Method for constructing a mesh of a network of fractures from diagram of the voronoi

摘要

The process in order to optimize the use of a reservoir of fluid using a grid of a network of fractures, constructed from diagram voronoi. - on the basis of observations of the reservoir is built up a discrete network of fractures in which each fracture is represented by a polygonal isotropic finished plane of the point of view of its dynamic properties, a plane containing the segments of intersection with other fractures of the network. It is constructed a diagram of the voronoi on each plane of the fracture by positioning of the centers of cells voronoi on the segments of intersection, and it calculates the transmissivities between the centers of neighboring cells from the ratio between the surface of the neighboring cells and the distance between the neighboring cells. It is then possible to use the cells and the transmissivities to construct an image of the reservoir of fluid. Finally, it is used for this image and a flow simulator, in order to optimize the operation of the reservoir of fluid.