该方法简单方便，计算量小，根据测井曲线即可判别出油层水淹级别。
This method was simple, convenient and easy to calculate, the level of submerged oil layer could be identified with the logging curves.
要以大量的石油碳氢化合物去填满一个储油层可能需要几百万年的时间，而从新发现的油田中打出油来则只需要30年或稍多一点的时间。
It may take millions of years to fill such a reservoir with a considerable amount of petroleum hydrocarbons, but it takes only thirty years or little more to pump the oil out of a newly-found field.
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