CN113236178A - High-temperature-resistant and pressure-resistant packer for oil drilling - Google Patents
High-temperature-resistant and pressure-resistant packer for oil drilling Download PDFInfo
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- CN113236178A CN113236178A CN202110781620.3A CN202110781620A CN113236178A CN 113236178 A CN113236178 A CN 113236178A CN 202110781620 A CN202110781620 A CN 202110781620A CN 113236178 A CN113236178 A CN 113236178A
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- packer
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- 238000005553 drilling Methods 0.000 title claims abstract description 17
- 229920001971 elastomer Polymers 0.000 claims abstract description 43
- 239000005060 rubber Substances 0.000 claims abstract description 37
- 230000001681 protective effect Effects 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 239000006229 carbon black Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims description 3
- 229920001973 fluoroelastomer Polymers 0.000 claims description 3
- 150000002978 peroxides Chemical class 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 239000012744 reinforcing agent Substances 0.000 claims description 3
- 238000004227 thermal cracking Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000007790 scraping Methods 0.000 abstract 1
- 238000004873 anchoring Methods 0.000 description 10
- 238000012856 packing Methods 0.000 description 9
- 239000000806 elastomer Substances 0.000 description 6
- 238000009826 distribution Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920002681 hypalon Polymers 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000003678 scratch resistant effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
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- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
-
- 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
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Dispersion Chemistry (AREA)
- Piles And Underground Anchors (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a high-temperature-resistant and pressure-resistant packer for oil drilling, which relates to the technical field of oil exploitation and comprises a first assembling pipe, wherein the lower end of the first assembling pipe is fixedly connected with a rubber cylinder, the lower end of the rubber cylinder is fixedly connected with a second assembling pipe, the lower end of the second assembling pipe is connected with a third assembling pipe in a sliding manner, the upper end of the first assembling pipe is connected with a pressure applying pipe in a sliding manner, the bottom end of the pressure applying pipe is provided with a pressure-bearing deformation member, the pressure-bearing deformation member sequentially penetrates through the first assembling pipe and the rubber cylinder and extends into the second assembling pipe, and the outer side of the pressure-bearing deformation member is provided with a plurality of support rings which are abutted against one side of the inner wall of the rubber cylinder. According to the invention, the protective sleeve is sleeved on the outer side of the first assembling pipe, the protective sleeve has good scraping resistance and heat resistance, the support ring is arranged between the pressure-bearing deformation member and the rubber sleeve, and the support ring has deformability, so that the rubber sleeve can be attached to the support ring, and the sealing property of the rubber sleeve can be improved.
Description
Technical Field
The invention relates to the technical field of oil exploitation, in particular to a high-temperature-resistant and pressure-resistant packer for oil drilling.
Background
The packer indicates to be connected on the tubular column in the pit for packing off oil pipe and oil gas well casing or bore hole wall of a well annular space's downhole tool, and after design depth, the packer can make the packing spare on the packer take place the inflation through modes such as hydraulic drive, thereby plays the effect of packing off, and after the inflation, packer self is fixed through frictional force and the wall of a well, thereby is spacing to self.
Through retrieval, the Chinese patent discloses a high-temperature and high-pressure resistant oil pipe packer (publication number: CN 104389548B) with bidirectional bearing of a one-way slip, the packer comprises an upper joint and a lower joint which are connected with an oil pipe, and a central pipe is connected between the upper joint and the lower joint in a threaded manner; the middle parts of the upper joint, the lower joint and the central pipe are provided with cavities which are communicated with each other; an upper protection block, an upper cone, an upper rubber cylinder, a middle rubber cylinder, a lower cone and a lower protection block are sequentially arranged at the upper end of the outer side of the central tube from top to bottom; the middle part of the outer side of the central tube is provided with a lower protection block connecting seat and an upper outer sleeve, and the lower part of the outer side of the central tube is provided with a slip seat and a lower outer sleeve.
When the existing packer is used, if the temperature of the use environment is high, the packer can be damaged, and when the packer is used, the packer needs to be anchored with the use environment so as to improve the stability of the packer.
