CN110735611A - air-tight seal packer sealing assembly - Google Patents
air-tight seal packer sealing assembly Download PDFInfo
- Publication number
- CN110735611A CN110735611A CN201911098768.6A CN201911098768A CN110735611A CN 110735611 A CN110735611 A CN 110735611A CN 201911098768 A CN201911098768 A CN 201911098768A CN 110735611 A CN110735611 A CN 110735611A
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- CN
- China
- Prior art keywords
- packing element
- spacer ring
- bowl
- shaped
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
Abstract
The invention relates to a gas-tight seal packer sealing component, which comprises a middle spacer ring and middle rubber cylinders respectively arranged at two sides of the middle spacer ring, wherein end rubber cylinders are respectively arranged at the outer sides of the two middle rubber cylinders, a end spacer ring is also arranged between the middle rubber cylinder and the end rubber cylinders, and back rings are respectively arranged at the outer sides of the two end rubber cylinders.
Description
Technical Field
The invention relates to the technical field of drilling and production of oil wells in oil fields, in particular to airtight packer sealing components.
Background
At present, along with the continuous expansion and extension in oil exploration and development field, complicated oil gas is deposited, the shared proportion of difficult use reserves is bigger and bigger, to the characteristics of low hole, hypotonic, huge thick oil reservoir, the hot gas injection technology of adopting of viscous crude of will considering to select, need to guarantee that the packer has stronger anti two-way pressure difference ability, however conventional packer seal assembly application effect is not good in high-pressure gas injection environment, seal assembly becomes the short slab, whole resistance to pressure is poor, probably there is the leakage point because of structural problem in the use.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides airtight packer sealing assemblies, and solves the technical problems of poor sealing performance and poor overall pressure resistance of the existing packer sealing assemblies.
The invention is realized by the following technical scheme:
air-tight packer sealing components, including the center spacer ring and the middle rubber tube that is equipped with the center spacer ring both sides respectively, two the outside of middle rubber tube respectively is equipped with end rubber tube, still be equipped with end spacer ring between middle rubber tube and the end rubber tube, two the outside of end rubber tube respectively is equipped with back circle.
, the back ring is bowl-shaped and made of high-strength metal material, and the angle of the outer wall of the bowl-shaped back ring is 20-45 degrees.
, the end rubber tube and the middle rubber tube are bowl-shaped and made of anti-gas explosion polymer materials, and the angle of the outer wall of the bowl-shaped end rubber tube and the outer wall of the bowl-shaped middle rubber tube is 20-45 degrees.
, bosses are arranged on the upper parts of the inner walls of the end rubber cylinder and the middle rubber cylinder.
, the cross section of the boss is semicircular.
, the contact surfaces of the end spacer ring and the end rubber cylinder and the middle rubber cylinder are inclined surfaces, and the contact surfaces of the middle spacer ring and the end rubber cylinder and the middle rubber cylinder are also inclined surfaces.
, the end spacer ring and the middle spacer ring are made of high-strength and high-temperature-resistant composite materials.
Compared with the prior art, the invention has the beneficial effects that:
the airtight packer sealing components provided by the invention adopt a unique structural design and are matched with various materials with gas explosion resistance, high strength and high temperature resistance, so that the packer has strong capability of resisting bidirectional differential pressure in a gas environment and has good pressure bearing performance and stability.
Drawings
FIG. 1 is a schematic structural diagram of types of hermetic seal packer assemblies according to an embodiment of the invention.
In the figure:
1. a back ring; 2. a rubber end cylinder; 3. an end spacer ring; 4. a middle rubber cylinder; 5. a middle spacer ring; 6. and (4) a boss.
Detailed Description
The following examples are presented to illustrate certain embodiments of the invention specifically and should not be construed to limit the scope of the invention the disclosure of the invention may be modified simultaneously from materials, methods and reaction conditions, all of which are intended to fall within the spirit and scope of the invention.
