分层注水技术在中亚RN 非均质碳酸盐岩油田的应用

Application of selective water injection in heterogeneous carbonate reservoirs in RN Oilfield, Middle Asia

温晓红 邵龙义 田立志 齐立新 尤建广

WEN Xiaohong SHAO Longyi TIAN Lizhi QI Lixin YOU Jianguang

中国矿业大学，北京　100083 中国石油勘探开发研究院廊坊分院，河北廊坊　065007 中国石油阿克纠宾油气股份公司，北京　100101 冀东油田公司勘探开发研究院，河北唐山　063000 CNODC 生产作业部，北京　100101

China University of Mining & Technology, Beijing 100083, China Research Institute of Petroleum Exploration and Development-Langfang, Langfang 065007, China CNPC-International Aktobe Petroleum, Aktobe 030000, Kazakstan Exploration and Development Research Institute of Jidong Oilfeild Company, Tangshan Hebei 063000, China CNODC, Beijing 100101, China

RN 油田是中石油海外经营开采最早的、中亚规模较大的碳酸盐岩油藏。油田自然递减率高，主力油藏地层压力保持水平低，纵向动用程度不高，层间矛盾大。结合油田实际情况，研究了3 种分层注水技术——液力投捞分层注水、同心双管分层注水、桥式偏心分层注水技术。现场应用表明，桥式偏心分层注水和同心双管分注技术应用效果显著，液力投捞分注技术不适用于该油田。该研究对海外碳酸盐岩油田开发具有重要指导意义。

RN oilfiled is the earliest large oilfield in Middle Asia developed by Petrochina overseas. The oilfield faced high production decline, low reservoir pressure maintaining, low vertical producing degree, serious conflicts between layers. According to actual conditions of the oilfield, three types of effective and economic separated layer water injection techniques have been selected: separated layer water injection by hydraulic running and pulling, concentric pipe separated layer water injection and bridge-type eccentric separate layer water injection. Field application shows bridge-type eccentric separated layer water injection and concentric pipe separated layer water injection work well in this oilfield, separated layer water injection by hydraulic running and pulling is not suitable for this field. The research results are instructive to the high efficient development of overseas carbonate oil fields.

10.13639/j.odpt.2014.02.028