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Lee, C.*; Matsuoka, Toshiyuki; Ishigaki, Koichi; Tanoue, Masayoshi*; Yamaguchi, Shinji*; Tsuchiya, Terumitsu*; Matsuoka, Toshifumi*
Proceedings of 11th International Symposium on Recent Advances in Exploration Geophysics (RAEG 2007), p.69 - 71, 2007/04
Image Points are defined through geometry of sources, receivers and reflectors. IP (Image Point) transform is one type of Radon transform which change common shot section to IP domain (r-x). By the IP transform, reflection signals in time domain can be accumulated and enhanced in IP domain. We applied the IP transform to the field data of RVSP that had been carried out at the Mizunami Underground Research Laboratory (MIU) site. We could get the fault image around the MIU site using IP transform.
Lee, C.*; Matsuoka, Toshiyuki; Ishigaki, Koichi; Tanoue, Masayoshi*; Narita, Norifumi*; Kojima, Masakazu*; Tsuchiya, Terumitsu*; Matsuoka, Toshifumi*
Proceedings of 10th International Symposium on Recent Advances in Exploration Geophysics (RAEG 2006), p.143 - 146, 2006/00
It is known that 3-D Vertical Seismic Profile (VSP) method has an advantage on imaging the fault and fracture zone near the borehole, especially steeply dipped structure. Cosma et al (2003) has developed the new technique named Image Point Transform (IP Transform) and applied to offset VSP data to improve the week reflection signals from the steeply dipped fracture. We test the applicability of this method to the 3-D Reverse VSP data of numerical simulation and develop the method of imaging named spectral operator of middle point of IP. In the results of applying to 3-D model of steeply dipped fracture, we know that this method is applicable to 3-D reverse VSP data and could get the good image of fracture reconstructed by spectral operator of middle point of IP.
Tsuchiya, Terumitsu*; Narita, Norifumi*; Tani, Kazuyuki*
JNC TJ7400 2005-022, 45 Pages, 2004/01
no abstracts in English
Tsuchiya, Terumitsu*; Narita, Norifumi*
JNC TJ7440 2005-059, 151 Pages, 2003/03
JNC-TJ7440-2005-059.PDF:30.48MB
no abstracts in English
Koo, Shigeru*; Makino, Hitoshi; Yamaguchi, Masaaki; Ebashi, Takeshi; Takahashi, Hirokazu*; Tsuchiya, Terumitsu*; Mitsuyama, Kazuaki*
no journal, ,
no abstracts in English
Koo, Shigeru*; Yamaguchi, Masaaki; Makino, Hitoshi; Tsuchiya, Terumitsu*; Kanzaki, Tametoki*
no journal, ,
A deep borehole disposal has been considered as a disposal option and various technical studies in various countries have been reported in recent years. This study summarizes the main points for discussion on deep borehole disposal and the technical issues for its implementation through research of and comparison among multiple examples in other countries. In addition, we will try to examine the points and issues of deep borehole disposal more specifically through, for example, case studies on the drilling of deep boreholes and the maintenance of the borehole walls, which are one of the important prerequisites for the implementation of deep borehole disposal.