The hermetic seal packer sealing assembly as shown in figure 1 comprises a middle spacer ring 5 and middle rubber cylinders 4 respectively provided with two sides of the middle spacer ring 5, wherein the middle spacer ring 5 is made of a high-strength and high-temperature-resistant composite material, -end rubber cylinders 2 are respectively arranged on the outer sides of the two middle rubber cylinders 4, the end rubber cylinders 2 and the middle rubber cylinders 4 are bowl-shaped and made of a gas explosion-resistant high polymer material, the outer wall angles of the bowl-shaped end rubber cylinders and the bowl-shaped middle rubber cylinders are 20-45 degrees, the hardness of the end rubber cylinders 2 is 88-92DURO, the hardness of the middle rubber cylinders 4 is 73-76DURO, bosses 6 are arranged on the upper portions of the inner walls of the end rubber cylinders 2 and the middle rubber cylinders 4, the cross sections of the bosses 6 are semi-circular and have a radius of 3.18mm, -end spacer rings 3 are also arranged between the middle rubber cylinders 4 and the end rubber cylinders 2, the end spacer rings 3 are made of a high-strength and high-temperature-resistant composite material, the contact surface of the middle rubber cylinders 2 and the middle rubber cylinders is 20-end rubber cylinders 2, and the bowl-end rubber rings are made of a high-strength and a back ring contact surface of a bowl-2-1-20-2-20-4 back-20-stamping metal back-2 back-end rubber ring.
Due to the special structure of the sealing assembly, the whole sealing assembly has good application effect in a high-pressure gas injection environment, and the packer is ensured to have strong capability of resisting bidirectional pressure difference and good pressure bearing performance and stability.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
- The utility model provides a kind of airtight packer seal assembly, its characterized in that includes well spacer ring (5) and is equipped with respectively well packing element (4) of well spacer ring (5) both sides, two the outside of well packing element (4) respectively is equipped with end packing element (2), still be equipped with end spacer ring (3) between well packing element (4) and end packing element (2), two the outside of end packing element (2) respectively is equipped with backing ring (1).
- 2. kinds of hermetic seal packer sealing assembly according to claim 1, characterized in that, the back ring (1) is bowl-shaped and made of high strength metal material, the bowl-shaped back ring has an outer wall angle of 20-45 °.
- 3. The kind of hermetic seal packer assembly according to claim 1, characterized in that, the end packing element (2) and the middle packing element (4) are bowl-shaped and made of anti-gas explosion polymer material, and the outer wall angle of the bowl-shaped end packing element and the bowl-shaped middle packing element is 20-45 °.
- 4. type airtight packer sealing assembly according to claim 3, wherein, bosses (6) are provided on the upper part of the inner wall of the end rubber cylinder (2) and the middle rubber cylinder (4).
- 5. gas seal packer sealing assembly according to claim 4, characterized in that the boss (6) is semicircular in cross-section.
- 6. kinds of hermetic seal packer sealing components according to claim 1, characterized in that the matching contact surface of the end spacer ring (3) with the end packing element (2) and the middle packing element (4) is an inclined surface, and the matching contact surface of the middle spacer ring (5) with the end packing element (2) and the middle packing element (4) is also an inclined surface.
- 7. kinds of hermetic seal packer assembly according to claim 1, characterized in that, the end spacer ring (3) and the middle spacer ring (5) are made of high strength, high temperature resistant composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911098768.6A CN110735611A (en) | 2019-11-12 | 2019-11-12 | air-tight seal packer sealing assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911098768.6A CN110735611A (en) | 2019-11-12 | 2019-11-12 | air-tight seal packer sealing assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110735611A true CN110735611A (en) | 2020-01-31 |
Family
ID=69272697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911098768.6A Pending CN110735611A (en) | 2019-11-12 | 2019-11-12 | air-tight seal packer sealing assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110735611A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113775315A (en) * | 2021-09-29 | 2021-12-10 | 四机赛瓦石油钻采设备有限公司 | High-temperature high-pressure sealing system |
-
2019
- 2019-11-12 CN CN201911098768.6A patent/CN110735611A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113775315A (en) * | 2021-09-29 | 2021-12-10 | 四机赛瓦石油钻采设备有限公司 | High-temperature high-pressure sealing system |
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