The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 05, 2010
Filed:
Oct. 25, 2007
James J. Carazzone, Houston, TX (US);
James J. Carazzone, Houston, TX (US);
ExxonMobil Upstream Research Co., Houston, TX (US);
Abstract
Method for organizing computer operations on a system of parallel processors to invert electromagnetic field data () from a controlled-source electromagnetic survey of a subsurface region to estimate resistivity structure () within the subsurface region. Each data processor in a bank of processors simultaneously solves Maxwell's equations () for its assigned geometrical subset of the data volume (). Other computer banks are simultaneously doing the same thing for data associated with a different source frequency, position or orientation, providing a 'fourth dimension' parallelism, where the fourth dimension requires minimal data passing (). In preferred embodiments, a time limit is set after which all processor calculations are terminated, whether or not convergence has been reached.