石油实验地质2012，Vol.34Issue(2)：178-181,185,5.
海底沉积物中热解成因天然气水合物的形成与分布
Generation and distribution of thermogenic natural gas hydrates in submarine sediments
摘要
Abstract
With an one-dimensional equipment designed by China University of Petroleum, the simulation of natural gas hydrate generation was carried out using conventional thermogenic natural gas as source and submarine sediment as porous medium. Resistivity method was applied to analyze the generation and distribution of natural gas hydrate in sediment. The results showed that resistivity varied between different positions of sediment. In the middle and lower position, resistivity first increased and then became stable. While in the middle and upper po sition , resistivity changed like zigzag, that was, decreasing, increasing (or stable) , decreasing, increasing and stable. The changes of resistivity indicated the generation and distribution of natural gas hydrate in different positions. The natural gas hydrates in the middle and lower positions had come into being while those in the middle and upper positions were still during the induction and nucleation stages. Influenced by temperature gradient, natural gas hydrates generated slowly and scattered. If gas supplied sufficiently, natural gas hydrates might generate massively in the middle and upper positions. Finally, a hydrate generation and distribution model was established based on the above-mentioned analyses.关键词
天然气水合物/热解气/电阻率/水合物形成/海底沉积物Key words
natural gas hydrate/ thermogenic gas/ resistivity/ hydrate generation/ submarine sediment分类
能源科技引用本文复制引用
林晓英,曾溅辉..海底沉积物中热解成因天然气水合物的形成与分布[J].石油实验地质,2012,34(2):178-181,185,5.基金项目
国家863项目(2006AA09A209)资助. （2006AA09A209）
