Slow-release type tracer agent real-time water finding devices and horizontal well real-time water finding and water plugging integrated tubular string and implement method

Abstract

The invention belongs to the technical field of horizontal well real-time water finding and water plugging, and particularly relates to slow-release type tracer agent real-time water finding devices and a horizontal well real-time water finding and water plugging integrated tubular string and implement method. The water finding and water plugging integrated tubular string comprises partition devices capable of dividing a horizontal well into a plurality of well sections and water finding devices capable of placing slow-release type tracer agents, the water production condition of each well section of the horizontal well can be accurately judged according to the content of each tracer agent collected at a wellhead, and the water plugging operation can be carried out on any well section of the horizontal well in cooperation with the application of sliding sleeves capable of being opened and closed in the slow-release type tracer agent real-time water finding devices. According to the devices, the tubular string and method, a water producing part of the horizontal well can be determined and the water plugging operation can be accurately carried out on the water producing part of the horizontal well through one-trip tubular string; the problems that according to an existing horizontal well water finding and water plugging technology, multiple trips of the tubular string needs to becarried out, the operation cost is high, the operation period is long, tripping in of the devices is difficult and the like are solved; and the requirements of economic and efficient water finding and water plugging of the horizontal well on a mine field can be met.

Description

technical field [0001] The invention belongs to the technical field of real-time water finding and water blocking for horizontal wells, and in particular relates to a slow-release tracer real-time water finding device, an integrated pipe string for real-time water finding and water blocking for horizontal wells, and an implementation method. Background technique [0002] With the wide application of horizontal wells in our country, a large number of high-water-producing horizontal wells have emerged. How to economically and efficiently determine the water breakthrough position and accurately shut off water for such high-water-producing horizontal wells has become an economical and Efficiency problems need to be solved. [0003] At present, in terms of water search and water shutoff in horizontal wells, the commonly used method is to first install the relevant liquid production profile testing device to determine the water breakthrough position of the horizontal well, and the...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the limitations of the existing horizontal well water search and plugging technology, such as the need for multiple tripping and lowering of the pipe string, high operating costs, long operation cycle, and difficulty in installing equipment, and it is difficult to meet the economical and efficient search for horizontal wells in the mine field. The problem of water plugging demand, the object of the present invention is to provide a slow-release tracer real-time water finding device, a horizontal well real-time water finding and water blocking integrated pipe string and its implementation method

Images