Method for 4D water permeability analysis of geological features fluid storage

摘要

(57) Abstract This invention the filter does the micro-earthquake activity which is induced while producing the fluid resource from storage, classifies, it is something in order to analyze, makes the direct 4 dimensional measurement of important other oil stratum stones and rocks physical quality possible for everything or the many component of water permeability field, and the analysis and monitoring of storage. The seismic activity which it is related to water permeability field is arranged symmetrically the fill point inside the optional well which is used because of this object (Figure 1) to in regard, it is identified two general circular internal that space and depending upon time position. The conical axis is parallel vis-a-vis the largest compressed stress direction of initial load field. When it increases, seismic activity the fill point (Figure 2) from moves fluid pressure to facing outside rapidly. Seismic activity moves in markedly bigger portable ratio, than portable ratio of the flow of diffusivity of darcy type covers the distance which is measured at the unit of kilometer. Seismic activity occurs by the fracture which aeromechanics is connected vis-a-vis the fill well, includes the water permeability field which it is related to that well. You can use the map of the water permeability field which is identified by this expedient, even in order to guide filling up, developing of succession and arranging the fill well. Furthermore, this invention makes that the latent hazard for field inhurasutorakuchiya by making the observation of be active deformation field possible, is recognized possible. In addition, this invention forms the important expedient of 4D be active earthquake analysis of the place where movement of the fluid is monitored by estimating fluid route.