinal fibers 212 have a wire diameter of 5: 1.
in an alternative example of this embodiment, the rubber coated on the fiber woven mesh 21 is a high temperature and high pressure resistant rubber; the middle rubber tube 10 is also made of high temperature and high pressure resistant rubber.
Preferably, the high temperature and high pressure resistant rubber is tetrafluoroethylene-propylene rubber, fluorine rubber, perfluoro ether rubber or a mixture thereof.
In an alternative embodiment, the two end faces of the middle rubber tube 10 are respectively matched with the end faces of the two side rubber tubes 20 in a conical manner. Adopt above-mentioned structure, can increase the face of the butt face between packing element 10 and the limit packing element 20 and connect, and then increase two limit packing elements 20 and to the spacing effect of packing element 10.
In an alternative example of this embodiment, the end surface of the middle rubber cylinder 10 is a tapered surface gradually reducing in diameter in the outward direction in the axial direction of the middle rubber cylinder 10, and the end surface of the side rubber cylinder 20 facing one end of the middle rubber cylinder 10 is also a tapered surface and is aligned with the end surface of the middle rubber cylinder 10. By adopting the structure, the side rubber tube 20 not only can apply limiting force to the middle rubber tube 10 in the axial direction, but also the side rubber tube 20 can press the middle rubber tube 10 on the central shaft 210, so that the middle rubber tube 10 is prevented from being extruded from the gap between the side rubber tube 20 and the sleeve 200.
Preferably, the end face of the middle rubber tube 10 is a tapered face of 14 degrees (i.e. the included angle θ between the end face of the middle rubber tube 10 and the cross section of the middle rubber tube 10, as shown in fig. 4).
In an alternative embodiment of the present invention, the other end of the side glue cylinder 20 facing away from the middle glue cylinder 10 is provided with a folding protection ring 30, the folding protection ring 30 is made of ductile metal, the end surface of the other end of the side glue cylinder 20 is a flat surface, one side surface of the folding protection ring 30 abuts against the end surface of the side glue cylinder 20, and the outer edge of the folding protection ring 30 extends towards the side wall of the side glue cylinder 20 to form a limit flange 31. By adopting the structure, one side surface of the folding protection ring 30 is tightly attached to the end surface of the side rubber cylinder 20, the other side surface of the folding protection ring 30 is tightly attached to the guide ring 220 or the pressing ring 230, meanwhile, the limiting flange 31 covers part of the side wall of the side rubber cylinder 20, when the side rubber cylinder 20 expands, the folding protection ring 30 also expands along with the side rubber cylinder 20, the limiting flange 31 of the folding protection ring 30 always covers the shoulder of the side rubber cylinder 20, and the side rubber cylinder 20 is effectively prevented from being extruded from the gap between the folding protection ring 30 and the sleeve 300 in a high-temperature softening state.
Further, the folded guard ring 30 may be made of a high ductility metal such as brass, aluminum alloy, or the like.
Preferably, the surface (inner surface) of the folded protection ring 30 facing the edge rubber cylinder 20 is polished to have a roughness ra0.8-1.6 μm, and the surface (outer surface) of the folded protection ring 30 facing away from the edge rubber cylinder 20 has a roughness ra1.6-3.2 μm.
In an alternative example of this embodiment, the other end of the edge rubber tube 20 facing away from the middle rubber tube 10 is provided with an anti-protruding protection ring 40, the inner wall of the other end of the edge rubber tube 20 is provided with a mounting ring groove 22, the anti-protruding protection ring 40 is arranged in the mounting ring groove 22, and the side surface of the anti-protruding protection ring 40 abuts against the side surface of the folding protection ring 30. The anti-protruding protection ring 40 has a limiting function on the edge rubber cylinder 20 and the folding protection ring 30, and further prevents the end faces of the folding protection ring 30 and the edge rubber cylinder 20 from moving.
In an alternative example of the present invention, the ratio of the longitudinal lengths (the length in the axial direction of the central shaft 210) of the side rubber cylinder 20 and the middle rubber cylinder 10 is 1: 1.3.
Further, the outer wall of the central shaft 210 is polished to have a roughness of Ra0.8-1.6 μm.
