| 摘要 |
<p>#CMT# #/CMT# The method involves identifying a set of cells containing carbon dioxide by an analysis of seismic data with a criterion, and identifying another set of cells containing shale by an analysis of the seismic data with another criterion. A number of identified cells containing both the carbon dioxide and the shale is determined from the sets of cells. The identification and determination steps are repeated by modifying one of the criterions, until the number of cells is below a selected threshold. #CMT# : #/CMT# An independent claim is also included for a method for monitoring a carbon dioxide geological storage site. #CMT#USE : #/CMT# Method for locating argillaceous zones e.g. shale lenses, present in a geological layer such as sandstone aquifer in which carbon dioxide is injected, from seismic data and from a discretization of the layer into a set of cells, to locate hydraulic barriers in the layer for monitoring a carbon dioxide geological storage site (claimed). #CMT#ADVANTAGE : #/CMT# The method enables disregarding the presence of wells so as to disregard well tests in a zone to be evaluated, and precise location of the argillaceous zones and zone bases forming the hydraulic barriers, and the possible connections between various reservoir compartments at the level of a carbon dioxide plume and in the entire geological layer far from the injection zone. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a vertical section of binary shale base distribution cube calculated from inverse model.</p> |
