渤海河流相Q油田提液挖潜规律分析

Law of Liquid Production in Increase in Fluvial Facies Reservoir of Bohai Q Oilfield

欧阳雨薇 龙明 张吉磊 李权 甘立琴

Yuwei Ouyang Ming Long Jilei Zhang Quan Li Liqin Gan

中海石油（中国）有限公司 秦皇岛32?6/渤中作业公司，天津 300459 中海石油（中国）有限公司天津分公司 渤海石油研究院，天津 300459

CNOOC China Limited QHD32?6/ Bozhong Operating Company，Tianjin 300459，China Bohai Petroleum Research Institute，TianjinBranch，CNOOC China Ltd. ，Tianjin 300459，China

以渤海Ｑ油田为例，针对渤海河流相油藏改善提液措施效果，统计Q油田近5年油井的提液措施效果。从静态、动态两方面分析油井提液的敏感性，总结油井提液措施效果在动态参数及静态参数上的变化规律，分析切实有效的提液时机与提液规模。结合油井措施效果，建立渤海河流相水驱油藏油井提液挖潜分类表。研究结果表明，渤海河流相油藏处于Ⅰ类提液阶段（2.0万mD ?m<地层系数≤4.0万mD ?m、0<流动系数≤300 mD ?m/(mPa ?s）、2.5万m3<提液前累计产油量≤5.0万m3、0<提液前累计产液量≤30万m3、65%≤提液前含水率<80%）的油井，提液后日增油量大于30.0 m3；处于Ⅱ类提液阶段的油井，提液后日增油量在15.0~30.0 m3；处于Ⅲ类提液阶段的油井，提液后日增油量小于15.0 m3。该提液高效挖潜时机表在渤海Q油田南区得到了验证，具有很好的实际应用参考价值，可为海上河流相水驱油藏高效开发提供依据。

Taking the Bohai Q oilfield as an example, this paper focused on how to improve the effect of liquid production increase in fluvial facies reservoir and counted the effects of measures to increase the production of oil wells in the oilfield in the past five years. The sensitivity of oil wells was analyzed from static and dynamic aspects,and the effects of liquid production increase measures on static and dynamic parameters were studied to analyze the effective timing and scale of increasing liquid production.According to the effect of the measures, classification schemes for the liquid production increase of water?drive reservoir in Bohai fluvial facies were established.The results show that if oil wells in the reservoir are in Class Ⅰ liquid production increase stage (20 000 mD ?m