CN104389547A - Novel extruding rubber tube for built-in metal component and processing process of novel extruding rubber tube - Google Patents
Novel extruding rubber tube for built-in metal component and processing process of novel extruding rubber tube Download PDFInfo
- Publication number
- CN104389547A CN104389547A CN201410450414.4A CN201410450414A CN104389547A CN 104389547 A CN104389547 A CN 104389547A CN 201410450414 A CN201410450414 A CN 201410450414A CN 104389547 A CN104389547 A CN 104389547A
- Authority
- CN
- China
- Prior art keywords
- packing element
- ring block
- baffle ring
- ring
- hardware
- 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.)
- Granted
Links
- 239000002184 metal Substances 0.000 title claims abstract description 51
- 238000012545 processing Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title abstract description 10
- 238000012856 packing Methods 0.000 claims abstract description 93
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 238000005516 engineering process Methods 0.000 claims description 8
- 238000007596 consolidation process Methods 0.000 claims description 3
- 238000005486 sulfidation Methods 0.000 claims description 3
- 238000005987 sulfurization reaction Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000000306 component Substances 0.000 description 8
- 238000007789 sealing Methods 0.000 description 7
- 239000003921 oil Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/128—Packers; Plugs with a member expanded radially by axial pressure
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)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a novel extruding rubber tube for a built-in metal component. The novel extruding rubber tube comprises a metal component (1), a rubber tube (2), an upper stop ring (3) and a lower stop ring (4), wherein a cylindrical die cavity (6) coincident with the center line of the rubber tube (2) is arranged in the rubber tube (2); the top of an upper annular block (7) and the bottom of a lower annular block (8) are provided with a plurality of open grooves (12) convenient for liquid rubber to flow; the open grooves (12) are uniformly distributed in the upper annular block (7) and the lower annular block (8); V-shaped convex edges (13) are arranged on the cylinder surfaces of the upper annular block (7) and the lower annular block (8) and in positions among rings in a mode of avoiding the open grooves (12); the metal component (1) is arranged in the die cavity (6) in a sheathing way; and rubber mixed and heated to the temperature to be vulcanized is poured into the die cavity (6). The invention also discloses a processing process. The novel extruding rubber tube has the beneficial effects that the rebound resilience is good; the use is convenient; the service life is longer; the repeated use for many times can be realized; and the packing effect is good.
Description
Technical field
The present invention relates to extruding packing element and the processing technology thereof of carrying out the technology, particularly a kind of novel built-in metal component of annular space packing in oil gas field brill completion or underground work process.
Background technology
Oil gas field bores completion or underground work process often needs to carry out annular space packing, can block the fluid of annular space like this from packing process, thus reach the effect of choked flow.Carry out in drilling process annular space packing be in order to reach bore meet hydraulic oil air-flow time by the packing of hydraulic oil air-flow in down-hole nearly drill bit place, thus reach the effect of Underwell anti-injection, downhole blow-out preventer is the main device of Underwell anti-injection system.In Oil/gas Well production operation process, carry out annular space packing is in order to gas channel or fracturing fluid passage or waterflood path are carried out separation spacing, thus reaching the effect of oil production by layer gas or zonal pressure or seperated layer water injection, isolating tool conventional is on packer.Be downhole blow-out preventer again or packer all needs to carry out the packing of annular space, and the core component realizing annular space packing is packing element.
At present, according to the difference of the setting mode of packing element, its sealing means can be divided into following four classes: (1) self-sealing: rely on the interference of packing element external diameter and casing inner diameter and operting differential pressure to realize sealing.(2) compression: by axial force compression packing element, packing element external diameter is become and realizes greatly sealing.(3) expanding: adopt radial load to act on packer accessory inner chamber, packer accessory enlarged outside diameter realizes sealing.(4) combined type: be combined realized sealing by self-sealing, compression, expanding.
