Alexander Martinez

US Patent:

20100177595, Jul 15, 2010

Filed:

Jan 7, 2010

Appl. No.:

12/683869

Inventors:

Vijay Khare - Sugar Lane TX, US
Alexander A. Martinez - Houston TX, US
Michael P. Matheney - The Woodlands TX, US
Reeshidev Bansal - Houston TX, US

International Classification:

G01V 1/28

US Classification:

367 73

Abstract:

Method for aligning converted wave seismic reflection data (PS data) with conventional PP seismic reflection data so that both data types may be used to more accurately image the subsurface for hydrocarbon exploration or field development. Amplitude vs. angle (AVA) or amplitude vs. offset (AVO) attributes of PP and PS seismic data are identified and defined, which attributes are theoretically expected to be in phase and optimize seismic resolution in the data. In one embodiment of the invention, such attributes are calculated (), then the same horizons are identified in a series of PP attributes and in a series of PS attributes, then the second series is aligned with the first at the horizon locations (), then a time transfer function is generated and applied to the PS mode data (), and the aligned joint-mode data are inverted () using, for example, AVA attributes.