The Study On The Distribution Characteristics Of Thin Thick Oil In The Xinglongtai Oil Layer On The West Slope Of The Western Depression Of Liaohe Basin

In view of the complicated geological conditions of the west slope,the fast change of the reservoir and the unclear distribution law of the reservoir,through the in-depth analysis of the stratigraphic features,structural features,reservoir characteristics,reservoir forming models and enrichment laws in the work area,the new theory,new method and new technology are used to study the S1+2 section of the west slope.The comprehensive geological study is carried out with the Xinglongtai oil layer.The study draws the following conclusions: the study area is located on the west slope of the western depression,the fault development in the area is developed,the fault distribution is multidirectional,and the reservoir sand bodies of the multi wells in the industrial area are summarized and analyzed in detail.The distribution rules and sedimentary facies models of the reservoir sand bodies in this area are made clear,through JASON and STRATA.The software can predict the reservoir inversion and the stability of the sand body distribution and determine the distribution trend of the sand body in the present work area.Based on the detailed data of the oil layer data and the test oil test in the drilling interpretation,the distribution map of the II formation and the reservoir profile of the main evaluation target layer are finally compiled,thus the further reservoir forming model is made.A comprehensive analysis of regional structural features,evolutionary history,oil and gas distribution and geological control factors is carried out.On the basis of this,the differences in hydrocarbon accumulation patterns and types of oil and gas reservoirs in various tectonic positions are summarized.