Novel carbon fiber sucker rod and manufacturing method thereof

Abstract

The invention relates to a novel carbon fiber sucker rod and a manufacturing method thereof. The sucker rod in the invention consists of a rod body and rod joints, wherein the rod body is prepared from carbon fiber composite, the both ends of the rod body are connected with the rod joints; the rod joints are prepared from carbon fiber composite; and the rod joints are machined on the rod body directly and integrated with the rod body. The sucker rod is prepared from the main raw materials comprising T300 carbon fiber-12K, epoxy resin, Me-THPA, accelerator and release agent through the pultrusion technology. According to the invention, as the sucker rod is corrosion-resistant, is difficult to break and has light weight, the time of downhole operations in a pumped well is reduced, the maintenance-free period is prolonged, and the downhole operation cost and the material cost for changing the sucker rod are saved. By adopting the carbon fiber composite sucker rod disclosed by the invention, the transportation is convenient, the installation speed is high, the time and the labor are saved and the operation is safe and reliable.

Description

technical field [0001] The invention relates to oil production equipment and manufacturing technology in the petroleum industry, in particular to a carbon fiber composite material sucker rod and a manufacturing method thereof. The processed carbon fiber composite material sucker rod is suitable for use on various oil wells. Background technique [0002] The sucker rod is one of the key components of the rod pump. During the working process of the rod pump, the sucker rod reciprocates up and down about 9300 times per day according to the calculation of 6-7 strokes per minute. During this reciprocating motion, the sucker rod is affected by various factors, mainly the forces from various acting media. Various corrosive media in the produced fluid include crude oil, water and dissolved oxygen, carbon dioxide, hydrogen sulfide, dissolved salts, sand, wax precipitated in crude oil, scale precipitated in water, etc. and fail. In addition, the sucker rod itself will also undergo f...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a novel carbon fiber sucker rod and its manufacturing method, provide a corrosion-resistant, high-strength, hard-to-break, light-weight, and solve the problem of the use of carbon fiber continuous sucker rods. The sucker rod with disadvantages such as narrowness and inconvenient operation can be connected without coupling, which can eliminate the coupling effect, increase the filling factor of the pump, extend the maintenance-free period of the pumping well, reduce the number of maintenance operations, and reduce the cost of oil production

Images