Gas reservoir in Xujiahe Section 2 in west Sichuan are low porosity, low permeability, deep, high formation pore and fracture pressure, etc.
川西须家河组2段气藏属于低渗低孔致密深层气藏，地层压力和破裂压力高。
The upper Paleozoic reservoir in Changqing gas-field is a low pressure and low permeability reservoir.
长庆气田上古生界气藏属低压低渗储层。
This paper introduces the features of coal-bed gas reservoir, and points out that most of coal-bed gas reservoir in China are of low pressure, low permeability and low productivity.
介绍了煤层气储层特点，指出我国煤层气储层多为低压、低渗透、低产能的。
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