致密砂岩气藏研究思路及勘探方法探讨

致密砂岩气藏,作为最为现实的未来油气资源的接替领域,与早期常规天然气气藏研究的不同在于其勘探思路及指导思想的不断转变。致密砂岩气勘探的重点集中于在有效生烃范围内寻找优质储层甜点,烃源岩和高效储层展布规律的研究是亟需解决的核心问题。高分辨率地震资料保幅处理、曲线重构储层预测技术以及叠前AVO属性分析烃类检测方法三者有效结合,为实现致密砂岩气勘探取得突破提供了有效途径。

Research Thinking And Explorationg Method Of Tight Sand Gas

The concept of tight sands tone gas reservoirs is currently no uniform standard, domestic generally tight sandstone gas reservoirs physical condition is defined as less than 10% porosity and permeability is less than 0.5 × 10-3μm2. Tight sandstone gas reservoirs as a future oil and gas resources of the replacement sequence, the study of ideas and research methods is still at the exploratory stage, and early studies of conventional gas reservoirs in the key difference is that idea of exploration, guiding the changes. The exploration will focus on the efficient search for high-quality hydrocarbon reservoir within the distribution area, hydrocarbon source rock and reservoir distribution rules is basic geological research needs to solve the core problem. High-resolution seismic amplitude preservation processing, curve reconstruction of reservoir prediction and pre-stack AVO attribute analysis of hydrocarbons and effective combination of the three detection methods for achieving a breakthrough exploration of effective ways.