As a rule, packing element adopts setting comparatively common of compression, but compression type glue barrel can the annular clearance of packing less.Expansion packing element can excluder ring empty gap comparatively large, but expansion packing element is structurally usually long.The expansion of expansion glue tube often needs to squeeze into high-pressure fluid by well head and enters in packing element packing element just can be made to expand, compression then has multiple form, can adopt and squeeze into highly pressurised liquid becomes to compress after piston axially-movable packing element two ends baffle ring extruding packing element expansion through hydraulic conversion, or employing is transferred tubing string extruding packing element expansion or uses electro-mechanical system extrusion expansion.Under some operating mode, not only we need not changing under the prerequisite of boring completion or operation technique flow process (can not adopt suppress expansion fashion) but also the annular clearance needing packing larger, at this moment traditional gum extruding packing element is just no longer applicable, and force us to find new packing element design scheme, this patent adopts and is implanted into hardware at traditional packing element, rubber is made to have bone, packing element can have the characteristic of rubber and metal simultaneously, soft middle band is firm, its packing ability can be promoted to some extent, especially change more greatly the operating mode of space system in packing under, larger performance boost is had compared to the packing element of traditional gum material.
Summary of the invention
The object of the invention is to the shortcoming overcoming prior art, provide a kind of and can bear that larger pressure reduction, resilience are good, easy to use, longer service life, can repeatedly use, the extruding packing element of novel built-in metal component that packing is effective and processing technology thereof.
Object of the present invention is achieved through the following technical solutions: a kind of extruding packing element of novel built-in metal component, it comprises hardware, packing element, upper baffle ring and lower baffle ring, described upper baffle ring and the bottom of lower baffle ring are provided with the cannelure that cross section is inverted T-shaped, be provided with in described packing element in post shapes and the die cavity overlapped with packing element center line, packing element upper, the all T-shaped shape in lower two ends, described hardware is by upper ring block, lower ring block and metal ribs composition, upper ring block is parallel to lower ring block and arranges, multiple metal ribs distributed ringwise is provided with between upper ring block and lower ring block, the wall thickness of each metal ribs is all less than ring block and lower ring block, the contact position of each metal ribs and upper ring block and lower ring block is provided with chamfering, upper ring block and lower ring block are often being provided with fillet between adjacent two metal ribs, the top of upper ring block and the bottom of lower ring block be provided with multiple be convenient to liquid rubber circulation fluting, fluting is evenly distributed on ring block and lower ring block, on the cylinder of upper ring block and lower ring block and stagger fluting interannular be provided with V-arrangement fin, described hardware is inserted in die cavity, described packing element upper, lower two ends are stuck in the cannelure of upper baffle ring and lower baffle ring, and the V-arrangement fin on upper ring block and lower ring block is separately positioned in the cannelure of upper baffle ring and lower baffle ring, the rubber being mixed and heated to and being about to curing temperature is poured in die cavity, rubber and hardware are consolidated.
The quantity of described metal ribs is 3 ~ 400, and metal ribs is evenly distributed between upper ring block and lower ring block along the circumferencial direction of upper ring block.
The radius of described fillet is greater than 0.5mm.
Described metal ribs wall thickness is 0.5 ~ 3mm.
The degree of depth of described fluting is 0.5 ~ 9mm, and the quantity of fluting is 3 ~ 100, and staggers in the position of fluting place bus and the position of metal ribs.
Described chamfering is 1 ~ 30 °.
Described V-arrangement fin also can be U-shaped fin.
A processing technology for the extruding packing element of novel built-in metal component, it comprises the following steps:
S1, first hardware is inserted in die cavity;
The assembling of S2, packing element and hardware and upper baffle ring and lower baffle ring, to the upper/lower terminal radial compression of packing element, the cannelure of upper baffle ring and lower baffle ring is sent into after compression, when V-arrangement fin is in the hole entering baffle ring completely, cancel constraint, now, the left and right resilience of V-arrangement fin, V-arrangement fin props up the port of upper baffle ring and lower baffle ring respectively, thus achieves the assembling of packing element and hardware and upper baffle ring and lower baffle ring;
The consolidation of S3, hardware and rubber, the rubber being mixed and heated to and will having reached curing temperature is poured in die cavity, rubber heats to die cavity, rubber keeps curing temperature to continue sulfuration in die cavity, and be consolidated with hardware gradually in sulfidation, thus achieve the processing of extruding packing element.
