WesternGeco Patent applications |

Patent application number | Title | Published |

20110128817 | GEOPHYSICAL SIGNAL PROCESSING - A method of processing geophysical signals obtained by monitoring the response of the earth to an source using a plurality of receivers is described including the evaluation of sums or integrals of functions of weighted signal values over a one or multidimensional domain such that the domain is split into a plurality of simplices and the signal values are interpolated across the simplices using a non-linear approximation of the function, the approximation including signals and gradients of the signals, and the evaluated sums or integrals are used to obtain a representation of characteristics of the earth. | 06-02-2011 |

20100199772 | SEISMIC VIBRATORY ACQUISITION METHOD AND APPARATUS - A method and related apparatus are described for generating acoustic signals for use in a vibratory seismic survey, including at least two different sweep signals for the control of at least two different types of vibrators; and matching the phases of the different sweep signals at a transition frequency from one sweep signal to another. | 08-12-2010 |