Method of suppressing vibration seismic signal correlation noise
CA 1281121 C · Owner: Atlantic Richfield Company · Inventors: Martinez, David R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
METHOD OF SUPPRESSING VIBRATION SEISMIC SIGNAL CORRELATION NOISE;, ABSTRACT, A method of seismic prospecting in which there is employed conventional upsweep and downsweep and opposed polarity of signals that are being sent into the earth as seismic signals and in which there is introduced a taper at the common frequency at the common time on the respective upsweep and downsweep signals to reduce the most significant part of the correlation noise, yet provide the advantages of each of the methods of using opposite phase polarity to, cancel and using opposite upsweep and downsweep to achieve reduction in the noise experienced, as well as the reduction of the most significant part of the …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted March 5, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 5, 2008.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.