Schlumberger Technology Corporation

Services Petroliers Schlumberger

Shawn David Taylor

Oliver Clinton Mullins

Ravinath Kausik Kadayam Viswanathan

Andrew Speck

Albert Ballard Andrews

Ridvan Akkurt

Shin Utsuzawa

Paul Ryan Craddock

Kamilla Fellah

MaryEllen Loan

Methods and systems are provided that combine NMR and IR spectroscopy measurements on a rock sample to determine data representing at least one property of the rock sample. In one embodiment, cuttings can be split into first and second lots. Results of an NMR measurement performed on the first lot of cuttings without cleaning can be analyzed to determine pore volume of the cuttings. Results of an IR spectroscopy measurement performed on the second lot of cuttings after solvent cleaning can be analyzed to determine matrix density of the cuttings. Porosity can be determined from the pore volume and matrix density of the cuttings. In another embodiment, combined NMR and IR spectroscopy measurements can be performed on an unprepared rock sample (without solvent cleaning) to characterize properties of kerogen in the rock sample and porosity. In another aspect, a method is provided that employs multi-nucleic NMR measurements to determine porosity.

Methods and systems for characterizing properties of reservoir rock

Systems and methods presented herein are configured to monitor gas storage in a well and, more specifically, to invert optical measurements to predict the fractional molar composition of an unknown composition of a gas mixture comprised of hydrogen, carbon dioxide, other gases, or combinations thereof, in any underground reservoir or salt dome where hydrogen, carbon dioxide, and/or the other gases are stored or exist.

Systems and methods for monitoring gas storage in underground reservoirs

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Reading, MA, United States of America

Shawn David Taylor