论文部分内容阅读
苏1986年采油6.145亿吨,天然气6860亿方,已发现2550个油气田,其中1700个是近20年发现的,1986年钻探井720万米,除东西伯利亚,滨里海、西西伯利亚和中亚的深层(2400米)和大陆架外,苏油气盆地已处于资源勘探的中期和高程度期,在世界实践中明显见到资源勘探程度达到20～30%以后,勘探效果下降,这是世界所有含油气盆地的特有的客观规律,影响勘探效果下降的原因是:新发现油气田储量变小,油气田构造更加复杂,勘探深度加大,勘探向交通不便和气候恶劣区发展。近15年苏准备的每个构造面积减小了30%,每个新油气田储量减少1/2,高闭合度构造减少,20—50米闭合度构造逐渐占主要地位在这些不利趋势下,为提高勘探效果,应提高最远景区的科学预测水平,以便集中普查,提
In 1986, oil production was 614.5 million tons and natural gas was 686 billion cubic meters. There were 2,550 oil and gas fields discovered, of which 1,700 were discovered in the recent 20 years. In 1986, the drilling wells numbered 7.2 million meters. Except for East Siberia, the Caspian Sea, West Siberia and Central Asia In the deep (2,400m) and continental shelf, the Su-Gas Basin has been in the middle and high stage of resource exploration. It is obvious in the practice of the world that the prospecting efficiency will drop after the level of resource exploration reaches 20-30% The peculiar objective law of the basin and the reasons for the decline of the exploration result are as follows: the reserves of newly discovered oil and gas fields become smaller, the structures of oil and gas fields are more complicated, the depth of exploration is increased, and the exploration is made to the development of traffic inconvenience and bad weather. Each tectonic area of the Soviet reserve has been reduced by 30% in the recent 15 years, and each new oil and gas field reserves has been reduced by 1/2. The structure with a high degree of closure has been reduced and the closure structure with a size of 20-50 meters has gradually taken the dominant position. Under these unfavorable trends, Improve exploration results, we should raise the level of scientific prediction of the most distant areas in order to focus on the census, mention