A new integrated method for comprehensive performance of mechanical sand control screens testing and evaluation

摘要

AbstractThe comprehensive performance of mechanical screens is extremely important for sand control and well completion and to the screen's service life. Screen sand retaining media are analyzed and divided into several classifications. The concepts of sand retaining ability, anti-plugging ability, and flow capacity are put forward to describe screen comprehensive performance. A new experimental method is set up to test the comprehensive performance of mechanical screens. During the test, formation sand is carried by fluid that flows radially against the screen to simulate the real process of sand retaining. The variation of flow rate, pressure difference through screen media, and permeability with time reflect the screen's dynamic characteristics. Based on test data, a set of evaluation indexes is proposed to describe the conductivity, sand retaining, anti-plugging ability, and relevant comprehensive performance of screens. The calculation method is also developed. This new integrated methodology for comprehensive performance evaluation was successfully applied in the selection of optimum screen type for a given reservoir. This method needs only a small number of tests and provides an effective means for evaluating and selecting an optimum screen type for reservoirs.Graphical abstractDisplay OmittedHighlights?A set of individual and comprehensive evaluation indexes for screen performance is proposed.?The more reliable corresponding experimental evaluation methodology and specification are established.?The new integrated methodology for comprehensive performance quantitative evaluation was successfully applied.]]>