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本文在搜集整理近几年国内30多个煤层气井层的压裂资料的基础上,分析了煤层气井压裂过程中瞬时停泵压力梯度与所生成裂缝形态的关系;分析了压裂施工曲线与裂缝形成过程中的各种动态特征,为进一步掌握煤层气井压裂施工规律及评价压裂效果提供了重要依据。
Based on the compilation of the fracturing data of more than 30 domestic coalbed methane wells in recent years, this paper analyzes the relationship between the instantaneous pressure drop and the fracture pattern during the fracturing process in coalbed methane wells. The relationship between fracturing construction curve and Various dynamic characteristics during the formation of fractures provide an important basis for further grasping the law of fracturing of coalbed methane wells and evaluating the fracturing effect.