Air-tight seal packer sealing assembly
A technology of sealing components and packers, which is applied in the directions of sealing/isolation, wellbore/well parts, earthwork drilling and production, etc. It can solve the problems of poor sealing performance and poor overall pressure resistance, and achieve good pressure bearing and The effect of stability and strong resistance to two-way pressure difference
Pending Publication Date: 2020-01-31
四机赛瓦石油钻采设备有限公司
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Problems solved by technology
[0003] In order to overcome the above-mentioned deficiencies in the prior art, the present invention proposes a hermetic packer sealing assembly to solve the technical problems of poor sealing performance and poor overall pressure resistance of the existing packer sealing assembly
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[0017] The following examples are presented to illustrate certain embodiments of the invention and should not be construed as limiting the scope of the invention. The content disclosed in the present invention can be improved simultaneously from materials, methods and reaction conditions, and all these improvements should fall within the spirit and scope of the present invention.
[0018] Such as figure 1 The sealing assembly of a hermetic packer shown includes a septum ring 5 and intermediate rubber barrels 4 respectively provided on both sides of the septum ring 5, and the septum ring 5 is made of high-strength, high-temperature-resistant composite material; the outer sides of the two middle rubber tubes 4 are respectively provided with an end rubber tube 2, and the end rubber tubes 2 and the middle rubber tube 4 are bowl-shaped and made of anti-airburst polymer materials, and the bowl-shaped The outer wall angle of the end rubber cylinder and the bowl-shaped middle rubber ...
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Abstract
The invention relates to an air-tight seal packer sealing assembly. The air-tight seal packer sealing assembly comprises a middle separating ring and middle rubber barrels arranged on the two sides ofthe middle separating ring correspondingly. Two end rubber barrels are arranged on the outer sides of the two middle rubber barrels correspondingly. End separating rings are arranged between the middle rubber barrels and the end rubber barrels. Two back rings are arranged on the outer sides of the two end rubber barrels correspondingly. According to the air-tight seal packer sealing assembly, unique structural design is adopted in cooperation with various high-strength materials resisting gas explosion and high temperature, and the air-tight seal packer sealing assembly can achieve high two-way differential pressure resisting capacity in a gas environment and has high pressure bearing performance and stability.
Description
technical field [0001] The invention relates to the technical field of oil well drilling and production in oil fields, in particular to a sealing assembly of a gas-tight packer. Background technique [0002] At present, with the continuous expansion and extension of the field of petroleum exploration and development, the proportion of complex oil and gas reservoirs and hard-to-recovery reserves is increasing. Considering the characteristics of low porosity, low permeability and extremely thick oil layers, thermal recovery of heavy oil should be considered The gas injection process needs to ensure that the packer has a strong ability to resist two-way pressure difference. However, the application effect of conventional packer sealing components is not good in high-pressure gas injection environments. The sealing components become short boards, and the overall pressure resistance is poor. There may be missing points due to structural problems. Contents of the invention [0...
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IPC IPC(8): E21B33/127
CPCE21B33/127
Inventor 王传鸿李雄邹刚杨小成卢刚魏伟肖庆玲李爱春赵昆刘星颜湘庆鲍凤
Owner 四机赛瓦石油钻采设备有限公司