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:
Jan. 19, 2016
Filed:
Dec. 19, 2011
Alexis S. Husser, Richmond, TX (US);
Colin Michael Sayers, Katy, TX (US);
Aron Kramer, Katy, TX (US);
John P. Horkowitz, Sugar Land, TX (US);
Geoff Weller, Berowra Heights, AU;
Alexis S. Husser, Richmond, TX (US);
Colin Michael Sayers, Katy, TX (US);
Aron Kramer, Katy, TX (US);
John P. Horkowitz, Sugar Land, TX (US);
Geoff Weller, Berowra Heights, AU;
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A logging tool capable of making different types of measurements is provided, and a plurality of measurements on a formation are obtained. Certain mineral properties of the formation are assumed and a mixed properties theorem for the formation is invoked. Upper and lower velocity limits for sonic waves traveling through the formation are determined using the above information. Biot's constant is also computed using the above information. LWD data on the formation is obtained and an effective stress is determined. A total stress is determined and, from that and the other information, a pore pressure is determined.