We investigate the assignment of error bars to future ow predictions based upon an optimized parameter set obtained from history matching. The error bars reeect measurement errors and uncertainty in the optimum parameter values obtained.

Abstract The interlayer interference is very serious in the process of water flooding development, especially when reservoir adopts commingling production. implementation various mitigation measures requires that production performance parameters and remaining oil distribution each layer should be clearly defined, accurate splitting wells key. In this paper, five-spot pattern simplified to a si...

In view of the problem huge computations and multiple solutions, a method for optimizing accelerating progress history matching by using material balance analysis was established. Based on simple measuring data, such as average pressure, daily production rate PVT test, model can be constructed three phase system hydrocarbon reservoir. According to calculation, original oil in place aquifer para...

Abstract We apply the Darmois and $C^3$ matching conditions to three different spherically symmetric spacetimes. The exterior spacetime is described by Schwarzschild vacuum solution whereas for interior counterpart we choose perfect fluid solutions with same symmetry. show that are satisfied in all cases not fulfilled. argue this difference due a non-physical behavior of pressure on surface.

Let $G=(V,E)$ be a simple connected graph. A matching $M$ in a graph $G$ is a collection of edges of $G$ such that no two edges from $M$ share a vertex. A matching $M$ is maximal if it cannot be extended to a larger matching in $G$. The cardinality of any smallest maximal matching in $G$ is the saturation number of $G$ and is denoted by $s(G)$. In this paper we study the saturation numbe...

Abstract One key hypothesis explaining the fate of exotic species introductions posits that establishment a self-sustaining population in invaded range can only succeed within conditions matching native climatic niche. Yet, this remains untested for individual release events. Using dataset 979 173 mammal worldwide, we show climate-matching to realized niche, measured by new Niche Margin Index (...