Jochem Kueck, Ronald Conze, Kurt Bram, Hans Draxler, Gustav Zoth, Winfried Kessels, Ralph Hänel, Florian Ott, Kirsten Elger KTB Borehole Logging Data Scientific Technical Report STR21/03 - Data ISSN 2190-7110 www.gfz-potsdam.de Recommended citation Kueck, J.; Conze, R.; Bram, K.; Draxler, H.; Zoth, G.; Kessels, W.; Hänel, R., Ott, F.; Elger, K. (2021): KTB Borehole Logging Data (Scientific Technical Report STR - Data; 21/03), Potsdam: GFZ German Research Centre for Geosciences. https://doi.org/ 10.48440/gfz.b103-21036 The data described in this report are published as Kueck, J.; Conze, R.; Bram, K.; Draxler, H.; Zoth, G.; Kessels, W.; Hänel, R. (2021): KTB Borehole Measurements of the German Continental Deep Drilling Program. GFZ Data Services. https://doi.org/10.5880/GFZ.KTB.BM.ALL Imprint Telegrafenberg D-14473 Potsdam Published in Potsdam, Germany April 2021 DOI: https://doi.org/10.48440/GFZ.b103-21036 URN: urn:nbn:de:kobv:b103-21036 This work is published in the GFZ series Scientific Technical Report (STR) and electronically available at GFZ website www.gfz-potsdam.de This work is licensed under a Creative Commons Attribution 4.0 International License. (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/ KTB Borehole Logging Data Jochem Kueck1*, Ronald Conze1, Kurt Bram2, Hans Draxler2, Gustav Zoth2, Winfried Kessels2, Ralph Hänel2, Florian Ott1, Kirsten Elger1 1 GFZ German Research Centre for Geosciences, Potsdam, Germany 2 NLfB Niedersächsisches Landesamt für Bodenforschung, Hannover, Germany *corresponding author: Jochem Kück ([email protected]) Citation of the Report: Kueck, J.; Conze, R.; Bram, K.; Draxler, H.; Zoth, G.; Kessels, W.; Hänel, R.; Ott, F.; Elger, K. (2021): KTB Borehole Logging Data (Scientific Technical Report STR - Data ; 21/03), Potsdam : GFZ German Research Centre for Geosciences, 32 p. https://doi.org/10.48440/gfz.b103-21036 Licence: Creative Commons Attribution 4.0 International License (CC BY 4.0) STR 21/03 - Data. GFZ German Research Centre for Geosciences. DOI: 10.48440/gfz.b103-21036 1 Table of Contents 1. Abstract .............................................................................................................................................. 4 2. Introduction ........................................................................................................................................ 5 2.1. The KTB Program .......................................................................................................................... 5 2.2. KTB - a view into the interior zones of a mountain chain ............................................................... 5 2.3. KTB - an investigation into the future of our planet ...................................................................... 5 2.4. Key results .................................................................................................................................... 6 3. KTB Data and publications ................................................................................................................... 6 3.1. Internal KTB working groups: ........................................................................................................ 6 3.2. KTB final experiments 1994 .......................................................................................................... 6 3.3. External KTB working groups ........................................................................................................ 7 3.4. Measurements in KTB surrounding area ....................................................................................... 7 4. General Remarks on KTB Borehole Measurements Data ...................................................................... 7 4.1. Contents ....................................................................................................................................... 7 4.2. Data Format ................................................................................................................................. 8 4.3. Corrections applied to the logging data ........................................................................................ 8 4.4. Depth partitioning of the data files ............................................................................................... 9 4.5. Overview of the available KTB logging data files ........................................................................... 9 4.6. Measurements Names.................................................................................................................10 5. Description of Measurements and Sondes ..........................................................................................11 5.1. Composite Logs ...........................................................................................................................11 5.1.1. Composite Logs KTB-VB .......................................................................................................11 5.1.2. Composite Logs KTB-HB .......................................................................................................11 5.1.3. Reference Gamma Ray KTB-HB ............................................................................................12 5.1.4. Reference Gamma Ray KTB-HB ............................................................................................12 5.2. Borehole Geometry and Orientation Data ...................................................................................12 5.2.1. BGL – Borehole Geometry Logs from Logging Series.............................................................12 5.2.2. Borehole Trajectory – horizontal projection of the borehole pathway from orientation data 13 5.2.3. TVD – true vertical depth from orientation data...................................................................13 5.2.4. BGL Logs, Trajectory and TVD representative for the major logging series............................14 5.2.5. BGL single measurements of KTB-VB ....................................................................................15 5.2.6. BGL single measurements of KTB-HB ...................................................................................17 5.3. Temperature Logs .......................................................................................................................20 5.3.1. TEMP single measurements of KTB-VB .................................................................................21 5.3.2. TEMP single measurements of KTB-HB .................................................................................22 5.4. Electrical Logs ..............................................................................................................................24 5.4.1. ARI (also called ALAT) – Array Resistivity Imager (Azimuthal LateroLog) ...............................24 5.4.2. DIL – Dual Induction Log ......................................................................................................25 STR 21/03 - Data. GFZ German Research Centre for Geosciences. DOI: 10.48440/gfz.b103-21036 2 5.4.3. DLL – Dual Laterolog ............................................................................................................25 5.4.4. IPL – Induced Polarization Log ..............................................................................................25 5.4.5. MSFL – Micro-Spherically Focused Log .................................................................................26 5.4.6. SP – Spontaneous Potential, steel electrode, together with BGL SP-Redox – Redox potential, absolute measuring SP sonde .............................................................................................................26 5.5. Sonic Logs ....................................................................................................................................27 5.5.1. HSLT - Hostile Sonic Logging Tool; DSI - Dipole Shear Sonic Imager SDT -Sonic Digital Tool ..27 5.6. Nuclear Logs ................................................................................................................................28 5.6.1. CNL – Compensated Neutron Log.........................................................................................28 5.6.2. GLT – Geochemical Logging Tool ..........................................................................................28 5.6.3. LDL – Litho-Density-Log (Gamma-Gamma Log) HFDC – High temperature Formation Density Compensated .....................................................................................................................................29 5.6.4. NGS – Natural Gamma Spectrometer ...................................................................................30 5.6.5. Reference GR (RGR) .............................................................................................................30 5.7. Gravimetry ..................................................................................................................................30 5.7.1. BHGM – Borehole Gravity Meter .........................................................................................30 5.8. Borehole Magnetics.....................................................................................................................31 5.8.1. Magnetic Susceptibility ........................................................................................................31 5.8.2. Borehole Magnetometer .....................................................................................................31