Research And Application On The Displace Oil Of ASP Flooding

LaSaXing oil field was composed of channel sandbody which has flooding-distributary plain feature. These sandbody are cut reciprocally and pile set .these the river course contributing factor forms chiefly are the grit character braid shape river grit part of the body, meander river grit part of the body , the tall crooked bridging river course grit part of the body and low crooked bridging river course grit part of the body. They take great rate living in the oil layer, so they are seriously affecing thick oil layer of waterflooding.The DaQing oil field goes into the particular high water cut stage,but the thick oil layer still reserve greats quantity remainder oil. So the thick oil layer is still the main target that taped the latent power in the oil field.This article has systematically analyzed and summed up feasibility of ASP flooding in lifting quality of recovery ratio and raising economic results according to the forerunner's experiment of ASP Flooding. Aiming at deposition characteristics of lower permeability oil layer in Daqing oil field, the property of deposit characteristics, reservoir condition,crude oil properties, development status, and distribution of the remaining oil is studied..Favorable development of pattern well spacing and system adjustment technique for the the second class oil layer are decided. This method has lead to high efficiency development of the the second class oil layer and raise utilizations ratio of the oil deposit reserves Utilizing the much branches reservoir description and basing on fine geologic description in thick oil layer analysed sedimentation type and the storage feature in different reservoir blocks. Compared with ASP flood effectiveness of different reservoir feature.By experiment of physics simulation, type of PAM, alkali SAA are decided. Optimize injected fashion of ASP flooding and realizes optimizing ASPflooding in LaMaDian oil field.