Sedimentary environment and its evolution, distribution of sedimentary facies and sand bodies are discussed on the base of the data of log, drilling and c, o isotope.

本文利用测井、钻井和C、O同位素等资料，研究了核二段各砂组沉积时期的沉积环境、相带分布、砂体展布以及沉积演化规律。

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Mr. O'CONNOR: The ICP technology involves drilling holes--vertical holes into the ground and inserting long electric heaters, which then gradually heat the rock over a long period of time, and over a long period of time--by that, I mean two or three or more years.

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