摘要
L礁灰岩油田岩心压汞及GVR成像测井资料均显示储层裂缝发育,且油井生产动态也表现出了明显的双重介质油水渗流特征,油田开发中后期形成了“裂缝网状水淹、基质剩余油富集”的油水分布规律。为了合理地表征裂缝和孔隙对油水运动规律的综合作用,提高油藏动态模型预测指标的可靠性,本次研究结合双重介质地质建模成果,建立了双重介质油藏数值模型。与原单重介质模型相比,新模型能够更好地表征L油田高含水期的油水渗流规律,有利于今后调整井设计和剩余油挖潜,并可为注气混相驱提高采收率的研究提供支撑。
Both mercury intrusion core experiment and GVR well logging show that L reef limestone reservoir is complicated with numerous natural fracture.Well performance also behave as oil-water seepage of dual porosity medium obviously.During mid-late development period,the oil-water distribution mode form in field,fracture network is flooded by water and matrix is rich in oil.To get correctly characterization synthetic effect to oil-water seepage of fracture and pore,improve predictor reliability of reservoir dynamic model,the research of dual porosity medium reservoir dynamic modeling is carried out upon results of dual porosity medium geological modeling.New dual porosity dynamic model can best characterize oil-water seepage of high water cut period in L field.It's beneficial to adjustment well project designation and remaining oil exploitation from now on.The EOR research of miscible drive by gas injection can be carried out upon this.
作者
张晓林
李伟
汤小龙
孙更涛
徐伟
ZHANG Xiaolin;LI Wei;TANG Xiaolong;SUN Gengtao;XU Wei(CNOOC China Limited,Shenzhen Branch,Shenzhen Guangdong 518054,China)
出处
《石油化工应用》
CAS
2022年第6期80-85,共6页
Petrochemical Industry Application
基金
中海油重大科技专项课题四“礁灰岩油田高效开发技术研究”,项目编号:CNOOC-KJ 135 ZDXM 37 SZ 04 SZ。
关键词
礁灰岩
裂缝
双重介质
数值模拟
窜流
reef limestone
natural fracture
dual porosity medium
numerical simulation
channeling
