Research Article

Analyzing the Origin of Low Resistivity in Gas-Bearing Tight Sandstone Reservoir

Table 1

Statistics of basic reservoir characteristics.

StratumSandstoneLithologyPhysical property
Rock typeClay mineral (%)Porosity (%)Permeability (mD)

Gs2Thin sandbody developmentMainly fine sandstone, single lithology6-108-160.1-3
Gs3Thick sandbody developmentMainly fine sandstone, complex lithology, little pebbled sandstone2-88-120.3-3
Gs4Thick sandbody developmentMainly fine sandstone, complex lithology2-84-120.1-3