The present invention has the following advantages: (1) upper ring block of the present invention and lower ring block are often being provided with fillet between adjacent two metal ribs, thus avoids hardware and occur crackle, extends the application life of hardware.(2) shape of rib of the present invention can ensure that rubber all can not depart from hardware when bearing large pressure reduction up and down.(3) packing element of the present invention is when by upper baffle ring and lower baffle ring extruding, hardware drives rubber to expand together, it is tightr that this makes packing element be connected with upper baffle ring and lower baffle ring, when extruding bearing upper and lower pressure reduction simultaneously, relative displacement can not be there is between the contact surface of packing element and upper baffle ring and lower baffle ring, thus reach packing effect, ensure that the safe and reliable of packing.(4) after upper and lower pressure differential collapses and when upper baffle ring and lower baffle ring playback, V-arrangement fin is pullled hardware and made packing element restore, and this makes packing element safety durable more, has the advantages that resilience is good, and extend and extrude application life of packing element.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiments of the invention one;
Fig. 2 is the I portion partial enlarged view of Fig. 1;
Fig. 3 is the structural representation of upper baffle ring in Fig. 1;
Fig. 4 is the structural representation of hardware in Fig. 1;
Fig. 5 is the A-A sectional view of Fig. 4;
Fig. 6 is the C-C sectional view of Fig. 4;
Fig. 7, Fig. 8 and Fig. 9 are the radial cross-sectional shape of metal ribs;
Figure 10, Figure 11 and Figure 12 are the circumferential cross-section shape of metal ribs;
Figure 13 is the structural representation of embodiments of the invention two;
Figure 14 is the II portion partial enlarged view of Figure 13;
Figure 15 is the structural representation of embodiments of the invention three;
Figure 16 is the III portion partial enlarged view of Figure 15;
In figure, 1-hardware, 2-packing element, 3-upper baffle ring, 4-lower baffle ring, 5-cannelure, 6-die cavity, the upper ring block of 7-, ring block under 8-, 9-metal ribs, 10-chamfering, 11-fillet, 12-slots, 13-V shape fin, 14-U shape fin, 15-pin-and-hole, 16-pin.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described, and protection scope of the present invention is not limited to the following stated:
Embodiment one: as depicted in figs. 1 and 2, a kind of extruding packing element of novel built-in metal component, it comprises hardware 1, packing element 2, upper baffle ring 3 and lower baffle ring 4, described upper baffle ring 3 and the bottom of lower baffle ring 4 are provided with the cannelure 5 that cross section is inverted T-shaped, be provided with in post shapes in described packing element 2 and the die cavity 6 overlapped with packing element 2 center line, the all T-shaped shape of upper/lower terminal of packing element 2, described hardware 1 is made up of upper ring block 7, lower ring block 8 and metal ribs 9, and upper ring block 7 is parallel to lower ring block 8 and arranges.As Figure 4-Figure 6, multiple metal ribs 9 distributed ringwise is provided with between upper ring block 7 and lower ring block 8, the shape of rib can ensure that rubber all can not depart from hardware 1 when bearing large pressure reduction up and down, metal ribs 9 wall thickness is 0.5 ~ 3mm, the wall thickness of each metal ribs 9 is all less than ring block 7 and lower ring block 8, each metal ribs 9 is provided with chamfering 10 with the contact position of upper ring block 7 and lower ring block 8, chamfering 10 is 1 ~ 30 °, upper ring block 7 and lower ring block 8 are often being provided with fillet 11 between adjacent two metal ribs 9, the radius of fillet 11 is greater than 0.5mm.As Figure 4-Figure 6, the top of upper ring block 7 and the bottom of lower ring block 8 be provided with multiple be convenient to liquid rubber circulation fluting 12, the degree of depth of fluting 12 is 0.5 ~ 9mm, the quantity of fluting 12 is 3 ~ 100, and stagger in the fluting position of 12 place buses and the position of metal ribs 9, fluting 12 is evenly distributed on ring block 7 and lower ring block 8, and on the cylinder of upper ring block 7 and lower ring block 8 and the interannular of the fluting 12 that staggers is provided with V-arrangement fin 13, V-arrangement fin 13 stands upside down and arranges.As depicted in figs. 1 and 2, hardware 1 is inserted in die cavity 6, described packing element 2 upper, lower two ends are stuck in the cannelure 5 of upper baffle ring 3 and lower baffle ring 4, and the V-arrangement fin 13 on upper ring block 7 and lower ring block 8 is separately positioned in the cannelure 5 of upper baffle ring 3 and lower baffle ring 4, the rubber being mixed and heated to and being about to curing temperature is poured in die cavity 6, rubber and hardware 1 are consolidated, when packing element 2 is extruded by upper baffle ring 3 and lower baffle ring 4, hardware 1 drives rubber to expand together, it is tightr that this makes packing element 2 be connected with upper baffle ring 3 and lower baffle ring 4, when extruding bearing upper and lower pressure reduction simultaneously, relative displacement can not be there is between the contact surface of packing element 2 and upper baffle ring 3 and lower baffle ring 4, thus reach packing effect, ensure that the safe and reliable of packing.
