Completion design method by bottom water reservoir horizontal well segregated water control

Abstract

A completion design method by bottom water reservoir horizontal well segregated water control includes the steps of determining horizontal well water control well sections by analyzing and determining the well sections needing to be packed during segregated completion according to collected data information, and defining final water control well sections; performing optimization design of a segregated scheme by determining reasonable segregated number and segregated length according to the final water control well sections; performing optimization design of a completion scheme by taking minimum difference of water breakthrough time of the water control well sections of the segregated scheme and minimum completion total additional percolating resistance as a principle, optimizing to obtain reasonable liquid production capacity and additional resistance values of the water control well sections, and determining throttling passage parameters of the water control well sections; and performing horizontal well segregated water control completion construction by performing construction of the water control completion scheme according to the reasonable liquid production capacity, the additional resistance values and the throttling passage parameters, and controlling the liquid production capacity of each water control well section to achieve water control and oil stabilization.

Description

technical field [0001] The present invention relates to a segmented well completion technology for a horizontal well, in particular to a segmental water-controlled completion design and construction of a bottom-water reservoir horizontal well completion with segmented water control through the segmental optimization design of the horizontal well and the well completion optimization design design method. Background technique [0002] It has been several decades since the idea of ​​horizontal well fluid production profile technology was put forward, and domestic and foreign research institutions and production units have also made a lot of explorations. At present, relatively mature technologies include horizontal well variable density perforation technology and horizontal well separation technology. well completion technology. Horizontal well variable density perforation technology is a technology to adjust the liquid production profile of horizontal wells by changing the pe...

AI Technical Summary

Problems solved by technology

At present, the segmented completion design of horizontal wells is mainly realized by numerical simulation method. Numerical simulation method requires a lot of data, which is difficult to collect, time-consuming and labor-intensive, and cannot meet the requirements of rapid completion of horizontal wells on site.

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