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迄今石油勘探一直是在能够提供最大效益的地区,特别是地质条件最有利和最清楚的地区进行.然而,新的勘探观念正改变着方法学,并且促使勘探人员不仅要寻找那些明显的圈闭(背斜、穹隆、断层构造),而且也要寻找隐蔽圈闭,如地层圈闭,位于不整合之下的圈闭,与隐伏地貌伴生的圈闭,以及那些与构造相关或不相关的圈闭.对世界上已投产和有待勘探的含油沉积盆地的仔细研究表明,有许多地区尚需勘查,尤其是海上.全世界沉积盆地含有远景面积近77,643,000平方公里.其中近51,248,000平方公里在岸上,约26,395,000平方公里位于洋盆.本文着重讨论世界近海地区勘探的重要性.虽然,世界上一些新的油气田正在被不断发现和开发,但是现正在开采的盆地中仍有可能发现大量有远景的具经济价值的油气.加速新区的发现主要依靠大量的物探和钻探工作,以及新的勘探概念的发展.
Until now oil exploration has been conducted in areas that provide the greatest benefits, particularly in the most favorable and clear geological conditions, however new exploration concepts are changing methodologies and have prompted exploration personnel not only to look for the obvious traps (Anticlines, domes and fault structures), as well as hidden traps, such as stratigraphic traps, traps under unconformities, traps associated with hidden landscapes, and those associated with or unrelated to tectonics Close studies of the world’s oil-bearing sedimentary basins that have been put into operation and are yet to be explored indicate that exploration is still required in many areas, especially at sea, and that the sedimentary basins of the world contain nearly 77,643,000 square kilometers of which nearly 51,248,000 square kilometers are onshore, About 26,395,000 km2 is located in the oceanic basin.This article focuses on the importance of exploration in offshore regions of the world.Although some of the newer oil and gas fields in the world are being continuously discovered and developed, it is still possible to find a large number of long-term prospects in the basins being mined Economic value of oil and gas to accelerate the discovery of the new zone mainly rely on a large number of geophysical and drilling work and new exploration concept of hair .