摘要
针对呼和诺仁油田某区块含有地层倾角的特点,以分流量方程为基础,讨论地层倾角对油田注水开发的影响。结果表明:含有地层倾角的油田,位于注水井下方的油井较位于注水井上方的油井见水早,见水后含水上升速度较快;随着地层倾角的减小,含水率比值(Fw下/Fw上)逐渐变小,且当地层倾角小于5°时,可以忽略地层倾角对注水开发的影响;在某一地层倾角下,含水率比值(Fw下/Fw上)随渗透率的增大而增大,随产量的增大而减小;当水流上下方的井均达到较高含水饱和度时,地层倾角的影响变得很小。
According to the angle of bedding characteristics in huhenuoren oilfield, this paper discusses the effection of water flooding development about clip angle based on fractional flow equation . The results show that oil well infe- rior of water well breakthrough earlier than upper site of water well about the angle of bedding oilfield, and the wa- ter cut rises up quickly after water breakthrough. Along with decreased angle of bedding, ratio of water cut （ Fwa/ Fwu ） gradually decreases, and the effection of waterflood development could be neglected in case of the angle of bedding being smaller than 5°. The ratio of water （ Fwa/Fwu ） cut increases along with increasing permeability and decreased with increasing produce in some angle of bedding. The effect of angle of bedding would be little when the oil well achieves a higher water saturation which upper and lower site of fluent.
出处
《重庆科技学院学报（自然科学版）》
CAS
2013年第1期49-51,共3页
Journal of Chongqing University of Science and Technology：Natural Sciences Edition
基金
中油股份公司重大科技专项(dq-2008-yc-ky-012)
关键词
地层倾角
分流量
含水率
formation dip
fractional flow
water cut
