Comprehensive performance testing rack for variable-diameter casing centralizer
A comprehensive performance test and test bench technology, applied in measurement, wellbore/well components, earthwork drilling and production, etc., can solve the problems of no test bench, etc., achieve strong integrity, convenient operation, and improve cementing safety rate and the effect of cementing quality level
Active Publication Date: 2019-02-01
CHINA NAT OFFSHORE OIL CORP +1
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Problems solved by technology
[0004] The experimental bench of the hydraulic variable diameter casing centralizer is the key equipment for indoor experiments. According to the research, there is no similar experimental bench in China at present.
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[0016] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer" and so on is based on the orientation or positional relationship shown in the drawings, and is only for convenience The present invention is described and simplified descriptions do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance. The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0017] Such as figure 1 As shown, the present invention provides a comprehensive performance test bench for casing centralizers ...
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The invention relates to a comprehensive performance testing rack for a variable-diameter casing centralizer. The comprehensive performance testing rack comprises a base. Two displacement controllersare arranged on the base, axial stop devices are arranged on the two displacement controllers correspondingly, vertical sliding rails are arranged on the opposite inner sides of the two axial stop devices correspondingly, a first rail pulley is slidably arranged on the first axial stop device through the corresponding vertical sliding rail, and a second rail pulley is slidably arranged on the second axial stop device through the corresponding vertical sliding rail; a first centralizer supporting frame and a second centralizer supporting frame are arranged in the position, located between the first axial stop device and the second axial stop device, of the middle of the base, and a transversely-arranged casing is supported at the tops of the first centralizer supporting frame and the secondcentralizer supporting frame; the variable-diameter casing centralizer is arranged in the casing in a penetrating mode, and the two ends, outside the casing, of the variable-diameter casing centralizer are in threaded connection with a first plug and a second plug correspondingly; and the ends of the first plug and the second plug are inserted into the first rail pulley and the second rail pulleycorrespondingly.
Description
technical field [0001] The invention relates to the technical field of performance testing equipment for oil and gas well cementing tools, in particular to a comprehensive performance testing platform for casing centralizers with variable diameters. Background technique [0002] In the cementing process of highly deviated wells and horizontal wells, in order to ensure that the casing is centered, it is necessary to install a sufficient amount of casing centralizers, but after installation, the casing friction will be relatively large; , although it is conducive to casing running, but the casing will be seriously eccentric due to its own gravity after the casing is running, which will cause poor cementing quality on the side of the narrow gap during the cementing process, and even cannot form effective cement. The environment directly affects the life of oil and gas wells, and there are great safety hazards in the later production process. [0003] In view of the above techn...
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IPC IPC(8): E21B47/005E21B47/024
CPCE21B47/024E21B47/005
Inventor 耿亚楠黄志强岳家平刘书杰周建良郑双进刘和兴武治强杨焕强郭宗禄郭宇健朱玖琳
Owner CHINA NAT OFFSHORE OIL CORP