Chevron U.s.a. Inc.

William Stephen Kowalik

Luc Vincent

Jesse Mathias Lomask

William Charles Corea

Kevin Deal

William John Schweller

William Harrison Crane

Antony Marsh

Douglas Francis Goff

Sebastien Bombarde

Jason Michael Francis

Sandra Lee

William R Volz

Younis Altobi

Richard C Jones

Embodiments of methods of creating and interpreting animated mosaics of multiple seismic surveys are disclosed herein. Volumes from individual seismic surveys may be flattened in each seismic cube. Animations/movies may then be produced by capturing a series of z-slice movie frames through each of the flattened volumes. The individual sets of movie frames are geo-referenced to a basemap image of well locations using appropriate composition software. Where overlap exists between surveys, the surveys are prioritized and lower priority volumes are masked by higher priority volumes. This technique provides a matched, unbroken image across overlapping volumes at each stratigraphic layer. As the movie or animation plays, a moving arrow pointer shows the vertical position of the current movie frame on a stratigraphic section consisting of a seismic reference section that is optionally labelled with suitable regional sequence names and other stratigraphic zonation data.

Method of creating and interpreting animated mosaics of multiple seismic surveys

A horizon-picking solution for a geological volume of interest is determined. To determine the horizon-picking solution, a plurality of horizons through the geological volume of interest included in an initial horizon-picking solution are perturbed to more closely follow the local character of measured data related to the geological volume of interest. In particular, the horizons may be perturbed simultaneously by blending the initial solution with a secondary horizon-picking solution that automatically identifies a plurality of horizons through the geological volume of interest that follow the measured data related to the geological volume of interest.

System and method for perturbing an initial horizon-picking solution to follow local features of a volume

A method of analyzing characteristics of a subterranean formation includes transmitting a signal at least partially into a material of the subterranean formation such that the signal is transformed in a manner indicative of a characteristic of the material, receiving the transformed signal from the material, converting the transformed signal into image data indicative of the characteristic of the material, applying a first set of machine executable rules to the image data to produce segmented image data, wherein portions of the image that are sufficiently related according to the applied rules are grouped into segments, and analyzing, according to a second set of machine executable rules, the segmented image data to produce a geological profile of the subterranean formation.

Automated borehole image interpretation

A computer implemented method for interpreting faults from a fault-enhanced 3-D seismic attribute cube. The method includes the steps of extracting faults from a 3-D seismic attribute cube, and of calculating a minimum path value for each voxel of the 3-D seismic attribute cube. A fault network skeleton is extracted from the 3-D seismic attribute cube by utilizing the minimum path values which correspond to voxels within the 3-D seismic attribute cube. The individual fault networks are then labeled, and a vector description of the fault network skeleton is created. The fault network skeleton is subdivided into individual fault patches wherein the individual fault patches are the smallest, non-intersecting, non-bifurcating patches that lie on only one geologic fault. The individual fault patches are then correlated into a representation of geologic faults.

Process for interpreting faults from a fault-enhanced 3-dimensional seismic attribute volume

Growing community of inventors

Subiaco, Australia

William Stephen Kowalik