The quantity of described metal ribs 9 is 3 ~ 400, and metal ribs 9 is evenly distributed between upper ring block 7 and lower ring block 8 along the circumferencial direction of upper ring block 7.
A processing technology for the extruding packing element of novel built-in metal component, it comprises the following steps:
S1, first hardware is inserted in die cavity 6;
The assembling of S2, packing element and hardware and upper baffle ring and lower baffle ring, to the upper/lower terminal radial compression of packing element 2, the cannelure 5 of upper baffle ring 3 and lower baffle ring 4 is sent into after compression, when V-arrangement fin 13 is in the hole entering baffle ring completely, cancel constraint, now, V-arrangement fin about 13 resilience, V-arrangement fin 13 props up the port of upper baffle ring 3 and lower baffle ring 4 respectively, thus achieves the assembling of packing element and hardware and upper baffle ring and lower baffle ring;
The consolidation of S3, hardware and rubber, the rubber being mixed and heated to and will reaching curing temperature is poured in die cavity 6, rubber heats to die cavity, rubber keeps curing temperature to continue sulfuration in die cavity, and be consolidated with hardware 1 gradually in sulfidation, thus achieve the processing of extruding packing element.
Embodiment two: as shown in Figure 13 and Figure 14, the distinctive points of the present embodiment and embodiment one is: on the cylinder of upper ring block 7 and lower ring block 8 and the interannular of the fluting 12 that staggers is provided with in inverted U-shaped fin 14, the assembly method of U-shaped fin is: first at the port grooving of upper baffle ring 3 and lower baffle ring 4, the quantity of groove is consistent with the U-shaped fin 14 in cross-sectional sizes and hardware 1, after U-shaped fin 14 enters cannelure 5 by this groove, rotating metallic component 1, make U-shaped fin 14 by upper baffle ring 3 and lower baffle ring 4 port-stuck, thus achieve the assembling of U-shaped fin, when after pressure differential collapses and when playbacking when upper baffle ring 3 and lower baffle ring 4, U-shaped fin 14 is pullled hardware 1 and packing element 2 is restored.
Embodiment three: as shown in Figure 15 and Figure 16, the present embodiment is with the distinctive points of embodiment one: upper baffle ring 3 is provided with on the cylinder of lower baffle ring 4 pin-and-hole 15 be communicated with cannelure 5, pin 16 to be arranged in pin-and-hole 15 and successively through packing element 2 and upper ring block 7, after upper and lower pressure differential collapses and when upper baffle ring 3 and lower baffle ring 4 playback, pin 16 is pullled hardware 1 and packing element 2 is restored, obtained extruding packing element safety durable more.In addition, the resilience of packing element 2 is that upper lower baffle ring drives the resilience of hardware 1 by pin 16, drives rubber resilience more safe and reliable than upper and lower baffle ring.
