Influence of effective pressure on the physical property in low permeability deformation reservoir;

Research on Non-Darcy flow in low permeability gas reservoirs;

Research on damage test of water injection in low permeability reservoir of Daqing Oilfield;

Reservoir-forming mechanism of low-permeability reservoir of Fuyu Formation in southern Songliao Basin;

Influences of effective pressure on petrophysics of low-permeability reservoirs with deformable medium;

Research and application of the low-permeability filming drilling fluid

Application of tip screening out and fracturing technology in transformation of low permeable reservoir;

A preliminary view about indexes of low permeable volcanic reservoir evaluation;

This paper takes the low permeable fractured reservoirs in Wei 2 fault block as the object.

Research on characters of non-Darcy flow and starting pressure gradient of low permeability reservoir were foundation of reservoir production.

It is thought that main controlled factors of low permeability reservoir are zone of deposition, carbonate content shale content, granul-arity median and so on.

Knowing the relationship between permeability and pressure is important to scientific and reasonable development of low permeability reservoirs.

In block A in Erlian oilfield the interpretation result indicates that some reservoirs with low porosity and low permeability have poor oil & gas reserve,but have high production capability after being fractured.

Considering the characteristics of low porosity and low permeability in the depression, effective evaluation methods for shale volume, porosity, medium diameter of particle, oil saturation and permeability are presented using Artificial Neural Network technique combined with con.

Based on coal seam gas industry that features low permeability in coal reserve bed in China,it is discussed the feasibility of an operational technology,well drilling,will be done by drilling holes parallel to the level of coal bed outside of the bed or projecting holes in multilayer for large slope pits with low polution for coal reserve bed.

Based on the study of ultra-low permeability well pattern deployment in foreign countries,and with the combination of the practical exploitation in Daqing oilfield,this paper analyzes the major factors which influence the development effect of the ultra-low permeability oil pool in the periphery of Daqing oilfield.

In order to develop these reserves,we carry out a lot of field experiments for ultra-low permeability reservoirs in Fuyang oil layer at Block Zhou 201 and use long well spacing and short row spacing rectangular pattern for fracturing and waterflooding development.

As for the low and ultra-low permeability oil reservoirs, the maximum production after pressure can only be obtained by laying the same emphasis on long seams and the relatively high dimensionless fracture conductivity.