Theory and Practices on Exploration Technology of Land Gas Hydrates in China
Abstract：According to the problems existed in the exploration technology of the land gas hydrates, with the analysis on the development and present status of the exploration technologies at home and abroad, based on the exploration of the gas hydrates in Qinghai Muli Coalfield, the site practices and theoretical analysis method were applied to the study on the conventional logging parameters and the sim- ple temperature measuring method. The results showed that the conventional logging parameters would be feasible to the comprehensive ex- planation of the freezing ground. The achievement was successfully applied to the full area of Muli Coalfield. The drilling borehole num- bers of the liked gas hydrates and the layer number of the liked gas hydrates were found. The theoretical analysis found that the tempera- ture measured with the simple temperature measuring method had an error to the actual temperature. The error correction value was 20 m obtained from the site measurement and the theoretical calculation combination. The actual depth of the gas hydrates was accurately calcu- lated and a distribution drawing of a single borehole accumulated depth for the seemed gas hydrates was made.
Keywords：land gas hydratesexploration technologyMuli Coalfieldconventional logging parameterssimple temperature measure-menterror correction
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 27-29,60 )