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Title: Computed Tomography Scanning and Geophysical Measurements of Core from the Coldstream 1MH Well

Abstract

The computed tomography (CT) facilities and the Multi-Sensor Core Logger (MSCL) at the National Energy Technology Laboratory (NETL) Morgantown, West Virginia site were used to characterize core of the Marcellus Shale from a vertical well, the Coldstream 1MH Well in Clearfield County, PA. The core is comprised primarily of the Marcellus Shale from a depth of 7,002 to 7,176 ft. The primary impetus of this work is a collaboration between West Virginia University (WVU) and NETL to characterize core from multiple wells to better understand the structure and variation of the Marcellus and Utica shale formations. As part of this effort, bulk scans of core were obtained from the Coldstream 1MH well, provided by the Energy Corporation of America (now Greylock Energy). This report, and the associated scans, provide detailed datasets not typically available from unconventional shales for analysis. The resultant datasets are presented in this report, and can be accessed from NETL's Energy Data eXchange (EDX) online system using the following link: https://edx.netl.doe.gov/dataset/coldstream-1mh-well. All equipment and techniques used were non-destructive, enabling future examinations to be performed on these cores. None of the equipment used was suitable for direct visualization of the shale pore space, although fractures and discontinuities weremore » detectable with the methods tested. Low resolution CT imagery with the NETL medical CT scanner was performed on the entire core. Qualitative analysis of the medical CT images, coupled with x-ray fluorescence (XRF), P-wave, and magnetic susceptibility measurements from the MSCL were useful in identifying zones of interest for more detailed analysis as well as fractured zones. En echelon fractures were observed at 7,100 ft and were CT scanned using NETL’s industrial CT scanner at higher resolution. The ability to quickly identify key areas for more detailed study with higher resolution will save time and resources in future studies. The combination of methods used provided a multi-scale analysis of this core and provides both a macro and micro description of the core that is relevant for many subsurface energy-related examinations that have traditionally been performed at NETL.« less

Authors:
 [1];  [1];  [1];  [2];  [2];  [2];  [3];  [4]
  1. National Energy Technology Lab. (NETL), Morgantown, WV (United States)
  2. National Energy Technology Lab. (NETL), Morgantown, WV (United States); Oak Ridge Inst. for Science and Education (ORISE), Oak Ridge, TN (United States); West Virginia Univ., Morgantown, WV (United States)
  3. West Virginia Univ., Morgantown, WV (United States)
  4. Greylock Energy, Charleston WV (United States)
Publication Date:
Research Org.:
National Energy Technology Lab. (NETL), Pittsburgh, PA, and Morgantown, WV (United States)
Sponsoring Org.:
USDOE Office of Fossil Energy (FE)
OSTI Identifier:
1433839
Report Number(s):
NETL-PUB-21728
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
03 NATURAL GAS; CT Scanning; core logging; Marcellus shale

Citation Formats

Crandall, Dustin M., Brown, Sarah, Moore, Johnathan E., Martin, Keithan, Mackey, Paige E., Paronish, Thomas J., Carr, Tim, and Bowers, Cole. Computed Tomography Scanning and Geophysical Measurements of Core from the Coldstream 1MH Well. United States: N. p., 2018. Web. doi:10.18141/1432201.
Crandall, Dustin M., Brown, Sarah, Moore, Johnathan E., Martin, Keithan, Mackey, Paige E., Paronish, Thomas J., Carr, Tim, & Bowers, Cole. Computed Tomography Scanning and Geophysical Measurements of Core from the Coldstream 1MH Well. United States. doi:10.18141/1432201.
Crandall, Dustin M., Brown, Sarah, Moore, Johnathan E., Martin, Keithan, Mackey, Paige E., Paronish, Thomas J., Carr, Tim, and Bowers, Cole. Mon . "Computed Tomography Scanning and Geophysical Measurements of Core from the Coldstream 1MH Well". United States. doi:10.18141/1432201. https://www.osti.gov/servlets/purl/1433839.
@article{osti_1433839,
title = {Computed Tomography Scanning and Geophysical Measurements of Core from the Coldstream 1MH Well},
author = {Crandall, Dustin M. and Brown, Sarah and Moore, Johnathan E. and Martin, Keithan and Mackey, Paige E. and Paronish, Thomas J. and Carr, Tim and Bowers, Cole},
abstractNote = {The computed tomography (CT) facilities and the Multi-Sensor Core Logger (MSCL) at the National Energy Technology Laboratory (NETL) Morgantown, West Virginia site were used to characterize core of the Marcellus Shale from a vertical well, the Coldstream 1MH Well in Clearfield County, PA. The core is comprised primarily of the Marcellus Shale from a depth of 7,002 to 7,176 ft. The primary impetus of this work is a collaboration between West Virginia University (WVU) and NETL to characterize core from multiple wells to better understand the structure and variation of the Marcellus and Utica shale formations. As part of this effort, bulk scans of core were obtained from the Coldstream 1MH well, provided by the Energy Corporation of America (now Greylock Energy). This report, and the associated scans, provide detailed datasets not typically available from unconventional shales for analysis. The resultant datasets are presented in this report, and can be accessed from NETL's Energy Data eXchange (EDX) online system using the following link: https://edx.netl.doe.gov/dataset/coldstream-1mh-well. All equipment and techniques used were non-destructive, enabling future examinations to be performed on these cores. None of the equipment used was suitable for direct visualization of the shale pore space, although fractures and discontinuities were detectable with the methods tested. Low resolution CT imagery with the NETL medical CT scanner was performed on the entire core. Qualitative analysis of the medical CT images, coupled with x-ray fluorescence (XRF), P-wave, and magnetic susceptibility measurements from the MSCL were useful in identifying zones of interest for more detailed analysis as well as fractured zones. En echelon fractures were observed at 7,100 ft and were CT scanned using NETL’s industrial CT scanner at higher resolution. The ability to quickly identify key areas for more detailed study with higher resolution will save time and resources in future studies. The combination of methods used provided a multi-scale analysis of this core and provides both a macro and micro description of the core that is relevant for many subsurface energy-related examinations that have traditionally been performed at NETL.},
doi = {10.18141/1432201},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Mar 05 00:00:00 EST 2018},
month = {Mon Mar 05 00:00:00 EST 2018}
}

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