摘要
针对渤海A油田河流相沉积、层系复杂、储层强非均质、层间矛盾严重、含水上升较快等问题,研究出与其地质油藏特点相适用的聚合物驱油藏数值模拟新方法,并进行了聚驱参数设计、优化。首先考虑目标河流相油田储层强非均质性特征,按照储层网格孔隙度、渗透率物性进行分级,并赋予了与其适应的相渗曲线及聚驱参数,用以精确描述目标油田的聚合物驱渗流特征;在此基础上对该类油藏的聚合物驱质量浓度、段塞组合以及聚驱后卡封高含水层等内容进行优化设计;最后优选出目标油田适用先高浓后低浓的变质量浓度段塞组合聚合物驱结合后期卡封高含水层的方案。本研究成果对于渤海河流相油田注聚方案的顺利实施、调整完善以及增油上产效果的保障具有重要借鉴意义。
In view of the strong heterogeneity of reservoir,complex layer-system,serious injection-production contradictions in the mid-high water cut stage,rapid rise of water cut in fluvial sedimentary oilfield A in Bohai Bay,a improved polymer flooding numerical simulation method was developed and the parameters of polymer flooding were designed and optimized.Firstly,the reservoir heterogeneity of the target fluvial oilfield was considered,and the reservoir porosity and permeability were graded,and the suitable relative permeability curve and polymer flooding parameters were set individually to describe the characteristics of polymer flooding in the target oilfield.On this basis,the polymer flooding concentration,slug combination and shutting of high water cut layer were optimized.Finally,the polymer flooding scheme with high-mid-low concentration slug combination was optimized for the target oil field.The results of this study have important reference significance for the implementation,adjustment and improvement of polymer injection scheme in Bohai fluvial oilfield.
作者
山金城
李保振
张延旭
王旭东
施雷庭
SHAN Jin-cheng;LI Bao-zhen;ZHANG Yan-xu;WANG Xu-dong;SHI Lei-ting(CNOOC Pengbo Operation Company,Tianjin 300457,China;China State Key Lab of Offshore Oil Exploitation,Beijing 100028,China;CNOOC Research Institute Co.,Ltd.,Beijing 100028,China;State Key Laboratory of Oil&Gas Reservoir Geology&Exploitation,Southwest Petroleum University,Chengdu 610500,China)
出处
《当代化工》
CAS
2021年第1期209-212,共4页
Contemporary Chemical Industry
基金
十三五“重大专项课题”(项目编号:2016ZX05025-003)
关键词
河流相
聚合物驱
变相渗曲线
参数优化
Fluvial reservoir
Polymer flooding
Variable relative permeability curve
Parameter optimization
作者简介
山金城(1974-),男,天津市人,高级工程师,研究方向:海上油气田开发与油藏模拟。E-mail:shanjinchen1974@126.com。