Preliminary Discussion on Gas Hydrate Geological System
Preliminary Discussion on Gas Hydrate Geological System
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发表时间：
2008
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通讯作者：
Wu Bi-hao
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作者：
Wu Bi-hao
针对天然气水合物理论预测与真实的产状存在差异、天然气水合物标志与其存在的关系不一致、天然气水合物分布规律不规则等问题，（垂直和水平）由钻井和间接证据（如世界各地的BSR）表明，如何加强对天然气水合物形成过程及其分布规律的研究，具有重要的地质意义。提出了天然气水合物地质系统的概念，包括气态烃源子系统、含气流体运移子系统和天然气水合物成藏子系统三个组成部分，并根据世界范围内典型的天然气水合物赋存状态，初步总结了几个关键的天然气水合物地质系统。
In consideration of the discrepancy between gas hydrate theoretical prediction and its real occurrence,the inconsistent relationship between gas hydrate indicator and its existence,the irregular gas hydrate distribution law(vertically and horizontally)indicated by drilling and indirect evidence such as BSR around the world,how to strengthen studies on gas hydrate formation process and its distribution law seems practically significant in geological view.This paper attempts to bring forward the concept of gas hydrate geological system,which contains three components of gaseous hydrocarbon source sub-system,gas-bearing fluid migration sub-system and gas hydrate reservoir accumulation sub-system.In the meanwhile,some key gas hydrate geological systems are preliminarily summarized based on worldwide typical gas hydrate occurrences.