Method for estimating the physical parameters of a geological formation

摘要

The method involves filling heavy liquid (L2) i.e. slurry, in a tube (17) of a well (10) and a lower part of an annular space (19) around the tube. A remaining part of the space is filled with light liquid (L1) e.g. light hydrocarbon, such that the liquids present an interface (34) in the space. The hydraulic equilibrium in the liquids is disturbed. The evolution of quantities relative to fluid properties is measured. The hydraulic behavior of the liquids is simulated. The measured and simulated evolutions are compared to identify optimal values for parameters of a geographical formation.