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http://dx.doi.org/10.5855/ENERGY.2012.21.1.055

Well Data Interpretation using Software Developed for Estimation of Petrophysical Properties in Gas Hydrate Bearing Sediments in Ulleung Basin, Offshore Korea  

Seo, Kwang-Won (E&P Technology Institute, Korea National Oil Corporation)
Lim, Jong-Se (Department of Energy & Resources Engineering, Korea Maritime University)
Publication Information
Journal of Energy Engineering / v.21, no.1, 2012 , pp. 55-67 More about this Journal
Abstract
For the development of gas hydrate as new future energy resources, the drilling was carried out at the five locations where have high potential as gas hydrate bearing sediments in Ulleung basin, offshore Korea in 2007. Well log data were obtained from all wells and core data were procured from 3 wells, UBGH1-04, UBGH1-09 and UBGH1-10. In this study, user-friendly software, "KMU GH Logs 2010", is developed and this software is based on the estimation methods developed in previous study for gas hydrate bearing sediments and the properties estimated from UBGH1-04, UBGH1-09 and UBGH1-10. Petrophysical properties in un-cored wells, UBGH1-01 and UBGH1-14, are also estimated by using well log data. Porosity is estimated by density log and gas hydrate saturation is calculated by sonic log and resistivity log. Sedimentary facies are estimated by applying the linear discriminant analysis using both well log and sedimentary facies data from core analysis. It is confirmed that DITM facies and MSS facies appeared signs of gas hydrate disassociation are able to be distinguished by the method.
Keywords
Ulleung basin; Porosity; Gas hydrate saturation; Sedimentary facies; KMU GH Logs 2010;
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Times Cited By KSCI : 3  (Citation Analysis)
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