中原油田高含水井堵水界限研究

Research on Water Plugging Threshold of High WaterCut Wells & Zones of Zhongyuan Oilfield

李　琪¹,周跃忠²,高　平¹

Li Qi , Zhou Yuezhong and Gao Ping

1. 中原油田分公司开发事业部,2.中原油田分公司勘探开发科学研究院

Oilfield Development Department, Zhongyuan Oilfield Company, SINOPEC Henan 457001, P. R. China

从油井堵水对油藏开发可能造成影响的主要方面入手, 分析研究了高含水井的堵水时机。封堵层的最低含水界限一般控制在94%～ 95% , 选择井网注采或油层非均质性造成油层平面矛盾较大的油层进行堵水。结合中原油田的具体情况, 提出了高含水井层的堵水界限和实施堵水的具体条件。

Suitable water shutoff time of high water cut wells & zones was researched based on aspects in which water shutoff may influence production of oil reservoir. The minimum of water cut in plugging formation is between 94 to 95 percent. The oil reservoirs, in which the horizontal contradiction of oil reservoir created by selection of injection production well pattern or reservoir heterogeneity is large, were plugged. The detailed factors of water shutoff and its limit was submitted combining with the practices in Zhongyuan Oilfield.