宝浪低渗透油藏裂缝在注水开发中的作用  

Effects of Fractures on Waterflooding in Baolang Low Permeability Reservoir

作　　者：郑斌[1] 李淑敏[1] 杨军[1] 周鹤[1] 杜凤兰 

机构地区：[1]河南石油勘探开发研究院,河南南阳473132 [2]河南石油测井公司

出　　处：《河南石油》2001年第4期28-29,32,共3页Henan Petroleum

摘　　要：宝浪低渗透油藏由于受构造及成岩作用的影响，裂缝比较发育，但裂缝分布不均衡，裂缝主要分布在构造轴部、东南部和东北翼大断层附近。裂缝发育区油水井生产特征与不发育区不同，即：注水井吸水能力强，采油井生产能力旺盛，油井水窜严重，方向性比较明显。宝浪低渗透油藏裂缝在油田注水开发中的作用，有利方面是提高油层渗透性；不利方面是裂缝易引起水窜，增大开发难度。注水开发时，要充分发挥有利因素，避免不利因素的影响，提高开发效果。Fractures are well developed in Baolang low permeability reservoir as a result of structural and diagenetic factors. However, fracture distribution is uneven with most fractures distributed along structural axis and near the large faults in the southeast and northeast The producing characteristics of development wells in areas with well developed fractures are different with that in areas with poorly developed fractures: water absorption capability of water injection wells is strong; production capacity of producers is high; and water channeling is serious and has obvious directivity in oil wells. The positive effects of fractures on waterflooding in Baolang oilfield are enhancement of reservoir permeability while adverse effects are water channeling.

关 键 词：低渗透油藏 裂缝 注水开发 油田开发 

分 类 号：TE348[石油与天然气工程—油气田开发工程] TE357