Claims (8)
1. the extruding packing element of a novel built-in metal component, it is characterized in that: it comprises hardware (1), packing element (2), upper baffle ring (3) and lower baffle ring (4), described upper baffle ring (3) and the bottom of lower baffle ring (4) are provided with the cannelure (5) that cross section is inverted T-shaped, be provided with in post shapes in described packing element (2) and the die cavity (6) overlapped with packing element (2) center line, packing element (2) upper, the all T-shaped shape in lower two ends, described hardware (1) is by upper ring block (7), lower ring block (8) and metal ribs (9) composition, upper ring block (7) is parallel to lower ring block (8) and arranges, multiple metal ribs (9) distributed ringwise is provided with between upper ring block (7) and lower ring block (8), the wall thickness of each metal ribs (9) is all less than ring block (7) and lower ring block (8), each metal ribs (9) is provided with chamfering (10) with the contact position of upper ring block (7) and lower ring block (8), upper ring block (7) and lower ring block (8) are gone up and are positioned at and be often provided with fillet (11) between adjacent two metal ribs (9), the top of upper ring block (7) and the bottom of lower ring block (8) be provided with multiple be convenient to liquid rubber circulation fluting (12), fluting (12) is evenly distributed on ring block (7) and lower ring block (8), on the cylinder of upper ring block (7) and lower ring block (8) and the interannular of the fluting (12) that staggers is provided with V-arrangement fin (13), described hardware (1) is inserted in die cavity (6), described packing element (2) upper, lower two ends are stuck in the cannelure (5) of upper baffle ring (3) and lower baffle ring (4), and the V-arrangement fin (13) on upper ring block (7) and lower ring block (8) is separately positioned in the cannelure (5) of upper baffle ring (3) and lower baffle ring (4), the rubber being mixed and heated to and being about to curing temperature is poured in die cavity (6), rubber and hardware (1) are consolidated.
2. the extruding packing element of a kind of novel built-in metal component according to claim 1, it is characterized in that: the quantity of described metal ribs (9) is 3 ~ 400, and metal ribs (9) is evenly distributed between upper ring block (7) and lower ring block (8) along the circumferencial direction of upper ring block (7).
3. the extruding packing element of a kind of novel built-in metal component according to claim 1, is characterized in that: the radius of described fillet (11) is greater than 0.5mm.
4. the extruding packing element of a kind of novel built-in metal component according to claim 1, is characterized in that: described metal ribs (9) wall thickness is 0.5 ~ 3mm.
5. the extruding packing element of a kind of novel built-in metal component according to claim 1, it is characterized in that: the degree of depth of described fluting (12) is 0.5 ~ 9mm, the quantity of fluting (12) is 3 ~ 100, and staggers in the position of fluting (12) place bus and the position of metal ribs (9).
6. the extruding packing element of a kind of novel built-in metal component according to claim 1, is characterized in that: described chamfering (10) is 1 ~ 30 °.
7. the extruding packing element of a kind of novel built-in metal component according to claim 1, is characterized in that: described V-arrangement fin (13) also can be U-shaped fin (14).
8. the processing technology of the extruding packing element of a kind of novel built-in metal component according to claim 1, is characterized in that: it comprises the following steps:
S1, first hardware is inserted in die cavity (6);
The assembling of S2, packing element and hardware and upper baffle ring and lower baffle ring, to the upper/lower terminal radial compression of packing element (2), the cannelure (5) of upper baffle ring (3) and lower baffle ring (4) is sent into after compression, when V-arrangement fin (13) is in the hole entering baffle ring completely, cancel constraint, now, V-arrangement fin (13) left and right resilience, V-arrangement fin (13) props up the port of upper baffle ring (3) and lower baffle ring (4) respectively, thus achieves the assembling of packing element and hardware and upper baffle ring and lower baffle ring;
The consolidation of S3, hardware and rubber, the rubber being mixed and heated to and will reaching curing temperature is poured in die cavity (6), rubber heats to die cavity, rubber keeps curing temperature to continue sulfuration in die cavity, and be consolidated with hardware (1) gradually in sulfidation, thus achieve the processing of extruding packing element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410450414.4A CN104389547B (en) | 2014-09-05 | 2014-09-05 | The extruding packing element of a kind of built-in metal component and processing technique thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410450414.4A CN104389547B (en) | 2014-09-05 | 2014-09-05 | The extruding packing element of a kind of built-in metal component and processing technique thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104389547A true CN104389547A (en) | 2015-03-04 |
