Site C0011 LWD resistivity-derived porosity

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doi: 10.2204/iodp.proc.322.201.2013
Author(s): Tudge, Joanne; Lovell, Mike; Davis, Sarah
Integrated Ocean Drilling Program, Expedition 322 Scientists, College Station, TX
Author Affiliation(s): Primary:
University of Wisconsin-Madison, Department of Geosciences, Madison, WI, United States
Other:
Japan Agency for Marine-Earth Science and Technology, Japan
Tohoku University, Japan
Université de Toulouse, France
Rice University, United States
National Centre for Antarctic and Ocean Research, India
Osaka University, Japan
University of Bremen, Germany
Pennsylvania State University, United States
University of Kiel, Germany
Joseph Fourier University, France
University of Melbourne, Australia
Chiba University, Japan
Geological Survey of Japan, Japan
University of Tokyo, Japan
University College London, United Kingdom
Boston University, United States
Lamont-Doherty Earth Observatory, United States
New Mexico Institute of Mining and Technology, United States
Oregon State University, United States
University of Leicester, United Kingdom
China University of Geosciences, China
Doshisha University, Japan
University of California-Santa Cruz, United States
Volume Title: Proceedings of the Integrated Ocean Drilling Program; NanTroSEIZE Stage 2; subduction inputs; Expedition 322 of the riser drilling platform, Yokkaichi, Japan, to Shingu, Japan, Sites C0011 and C0012, 1 September-10 October 2009
Volume Author(s): Underwood, Michael B.; Saito, Saneatsu; Kubo, Yu'suke; Sanada, Yoshinori; Chiyonobu, Shun; Destrigneville, Christine; Dugan, Brandon; Govil, Pawan; Hamada, Yohei; Heuer, Verena; Hüpers, Andre; Ikari, Matt; Kitamura, Yujin; Kutterolf, Steffen; Labanieh, Shasa; Moreau, John; Naruse, Hajime; Oda, Hirokuni; Park, Jin-Oh; Pickering, Kevin T.; Scudder, Rachel; Slagle, Angela; Spinelli, Glenn; Torres, Marta E.; Tudge, Joanne; Wu Huaichun; Yamamoto, Tomohiro; Yamamoto, Yuzuru; Zhao, Xixi
Source: Proceedings of the Integrated Ocean Drilling Program; NanTroSEIZE Stage 2; subduction inputs; Expedition 322 of the riser drilling platform, Yokkaichi, Japan, to Shingu, Japan, Sites C0011 and C0012, 1 September-10 October 2009, Michael B. Underwood, Saneatsu Saito, Yu'suke Kubo, Yoshinori Sanada, Shun Chiyonobu, Christine Destrigneville, Brandon Dugan, Pawan Govil, Yohei Hamada, Verena Heuer, Andre Hüpers, Matt Ikari, Yujin Kitamura, Steffen Kutterolf, Shasa Labanieh, John Moreau, Hajime Naruse, Hirokuni Oda, Jin-Oh Park, Kevin T. Pickering, Rachel Scudder, Angela Slagle, Glenn Spinelli, Marta E. Torres, Joanne Tudge, Wu Huaichun, Tomohiro Yamamoto, Yuzuru Yamamoto and Xixi Zhao; Integrated Ocean Drilling Program, Expedition 322 Scientists, College Station, TX. Proceedings of the Integrated Ocean Drilling Program (Online), Vol.322, 6p. Publisher: IODP Management International, Washington, DC, United States. ISSN: 1930-1014
Note: In English. 8 refs.; illus., incl. 2 tables
Summary: During Integrated Ocean Drilling Program (IODP) Expedition 322 for the Nankai Trough Seismogenic Zone Experiment project, no logging-while-drilling (LWD)-based porosity measurements were acquired at Site C0011. Here we calculate porosity from both the ring and bit resistivity measurements. Core-derived thermal conductivity coefficients are used to estimate constant thermal gradients and variable thermal gradients for the different lithologies encountered. Temperature profiles are then generated based on the calculated thermal gradients to estimate water resistivity. Using the temperature-corrected water resistivity in Archie's equation, porosity is calculated from the two LWD resistivity measurements. When compared to core-based porosity measurements, the ring resistivity-derived porosity, with a constant thermal gradient of 91.3°C/km, provides the more accurate estimate of porosity.
Year of Publication: 2013
Research Program: IODP Integrated Ocean Drilling Program
Key Words: 07 Marine Geology and Oceanography; 20 Geophysics, Applied; Archie's law; Boreholes; Cores; Electrical methods; Geophysical methods; Heat flow; IODP Site C0011; Integrated Ocean Drilling Program; Marine sediments; NanTroSEIZE; North Pacific; Northwest Pacific; Pacific Ocean; Porosity; Resistivity; Sedimentary rocks; Sediments; Shikoku Basin; Temperature; Thermal conductivity; Well logs; West Pacific
Coordinates: N324944 N324945 E1365256 E1365254
Record ID: 2013047936
Copyright Information: GeoRef, Copyright 2017 American Geosciences Institute.