Packer applicable to environment of 120 DEG C and 70 MPa

Abstract

The invention relates to a packer applicable to an environment of 120 DEG C and 70 MPa. The packer applicable to the environment of 120 DEG C and 70 MPa mainly solves the problem that existing packers are not applicable to high-temperature and high-pressure environments and is characterized in that the inner side of the lower portion of an upper joint (1) is connected with a pressure transmitting main body (4), and the inside of the pressure transmitting main body (4) is connected with a slide bushing (3); the inside of the slide bushing (3) is provided with a diameter-variable slide bushing (2), the side wall of the slide bushing (3) is provided with slide bushing sand outlet holes (14), and the side wall of the diameter-variable slide bushing (2) is provided with diameter-variable slide bushing sand outlet holes (14); the outside of the lower end of the pressure transmitting main body (4) is connected with an upper rubber barrel seat (5), the lower portion of the upper rubber barrel seat is connected with a rubber barrel (8), the lower portion of the rubber barrel (8) is connected with a lower rubber barrel seat (9), and the lower portion of the lower rubber barrel seat (9) is connected with a lower joint. The packer applicable to an environment of 120 DEG C and 70 MPa is applicable to underground high-temperature and high-pressure environments up to 120 DEG C and 70 MPa, high in sealing performance and reliable in packing.

Description

technical field [0001] The invention relates to the field of oil fields, in particular to a packer suitable for the environment of 120°C and 70MPa. Background technique [0002] The packer is an essential downhole tool in oil field fracturing. Most of the current packers can be applied at a temperature of about 100°C, which is not suitable for high-temperature wells. At the same time, the pressure they can withstand is also limited. When the environment is poor, the sealing performance is poor, resulting in unreliable setting. Contents of the invention [0003] In order to overcome the problem that the existing packers cannot adapt to the high temperature and high pressure environment, the present invention provides a packer suitable for the environment of 120°C and 70MPa, which can adapt to the high temperature and high pressure environment of up to 120°C and 70MPa underground , good sealing, reliable setting. [0004] The technical solution of the present invention is:...

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Problems solved by technology

[0003] In order to overcome the problem that the existing packers cannot adapt to the environment of high temperature and high pressure, the present invention provides a packer suitable for the environment of 120°C and 70MPa, which can adapt to the environment of high temperature and high pressure of up to 120°C and 70MPa underground , good sealing, reliable setting

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