Research and application on deep profile control technology in complex fault block reservoir

Combination slug deep profile control injection system, slug optimization design and ground injection technique study were conducted aiming at severe heterogeneity of reservoir and quickly rising of comprehensive water cut in Liuzan oilfield. The injection profile control system is determined to be gel microspheres injection in alternating with high temperature phenolic resin cross-linked polymer system, and ground injection allocation process was adopted to make the layered rotation injection and parameter adjustment control easier. By the end of May, 2013, the cumulative incremental oil of test area is 9800t without taking the decrease into account while calculating decrease the value is 16 960 t.