METHOD FOR REVIVING THE WORKING CONDITION OF A WELL AND TECHNICAL COMPLEX FOR THE IMPLEMENTATION OF SAME

摘要

The group of inventions relates to the oil and gas industry and is intended for reviving the working condition of a well during production. The method for reviving the working condition of an oil and gas producing well comprises three stages. In the first stage, geophysical measurements of the well parameters are made, on the basis of which an inflow profile is established for the portion of the well under observation and "nonproductive" intervals are identified. In the second stage, the portions of the well that exhibit nonproductive intervals are flushed of technical fluids. In the third stage, control measurements of the geophysical parameters of the well are made and qualitative and quantitative characteristics of the production rate in the nonproductive intervals are determined. The technical complex for the implementation of the method comprises two assemblies with coiled tubing. The first comprises a geophysical cable for the connection and delivery into the well of a geophysical instrument, and the second coiled tubing assembly serves to flush the bottom hole portion of the well. Furthermore, the second coiled tubing assembly is adapted for connection to the hydraulic system of the first coiled tubing assembly and to the well flushing equipment. The claimed group of inventions provides an increase in the production rate of a working well by harnessing the nonproductive portions of a horizontal or inclined well shaft.