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:
Apr. 30, 2002
Filed:
Apr. 05, 2000
Zhiyi Zhang, Houston, TX (US);
Alberto G. Mezzatesta, Houston, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
A Neural Net (NN) is trained, validated and used for borehole correction of resistivity logging data. In the training stage, the entire range of possibilities of earth models relevant to borehole compensation is sampled and a suite of tool responses is generated, with and without the borehole and the NN is trained to produce the corresponding borehole-free response. In the validation stage, the input to the NN comprises tool responses that were not used in the training of the NN and validation is based upon comparing the output of the NN to the corresponding borehole-free response. If the agreement is not good, then the NN is retrained with a different sampling of the earth model. The validated NN is then used to correct the borehole measurements. The borehole corrected measurements may be inverted using an additional neural net designed for the purpose.