METHOD OF IDENTIFYING STRUCTURE OF RESERVOIRS OF GEOLOGIC STRATA AND MACHINE-READABLE MEDIUM Russian patent published in 2013 - IPC G01V11/00 

FIELD: physics.

SUBSTANCE: during geophysical survey of a plurality of wells, logging data are obtained in form of relationships of change in specific parameters on the depth of each of the plurality of wells. A triangulation network is constructed on said plurality of wells. Automatic correlation is carried out for each pair of neighbouring wells on the triangulation network using at least some of said relationships. Automatic correlation results for the wells in each triangle of the triangulation network are compared in order to detect mismatches. Triangles in which the mismatch value as a result of correlation exceeds a predetermined threshold are selected. Correlation results are corrected in the selected triangles by making interactive changes to the correlation results of corresponding pairs of neighbouring wells. At the step of comparing correlation results, mismatch values at each depth are separately taken into account in the given triangle. At the step of selecting triangles, depths at which said mismatch values are maximum are selected. At the step of correcting correlation results, correlation results at the selected depths are corrected. The relationships of changes in specific parameters used are the relationships of changes in parameters from a group consisting of the following: spontaneous potential of strata, gamma-ray logging, contact logging, induction logging, neutron gamma-ray logging. At the step of selecting triangles and (or) at the step of selecting depths, the obtained results are displayed for visual perception and triangles are marked depending on the mismatch value.

EFFECT: high accuracy of identifying structure of reservoirs of geologic strata.

13 cl, 5 dwg