A self-expanding sand control screen expansion performance experimental device and its experimental method

Abstract

The invention provides a self-expanding sand control screen expansion performance experiment device and an experimental method thereof. The device includes a cylinder and a self-expanding sand control screen located in the cylinder. The self-expanding sand control screen includes a base pipe and a casing A self-expanding sleeve is placed on the base pipe; a fluid inlet and a measurement port are arranged on the cylinder body; a measuring rod and a displacement sensor connected to the measurement are installed on the measurement port; the opening of the cylinder body A base is provided at the end, and the base is sealingly connected with the end of the base pipe, and a fluid outlet is provided on the base. The invention can not only measure the expansion performance of the self-expanding material, but also measure the compressive strength and sand-retaining accuracy of the self-expanding material, which helps to optimize the suitable self-expanding material and ensure the work of the self-expanding sand control screen under different conditions state, thereby improving the success rate of self-expanding sand control screen completion technology in field application.

Description

technical field [0001] The invention relates to the field of sand control well completion for oil, gas and water wells, in particular to a self-expanding sand control screen expansion performance experimental device and an experimental method thereof. Background technique [0002] Self-expanding sand control screen belongs to a new type of sand control screen, which is a kind of sand control screen that expands the expansion parts in the screen due to temperature, pressure or fluid, etc., and fills the space between the screen and the well wall. During the well completion process, the completion string of the compressed self-expanding sand control screen is lowered into the horizontal interval by using the drill pipe or tubing, and the suspension packer is set and suspended, and the mud cake is cleaned by the positive circulation completion fluid, and the near-wellbore zone is released. blockage, improve permeability, and melt the outer layer of the self-expandable sand cont...

AI Technical Summary

Problems solved by technology

This new type of self-expanding sand control screen not only needs to test its sand retaining accuracy, anti-clogging ability and expansion performance, but also needs to test its expansion performance. However, there is no experimental device for testing the expansion performance of self-expanding sand control screen. method

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