Comparison Of Shale Gas Reservoir-forming Conditions Of O3w-s₁l Between Fuling And Northwestern Hunan

The predecessors have systematically investigated and studied the distribution of shale gas in Hunan Province,but have not made any substantial breakthroughs.This paper analyzes and compares the shale gas accumulation conditions in the successful shale gas exploration area of Fuling area,and summarizes the factors of shale gas accumulation,so as to compare the key parameters of shale gas reservoirs in typical areas of Hunan Province,and analyze The key factors that restrict the breakthrough of shale gas exploration in Hunan Province.This paper analyzes the stratigraphic characteristics,lithofacies characteristics and enrichment rules of the Wufeng-Longmaxi dark mud shale in Fuling and the northwestern Hunan,and compares the organic matter types,organic matter abundance,organic matter maturity,mineral composition characteristics and pores of organic black shale.The key parameters of shale gas reservoirs such as characteristics and gas-bearing characteristics are studied.At the same time,the reservoir forming conditions and exploration success experience of the typical Fuling Wufeng-Longmaxi Formation shale gas field are studied.The systematic analysis of the reservoir formation theory of typical blocks in Fuling area Conditions for accumulation.In order to compare the key parameters of the Wufeng-Longmaxi Formation shale gas reservoir in northwestern Hunan,the burial depth,thickness,organic matter type,organic matter abundance,organic matter maturity and mineral composition characteristics of the Wufeng-Longmaxi Formation shale in northwestern Hunan are summarized.The key parameters of shale gas reservoirs,such as pore characteristics,are used to find the key factors that restrict the success of shale gas exploration in Hunan Province.In the high-evolution and complex structure of the northwestern part of the shale gas exploration,the primary consideration of the structure and preservation conditions,and then consider the thickness of the shale gas source rock,organic geochemical characteristics,mineral composition,etc.,in various elements of accumulation In the cross-analysis analysis,finding the best combination of selection is a gas-seeking idea in Hunan Province.