Evaluation of the Gas Content in Archived Shale Samples: A Carbon Isotope Study

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F19%3A43916603" target="_blank" >RIV/62156489:43210/19:43916603 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14310/19:00113441 RIV/00025798:_____/19:00000301

Result on the web

<a href="https://doi.org/10.3390/geosciences9110481" target="_blank" >https://doi.org/10.3390/geosciences9110481</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/geosciences9110481" target="_blank" >10.3390/geosciences9110481</a>

Result language

angličtina

Original language name

Evaluation of the Gas Content in Archived Shale Samples: A Carbon Isotope Study

Original language description

We examined 14 archived samples of shale for the chemical and 13C isotopic composition of residual gases produced as part of rock-crushing operations at a hammer mill. Results were compared with data on maturity from Rock-Eval pyrolysis and vitrinite reflectance measurements. The samples originated from three different formations (Mikulov Marls, Ostrava Formation, and Liteň Formation) located in the Czech Republic. For comparison, we examined a gas-prone shale sample from the Polish Silurian. We used changes in the chemical and isotopic composition of released gases to evaluate the isotope fractionation during gas loss and retroactively calculated the initial content of gas in the shale samples. The gas content estimates (in L of gas per ton of rock) correspond with the maturity parameters of the shales. Calculated isotope fractionation for the gas release was MINUS SIGN 3%o for both methane and ethane. The archived samples primarily lost methane (up to 90%), with subsequent changes in the content of ethane and higher hydrocarbon levels.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

10505 - Geology

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Geosciences

ISSN

2076-3263

e-ISSN

—

Volume of the periodical

9

Issue of the periodical within the volume

11

Country of publishing house

CH - SWITZERLAND

Number of pages

13

Pages from-to

481

UT code for WoS article

000502289200027

EID of the result in the Scopus database

2-s2.0-85075218414