摘要
渤海强非均质A油田因长期注海水开发,产出的H_(2)S浓度较高,目前油田含水率以超过90%,但采出程度不足20%,亟需攻关针对性化学驱提高采收率技术。针对目标油藏条件,首先开展室内实验筛选出适用的耐盐抗H_(2)S驱油剂,其次建立了注海水油藏H_(2)S生产与运移油藏数值模拟方法,同时模拟分析了其对聚合物驱效果的影响,最后优化设计了目标油田先导试验区的聚合物驱方案并评估了实施潜力。
Due to long-term seawater injection,the highly heterogeneous A oilfield in Bohai Sea has produced a high concentration of H_(2)S.At present,the water cut in the oilfield is over 90%and the recovery rate is less than 20%.It is urgent to tackle the problem of targeted chemical flooding to enhance oil recovery.According to the conditions of the target reservoir,firstly,indoor experiments were carried out to screen out the applicable salt resistant and H_(2)S resistant oil displacement agent,then the numerical simulation method was established to investigate the production and migration of H_(2)S underground during seawater injection in reservoir,and its influence on the of polymer flooding performance was simulated and analyzed,finally the polymer flooding scheme was designed and optimized in the pilot area of the target oilfield,and its implementation potential was estimated.
作者
李保振
王励琪
唐恩高
杨光
张延旭
张健
周文胜
LI Baozhen;WANG Liqi;TANG Engao;YANG Guang;ZHANG Yanxu;ZHANG Jian;ZHOU Wensheng(National Key Laboratory of Offshore Oil and Gas Exploitation,Beijing 100028,China;CNOOC Research Institute Ltd.,Beijing 100028,China;CNOOC Pengbo Operation Company,Tianjin 300457,China)
出处
《当代化工》
2025年第11期2637-2641,共5页
Contemporary Chemical Industry
基金
中海石油(中国)有限公司科技项目(项目编号:KJGG2021-05)。
关键词
海上油田
注海水
H_(2)S
聚合物驱
实验
数值模拟
可行性
Offshore oilfield
Seawater flooding
H_(2)S
Polymer flooding
Experiment
Simulation
Feasibility
