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Processing of a large offshore 3DVSP DAS survey in a producing well

DAS fiber deployed on several wells’ completion strings offshore recorded a 3DVSP survey with ongoing production, but with significant noise encountered. A novel, two-step approach on one well addressed fiber directivity response on recorded data to recover relative amplitudes. The final 3D VSP image showed improved spatial resolution over target intervals. ....

Salt Lake City , United States , United Kingdom , Roberto Casta , Shujaat Ali , Emmanuel Spadavecchia , Francesco Miranda , National Polytechnic Institute , Quaide Azam University , Schlumberger Innovation Center , International Meeting , Technology Conference , Offshore Technology Conference , Leading Edge , Annual International Meeting , Expanded Abstracts , Digital Signal Processing , Telecommunication Engineering , Schlumberger North America Land , Digital Transformation ,