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:
Mar. 25, 2014
Filed:
Oct. 26, 2010
Junichi Sugiura, Houston, TX (US);
Jun Zhang, Houston, TX (US);
Zhipeng Liu, Houston, TX (US);
Paul Boonen, Katy, TX (US);
Junichi Sugiura, Houston, TX (US);
Jun Zhang, Houston, TX (US);
Zhipeng Liu, Houston, TX (US);
Paul Boonen, Katy, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A method for removing cyclic noise from a borehole image includes transforming the image into the frequency domain using a two-dimensional (2-D) transform (e.g., using a discrete cosine transform). The cyclic noise components (peaks) are removed from the transformed image which is then inverse transformed back into the spatial domain using an inverse 2-D transform to obtain a corrected image. An automated method enables the cyclic peaks to be identified and removed from the borehole image via downhole processing.