Sucker rod centering guide convenient for installation
A technology of sucker rods and centralizers, which is applied in the direction of drill pipes, drilling equipment, earthwork drilling, etc., can solve the problems of reducing the sealing performance of sucker rods, time-consuming and labor-intensive separation, and affecting service life, etc. The effect of high strength and stable performance
Inactive Publication Date: 2014-04-30
STATE GRID CORP OF CHINA +1
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Problems solved by technology
When replacing the current centralizing wax scraper, the sucker rod centralizer must be separated from the sucker rod. Since the sucker rod is long, the separation of the two is time-consuming and labor-intensive, and the operation is cumbersome, and repeated operations are easy to lower the sucker rod. The sealing performance of the seal will affect its service life and cause loss
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[0015] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.
[0016] figure 1 It is a structural schematic diagram of a sucker rod centralizer that is easy to install according to an embodiment of the present invention; the sucker rod centralizer includes a rod body 1, a fastening ring 2 and a wax scraper 3 for centralizing, one end of the rod body 1 is a male buckle 4, and the other end It is a female buckle 5 for connecting the sucker rod. The centralizing wax scraper 3 adopts an open-loop structure design, and the sucker rod centralizer 3 does not need to be separated from the sucker rod during installation and disassembly. The centralizing wax scraper 3 3. A fastening structure is provided at the closed...
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The invention discloses a sucker rod centering guide convenient for installation, which comprises a rod body, a fastening ring and a centering paraffin knife, wherein one end of the rod body is provided with a male buckle, the other end of the rod body is provided with a female buckle, the male buckle and the female buckle are used for connecting a sucker rod, the centering paraffin knife is designed by adopting an open loop structure, the sucker rod centering guide does not need to be separated from the sucker rod during assembly and disassembly, the centering paraffin knife is provided with a fastening structure in the closed part, and the fastening structure realizes fixation by cooperation with the fastening ring. The sucker rod centering guide convenient for installation is reasonable in structure design, and has special functions; the centering paraffin knife on the sucker rod centering guide can be directly assembled and installed, thus the disassembly of the sucker rod centering guide is avoided, and good sealing property of the sucker rod centering guide and the sucker rod is ensured; and meanwhile, the centering paraffin knife has the advantages of high installation strength, stable performance and long service life.
Description
technical field [0001] The invention relates to a sucker rod centralizer, in particular to a sucker rod centralizer which is easy to install, and belongs to the technical field of petroleum accessories. Background technique [0002] The sucker rod moves up and down in the oil pipe. Due to the elastic deformation of the sucker rod, friction between the sucker rod and the wall of the oil pipe is likely to occur, and the sucker rod is easy to break off, and it is difficult to salvage after entering the oil pipe, which affects the production efficiency. For this reason, people connect the sucker rod centralizer to the sucker rod. The sucker rod centralizer has the characteristics of strong flexibility, friction resistance and corrosion resistance. It contacts with the inner wall of the oil pipe to reduce the friction between the sucker rod and the oil pipe. , Enhance the oil production life of the pumping unit. [0003] With the rapid development of the national economy, great ...
Claims
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IPC IPC(8): E21B17/10
Inventor 陈小华
Owner STATE GRID CORP OF CHINA