SEGJ Technical Conference

Three dimensional inversion using two dimensional resistivity survey data for curved survey lines

Abstract There are many sites in which straight survey lines can not be arranged due to limitation of land use and surface structure. We conducted a labor saving three-dimensional(3-D) resisutivity survey with curved survey lines on a survey site where the Ryukyu limestone is distributed. We were able to identify the 3-D resistivity anomalies presumed to be related to the doline. This experiment shows curved survey lines are effective and flexible to collect apparent resistivity data in the 3-D resistivity survey. Also, the necessity of the 3-D resistivity survey for a complex geological structure can be confirmed.