In view of the shortcomings of conventional pumping technologies that can only pump with a simple pipe string, an adjustable pumping tool that can meet the requirement of STH pumping is developed, which helps solve the difficulties of higher wellhead, low formation energy, relatively low liquid level, and difficult drainage of liquid of side tracked hole.

A new well-testing technology of fracturing two-layers with single string running;

In order to avoid formation damage caused by well killing and running pump after perforating in rod-pumped well,the integrated string of perforating,running pump and non-well killing operation is developed.

The details of string stucture, technique procedures, field testing by one trip string production test and completion technique are described in this paper, which is of reference value on production testing work in gas field, espically in sour gas fields.