Infill drilling is now recognized as a viable improved recovery process. However, the reliable prediction of incremental recovery by infill drilling cannot be readily and accurately determined by present techniques. T...Infill drilling is now recognized as a viable improved recovery process. However, the reliable prediction of incremental recovery by infill drilling cannot be readily and accurately determined by present techniques. This paper proposes a hybrid predictive model of stream tube simulation and numerical simulation by using the contemporary theory of fluid flow in porous media. The model calculates the geometries of stream tubes, remaining oil distribution and water cut at different development stages in the near future, and uses a three-dimensional simulation to track fluid movement in each stream tube slice. This will help reservoir engineers to determine the feasibility of infill drilling. This predictive model is used to forecast the degree of control of well pattern, the ultimate incremental recovery of infill wells within an inverted 5-spot case in an oilfield and the economic benefit is also analyzed.展开更多
通过对工艺信息实质内容的深入分析,提出一种能全面描述和表达工艺信息的三维工艺模型(Manufacturing process model,MPM),该模型具有工艺过程信息的几何演进性和多视角性特点。模型通过定义MPM三元组,确立了工艺信息的过程性结构关系,...通过对工艺信息实质内容的深入分析,提出一种能全面描述和表达工艺信息的三维工艺模型(Manufacturing process model,MPM),该模型具有工艺过程信息的几何演进性和多视角性特点。模型通过定义MPM三元组,确立了工艺信息的过程性结构关系,可完整表达工艺信息的内在规律,有利于数字化工艺信息的产生与优化。同时,从便于工艺设计等下游后续过程使用工艺信息的角度,提出包括流、动态场景和快照表达模型在内的三维工艺模型的数字化多视角工艺信息表达框架(Manufacturing process as stream and snapshot,MPASS)。其中,流表达模型以制造活动过程之间的关系为组织形式对工艺活动的信息进行表达;动态场景表达则是从不同的对象视角进行投影,以灵活的形式对工艺信息进行组织和查看;快照表达利用静态对象几何和增量的方式,表达动态过程某一时间点的状态值和相关性。不同的表达数据可用于不同的后续制造与管理过程。展开更多
文摘Infill drilling is now recognized as a viable improved recovery process. However, the reliable prediction of incremental recovery by infill drilling cannot be readily and accurately determined by present techniques. This paper proposes a hybrid predictive model of stream tube simulation and numerical simulation by using the contemporary theory of fluid flow in porous media. The model calculates the geometries of stream tubes, remaining oil distribution and water cut at different development stages in the near future, and uses a three-dimensional simulation to track fluid movement in each stream tube slice. This will help reservoir engineers to determine the feasibility of infill drilling. This predictive model is used to forecast the degree of control of well pattern, the ultimate incremental recovery of infill wells within an inverted 5-spot case in an oilfield and the economic benefit is also analyzed.
文摘通过对工艺信息实质内容的深入分析,提出一种能全面描述和表达工艺信息的三维工艺模型(Manufacturing process model,MPM),该模型具有工艺过程信息的几何演进性和多视角性特点。模型通过定义MPM三元组,确立了工艺信息的过程性结构关系,可完整表达工艺信息的内在规律,有利于数字化工艺信息的产生与优化。同时,从便于工艺设计等下游后续过程使用工艺信息的角度,提出包括流、动态场景和快照表达模型在内的三维工艺模型的数字化多视角工艺信息表达框架(Manufacturing process as stream and snapshot,MPASS)。其中,流表达模型以制造活动过程之间的关系为组织形式对工艺活动的信息进行表达;动态场景表达则是从不同的对象视角进行投影,以灵活的形式对工艺信息进行组织和查看;快照表达利用静态对象几何和增量的方式,表达动态过程某一时间点的状态值和相关性。不同的表达数据可用于不同的后续制造与管理过程。
