The paper studies the effect of seepage force on the stress field of hollow cylinder of compacted cohesive soil revealing for the first time the mechanism of hydraulic fracturing test.
本文分析了渗水力对中空圆柱试件应力场的影响，首次揭示了中空圆柱试件水力劈裂破坏的力学机理，试验值与理论分析值相互吻合。
Hydraulic fracturing has become the common and effective stimulation to exploit low permeable reservoirs. Well test plays special role in the performance analysis of fractured Wells.
水力压裂已成为开发低渗透油气藏的较为常用且相当有效的增产措施，试井在分析压裂井动态方面有其独特的作用。
Downground test data of hydraulic fracturing process is important foundation of fracturing evaluation and technique improving.
水力压裂过程的井下测试是压裂效果评价、改进压裂工艺的重要依据。
Buildup test is now recognized to be the most effective method for evaluation of hydraulic fracturing performance.
目前对水力压裂效果评价最有效的方法是压力恢复试井。
Hollow columns were made with sand-cement grout as test samples, on which the failure characteristic was studied in the condition of tri axis hydraulic fracturing.
选用水泥砂浆作为试验材料，研究其在水力劈裂条件下的破坏特征。
Hollow columns were made with sand-cement grout as test samples, on which the failure characteristic was studied in the condition of tri axis hydraulic fracturing.
选用水泥砂浆作为试验材料，研究其在水力劈裂条件下的破坏特征。
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