Disclosure of Invention
The invention aims to provide a high-temperature-resistant and pressure-resistant packer for oil drilling and production, which solves the following technical problems:
(1) how to avoid the damage of the outer side of the packer caused by the working environment when the packer is used;
(2) how to improve the stability between the packer and the working environment when in use.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a high temperature resistant pressure-bearing packer for oil drilling, includes first assembly pipe, the lower extreme fixedly connected with packing element of first assembly pipe, the lower extreme fixedly connected with second assembly pipe of packing element, the lower extreme sliding connection of second assembly pipe has third assembly pipe, the upper end sliding connection of first assembly pipe has the pressure application pipe, pressure-bearing deformation member is installed to the bottom of pressure application pipe, pressure-bearing deformation member runs through first assembly pipe and packing element in proper order and extends to the inside of second assembly pipe, fixedly connected with reset spring between the bottom of pressure-bearing deformation member and the third assembly pipe, and the outside of pressure-bearing deformation member installs a plurality of and supports the support ring in packing element inner wall one side, install the anchor between second assembly pipe and the third assembly pipe.
As a further scheme of the invention: the pressure pipe comprises an outer sliding pipe which is connected with the first assembly pipe in a sliding mode, an inner sliding pipe is vertically connected to the bottom end of the outer sliding pipe in a sliding mode, an inner ball seat is formed in the upper surface of the inner sliding pipe, and the upper surface of the inner sliding pipe inclines towards the inner ball seat.
As a further scheme of the invention: the side fixedly connected with two sets of symmetrically distributed fixture blocks of pressure application pipe, spacing ring in the inside fixedly connected with of first assembly pipe, spacing ring's the outside including interior spacing ring cover is established, and the inside of interior spacing ring is seted up two sets of symmetrically distributed's passageway, and the diameter of passageway is greater than the diameter of fixture block, and the passageway is used for passing through the fixture block to convenient slip pressure application pipe.
As a further scheme of the invention: the inner wall of the second assembling pipe is fixedly connected with an inner ring plate, and the outer side of the pressure-bearing deformation member is fixedly connected with a side ring plate sleeved on the outer side of the inner ring plate, so that the second assembling pipe is conveniently pushed to move.
As a further scheme of the invention: the support ring comprises a plurality of groups of elastomers adhered and connected with the pressure-bearing deformation member, the side surface of each group of elastomers is adhered and connected with an inner sliding plate, and a supporting plate is slidably connected between the side surfaces of the adjacent inner sliding plates.
As a further scheme of the invention: and limiting members are arranged at the two ends of the supporting plate and the inner sliding plate and used for preventing the supporting plate from being separated from the inner sliding plate.
As a further scheme of the invention: the number of the elastomers in each group is the same and is 3-5.
As a further scheme of the invention: the lateral wall of packing element is provided with the folding groove that equals with support ring quantity, and a plurality of support ring is located the inside in each folding groove respectively.
As a further scheme of the invention: the side of the first assembling pipe is provided with an annular accommodating groove, and a protective sleeve is sleeved inside the accommodating groove.
As a further scheme of the invention: the lag includes heat-resisting cover, the one end of heat-resisting cover is provided with the convex protrusion piece of a plurality of, and the opposite side of heat-resisting cover sets up the embedded groove that a plurality of and protrusion piece correspond, and the embedded groove is used for accomodating the protrusion piece, through bolt fixed connection between protrusion piece, embedded groove and the first assembly pipe, the lateral wall of first assembly pipe is not run through to the one end of bolt.
As a further scheme of the invention: the heat-resistant sleeve comprises the following raw materials in parts by weight: 50-56 parts of ternary peroxide fluororubber, 8-15 parts of thermal cracking carbon black, 5-9 parts of organic oxide, 3-7 parts of reinforcing agent, 10-15 parts of pottery clay and 0.8-2.3 parts of vulcanizing agent.
As a further scheme of the invention: the anchor includes that first connection lagging and second connect the lagging, first connection lagging and second connect the lagging respectively with second assembly pipe and third assembly pipe fixed connection, fixedly connected with a plurality of elastic rubber that resets between first connection lagging and the second connection lagging.
As a further scheme of the invention: and convex components are arranged on one sides, close to the reset elastic rubber, between the first connecting sleeve plate and the second connecting sleeve plate and used for increasing the anchoring property of the device.
As a further scheme of the invention: the evagination component includes the connecting block with second assembling pipe sliding connection, rotate between the upper surface of connecting block and the first connecting sleeve board and be connected with the dwang, and fixedly connected with elasticity strip between the lower surface of connecting block and the second connecting sleeve board.
