Abstract: In view of the problem of high water cut in horizontal wells caused by the edge and bottom water inrush in shallow unconsolidated sandstone reservoirs, some domestic oilfields use adaptive flow regulation and water control screen pipe completion technology to control water and increase oil production, but there is less theoretical research on staged water control completion, and the experience of using conventional nozzle type water control valve in the design of related parameters cannot meet the scientific requirements of the design of self-adaptive water control screen pipe completion in horizontal wells, which affects the on-site implementation effect. This paper studies the principle of self-adaptive flow regulation and water control technology for horizontal wells and sectional technology, establishes the design method of water control valve hole size when there are differences in fluid properties and permeability in each section of horizontal wells, optimizes the precision of sand control screen pipe for shallow reservoirs in Jidong Oilfield, forms the self-adaptive flow regulation and water control completion technology and optimization design method for horizontal wells, and obtains obvious effects of precipitation and oil increase, and prolonging the production period of medium and low water cut in the application of shallow edge and bottom water reservoirs in Jidong Oilfield.

Key words: self-adaptive flow regulation and water control, horizontal well, completion, optimization design method, reliable segmentation