Packer suitable for 120℃, 70mpa environment
A packer and environment technology, applied in the directions of sealing/packing, wellbore/well components, earth-moving drilling, etc., can solve the problem that the packer cannot adapt to the environment of high temperature and high pressure, achieve good sealing and improve construction Displacement, convenient unsealing effect
Active Publication Date: 2016-07-06
DAQING FUWANTONG PETROLEUM SCI & TECH
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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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[0008] The present invention will be further described below in conjunction with accompanying drawing:
[0009] Depend on figure 1 As shown, a packer suitable for an environment of 120°C and 70MPa includes an upper joint 1 and a lower joint 10. The inner side of the lower part of the upper joint 1 is connected with a pressure guiding body 4, and the inside of the pressure guiding body 4 is connected with a sliding sleeve. 3. A variable diameter sliding sleeve 2 is installed inside the sliding sleeve 3, and there is a sliding sleeve sand outlet 14 on the side wall of the sliding sleeve 3, and a through groove is opened on the pressure guiding body 4 corresponding to the sliding sleeve sand outlet 14. The inner side of the bottom of the sleeve 3 is connected with the central pipe 7 . The variable-diameter sliding sleeve 2 side walls have a variable-diameter sliding sleeve sand outlet 13, and the internal diameter of the variable-diameter sliding sleeve 2 top has a slope, and th...
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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:...
Claims
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IPC IPC(8): E21B33/12
Inventor 李国庆赵岭杰
Owner DAQING FUWANTONG PETROLEUM SCI & TECH