This article discussed the fracture genesis and control factors of fracture based on the data of exploration,mechanical experiment and isotopic analysis of infilling matters in fracture.

• 本文根据咸水泉油田的实际勘探资料，结合室内力学实验和裂缝充填物的稳定同位素分析成果，对研究区裂缝的特征、成因及其控制因素进行了讨论。