广东石油化工学院学报2025，Vol.35Issue(3)：1-4,4.
渤海小气顶油藏提液研究
Study on Extracting Fluid from Small Gas Cap Reservoir in Bohai Sea
摘要
Abstract
In the process of gas cap development,as the gas cap enters the reservoir,the oil production ability of the oil well will decrease,and the actual production index is less than the theoretical value.To determine the reasonable time and range of gas cap reservoir,the Correction Coefficient is introduced to calculate the relative permeability of oil phase under different production rates,thus,the relative permeability curves of oil and water under different recovery rates and the dimensionless recovery index chart are corrected.In addition,the relationship between bottom hole flowing pressure and dimensionless oil production under different water cut conditions is established according to the inflow performance equation of oil phase.According to the chart,we can determine the oil recovery speed,time,and range of extracting fluid of the gas cap reservoir with different water cut.From the chart,we can see that with the increase of oil production rate,the maximum value of the liquid production index gradually decreases,the timing of the liquid production index recovery becomes later and later,and the extent of liquid increase and oil increase also decreases with the increase of water content.The research effectively guides the liquid extraction of small gas cap reservoirs and provides a scientific basis for the later development of gas cap reservoirs.关键词
小气顶油藏/渗透率校正系数/油相相对渗透率/采油速度/提液幅度Key words
small gas-cap reservoir/permeability correction factor/oil phase relative permeability/oil production rate/liquid extraction range分类
能源科技引用本文复制引用
王雨,杨贯虹,王龙,陈存良,杨明..渤海小气顶油藏提液研究[J].广东石油化工学院学报,2025,35(3):1-4,4.基金项目
国家科技重大专项项目(YXKY-2018-TJ-04) （YXKY-2018-TJ-04）
