US 12,123,304 B2
Systems and methods for monitoring gas storage in underground reservoirs
Albert Ballard Andrews, Wilton, CT (US); Andrew J. Speck, Milton, MA (US); Ridvan Akkurt, Denver, CO (US); Oliver C. Mullins, Houston, TX (US); and Shawn David Taylor, Reading, MA (US)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Appl. No. 18/559,190
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
PCT Filed May 6, 2022, PCT No. PCT/US2022/028064
§ 371(c)(1), (2) Date Nov. 6, 2023,
PCT Pub. No. WO2022/236048, PCT Pub. Date Nov. 10, 2022.
Claims priority of provisional application 63/201,666, filed on May 7, 2021.
Prior Publication US 2024/0240558 A1, Jul. 18, 2024
Int. Cl. G01J 3/44 (2006.01); E21B 47/113 (2012.01); E21B 49/08 (2006.01); G01N 21/65 (2006.01); G01N 33/28 (2006.01); B65G 5/00 (2006.01)
CPC E21B 49/0875 (2020.05) [E21B 47/114 (2020.05); G01N 21/65 (2013.01); G01N 33/2835 (2013.01); B65G 5/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A data processing system, comprising:
one or more processors configured to execute instructions stored on one or more memory media, wherein the instructions, when executed by the one or more processors, cause the data processing system to monitor storage of gas in a well by:
(a) estimating initial mole fractions of one or more components of the gas being stored in the well based on one or more tool parameters of a logging tool disposed within a wellbore of the well in a zone of a subterranean formation;
(b) calculating component densities of the one or more components of the gas based at least in part on the initial mole fractions of the one or more components of the gas;
(c) predicting an optical response and pressure using the one or more tool parameters of the logging tool and the component densities of the one or more components of the gas; and
(d) comparing the predicted optical response and pressure to an optical response and pressure measured by an optical module of the logging tool to determine whether the estimated initial mole fractions and the calculated component densities of the one or more components of the gas are representative of actual mole fractions and component densities of the one or more components of the gas.