STEVEN GERARD CAMPBELL
Pilots at Cyn Trce Dr, Houston, TX

6925386, Aug 2, 2005

Sep 12, 2003

10/662106

William B. Pramik - Katy TX, US
Aloke K. Mathur - Houston TX, US
Steven B. Campbell - Houston TX, US
Andrew F. Lubrano - Sugar Land TX, US
Sverre L. Strandenes - Stabekk, NO
Andrew Samuel Long - South Perth, AU
Christian Strand - Oslo, NO
Barbara Janina Danielsen - Langhus, NO
Jostein Lima - Oslo, NO

PGS Americas, Inc. - Houston TX

G01V001/28

702 14

In a seismic survey, idealized subsurface illumination is generated using idealized survey data. Then, the following three steps are performed during each of a sequence of time intervals during the seismic survey. First, an incremental portion of actual survey data is collected, using data acquisition equipment at a data acquisition location. Second, the incremental portion of actual survey data is communicated from the data acquisition location to a data processing location. Third, an incremental portion of actual subsurface illumination is generated using the incremental portions of actual survey data, to incrementally generate actual subsurface illumination at the data processing location. It is determined if additional data acquisition is desirable by comparison of the idealized subsurface illumination and the actual subsurface illumination, in the data processing location. Then, any desirable additional data acquisition is performed in the data acquisition location before the data acquisition equipment leaves the data acquisition location.

7689396, Mar 30, 2010

May 24, 2002

10/155158

Steven Blake Campbell - Houston TX, US

PGS Americas, Inc. - Houston TX

G06G 7/50

703 10

In one embodiment the invention comprises a system for planning a seismic survey based on a model of a subsurface formation in which a computer simulation is generated having sources and receivers positioned in selected locations with respect to the model. Ray tracing is performed from the sources to estimate a propagation ray path of seismic signals emanating from the source locations, and emergent points are determined at which ray paths reach the earth's surface following reflection from a subsurface area of interest. A survey may then be designed and performed in which receiver positions are concentrated at the areas where the emergent points are concentrated.