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. 15, 2013
Filed:
Jun. 26, 2008
John Richard Tulett, Yokohama, JP;
James Edward Martin, The Spinney Cottenham, GB;
Emmanuel Coste, Oslo, NO;
Colin Wilson, Kawasaki, JP;
John Richard Tulett, Yokohama, JP;
James Edward Martin, The Spinney Cottenham, GB;
Emmanuel Coste, Oslo, NO;
Colin Wilson, Kawasaki, JP;
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
Methods and apparatus for borehole seismic survey are disclosed comprising a first seismic source under water at a first location and a second seismic source at a second, deeper location. Seismic signals from the seismic sources are recorded with synchronized sensors located in a borehole and source signature data are obtained by combining the recorded seismic signals such that low and high frequency content of the combined source signature data is extended relative to the source signature of the first seismic source and the second seismic source.