Well Logging Characteristics and Evaluation of Hydrates in Qilian Mountain
详细信息
- 责任者：Guo Xingwang (Chinalco Energy Company Limited ; Beijing 100082 ; China) ; Zhu Youhai
- 刊名：Geological Bulletin of China
- 出版年：2011
- 卷期：30(12)
- 关键词：天然气水合物 ; gas hydrates ; 地球物理测井 ; geophysical logging ; 祁连山 ; Qilian Mountains
- 页码：p.1868-1873
- 图表：1 illus., 1 table, 20 refs.
- 分类号：1600
- issnNo：ISSN1671-2552
- isbnNo：CN11-4648/P
摘要
//Wireline logging was employed to confirm gas hydrate bearing sediments in the Scientific Drilling Project of Gas Hydrate in Qilian Mountain Permafrost. There were seven instruments including resistivity, sonic, natural gamma, density, temperature caliper and inclination logging tools in this project. The results show that the porosity derived from resistivity agrees with that from core analysis, while in-situ gas hydrate saturations estimated from Standard Archie and Modified Archie equation are different. Therefore, the gas hydrate sample should be further studied so as to develop an appropriate rock-physical model which can guide the future evaluation of gas hydrate.