摘要
基于坐标转换和空间变换,将各向异性空间的地层几何参数和完井几何参数变换到各向同性空间,将得到的各参数经过等效处理后代入到各向同性空间的表皮因子模型,从而推导出适应于各向异性油藏定向井射孔完井的表皮因子计算模型,该模型考虑了储层伤害和压实带效应对表皮因子的影响。用有限元方法验证了该模型的准确性,并应用该模型进行了实例计算。该模型适应范围广,可用于定向井的完井设计和产能预测。
Based on the theories of coordinate conversion and space transformation, this paper first transforms the geometric param- eters of reservoir and completion in anisotropic space into isotropic space. Then it substitutes these parameters after equivalent treatment into the skin model in isotropic. Finally a computation model is developed for calculating the skin of directional wells with perforated completion in anisotropic reservoirs. The effect of formation damage and a crushed zone is considered in the model. The model proved to be right through finite element method, and a practical example was computed also. The model has wide adaptation range and may provide help for completion design and productivity prediction of directional wells.
出处
《石油钻采工艺》
CAS
CSCD
北大核心
2009年第1期42-46,共5页
Oil Drilling & Production Technology
基金
国家重大专项:"大型油气田及煤层气开发"子课题"复杂结构井优化设计与控制关键技术"(2008ZX05009-05)部分研究成果
关键词
各向异性油藏
定向井
射孔完井
表皮因子
anisotropic reservoir
directional well
perforated completion
skin factor
