Cornell University Borehole Observatory Wireline Sonic Logs
This data set includes wireline geophysical data from well Cornell ESH #1 (API 31109300030000), known as the Cornell University Borehole Observatory, or CUBO. It is a stratigraphic well drilled to characterize potential EGS resources. The Drilling commenced on June 21, 2022 and total depth of 9790 feet below KB was reached on August 13, 2022. The upper part if the well was drilled through 9400 feet of sedimentary rocks before penetrating into 390 feet of crystalline basement rock.
Sonic logs were collected from the 2nd intermediate section (4230.5-7822.5 feet) and the open hole section (7790.5-9757 feet). Sonic Logs included delta time of compressional waves and travel time of shear waves, accompanied by parameters needed to calibrate those data to the borehole and rock conditions and derivative mechanical and porosity products.
Data files include .pdf files for the logging runs as well as files containing the same data in .csv and .las formats. A "Readme.txt" file contains additional information about the included data and references for more in-depth descriptions.
Citation Formats
TY - DATA
AB - This data set includes wireline geophysical data from well Cornell ESH #1 (API 31109300030000), known as the Cornell University Borehole Observatory, or CUBO. It is a stratigraphic well drilled to characterize potential EGS resources. The Drilling commenced on June 21, 2022 and total depth of 9790 feet below KB was reached on August 13, 2022. The upper part if the well was drilled through 9400 feet of sedimentary rocks before penetrating into 390 feet of crystalline basement rock.
Sonic logs were collected from the 2nd intermediate section (4230.5-7822.5 feet) and the open hole section (7790.5-9757 feet). Sonic Logs included delta time of compressional waves and travel time of shear waves, accompanied by parameters needed to calibrate those data to the borehole and rock conditions and derivative mechanical and porosity products.
Data files include .pdf files for the logging runs as well as files containing the same data in .csv and .las formats. A "Readme.txt" file contains additional information about the included data and references for more in-depth descriptions.
AU - Tester, J.W.
A2 - Fulton, P.M.
A3 - Jordan, T.E.
A4 - Gustafson, J.O.
A5 - Erdinc, B.
DB - Geothermal Data Repository
DP - Open EI | National Laboratory of the Rockies
DO -
KW - geothermal
KW - energy
KW - Cornell University
KW - CUBO
KW - DDU
KW - deep direct use
KW - district heating
KW - deep well
KW - well data
KW - drilling
KW - ESH-1
KW - API 31109300030000
KW - raw data
KW - Appalachian Basin
LA - English
DA - 2026/07/21
PY - 2026
PB - Cornell University
T1 - Cornell University Borehole Observatory Wireline Sonic Logs
UR - https://gdr.openei.org/submissions/1853
ER -
Tester, J.W., et al. Cornell University Borehole Observatory Wireline Sonic Logs. Cornell University, 21 July, 2026, Geothermal Data Repository. https://gdr.openei.org/submissions/1853.
Tester, J., Fulton, P., Jordan, T., Gustafson, J., & Erdinc, B. (2026). Cornell University Borehole Observatory Wireline Sonic Logs. [Data set]. Geothermal Data Repository. Cornell University. https://gdr.openei.org/submissions/1853
Tester, J.W., P.M. Fulton, T.E. Jordan, J.O. Gustafson, and B. Erdinc. Cornell University Borehole Observatory Wireline Sonic Logs. Cornell University, July, 21, 2026. Distributed by Geothermal Data Repository. https://gdr.openei.org/submissions/1853
@misc{GDR_Dataset_1853,
title = {Cornell University Borehole Observatory Wireline Sonic Logs},
author = {Tester, J.W. and Fulton, P.M. and Jordan, T.E. and Gustafson, J.O. and Erdinc, B.},
abstractNote = {This data set includes wireline geophysical data from well Cornell ESH #1 (API 31109300030000), known as the Cornell University Borehole Observatory, or CUBO. It is a stratigraphic well drilled to characterize potential EGS resources. The Drilling commenced on June 21, 2022 and total depth of 9790 feet below KB was reached on August 13, 2022. The upper part if the well was drilled through 9400 feet of sedimentary rocks before penetrating into 390 feet of crystalline basement rock.
Sonic logs were collected from the 2nd intermediate section (4230.5-7822.5 feet) and the open hole section (7790.5-9757 feet). Sonic Logs included delta time of compressional waves and travel time of shear waves, accompanied by parameters needed to calibrate those data to the borehole and rock conditions and derivative mechanical and porosity products.
Data files include .pdf files for the logging runs as well as files containing the same data in .csv and .las formats. A "Readme.txt" file contains additional information about the included data and references for more in-depth descriptions.},
url = {https://gdr.openei.org/submissions/1853},
year = {2026},
howpublished = {Geothermal Data Repository, Cornell University, https://gdr.openei.org/submissions/1853},
note = {Accessed: 2026-11-05}
}
Details
Data from Jul 21, 2026
Last updated Jul 21, 2026
Submission in progress
Organization
Cornell University
Contact
Jefferson Tester
Authors
Keywords
geothermal, energy, Cornell University, CUBO, DDU, deep direct use, district heating, deep well, well data, drilling, ESH-1, API 31109300030000, raw data, Appalachian BasinDOE Project Details
Project Name Ground-Truthing: Exploratory Borehole Characterization and Modeling to Verify and Expand Techno-Economic Evaluation of Earth Source Heat at Cornell U
Project Lead Jeffrey Bowman
Project Number EE0009255
