关键词: LJ地区, 碳酸盐岩, 致密油, 叠前反演, 甜点区

Abstract: According to the geological characteristics and data of LJ region, the prestack study is used as the main means to analyze the relationship between the dominant lithology and the mineral content, and to establish the lithology identification standard based on the basic data of LJ dense oil from core and log analysis. Based on the petrophysical analysis, the data of "two width and one height" are used to predict the dominant lithology, dolomite content, property and brittleness of lithology and dolomite in the same time. The seismic data of AVOZ anisotropic fracture are performed by means of the partial azimuthal offset seismic data. Finally, the results of lithological prediction and fracture prediction are combined together with the results of comprehensive geological study, and the results of geological research are integrated to point out the predominant dessert area and guide the exploration and deployment.

Key words: LJ region, Carbonate rock, Tight oil, Pre-stack inversion, Dessert area