【摘要】 方法　运用构造物理分析方法 ,论述了储层中天然裂缝与压裂裂缝之间的关系。目的　确定天然裂缝对人工压裂裂缝的影响。结果　储层中不同天然裂缝组合及其与最大主应力间的相对方位 ,决定了压裂裂缝的方位和裂缝宽度等空间分布规律。结论　天然裂缝在压裂时活动与否 ,主要取决于地应力差、岩石和天然裂缝的抗张强度及裂缝与最大主应力方向间的夹角等因素 ;在压裂造缝时要充分考虑现今应力场特征、岩石和天然裂缝的力学特征及其组合规律更多还原

【Abstract】 Method\ The relationship between reservoir in-situ and fracturized fractures is analyzed with structural physics. Purpose\ To determine the effect of in-situ fractures upon artificial fracturized ones. Result\ The orientation, width and other space distribution regularities are dominated by various in-situ fracture combinations and their relative orientation with the largest main stress. Conclusion\ That the in-situ fractures are active or not depends primarily on in-situ differential stress, stress resistivity of rock and in-situ fractures, cross-angle between fractures with the largest main stress, etc. Therefore, before carrying out fracturing operation, thorough consideration should be given to the stress field exist, mechanical characteristics of rock and in-situ fractures and their combination regularities as well. \;更多还原