As a further scheme of the invention: and 10-20-degree included angles are formed between the rotating rod and the elastic strip and in the vertical direction, so that the rotating rod and the elastic strip are convenient to rotate.
As a further scheme of the invention: an anchoring block is connected to the inside of the connecting block in a sliding mode, one end of the anchoring block extends into the second assembling pipe, and a connecting body is fixedly connected between the anchoring block and the pressure-bearing deformation member.
As a further scheme of the invention: the rubber cylinder, the heat-resistant sleeve, the rotating rod and the reset elastic rubber are made of the same material and are made of any one of chloroprene rubber or chlorosulfonated polyethylene rubber.
The invention has the beneficial effects that:
according to the invention, the protective sleeve is sleeved on the outer side of the first assembling pipe, the protective sleeve has good scratch-resistant and heat-resistant capabilities, so that the device can be protected, the device is prevented from being damaged by high temperature, and the protective sleeve is assembled through the convex blocks and the embedded grooves and is reinforced through the bolts, so that the firmness of the protective sleeve in use can be improved;
meanwhile, a support ring is arranged between the pressure-bearing deformation member and the rubber cylinder, and the support ring has deformability, so that the support ring can be more attached to the rubber cylinder, and the sealing property of the rubber cylinder can be improved;
on the other hand, the pressure-bearing deformation member can drive the second assembling pipe and the third assembling pipe to move after deforming, so that the anchor can be extruded and deformed, the anchor drives the connecting block inside the anchor to be convex after deforming, and the pressure-bearing deformation member can drive the anchor block to move along the connecting block after deforming, so that the anchoring capacity of the anchor can be further improved, and the device is prevented from moving when being used.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a partial side view of the present invention;
FIG. 2 is a partial cross-sectional view of a first assembly tube and a second assembly tube of the present invention;
FIG. 3 is a top view of a support ring of the present invention;
FIG. 4 is a schematic view of the attachment of the protective cover of the present invention;
FIG. 5 is a schematic view of the construction of the anchor of the present invention.
In the figure: 1. pressing a pipe; 2. a first assembly tube; 3. a rubber cylinder; 4. a second assembly tube; 5. a third assembly pipe; 6. an anchor; 7. a pressure-bearing deformation member; 8. a support ring; 9. a return spring; 10. a protective sleeve; 101. an outer sliding tube; 102. an inner sliding tube; 103. an inner ball seat; 201. an inner limiting ring; 202. a clamping block; 401. an inner ring plate; 402. a side ring plate; 81. a supporting plate; 82. an inner slide plate; 83. an elastomer; 51. a heat-resistant sleeve; 52. a protruding block; 53. a groove is embedded; 61. a first connecting sleeve plate; 62. a second connecting sleeve plate; 63. rotating the rod; 64. an elastic strip; 65. connecting blocks; 66. an anchoring block; 67. a linker; 68. and restoring the elastic rubber.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the invention is a high temperature and pressure resistant packer for oil drilling, comprising a first assembling pipe 2, a rubber cylinder 3 fixedly connected to the lower end of the first assembling pipe 2, a second assembling pipe 4 fixedly connected to the lower end of the rubber cylinder 3, a third assembling pipe 5 slidably connected to the lower end of the second assembling pipe 4, a pressure pipe 1 slidably connected to the upper end of the first assembling pipe 2, a pressure-bearing deformation member 7 mounted at the bottom end of the pressure pipe 1, the pressure-bearing deformation member 7 sequentially penetrating the first assembling pipe 2 and the rubber cylinder 3 and extending to the inside of the second assembling pipe 4, a return spring 9 fixedly connected between the bottom of the pressure-bearing deformation member 7 and the third assembling pipe 5, and a plurality of support rings 8 which are propped against one side of the inner wall of the rubber cylinder 3 are arranged on the outer side of the pressure-bearing deformation member 7, and an anchor 6 is arranged between the second assembling pipe 4 and the third assembling pipe 5.
The pressure pipe 1 comprises an outer sliding pipe 101 connected with the first assembling pipe 2 in a sliding manner, the bottom end of the outer sliding pipe 101 is vertically connected with an inner sliding pipe 102 in a sliding manner, an inner ball seat 103 is arranged on the upper surface of the inner sliding pipe 102, and the upper surface of the inner sliding pipe 102 inclines towards the inner ball seat 103.
