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中国是发现和利用石油和天然气最早的国家之一。然而,直到新中国诞生前,近代油气地质勘探仍未真正起步,可谓既无统一计划,又无资金和先进设备,仅由少数专家在一些局部地区(如陕北、甘肃、新疆、四川、台湾等地区)进行过不同程度的地面地质调查和少量钻井。到1949年底总共发现了陕北延长、甘肃玉门和老君庙、新疆独山子以及台湾出矿坑等5个油田以及7个小气田。解放前年产原油仅为12万吨。
China is one of the earliest countries to discover and use oil and gas. However, it was not until the founding of New China that modern petroleum geology exploration has not really begun yet. It can be described as neither a unified plan nor a capital and advanced equipment. Only a few experts in some areas (such as northern Shaanxi, Gansu, Xinjiang, Sichuan and Taiwan Etc.) conducted different degrees of ground geological survey and a small amount of drilling. By the end of 1949, a total of 5 oilfields and 7 small gas fields were discovered in Yanchang, northern Shaanxi, Yumen and Laojun Temples in Gansu, Dushanzi in Xinjiang and ore pits in Taiwan. Before liberation crude oil was only 120,000 tons.