Nuclear magnetic resonance methods for extracting information about a fluid in a rock

US6597171B2 · kind B2 · utility

Assignee

• SCHLUMBERGER TECHNOLOGY CORPORATION · US

Inventors

• Martin Hurlimann · Newton, US
• Olivier J. Terneaud · Saint-Avertin, FR
• Denise E. Freed · Newton, US
• Ulrich Scheven · Bethel, US
• Lalitha Venkataramanan · Lexington, US

Key dates

• Filing date: Jul 20, 2001
• Grant date: Jul 22, 2003
• Expiry date: Jul 20, 2021

Classification

• Technology area (CPC G): Physics
• CPC primary: G01V3/32
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Nuclear magnetic resonance methods for extracting information about a fluid in a rock are described. A system of nuclear spins in the fluid are prepared in a driven equilibrium, and a series of magnetic resonance signals generated from the fluid. The series of magnetic resonance signals is detected and analyzed to extract information about the fluid in the rock.