mobileMenu


Geochemical Data for the Olla and Nebo-Hemphill Oil Fields, Louisiana

Dataset title Geochemical Data for the Olla and Nebo-Hemphill Oil Fields, Louisiana
Dataset creators Rebecca L Tyne, University of Oxford
Peter H Barry, University of Oxford, Woods Hole Oceanographic Institution
Michael Lawson, ExxonMobil Upstream Business Development, Aker BP
Hao Xie, California Institute of Technology
Darren J Hillegonds, University of Oxford
John M Eiler, California Institute of Technology
Chris J Ballentine, University of Oxford
Dataset theme Geoscientific Information
Dataset abstract

Formation water geochemistry and gas geochemistry from 6 wells in the Olla Oil Field and 7 wells in the Nebo-Hemphill Oil Field Louisiana (Longitude range: -92.2297 to -92.1487, Latitude range: 31.83128 to 31.56586.), sampled in 2015. Formation water geochemistry for cation and anions and in mmol/l and ppm, these were measured at an internal ExxonMobil facility. Casing gases were used to make the remaining measurements. Stable noble gas isotopes (He, Ne, Ar, Kr, Xe) were measured at the University of Oxford Noble Lab for ratios and abundances (in cm3(STP)/cm3). Stable C isotopes of CO2 and CH4 and C2, C3 and C4 alkanes in ‰ VDPB as well as their mol% of the casing gas were measured by Isotech Inc.. Methane clumped isotopes are given as Δ12CH2D2 and Δ13CH3D and were measured at the California Institute of Technology. Where no data is present, no measurements were taken for that well. N.D. refers to not detectable.

Dataset content dates 03/03/2015 - 31/01/2020
Dataset spatial coverage Olla and Nebo-Hemphill Oil fields, La Salle Parish Louisiana.
Longitude range: -92.2297 to -92.1487
Latitude range: 31.83128 to 31.56586
Dataset supply format cvs file
Dataset language English-United Kingdom
Dataset discovery metadata record Discovery Link to the dataset's BGS Discovery Metadata record
Dataset publisher NERC EDS National Geoscience Data Centre
Dataset publication date 11th August 2021
Dataset digital object identifier(DOI) 10.5285/a4070f5d-2064-4caf-a82c-79a786d6af9e
Dataset citation text Tyne, R.L., Barry, P.H., Lawson, M., Xie, H., Hillegonds, D.J., Eiler, J.M., Ballentine, C.J. (2021). Geochemical Data for the Olla and Nebo-Hemphill Oil Fields, Louisiana. NERC EDS National Geoscience Data Centre. (Dataset). https://doi.org/10.5285/a4070f5d-2064-4caf-a82c-79a786d6af9e
Constraints and terms of use This data set is available under Open Government Licence, subject to the following acknowledgement accompanying any reproduced materials: "Contains data supplied by permission of the Natural Environment Research Council [YEAR]".
Access the dataset https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item167342