The fixture block 202 of two sets of symmetric distributions of side fixedly connected with of pressure pipe 1, spacing ring 201 in the inside fixedly connected with of first assembled pipe 2, the outside of spacing ring 201 including interior spacing ring 201 cover is established, and the inside of interior spacing ring 201 sets up the passageway of two sets of symmetric distributions, and the diameter of passageway is greater than the diameter of fixture block 202, and the passageway is used for passing through fixture block 202 to convenient slip pressure pipe 1.
The inner wall of the second assembling pipe 4 is fixedly connected with an inner ring plate 401, and the outer side of the pressure-bearing deformation member 7 is fixedly connected with a side ring plate 402 sleeved on the outer side of the inner ring plate 401, so that the second assembling pipe 4 is conveniently pushed to move.
The support ring 8 includes the elastomer 83 that a plurality of groups and bearing deformation member 7 adhesion are connected, the equal adhesion in side of every group elastomer 83 is connected with interior slide 82, and quantity is 3, equal sliding connection has fagging 81 between the side of adjacent interior slide 82, the both ends of fagging 81 and interior slide 82 all are provided with stop member, be used for preventing fagging 81 and interior slide 82 from taking place the separation, the lateral wall of packing element 3 is provided with the folding groove that equals with support ring 8 quantity, a plurality of support ring 8 is located the inside of each folding groove respectively.
The annular groove of accomodating is seted up to the side of first assembly pipe 2, the inside cover of accomodating the groove is equipped with lag 10, lag 10 includes heat-resistant cover 51, the one end of heat-resistant cover 51 is provided with the convex protruding piece 52 of a plurality of, and the embedded groove 53 that a plurality of and protruding piece 52 correspond is seted up to the opposite side of heat-resistant cover 51, embedded groove 53 is used for accomodating protruding piece 52, through bolt fixed connection between embedded groove 53 and the first assembly pipe 2, the lateral wall of first assembly pipe 2 is not run through to the one end of bolt.
The heat-resistant sleeve 51 comprises the following raw materials in parts by weight: 54 parts of ternary peroxide fluororubber, 9.6 parts of thermal cracking carbon black, 7.2 parts of organic oxide, 5.1 parts of reinforcing agent, 12 parts of pottery clay and 1.7 parts of vulcanizing agent.
The anchor 6 comprises a first connecting sleeve plate 61 and a second connecting sleeve plate 62, the first connecting sleeve plate 61 and the second connecting sleeve plate 62 are respectively fixedly connected with the second assembling pipe 4 and the third assembling pipe 5, a plurality of resetting elastic rubbers 68 are fixedly connected between the first connecting sleeve plate 61 and the second connecting sleeve plate 62, and a convex component is arranged between the first connecting sleeve plate 61 and the second connecting sleeve plate 62 and on one side close to the resetting elastic rubbers 68 and used for increasing the anchoring property of the device.
The evagination component includes the connecting block 65 with 4 sliding connection of second assembly pipe, it is connected with dwang 63 to rotate between the upper surface of connecting block 65 and the first connecting sleeve board 61, and fixedly connected with elastic strip 64 between the lower surface of connecting block 65 and the second connecting sleeve board 62, all be provided with 15 contained angles between dwang 63 and elastic strip 64 and the vertical direction, be used for convenient the rotation, the inside sliding connection of connecting block 65 has anchor block 66, the one end of anchor block 66 extends to the inside of second assembly pipe 4, and fixedly connected with connector 67 between anchor block 66 and the pressure-bearing deformation member 7.
The rubber tube 3, the heat-resistant sleeve 51, the rotating rod 63 and the return elastic rubber 68 are made of the same material and are all made of chloroprene rubber.
