摘要
低渗压裂开发技术在海洋油田取得了较好的开发效果,但受海上作业成本限制,压裂规模较小,且出现递减较大等问题。为了经济有效地压裂动用低渗油藏,从压裂参数优化角度出发,通过建立低渗油藏实际地质模型,应用数值模拟对裂缝高度、裂缝半缝长度、裂缝间距等关键参数进行优化,得到了较优的压裂参数推荐值,并据此对压裂方案施工参数进行了优选,为相似储层参数油藏后续压裂开发方案设计提供一定的指导和借鉴。
The low-penneability fracturing development technology has achieved good development results in offshore oilfield,but limited by the cost of offshore operations,the problems appeared like the small fracturing scale and the large decline.In order to fracture low-permeability reservoirs economically and effectively,this paper starts from the perspective of fracturing parameter optimization,establishes an actual geological model of low-permeability reservoirs,and applies numerical simulation to optimizing key parameters such as fracture height,fracture half—fracture length,fracture spacing,etc.and thus obtaining optimal recommended fracturing parameter values.Then the fracturing plan construction parameters are optimized accordingly,providing certain guidance and reference for the design of subsequent fracturing development plans for reservoirs with the similar reservoir parameters.
作者
石飞
吴君达
孙藏军
常涛
李进
SHI Fei;WU Junda;SUN Cangjun;CHANG Tao;LI Jin(Tianjin Branch,CNOOC Limited,Tianjin 300450,China)
出处
《石油工业技术监督》
2023年第5期63-68,共6页
Technology Supervision in Petroleum Industry
关键词
低渗油藏
压裂
能量补给
压裂参数优化
数值模拟
low permeability reservoir
fracturing
energy replenishment
fracturing parameter optimization
numerical simulation
