The low resistivity oil layers include those layers with high salinity formation water, high water saturation and low oil saturation, or riched in argilliferous sandstone low resistivity oil layers.

• 摘要低电阻率油层包括含有高矿化度地层水的油层、高含水饱和度和低含油饱和度的油层或富含泥质的砂岩低电阻油层等。