The working principle of the invention is as follows:
rotating the pressure pipe 1, moving the fixture block 202 of the pressure pipe 1 out of the channel of the inner limiting ring 201 in the first assembly pipe 2, pressing the pressure-bearing deformation member 7 downwards, and expanding and deforming the pressure-bearing deformation member 7 after being pressed;
after the pressure-bearing deformation member 7 deforms, the elastic body 83 of the support ring 8 drives the support plate 81 and the inner sliding plate 82 to unfold, and after the support plate 81 and the inner sliding plate 82 unfold, the diameter of the support ring 8 expands to increase, so that the rubber cylinder 3 is driven to expand and deform along the folding groove of the rubber cylinder 3, and the rubber cylinder 3 is fixed;
meanwhile, when the position of the third assembly pipe 5 is unchanged, after the pressure-bearing deformation member 7 expands and deforms, the inner ring plate 401 on the side surface of the pressure-bearing deformation member drives the side ring plate 402 to move, so that the second assembly pipe 4 is driven to slide along the third assembly pipe 5, after the second assembly pipe 4 and the third assembly pipe 5 move, the distance between the first connecting sleeve plate 61 and the second connecting sleeve plate 62 in the anchor 6 is driven to decrease, so that the connecting block 65 is driven to bulge outwards by the rotating rod 63, and when the connecting block 65 moves, the elastic strip 64 is driven to deform;
after the pressure-bearing deformation member 7 is deformed, the bottom of the pressure-bearing deformation member is moved by compressing the return spring 9, and the connecting body 67 drives the anchoring block 66 to move along the connecting block 65, so that the anchoring block 66 is moved out of the connecting block 65 for anchoring;
on the other hand, when the protection sleeve 10 needs to be replaced, the protection sleeve 10 is sleeved in the accommodating groove on the outer side of the first assembly pipe 2, the protruding blocks 52 on one side of the protection sleeve 10 are sequentially embedded in the embedding groove 53 on the other side of the protection sleeve 10, and the protruding blocks 52, the embedding groove 53 and the first assembly pipe 2 are fixed through bolts.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (10)
1. A high-temperature-resistant and pressure-resistant packer for oil drilling comprises a first assembling pipe (2), a rubber cylinder (3) is fixedly connected to the lower end of the first assembling pipe (2), a second assembling pipe (4) is fixedly connected to the lower end of the rubber cylinder (3), a third assembling pipe (5) is slidably connected to the lower end of the second assembling pipe (4), a pressure applying pipe (1) is slidably connected to the upper end of the first assembling pipe (2), a pressure-bearing deformation member (7) is installed at the bottom end of the pressure applying pipe (1), and is characterized in that the pressure-bearing deformation member (7) sequentially penetrates through the first assembling pipe (2) and the rubber cylinder (3) and extends into the second assembling pipe (4), a reset spring (9) is fixedly connected between the bottom of the pressure-bearing deformation member (7) and the third assembling pipe (5), and a plurality of support rings (8) abutting against one side of the inner wall of the rubber cylinder (3) are installed on the outer side of the pressure-bearing deformation member (7), an anchor (6) is arranged between the second assembling pipe (4) and the third assembling pipe (5).
2. The high-temperature-resistant and pressure-resistant packer for oil drilling and production as claimed in claim 1, wherein an inner ring plate (401) is fixedly connected to the inner wall of the second assembling pipe (4), and a side ring plate (402) sleeved on the outer side of the inner ring plate (401) is fixedly connected to the outer side of the pressure-bearing deformation member (7).
3. The packer for oil drilling and production with high temperature and pressure resistance according to claim 1, characterized in that the support ring (8) comprises a plurality of groups of elastic bodies (83) adhered and connected with the pressure-bearing deformation member (7), the side surface of each group of elastic bodies (83) is adhered and connected with an inner sliding plate (82), and a bracing plate (81) is slidably connected between the side surfaces of the adjacent inner sliding plates (82).
4. The high temperature and pressure resistant packer for oil drilling and production according to claim 3, wherein both ends of the bracing plate (81) and the inner sliding plate (82) are provided with a limiting member.
5. The packer for oil drilling and production with high temperature and pressure resistance according to claim 4, characterized in that the sidewall of the rubber cylinder (3) is provided with folding grooves with the same number as the support rings (8), and a plurality of support rings (8) are respectively positioned inside each folding groove.
6. The high-temperature-resistant and pressure-resistant packer for oil drilling and production as claimed in claim 1, wherein an annular accommodating groove is formed in the side surface of the first assembling pipe (2), and a protective sleeve (10) is sleeved inside the accommodating groove.
7. The packer for high-temperature-resistant and pressure-resistant oil drilling and production as claimed in claim 6, wherein the protective sleeve (10) comprises a heat-resistant sleeve (51), one end of the heat-resistant sleeve (51) is provided with a plurality of protruding blocks (52), the other side of the heat-resistant sleeve (51) is provided with a plurality of embedded grooves (53) corresponding to the protruding blocks (52), and the protruding blocks (52), the embedded grooves (53) and the first assembling pipe (2) are fixedly connected through bolts.
