熱分解GCによる中国吉林油田堆積層別含有有機物の分析

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Organic matter in the oil and the residues after M. A. B. (Methanol-Acetone-Benzene) extraction of source-rocks, which were collected by drilling production tests from various nonmarine depositional layers in Qianan and Nongan area belonging to Jilin oilfield, were analyzed by Curie-point pyrolysis gas chromatography (pyrolysis-GC), elemental analysis, and infrared spectroscopy (IR). Genetic source studies have been performed on the basis of the correlation between the distribution of pyrolysates from kerogen and oils collected in various areas and depositional formations. The results in this study indicated oil-source rock correlations as follows: Samples from Nongan area: The n-alkanes distribution patterns in pyrolysates of the oils produced in K_1q^4 formation were similar to those of the residues from the Jurassic K_1qn^1 source rocks. This fact indicates that K_1q^4 oils had been generated from the Jurassic source rocks. This result is consistent with the conclusion of previous studies. Samples from Qianan area: Although previous works concluded that the K_1q^4 oils have genetic relationship whth K_1qn^1 formation source rocks, the n-alkanes distribution partterns in pyrolysates of K_1q^4 oil were quite different from those of the residues prepared from K_1qn^1 source rocks. This result suggests that K_1q^4 is not the source formation of the oils from K_1qn^1 and that another source formation for K_1q^4 reservoir exists.
日本有機地球化学会の論文
1996-05-30

熱分解GCによる中国吉林油田堆積層別含有有機物の分析

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