Casing centralizer with clamping mechanism for oil field exploitation
A clamping mechanism and centralizer technology, which is applied in the direction of casing, drill pipe, earthwork drilling, etc., can solve the problems of low use range and poor righting effect, and achieve the effect of improving the righting effect, avoiding inclination, and improving the use range
Inactive Publication Date: 2021-08-06
李涧
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Problems solved by technology
[0003] The technical problem solved by the present invention is to overcome the disadvantages of poor centralizing effect and low application range in the prior art, and provide a casing centralizer for oil field development with a clamping mechanism and its use method
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[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0027] see Figure 1-5 , the present invention provides a technical solution: a casing centralizer for oil field development with a clamping mechanism, including a centralizing pipe 1, and both ends of the centralizing pipe 1 are provided with annular plates 2, and several annular plates 2 are provided. The inner diameter of the annular plate 2 is set in descending order, and the side wall of the annular plate 2 close to the centralizing pipe 1 is provided wit...
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The invention discloses a casing centralizer with a clamping mechanism for oil field exploitation and a use method of the casing centralizer. The casing centralizer comprises a centralizing pipe, annular plates are arranged at the two ends of the centralizing pipe correspondingly, a plurality of connecting mechanisms are arranged on the side walls of the sides, close to the centralizing pipe, of each annular plate, a plurality of adjusting mechanisms are arranged on the side wall of the side, away from the centralizing pipe, of each annular plate, and a plurality of evenly-distributed jacking mechanisms are arranged on the inner wall of the centralizing pipe. According to the technical scheme, through mutual cooperation of the centralizing pipe, the annular plates and the connecting mechanisms, the annular plates with different inner diameters can be replaced according to actual requirements, the casing centralizer is suitable for oil rods with different diameters, and the application range of the casing centralizer can be effectively widened.
Description
technical field [0001] The invention relates to the technical field of casing centralizers, in particular to a casing centralizer with a clamping mechanism for oilfield development and a method of use thereof. Background technique [0002] The casing centralizer is installed on the casing so that it is in the center of the wellbore. It is one of the accessories of the casing and is conducive to improving the cementing displacement effect. At present, the casing centralizer has a simple structure, easy to use, The features of long service life and relatively low cost are widely used, but most of the casing centralizers in the prior art cannot be selected according to the diameter of the oil rod when the casing centralizer is in use, and the centralizer and the oil rod are prone to occur. They do not match each other, and there is inconvenient installation when replacing different centralizing pipes, which reduces their use efficiency to a certain extent, resulting in poor cen...
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CPCE21B17/1042E21B17/1078
Inventor 李涧
Owner 李涧