8. The high temperature and pressure resistant packer for oil drilling and production according to claim 7, wherein the heat resistant sleeve (51) comprises the following raw materials in parts by weight: 50-56 parts of ternary peroxide fluororubber, 8-15 parts of thermal cracking carbon black, 5-9 parts of organic oxide, 3-7 parts of reinforcing agent, 10-15 parts of pottery clay and 0.8-2.3 parts of vulcanizing agent.
9. The packer for oil drilling and production with high temperature and pressure resistance according to claim 1, characterized in that the anchor (6) comprises a first connecting sleeve plate (61) and a second connecting sleeve plate (62), the first connecting sleeve plate (61) and the second connecting sleeve plate (62) are fixedly connected with the second assembly pipe (4) and the third assembly pipe (5), respectively, and a plurality of elastic reset rubbers (68) are fixedly connected between the first connecting sleeve plate (61) and the second connecting sleeve plate (62).
10. The packer for oil drilling and production with high temperature and pressure resistance according to claim 9, characterized in that a convex member is arranged between the first connecting sleeve plate (61) and the second connecting sleeve plate (62) and on one side close to the elastic reset rubber (68).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110781620.3A CN113236178B (en) | 2021-07-12 | 2021-07-12 | High-temperature-resistant and pressure-resistant packer for oil drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110781620.3A CN113236178B (en) | 2021-07-12 | 2021-07-12 | High-temperature-resistant and pressure-resistant packer for oil drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113236178A true CN113236178A (en) | 2021-08-10 |
| CN113236178B CN113236178B (en) | 2021-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110781620.3A Active CN113236178B (en) | 2021-07-12 | 2021-07-12 | High-temperature-resistant and pressure-resistant packer for oil drilling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809975A (en) * | 2022-04-01 | 2022-07-29 | 阜宁县宏达石化机械有限公司 | Packer |
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| CN2046540U (en) * | 1989-04-26 | 1989-10-25 | 中原石油勘探局采油工艺研究所 | Detachable pressure crack bridge plug |
| US6041858A (en) * | 1997-09-27 | 2000-03-28 | Pes, Inc. | High expansion downhole packer |
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| CN205422632U (en) * | 2016-03-16 | 2016-08-03 | 上海尊优自动化设备有限公司 | Cage anchoring slips and packer slip mechanism |
| CN109296334A (en) * | 2018-10-29 | 2019-02-01 | 邓晓亮 | High pressure Multipurpose well lower sealing device resistant to high temperatures |
| WO2020021002A1 (en) * | 2018-07-26 | 2020-01-30 | Zipp Industries Gmbh & Co. Kg | Borehole sealing device |
| CN210068069U (en) * | 2019-04-03 | 2020-02-14 | 中国石油天然气股份有限公司 | Anti-leakage double-sealing well-flushing packer |
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2021
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| CN2046540U (en) * | 1989-04-26 | 1989-10-25 | 中原石油勘探局采油工艺研究所 | Detachable pressure crack bridge plug |
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| CN2923991Y (en) * | 2006-03-24 | 2007-07-18 | 杨朝杰 | Release-free compression type packer |
| CN205422632U (en) * | 2016-03-16 | 2016-08-03 | 上海尊优自动化设备有限公司 | Cage anchoring slips and packer slip mechanism |
| WO2020021002A1 (en) * | 2018-07-26 | 2020-01-30 | Zipp Industries Gmbh & Co. Kg | Borehole sealing device |
| CN109296334A (en) * | 2018-10-29 | 2019-02-01 | 邓晓亮 | High pressure Multipurpose well lower sealing device resistant to high temperatures |
| CN210068069U (en) * | 2019-04-03 | 2020-02-14 | 中国石油天然气股份有限公司 | Anti-leakage double-sealing well-flushing packer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809975A (en) * | 2022-04-01 | 2022-07-29 | 阜宁县宏达石化机械有限公司 | Packer |
| CN114809975B (en) * | 2022-04-01 | 2023-11-17 | 阜宁县宏达石化机械有限公司 | Packer |
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| Publication number | Publication date |
|---|---|
| CN113236178B (en) | 2021-09-17 |
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