Furthermore, the inner diameter of the middle rubber cylinder 10 and the inner diameter of the side rubber cylinder 20 are slightly smaller than the outer diameter of the central shaft 210, that is, the middle rubber cylinder 10 and the side rubber cylinder 20 are in interference fit with the central shaft 210, and generally, the inner diameter of the middle rubber cylinder 10 (the inner diameter of the side rubber cylinder 20) is 1-1.2mm smaller than the outer diameter of the central shaft 210.
Referring to fig. 1 to 5, the operation of the seal cartridge assembly 100 and the packer 200 according to the present invention will now be described in detail with reference to an embodiment:
as shown in fig. 1, the guide ring 220, the sealing cylinder assembly 100, and the clamp ring 230 are sequentially fitted on the central shaft 210. Wherein, the ratio of the longitudinal length of the edge rubber cylinder 20 to the longitudinal length of the middle rubber cylinder 10 is 1: 1.3. The folded protection ring 30 of the sealant cartridge assembly 100 is tightly attached to the guide ring 220 or the compression ring 230. The guide ring 220 is fixed and the compression ring 230 is movable in the axial direction of the central shaft 210. As shown in fig. 3, when the packer 200 is set, the compression ring 230 presses the side packing element 20 under the action of thrust, so as to drive the middle packing element 10 and the side packing element 20 to deform synchronously, and completely block the annular space between the casing 300 and the central shaft 210. During this process, the two folded guard rings 30 are inflated, but remain fully wrapped around the shoulders of the edge dam 20.
In the invention, the sealant barrel assembly 100 adopts a three-section compression type sealant barrel, and comprises a middle sealant barrel 10 and side sealant barrels 20 symmetrically arranged at two ends of the middle sealant barrel 10, wherein the middle sealant barrel 10 is used as a main sealing element, and the side sealant barrels 20 are used as secondary sealing elements. Guide rings 210 and a pressing ring 230 are arranged on two sides of the sealing rubber barrel assembly 100, the pressing ring 230 pushes and compresses the sealing rubber barrel assembly 100, the middle rubber barrel 10 and the side rubber barrel 20 deform simultaneously, and an annular space between the central shaft 210 and the sleeve 300 is plugged. Meanwhile, the polymer fiber reinforced edge rubber cylinder 20 is matched with the folding protection ring 30 and the anti-protruding protection ring 40 to control the deformation of the edge rubber cylinder 20, improve the contact stress between the edge rubber cylinder 20 and the sleeve 300 and realize effective sealing under the working condition of high temperature and high pressure.
The present invention is not limited to the above embodiments, and in particular, various features described in different embodiments can be arbitrarily combined with each other to form other embodiments, and the features are understood to be applicable to any embodiment except the explicitly opposite descriptions, and are not limited to the described embodiments.
Claims (10)
1. The utility model provides a sealed glue barrel assembly which characterized in that, sealed glue barrel assembly includes well packing element and two limit packing elements, well packing element with the limit packing element all is tube-shape and coaxial setting, two limit packing element 20 set up symmetrically in the both ends of well packing element, and two the limit packing element respectively with the both ends looks butt of well packing element.
2. The sealant cartridge assembly of claim 1 wherein said cartridge wall of said edge cartridge is comprised of a woven fiber mesh and rubber coated over said woven fiber mesh.
3. The sealant cartridge assembly of claim 2 wherein a plurality of the woven fiber nets are disposed in the wall of the rim sealant cartridge, the woven fiber nets are cylinders with a grid-like structure, and the woven fiber nets are sleeved layer by layer from inside to outside along the radial direction of the rim sealant cartridge.
4. The sealant cartridge assembly of claim 3 wherein said fiber mesh is a mesh structure woven by a plurality of circumferential fibers and a plurality of longitudinal fibers, said circumferential fibers being concentric and circular and being disposed along a circumferential direction of said edge sealant cartridge, said plurality of longitudinal fibers being sequentially spaced along an axial direction of said edge sealant cartridge, said longitudinal fibers being disposed along an axial direction of said edge sealant cartridge, said plurality of longitudinal fibers being sequentially spaced along a circumferential direction of said edge sealant cartridge.
