世界上大油气田占有极其重要的地位。全世界原油贮量6,800万吨以上、天然气贮量1,000亿方以上的大油气田情况如下: 1、其数量不到1％,贮量却占全世界油气田总贮量的75％; 2、其产量占目前世界总产量的65～70％,除边远和许多海上地区在开发上投资较大外,就找油气田来说也是经济的。据1970年统计:全世界共已找到187个大油田和79个大气田,到1976年这个数 The world’s large oil and gas fields occupy an extremely important position. The world’s reserves of over 68 million tons of crude oil and more than 100 billion cubic meters of natural gas are as follows: 1. Its quantity is less than 1% and its reserves account for 75% of the total reserves of oil and gas fields in the world. 2. Its output Accounting for 65% to 70% of the current world output. It is also economical to find oil and gas fields, in addition to investing more in the development of remote and many offshore areas. According to 1970 statistics: a total of 187 large fields and 79 large fields have been found in the world. By 1976, this figure