US 11,988,620 B2
Method to determine an uncorrupted nuclear magnetic resonance response from a sample
Jin-Hong Chen, Katy, TX (US); Stacey M. Althaus, Houston, TX (US); Mohammed Boudjatit, El Kennar (DZ); and Gary Eppler, Baytown, TX (US)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by ARAMCO SERVICES COMPANY, Houston, TX (US)
Filed on Jul. 21, 2022, as Appl. No. 17/814,170.
Prior Publication US 2024/0027378 A1, Jan. 25, 2024
Int. Cl. G01N 24/08 (2006.01); E21B 44/00 (2006.01); E21B 47/06 (2012.01); E21B 49/02 (2006.01); G01N 15/08 (2006.01); G01N 33/24 (2006.01); G01V 20/00 (2024.01); E21B 7/04 (2006.01)
CPC G01N 24/081 (2013.01) [E21B 44/00 (2013.01); E21B 47/06 (2013.01); E21B 49/02 (2013.01); G01N 15/082 (2013.01); G01N 33/24 (2013.01); G01V 20/00 (2024.01); E21B 7/04 (2013.01); E21B 2200/20 (2020.05)] 18 Claims
OG exemplary drawing
 
1. A method for determining an uncorrupted nuclear magnetic resonance (NMR) response from a sample at a predetermined measurement pressure, comprising:
obtaining the sample;
obtaining a filler fluid, wherein the filler fluid has a negligible NMR response;
determining a volume of filler fluid based on a dimension of the sample and an interior volume of a pressure cell;
introducing the volume of filler fluid into the pressure cell, wherein the volume of filler fluid is at a first temperature;
changing the temperature of the volume of filler fluid to a second temperature;
inserting the sample into the volume of filler fluid within the pressure cell, displacing an upper surface of filler fluid to a predetermined level within the interior volume of the pressure cell, wherein the predetermined level is located above a top NMR coil surface and below a top surface of the sample;
establishing the predetermined measurement pressure within the pressure cell; and
determining the uncorrupted NMR response from the sample at the predetermined measurement pressure.