Scale Reservoir Prediction Of Carboniferous Volcanic Rock Of Madong Area In Junggar Basin

With the increasing demand for oil and gas resources around the world,people gradually focus on volcanic oil and gas reservoirs which are difficult to explore and develop.Compared with widely existing sedimentary rock reservoirs,volcanic rocks have special accumulation conditions and limited distribution range.However,the production of volcanic rock reservoir is generally high.At present,volcanic oil and gas reservoir is one of the dominant deep oil and gas reservoir types in Junggar Basin.The carboniferous oil and gas reservoir has low exploration degree and great resource potential.It is the next large-scale strategic replacement area of the basin,and the exploration and development situation is urgent.The research area of this thesis is located in Madong area of northwestern margin of Junggar Basin.The study area is close to Mahu sag,and carboniferous volcanic rocks are laterally docking with p1 f source rocks in Mahu Sag.The tectonic location has favorable conditions for reservoir formation and the whole block has great exploration potential.This paper mainly studies the following aspects.(1)To analyze the tectonic background and stratigraphic development of the study area,carry out fine seismic data interpretation work,clarify the carboniferous structural pattern of the study area,and describe the distribution of nose convex structures and faults.(2)Describe the rock types and lithofacies characteristics of carboniferous volcanic rocks in the study area.Characterize the distribution of carboniferous volcanic rocks by high precision magnetic anomaly maps.Identify the shape and distribution of volcanic structures by constructing guided filtering technology.(3)Carry out a comprehensive evaluation study of carboniferous volcanic reservoir,summarize the reservoir characteristics and main controlling factors in this area,and clarify the distribution of fractures and weathering crust of carboniferous reservoir in this area.(4)Study the characteristics of reservoir formation in this area.Analyze the hydrocarbon accumulation conditions and main controlling factors in the study area from the aspects of source rock,structure,reservoir,preservation and so on.Summarize the reservoir model and oil and gas enrichment law.Finally,the favorable reservoir is predicted based on the above research and reservoir inversion technology.