Sucker rod centralizer convenient for installation
A technology for centralizers and sucker rods, which is applied to drill pipes, drilling equipment, earthwork drilling and production, etc. It can solve the problems of cumbersome operation, large loss, time-consuming and labor-intensive separation, etc., and achieves convenient operation, reasonable structure and saving working time Effect
Pending Publication Date: 2019-01-04
DAQING DANFENG PETROLEUM TECH DEV CO LTD
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Problems solved by technology
[0004] At present, the centralizing wax scraper on the sucker rod centralizer is a wear-and-tear part, which has a large loss and needs to be replaced on schedule. When replacing the centralizing wax scraper, the sucker rod centralizer must be separated from the sucker rod. The oil rod is long, the separation of the two is time-consuming and labor-intensive, and the operation is cumbersome
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[0018] 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.
[0019] The present invention provides such as Figure 1-4 A sucker rod centralizer that is easy to install is shown, including a centralizer main body 1, a limit block 14, a connecting rod 11 and an elastic column 17. The centralizer main body 1 includes a centralizer wax scraper 3 and a The outer cladding 2 on the outer surface of the wax scraper 3, and the inner cladding 4 on the inner surface;
[0020] The righting wax scraper 3 is composed of two sets of ...
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The invention discloses a sucker rod centralizer convenient for installation. The sucker rod centralizer comprises a centralizer main body, a limiting block, a connection rod and an elastic column. The centralizer main body comprises a righting wax scraper, an outer cladding wrapping the outer surface of the righting wax scraper, and the inner cladding of the attached inner surface. The righting wax scraper is formed by the upper device body and the lower device body of two groups of half-ring body structures. The upper device body is hinged to the lower device body. The horizontal cross section of the lower device body is provided with several groups of openings through which a clamping block can move. The bottom end of the clamping block is extended into the openings and is vertically welded with the connection rod. The connection rod is horizontally arranged. A cavity used for placing the connection rod is arranged in the lower device body. One end of the connection rod is fixedly connected to a pressing block. The sucker rod centralizer convenient for installation has characteristics that the structure is reasonable, usage is convenient, work time is saved, practicality is highand so on. The centralizer can be widely used.
Description
technical field [0001] The invention belongs to the technical field of centralizers, and in particular relates to an easy-to-install sucker rod centralizer. Background technique [0002] The centralizer is a cementing tool. It is simple to manufacture, beautiful in structure, durable and strong in centralizing force. [0003] The centralizer of well cementing quality can be divided into two categories according to the style, elastic centralizer and rigid centralizer, and each style can be subdivided; according to the specification and size, it can be from 31 / 2in to 20in; according to the material, it can be divided For cast steel, cast aluminum, resin, etc. [0004] At present, the centralizing wax scraper on the sucker rod centralizer is a wear-and-tear part, which has a large loss and needs to be replaced on schedule. When replacing the centralizing wax scraper, the sucker rod centralizer must be separated from the sucker rod. The oil rod is long, and the separation of t...
Claims
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IPC IPC(8): E21B17/10
CPCE21B17/1071
Inventor 秦春光黄磊杜信
Owner DAQING DANFENG PETROLEUM TECH DEV CO LTD