Small hole well completion lifting technology tubular column and use method thereof

Abstract

The invention provides a small hole well completion lifting technology tubular column and a use method of the small hole well completion lifting technology tubular column, and solves the problems that an existing lifting tubular column in an oil field is inconvenient to lift and locate in the using process, and the like. The small hole well completion lifting technology tubular column comprises a hollow oil rod, a rod pump, an anchor and a lifting operating barrel, wherein the lifting operating barrel is provided with a mechanism which is matched with an anchoring mechanism of the anchor. At the time of well completion, firstly, the lifting operating barrel is placed downwardly to the position, corresponding to the depth where the rod pump is to be hung, of a casing pipe, then a connected combination of the hollow oil rod, the rod pump and the anchor is placed downwardly, and the anchoring mechanism of the anchor and the corresponding and matching mechanism on the lifting operating barrel are used for accurate location. At the time of an overhaul, the hollow oil rod is lifted upwardly to enable the anchoring mechanism to break away from the lifting operating barrel, and then the rod pump can be taken out. The small hole well completion lifting technology tubular column has the advantages of being simple in structure, easy to control, convenient to overhaul and operate and the like, and is mainly used for an oil well with a small hole.

Description

technical field [0001] The invention relates to a tool used in oil well development, in particular to a slimhole well completion and lifting process string, and also relates to a method for using the process string. Background technique [0002] At present, the commonly used oil-free lifting strings mainly include hollow oil rods, rod pumps, and anchors. When in use, it is necessary to lower the pipe string to the predetermined position of the casing and anchor the anchor on the casing to realize the normal operation of the pump and lift the fluid from the hollow oil rod to the wellhead. During workover operations such as pump inspection, the anchor is released to achieve tubing-free lifting. However, for slimhole oil wells, due to the reduction of borehole diameter, there are difficulties in the design and practical application of anchors, which cannot effectively meet the technical requirements of low-cost, fast, convenient, and efficient development of slimholes, and als...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art, solve the problems of inconvenient lifting and positioning of the above-mentioned lifting string during use, and realize fast and convenient workover operations. One of the purposes is to provide a Slim hole completion lifting process string; the second purpose is to provide the use method of the slim hole completion lifting process string

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