5. The sealant cartridge assembly of claim 4 wherein said circumferential fibers have a wire diameter greater than a wire diameter of said longitudinal fibers.
6. The sealant cartridge assembly of claim 1 wherein each of said end faces of said middle cartridge is conically tapered to said end faces of said two side cartridges.
7. The sealant cartridge assembly of claim 6 wherein the end face of the middle rubber cartridge is a tapered surface that gradually decreases in diameter in an axially outward direction of the middle rubber cartridge, and the end face of the side rubber cartridge facing the end of the middle rubber cartridge is also a tapered surface and is aligned with the end face of the middle rubber cartridge.
8. The sealant cartridge assembly of claim 1 wherein said side cartridge has a folded protective ring disposed on an end thereof opposite said center cartridge, said folded protective ring being made of ductile metal, said end of said other end of said side cartridge being flat, said folded protective ring having a side surface abutting said end of said side cartridge, an outer edge of said folded protective ring extending along a side wall of said side cartridge to form a stop flange.
9. The sealant cartridge assembly of claim 8 wherein said other end of said side sealant cartridge facing away from said middle sealant cartridge is provided with an anti-protrusion protection ring, an installation ring groove is formed on an inner wall of said other end, said anti-protrusion protection ring is embedded in said installation ring groove, and a side surface of said anti-protrusion protection ring abuts against a side surface of said folding protection ring.
10. A packer is characterized by at least comprising a central shaft, a guide ring, a pressing ring and the sealant barrel assembly as claimed in any one of claims 1 to 9, wherein the guide ring, the sealant barrel assembly and the pressing ring are sequentially sleeved outside the central shaft along the axial direction of the central shaft, the guide ring and the pressing ring are respectively abutted against two ends of the sealant barrel assembly, the guide ring is fixedly connected with the central shaft, and the pressing ring, the side sealant barrel and the middle sealant barrel are respectively in sliding fit with the central shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011349803.XA CN114542006A (en) | 2020-11-26 | 2020-11-26 | Sealed cartridge assembly and packer of gluing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011349803.XA CN114542006A (en) | 2020-11-26 | 2020-11-26 | Sealed cartridge assembly and packer of gluing |
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| Publication Number | Publication Date |
|---|---|
| CN114542006A true CN114542006A (en) | 2022-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011349803.XA Pending CN114542006A (en) | 2020-11-26 | 2020-11-26 | Sealed cartridge assembly and packer of gluing |
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| Country | Link |
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| CN (1) | CN114542006A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116624123A (en) * | 2023-06-25 | 2023-08-22 | 阜宁县宏达石化机械有限公司 | Underground sealing rubber cylinder for oil and gas field |
| WO2024107352A1 (en) * | 2022-11-17 | 2024-05-23 | Saudi Arabian Oil Company | Woven sleeves and related methods of constraining a well tool |
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| CN105909206A (en) * | 2016-06-23 | 2016-08-31 | 宝鸡市元亨石油设备有限责任公司 | Closed compressed rubber sleeve sealing unit |
| CN106894784A (en) * | 2017-03-07 | 2017-06-27 | 中国石油集团渤海钻探工程有限公司 | HTHP packer and heat resisting and pressure resisting packing element |
| CN206845143U (en) * | 2017-06-05 | 2018-01-05 | 大庆市晟威机械制造有限公司 | High pressure resistant hydraulic packer |
| CN111622708A (en) * | 2020-04-30 | 2020-09-04 | 中国海洋石油集团有限公司 | Airtight production packer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2024107352A1 (en) * | 2022-11-17 | 2024-05-23 | Saudi Arabian Oil Company | Woven sleeves and related methods of constraining a well tool |
| US12209470B2 (en) | 2022-11-17 | 2025-01-28 | Wireless Instrumentation Systems AS | Woven sleeves and related methods of constraining a well tool |
| CN116624123A (en) * | 2023-06-25 | 2023-08-22 | 阜宁县宏达石化机械有限公司 | Underground sealing rubber cylinder for oil and gas field |
| CN116624123B (en) * | 2023-06-25 | 2024-02-02 | 阜宁县宏达石化机械有限公司 | Underground sealing rubber cylinder for oil and gas field |
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