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近些年来西西伯利亚最大油气区内深度在3000m以上的结构复杂的油气藏在保证苏联资源稳定增长方面所起的作用在不断地增长。例如,1986年间29%新找到的石油后备储量集中在日产小于10t的油藏,在1987年上半年10%新找到的后备储量其日产油量近5t。在资源平衡表中,储量的增长反映出潜在资源结构变化的客观规律。在早期阶段,开发的是最大的和产量高的油藏,在晚期阶段,结构复杂及产量低的油藏具有更大的价值。在区域开发的晚期阶段有计划地进行地质勘探,为的是查明产油量高的大油藏。概率法和风险因素仍是勘探过程中有代表性的特点。但是,了解结构复杂油藏分布
In recent years, the complex reservoirs with a depth of more than 3000 m in the largest oil and gas region of West Siberia have been steadily growing in their role of guaranteeing the steady growth of Soviet resources. For example, 29% of newly found oil reserves in 1986 were concentrated in reservoirs with a daily output of less than 10 tons. In the first half of 1987, 10% of the newly found reserves were near daily production of 5 tons. In the resource balance sheet, the increase in reserves reflects the objective law of changes in the structure of potential resources. In the early stages, the largest and most productive reservoirs were developed, with more value in the late stages of complex and less productive reservoirs. In the late stages of regional development, there is a planned geological exploration to identify large oil reservoirs with high oil production. Probability methods and risk factors are still representative of the exploration process. However, understand the distribution of structurally complex reservoirs