March 2, 2015

GEOS4 staff presents research on unconventionals

Nicolaj Mahlstedt and Brian Horsfield will be presenting latest research results at the upcoming AAPG Annual Convention and Exhibition in Denver, USA, and the 27th International Meeting on Organic Geochemistry (IMOG) conference in Prague. 

AAPG 2015: "Impact of fluid retention on bulk petroleum properties in shale" addresses the problem of accurate predictions of GOR and petroleum properties within unconventional resource plays. New insights into the evolution of petroleum properties are presented, relating structures within kerogen to retained and expelled fluid chemistries as a function of maturity. FT-ICR-MS and Pyrolysis-GC data on source rocks and related oils documented chemical differences which are manifested in the sorptive properties of fluids and need to be taken into account in formulating production strategies.

IMOG 2015: "The Role of Live Carbon for Sorption and Retention" relates to the difficulty of quantifying the gas stored in shale-gas reservoirs in “free” and “sorbed” states, which is critical for the assessment of Gas-In-Place (GIP) and the design of effective production strategies. The major outcome of our study on an extensive sample set consisting of mainly marine Type II source rocks of Paleozoic to Mesozoic age is that gas retention behavior seems to be closely linked to kerogen structure, besides maturity. The findings are illustrated using a backcloth of unconventional shale settings from Europe and North America.

"Impact of fluid retention on bulk petroleum properties in shale" is co-authored by Nicolaj Mahlstedt, Brian Horsfield, Stefanie Pötz and Heinz Wilkes. Link to AAPG ACE 2015 website here.

"The Role of Live Carbon for Sorption and Retention" is co-authored by Nicolaj Mahlstedt and Brian Horsfield. Link to IMOG 2015 website here