Extremely Low Permeability Oil Reservoir Seepage Flow Mechanism Research

This investigative is from the fluid in low permeability seepage flow mechanism , especially the low permeability reservoir porous media boundary theory sets out. By means of the research in low permeability oil reservoir medium deform no Darcy flow characteristic basical experiment, analyzing the affection of medium deform to porosity and permeability, the affection of temperature to permeability , the relationship permeability and actual stress ; By means of the researches in different fiuids and different permeability level and different peripheral pressure actuating pressure gradient. Disclosuring the low permeability reservoir nonlinearity flow mechanism and regularity. Utilize the result of laboratory experiments, study the low permeability reservoir nonlinearity flow development theories. And apply this theories in actual oil-field. Thereby develop low permeability reservoir economicaly and availably provide the theor guides and the technique supports.