透镜体油气成藏机理研究现状与发展趋势

THE ACTUALITY AND DEVELOPING TREND IN STUDY ON THE ACCUMULATIONAL MECHANISM OF THE LENS RESERVIOR

随着石油勘探研究的不断深入,砂岩透镜体油藏日益受到重视。国内外学者提出了多种成藏机制,包括未知重力运动机制作用下,少数流体分子的个别特性控制透镜状砂岩油藏聚集;毛细管力作用下油气替换透镜体中的孔隙水;烃浓度差是油气向砂体运移的主要动力;流体压力差使油气首先沿着裂隙向砂岩透镜体中运移、聚集而成藏;差异突破作用使砂岩透镜体成藏等。成藏动力学、成藏模式及主控因素、定量研究、物理模拟实验、数值模拟及分布预测等将是今后发展的方向。

:With the gradually development of the petroleum exploration, more and more lens reservoirs have been discovered and been paid more and more attention. Many academicians researched their formation and accumulation mechanism and put forward manifold mechanisms, including the special mechanism of minority liquid molecular controlling the accumulation of lens reservoir by unknown gravitation, difference between liquid pressure compelling hydrocarbon to accumulate firstly in the lens reservoir, along cranny in the case of hydrocarbon replacing pore water in the lenticular body under capillary pressure, difference breakthrough employing hydrocarbon entering lens reservoir and so on .Present modeling experiments for petroleum formation and accumulation are focus on microcosmic mechanisms and future study direction would be accumulation dynamics, model ,main control factors, quantitative research, physical simulation experiment , distribution forecasting and so on. 