陆相含油气盆地中高勘探程度区油气精确勘探方法研究

"定凹选带"和"滚动勘探开发"等油气勘探方法为中国石油工业的大发展作出了重要贡献,但它们都不是针对油气勘探的直接目标——油气藏进行勘探。在"主运移通道控烃理论"的指导下,在"定凹选带"和"滚动勘探开发"等油气勘探方法和认真研究陆相盆地复杂的油气成藏机理及主控因素等的基础上,针对陆相盆地中高勘探程度区的油气勘探特点,笔者提出了油气精确勘探法。该方法是在定源的前提条件下,描述油气主运移通道的几何形态和空间分布状况,搞清油气运移的轨迹和圈闭的发育史,以类似"顺藤(主运移通道)摸瓜(油气藏)"的方式确定油气聚集的最有利场所,并优选目标——油气藏实施钻探。文中对油气精确勘探法进行了较为系统的研究,提出了油气精确勘探法的主要研究内容、工作流程和应有的成果图件。使用油气精确勘探法可以最大限度地降低油气勘探风险,最大幅度地提高油气勘探的效益。

Research of oil and gas exploration method accurately in the area of middle-high exploration level in the continental basin

The petroleum exploration technologies that are concisely expressed as "revealing oil generation first and then selecting zone for exploration","rolling exploration and development" etc.,made an important contribution to the development of our country's petroleum industry,but they are not aimed at the direct target of petroleum exploration—the oil-gas reservoir. On the guide of the principle of "main migration path controlling hydrocarbon" and on the basis of the above-mentioned exploration technologies,and of the earnest research on the complicated mechanism of oil-gas reservoir and main controlling factors,the authors put forward a fair-new petroleum exploration method—the method of accurately exploring oil and gas,in the light of the characteristics of oil-gas exploration in the area of middle-high exploration level in the continental basin. The method describes the geometrical shape and space distribution states of the main migration path of petroleum,traces out the oil-gas moving tracks,makes sure that the best vantage point of petroleum gathering together be determined in the manner of "tracking down the target (the oil-gas reservoir) by following clues (the main migration path of petroleum)" ,and drills the best of all targets—the oil-gas reservoir. The method of accurately exploring oil and gas is investigated in this paper in a relatively systematic manner,and the content of the main research method,the work process and the maps of results are proposed. The risk of petroleum exploration can be minimized,and the benefit of petroleum exploration can be raised to the utmost by this method.