摘要
提出了一个评价油井转注降低油水井数比改变液流方向措施可行性的计算公式，其推导基础是投入产出平衡原则。公式全面考虑了影响改变液流方向效果的4类14个主要因素：①油藏参数：油水粘度比、油藏面积、油层厚度、平面渗透率对数正态分布变异系数和概率50％处渗透率；②井冈参数：油水井数比、井网密度、开距不均匀系数、转注使油水井数比降低的系数；③开发参数：转注时油藏综合含水率、转注时的采油速度；④经济参数：原油价格、平均单井转注费用、单位经营成本。分析认为提出的公式具有代表性。
A formula for evaluating feasibility of measuring for changing direction of liquid flow by relying on changing type of wells to reduce producer-injector ratio has been proposed, which the derived basis is the principle of balance of input and output ratio.The formula overall considered the 14 main factors affecting the effects of changing direction of fluid flow:①reservoir parameters: oil-water viscosityratio, reservoir area, oil reservoir thickness, variancecoefficient and permeability at probability 50% oflogarithmic normal distribution of plane permeability;②well pattern pararneters: producerinjector ratio, well spacing density, nonuniformcoefficient of well spacing, coefficient of reducingpreducer-injector ratio by relying on changing type ofwells;③development pararneters: comprehensivewater cut and rate of oil preduction at changing typeof wells;④econdric paoneters: price of crude oil,average price changing type of wells in single well,operating cost in unit volurn of oils, so it isconsidered that the proposed formula isrepresentative.
出处
《断块油气田》
CAS
2000年第3期29-32,共4页
Fault-Block Oil & Gas Field
关键词
水驱油藏
液流方向
可行性
评价
公式
油田注水
Water drive reservoir, Liquid flow, Direction Feasibility, Evaluation, Well pattern, Development, Economy