| CN104389547B CN104389547B (en) | 2016-08-31 |
Family
ID=52607496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410450414.4A Active CN104389547B (en) | 2014-09-05 | 2014-09-05 | The extruding packing element of a kind of built-in metal component and processing technique thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104389547B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931025A (en) * | 2017-12-19 | 2019-06-25 | 中石化石油工程技术服务有限公司 | A kind of compression rubber downhole drill preventer |
| CN110500059A (en) * | 2018-05-18 | 2019-11-26 | 中国石油化工股份有限公司 | A kind of amplificate packer packing element of snapback |
| CN110630210A (en) * | 2019-10-16 | 2019-12-31 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Loess layer leakage-proof plugging tool and use method thereof |
| CN112339199A (en) * | 2020-10-14 | 2021-02-09 | 山东聊城富锋汽车部件有限公司 | Manufacturing process of valve oil seal framework with good sealing performance |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201723194U (en) * | 2010-04-21 | 2011-01-26 | 中国石油化工股份有限公司 | High-temperature and high-pressure metal skeleton sealing rubber barrel |
| CN201874515U (en) * | 2010-12-02 | 2011-06-22 | 重庆智延科技发展有限公司 | Compression type packer sealing cylinder used in oil and gas field |
| CN102787822A (en) * | 2011-05-20 | 2012-11-21 | 贵阳高新隆硕氟材料有限公司 | Large-radian arched sealing rubber barrel |
| CN102787821A (en) * | 2011-05-20 | 2012-11-21 | 贵阳高新隆硕氟材料有限公司 | Plane arch-shaped seal rubber drum |
| CN202266233U (en) * | 2011-09-01 | 2012-06-06 | 中国石油化工股份有限公司 | Compression packer rubber |
| CN103527135B (en) * | 2013-10-18 | 2016-08-24 | 西南石油大学 | Double-cylinder compression packer |
-
2014
- 2014-09-05 CN CN201410450414.4A patent/CN104389547B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931025A (en) * | 2017-12-19 | 2019-06-25 | 中石化石油工程技术服务有限公司 | A kind of compression rubber downhole drill preventer |
| CN110500059A (en) * | 2018-05-18 | 2019-11-26 | 中国石油化工股份有限公司 | A kind of amplificate packer packing element of snapback |
| CN110500059B (en) * | 2018-05-18 | 2021-06-08 | 中国石油化工股份有限公司 | Expansion packer rubber barrel capable of retracting rapidly |
| CN110630210A (en) * | 2019-10-16 | 2019-12-31 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Loess layer leakage-proof plugging tool and use method thereof |
| CN110630210B (en) * | 2019-10-16 | 2023-12-01 | 中国石油天然气集团有限公司 | Leakage-proof plugging tool for yellow soil layer and using method thereof |
| CN112339199A (en) * | 2020-10-14 | 2021-02-09 | 山东聊城富锋汽车部件有限公司 | Manufacturing process of valve oil seal framework with good sealing performance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104389547B (en) | 2016-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102071900B (en) | Self-constant pressure expanding open hole packer | |
| EP3088654A1 (en) | Annular barrier with expansion unit | |
| CN103046893B (en) | Composite rubber sleeve packer | |
| CN104389547A (en) | Novel extruding rubber tube for built-in metal component and processing process of novel extruding rubber tube | |
| AU2013285209B2 (en) | A tubular connection | |
| CN109441399B (en) | Bridge plug capable of flushing sand | |
| US20030042028A1 (en) | High pressure high temperature packer system | |
| CN110617026B (en) | Downhole operation device and method | |
| CN103775020A (en) | Combination rubber cylinder packer | |
| CN205858228U (en) | Differential plugging while drilling circulating valve | |
| CN102839941B (en) | Telescopic purpose lower sleeve slurry filling device | |
| CN205025377U (en) | self-adaptive reducing casing centralizer | |
| CN103742099A (en) | Perforation, fracturing, sealing and separating device | |
| CN102937008B (en) | Top multistage pressure-bearing expansion pipe expansion construction device | |
| CN109882114B (en) | Zero-pollution well cementing tool for oil well production layer and process method | |
| CN115522881B (en) | Constant-pressure constant-torsion drilling tool | |
| CN102937009B (en) | Top pressure bearing expansion pipe construction operation method | |
| CN203308446U (en) | Multi-stage fracturing sliding sleeve free from opening in midway | |
| CN203022683U (en) | Composite rubber sleeve packer | |
| CN203702076U (en) | Combined rubber sleeve packer | |
| CN211201861U (en) | Packer | |
| CN110593802B (en) | Metal sealing packing device | |
| CN202937212U (en) | Top multistage pressure bearing type expandable construction device for expandable pipes | |
| CN208152979U (en) | A kind of bi-directional slip formula external casing packer | |
| CN108590596B (en) | Vertical well layering sand control pipe column and sand control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |