Advances in Exploration and Exploitation Technologies of Low-permeability Oil and Gas

The classification,abundance,distribution,exploration and exploitation technologies of low-permeability oil and gas resources at home and abroad were systematically investigated.It has become an international hot research field for the technologies of low-permeability reservoir identification and adaptation,and the drilling technologies.The current and future focus of the low-permeability oil and gas resources will be concerned as follows: low permeability reservoir quality prediction,fracturing,horizontal well,multi-branch wells,slim hole,advanced injection,explosion layer production,microbial enhanced oil recovery,etc.It is necessary for China to further develop the ultra-deep drilling technique,high-resolution seismic exploration and interpretation techniques on complex surface conditions(i.e.desert mountain),complex lithologic logging layer technique,low-permeability oil-bearing zone optimization technique,micro-pore structure technique for low-permeability reservoir,pre-fissure prediction technique for low-permeability reservoirs,development and fracturing optimized injection-production system technique,horizontal wells,fracturing technique for complex structure well,gas injection enhanced oil recovery technique for low-permeability reservoirs,and slim hole technique.