Reservoir Forming Condition And Analysis Of Petroleum Geologic Conditions In Central And Western Of Langgu Sag

To meet the need of development of hydrocarbon exploration, it is promoted the3D Seismic integration in Langgu Sag over the last two years. This paper studies carefully the central and western regions of Langgu Sag, which researches the whole-block, integral interpretation and sequence stratigraphy. It is unified formation classification and clarified geological structure and the reservoir features in this area. It is analyzed the space distributing law of sedimentary system based on sedimentary facies research. It is deepened reservoir forming conditions applying new techniques and new methods, such as AVO inversion, prediction of oil and gas reservoir,etc. It is built reservoir forming model and analyzed hydrocarbon distribution, pointed out the favorable zones are Gu’an structure, the north of Hupoying structure and the east of Liuquan structure. It is preferred favorable targets and found reliable traps that providing foundation for well disposition in hydrocarbon exploration.