Expressions of total residual pore pressure and critical ratio of pore pressure in different failure stages of liquefaction in saturated sand are deduced based on the dynamic tri-axial tests.
The pore pressure also strongly influences the state of stress in a formation (by as much as 50%) and is therefore a critical piece of information for designing hydraulic fracturing treatments.
孔隙压力也强烈地影响地层中的(多达50%)的应力状态,并针对设计水力压裂处理而言是一项重要信息。
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The better the pore structure of reservoir, the higher the tested productivity and the critical water saturation, the lower the correspondent cutoff of effective porosity.