陈志环,侯维虹,刘伟杰
CHEN Zhi huan;HOU Wei hong;LIU Wei jie(No 1 Oil Production Company of Daqing Oilfiled Company Ltd.;

• 1:大庆油田有限责任公司第一采油厂
• 2:大庆油田有限责任公司第一采油厂
• 3:大庆油田有限责任公司第一采油厂 黑龙江大庆163111
• 4:黑龙江大庆163111

摘要(Abstract)：

在研究聚驱过程中的吸水指数变化规律时 ,发现聚驱后油层性质也发生了变化 ,其中岩石孔隙半径增大 ,亲水性增强 ,从而导致流体相对渗透率曲线也发生偏移。同时还研究了吸水指数的变化与油层性质变化的相关性 ,发现注聚井的吸水指数随着生产井含水率的下降而下降 ,随着生产井含水率的上升而上升 ,且吸水指数上升过程向上偏离于吸水指数的下降过程 ,最后 ,提出了利用吸水指数曲线确定增产措施的最佳时机
During the course of polymer flooding,it find reservoir nature changed in post polymer flooding through study the index of absorbing water change,among them the hole radius of rock increases,the hydrophile get consolidated,this lead to the fact that excursion takes place in the relative permeability curve of fluid.At the same time,we studied the relativity of the index of water absorbing change and reservoir nature change, and found that the water absorbing index of inject polymer well declined with the drop of the water cut of production well, and rose with the lift of it, further more, the procedure of the index of water absorbing rise deviate from that decline, we has proposed the opportunity that is fixed on the measure to increase the production,which utilizing the curve of water absorbing index, and summarize out adjust the best opportunity that the perforation two times and degree of depth cut open is the time that the index of water absorbing and water cut beginning to rise.

关键词(KeyWords)： 吸水指数;孔隙半径;含油饱和度;泥质含量;驱油效率
water absorbing index;radius;oil saturation;displacement efficiency;relative permeability

Abstract:

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基金项目(Foundation):

作者(Authors): 陈志环,侯维虹,刘伟杰
CHEN Zhi huan;HOU Wei hong;LIU Wei jie(No 1 Oil Production Company of Daqing Oilfiled Company Ltd.;

参考文献(References)：

• [1]陈永生油藏流场[M]北京:石油工业出版社,1998