A method for forging and extruding rod body aggregate type centralizing sucker rod

Abstract

The invention discloses a rod body material collection type centralizing sucker rod and a casting method thereof. The casting method comprises the steps that the rod body of the sucker rod is extruded and clustered to form a spline by a mold, ideal mechanical property strength can be reached by thermal refining, after machining is carried out, and a centering guide is subjected to injection molding on the rod body of the sucker rod by an injection molding machine at the corresponding position where the spline is subjected to extrusion moulding. According to the rod body material collection type centralizing sucker rod and the casting method thereof, the centering guide is firmly and tightly fixed to the rod body, the centering guide on the rod body is effectively prevented from sliding and falling off in a sucker rod string and in the process of driving the sucker rod string to extract oil, the extract oil of the sucker rod string is better solved, and an ideal oil extraction effect is realized.

Description

Technical field [0001] The invention relates to a downhole tool used in the field of oilfield development and a forging and extrusion method thereof, in particular to a novel rod body extrusion polymer type righting sucker rod product and a forging and extrusion method thereof, and belongs to the field of oil system oil extraction. Background technique [0002] The sucker rod of a rod pump in an oil well is thousands of meters long. The sucker rod string keeps reciprocating up and down during the oil production process, especially for inclined wells or curved oil wells. The sucker rod and its coupling will be continuous Continuously produce eccentric wear on the inner wall of the tubing. Due to the increasing wear and tear, accidents of oil pipes being worn through or sucker rod strings broken off often occur, and frequent production and maintenance operations have to be stopped, which not only affects crude oil production, but also consumes a lot of equipment, equipment and manp...

AI Technical Summary

Problems solved by technology

The roller of the roller centralizer is easily stuck in the well due to formation sand, corrosion and other reasons. After the stuck, the up and down rolling of the roller becomes sliding, forming a knife-edge effect on the inner wall of the oil pipe, which accelerates the wear of the oil pipe

Slider type and hoop type centralizers are stuck on the sucker rod body, which cannot be positioned well on the rod body. The centralizer on the driving sucker rod column is easy to slip and fall off, and the effect of anti-eccentric wear is not good

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