Physical rock properties in and around a conduit zone by well-logging in the Unzen Scientific Drilling Project, Japan

Journal of Volcanology and Geothermal Research

Volumn 175, Issue 1-2, 2008, Pages 13-19

  Ikeda, Ryuji ^a   Kajiwara, Tatsuya ^b   Omura, Kentaro ^c   Hickman, Stephen ^d  

^a HOKKAIDO UNIVERSITY   (Japan)

^b Japan Metals & Chemicals Co Ltd   (Japan)

^c NATIONAL RESEARCH INSTITUTE FOR EARTH SCIENCE AND DISASTER PREVENTION   (Japan)

^d U S GEOLOGICAL SURVEY   (United States)

Author keywords

Conduit structure; Rock properties; Scientific drilling; Unzen volcano; Well logging

Indexed keywords

ACOUSTIC LOGGING; ACOUSTIC WAVE VELOCITY; DEGASSING; DRILLING; FORESTRY; GAMMA RAYS; HARVESTING; HUMAN COMPUTER INTERACTION; HYDRAULIC STRUCTURES; LEVEES; LITHOLOGY; LOGGING (FORESTRY); NEUTRON LOGGING; OIL WELL LOGGING; POROSITY; ROCK DRILLING; ROCKS; SCALE (DEPOSITS); SPONTANEOUS POTENTIAL LOGGING; STRUCTURAL GEOLOGY;

ALTERNATING LAYERS; CONDUIT STRUCTURE; DATA SUPPORT; HIGH POROSITY; LOG DATA; LOW RESISTIVITY; MAGMA ASCENT; NEUTRON POROSITY; P-WAVE VELOCITIES; PHYSICAL PROPERTIES; PYROCLASTIC ROCKS; ROCK PROPERTIES; SCALE FORMATION; SCIENTIFIC DRILLING; SPONTANEOUS POTENTIAL; UNZEN VOLCANO; WAVE VELOCITIES; WELL LOGGING;

WELL DRILLING;

DEGASSING; DRILLING; LAVA; LITHOLOGY; MAGMA; PERMEABILITY; ROCK PROPERTY; VOLCANIC ERUPTION; WAVE VELOCITY; WELL LOGGING;

CORROSION; DEGASSING; DEPOSITS; DRILLING; HYDRAULIC STRUCTURES; LOGGING; POROSITY; VELOCITY;

ASIA; EURASIA; FAR EAST; JAPAN; KYUSHU; NAGASAKI [KYUSHU]; UNZEN VOLCANO;

EID: 50049126633     PISSN: 03770273     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.jvolgeores.2008.03.036     Document Type: Article

References (14)

1. Buysch A., Pechnig R., and Harms U. Geophysical downhole measurements in the scientific drillhole HSDP Hilo/Hawaii: Core-log integration to characterize effects of alteration and structures. Eos, Transactions, AGU 2000 Fall Meeting vol. 81 (2000) F1349
2. Eichelberger J.C., Vogelm T., Younker L., Miller D., Heiken G., and Wohletz K. Structure and stratigraphy beneath a young phreatic vent: South Inyo Crater, Long Valley Caldera, California. J. Geophys. Res. 93 (1988) 13208-13220
3. Hoshizumi H., Uto K., and Watanabe K. Geology and eruptive history of Unzen volcano, Shimabara Peninsula, Kyushu, SW Japan. J. Volcanol. Geotherm. Res. 89 (1999) 81-94
4. Hoshizumi H., Uto K., Matsumoto A., Xu S., and Oguri K. Geology of Unzen volcano and core stratigraphy of the flank drillings. Extended abstract of International Unzen Workshop (2002) 4-7 2002
5. Ikeda R., Omura K., Hickman, Kueck J., de Wall H., and Matsuda T. Unzen Scientific Drilling Project, Japan: studies of stress, fractures and properties in flank wells. Abstracts of AGU 2003 Fall Meeting, V52B-0434 (2003)
6. Ikeda R., Omura K., Hickman S., and Matsuda T. Unzen Volcano Scientific Drilling: structure and stress state inferred from downhole measurements in the flank drilling. Butsuri Tansa 56 (2003) 391-399 (in Japanese with English abstract)
7. Ikeda R., Kajiwara T., Delazzari B., and Omura K. Characterization of material properties from well-log data in the Unzen scientific drillhole USDP, Japan. Extended abstract of International Unzen Workshop 2005 (2005) 9-10
8. Kajiwara T., Ikeda R., Nakada S., Uto K., and Nishi M. Unzen volcano scientific drilling: well logging data of the USDP-4. Extended abstract of International Unzen Workshop 2005 (2005) 7-8
9. Nakada S., Uto K., Sakuma S., Eichelberger J.C., and Shimizu H. Scientific results of conduit drilling in the Unzen Scientific Drilling Project (USDP). Scientific Drilling vol. 1 (2005) 18-22
10. Pechnig R., Kueck J., Harms U., Buysch A., and Wohlenberg J. Geophysical downhole measurements in the scientific drillhole HSDP Hilo/Hawaii: Logging program and results of interpretation. Eos, Transactions, AGU 2000 Fall Meeting vol. 81 (2000) F1350
11. Sakuma S., Nakada S., and Uto K. Challenging drilling operation into the magmatic conduit shortly after eruption. Extended abstract of International Unzen Workshop 2005 (2005) 3-4
12. Sakuma S., Kajiwara T., Nakada S., Uto K., and Shimizu H. Drilling and logging results of USDP-4 penetration into the volcanic conduit of Unzen Volcano, Japan. J. Volcanol. Geotherm. Res. 175 (2008) 1-12 10.1016/j.jvolgeores.2008.03.039 (this issue)
13. Suto Y., Sakuma S., Takahashi H., Hatakeyama N., and Henfling J. Temperature memory gauge survey and estimation of formation temperature of the USDP-4 conduit hole at Unzen Volcano, Japan. J. Volcanol. Geotherm. Res. 175 (2008) 20-27 10.1016/j.jvolgeores.2008.03.034 (this issue)
14. Uto K., Nakada S., Shimizu H., Sakuma S., and Hoshizumi H. Overview and the achievement of the Unzen Scientific Drilling Project. Extended abstract of International Unzen Workshop 2005 (2005) 1-2