Screen pipe horizontal well production profile testing apparatus and testing method for same

Abstract

A screen pipe horizontal well production profile testing apparatus and a testing method for the same are provided to overcome defects of difficulty of instrument loading, high testing cost and large construction risk of horizontal production profile testing technology for a screen pipe completion well in the prior art. In the screen casing horizontal well production profile testing apparatus, a releasing device (I), a releasing device (II) and a releasing device (III) are orderly fixedly connected via screen pipes; tracer agent is respectively disposed in the three releasing devices; during well completion practice, the testing apparatus is connected into a well completion pipe string; the releasing device (I) is arranged on a separation layer between a toe production layer and a middle production layer; the releasing device (II) is arranged on a separation layer between the middle production layer and a heel part production layer; the releasing device (III) is arranged on a separation layer on the back part of the heel part production layer; well completion construction is conducted; after the apparatus is put into practice, gamma-ray spectra analysis is conducted to produced liquid via gamma-ray spectra detection equipment on the ground; and production profiles can be analyzed according to types and feature contents of detected tracer agents.

Description

technical field [0001] The invention relates to a production profile testing technology for completion of a screen horizontal well, in particular to a production profile testing device and a testing method for a screen horizontal well. Background technique [0002] During the production operation of horizontal wells in oil and gas development, screen completion is a widely used completion method. However, due to the special drilling trajectories and completion methods of screened horizontal wells, conventional cable methods and mechanical methods are difficult to test the production profile (formation fluid production), which has become a major issue in the formulation of production systems, arrangement of stimulation measures and oil stabilization. Outstanding problems in water control and other work. [0003] At present, for the horizontal well production profile test of screen tube completion, the horizontal well production test method with the technical feature of "mult...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the existing screen completion horizontal well production profile testing technology, it is difficult to run the instrument, the test cost is high, the construction risk is high, and the applicable well conditions are limited, which cannot meet the needs of safe, economical and effective screen completion horizontal wells. Insufficient production profile testing requirements, the present invention provides a screen horizontal well production profile testing device and testing method thereof

Images