Invention Grant
- Patent Title: Methods of investigating formation samples using NMR data
-
Application No.: US14406503Application Date: 2013-05-24
-
Publication No.: US09939506B2Publication Date: 2018-04-10
- Inventor: Lalitha Venkataramanan , Fred K. Gruber , Tarek M. Habashy , Ridvan Akkurt , Badarinadh Vissapragada , Richard E. Lewis , Erik Rylander
- Applicant: Schlumberger Technology Corporation
- Applicant Address: US TX Sugar Land
- Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
- Current Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
- Current Assignee Address: US TX Sugar Land
- International Application: PCT/US2013/042621 WO 20130524
- International Announcement: WO2013/184404 WO 20131212
- Main IPC: G01R33/54
- IPC: G01R33/54 ; G01V3/14 ; G01V3/32 ; G01V3/38 ; G01N24/08 ; G01R33/44

Abstract:
A methods are provided for investigating a sample containing hydrocarbons by subjecting the sample to a nuclear magnetic resonance (NMR) sequence using NMR equipment, using the NMR equipment to detect signals from the sample in response to the NMR sequence, analyzing the signals to extract a distribution of relaxation times (or diffusions), and computing a value for a parameter of the sample as a function of at least one of the relaxation times (or diffusions), wherein the computing utilizes a correction factor that modifies the value for the parameter as a function of relaxation time for at least short relaxation times (or as a function of diffusion for at least large diffusion coefficients).
Public/Granted literature
- US20150177351A1 METHODS OF INVESTIGATING FORMATION SAMPLES USING NMR DATA Public/Granted day:2015-06-25
Information query