Novel Method of Whole Rock Pyrolysis and Application to the Evaluation of Source Rock

XIE Zeng-ye; JIANG Zhu-sheng; ZHANG Ying; LI Jian; HU Guo-yi; WANG Chun-yi; LI Zhi-sheng; LUO Xia

The pyrolysis on-line gas chromatographic method of rock simulation,developed by Langf ang Branch of Research institute of Petroleum Exploration and Development,is a novel laboratory techniCue used to simulate hydrocarbon formation,which employs the unconventional grain size(0.5 ~2mm）. The results detected from the novel method of pyrolysis rock chips show that (1)The pyrolysate yields of unit Cuality rock of different samples are similar to that of conventional hydrous closed-system， so the t wo methods are comparable.(2)Rock pyrolysis experiment can reflect the yields of gas generated fromits host rock in different evolution stage. (3)The novel method is more valid in the potential evaluation of gas generation compared to that of conventional organic carbon in different evolution stage.(4)Anumber of conventional samples can be tested in rock pyrolysis experiment for its economical and simple method and the analytical cycle is short, so it is an available and credi ble techniCue for the judgement of validity and the Cuantitative evaluation of source rock. This technique will play more important role in the evaluation of source rock during the exploration of petroleum.

1 China University of Geosciences, Beijing,100083;

2 Langfang Branch of Research institute of Petroleum Exploration and Development, Langfang, Hebei,065007

Received Date: 2001-07-11

Rev Recd Date: 2001-11-20

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Abstract: The pyrolysis on-line gas chromatographic method of rock simulation,developed by Langf ang Branch of Research institute of Petroleum Exploration and Development,is a novel laboratory techniCue used to simulate hydrocarbon formation,which employs the unconventional grain size(0.5 ~2mm）. The results detected from the novel method of pyrolysis rock chips show that (1)The pyrolysate yields of unit Cuality rock of different samples are similar to that of conventional hydrous closed-system， so the t wo methods are comparable.(2)Rock pyrolysis experiment can reflect the yields of gas generated fromits host rock in different evolution stage. (3)The novel method is more valid in the potential evaluation of gas generation compared to that of conventional organic carbon in different evolution stage.(4)Anumber of conventional samples can be tested in rock pyrolysis experiment for its economical and simple method and the analytical cycle is short, so it is an available and credi ble techniCue for the judgement of validity and the Cuantitative evaluation of source rock. This technique will play more important role in the evaluation of source rock during the exploration of petroleum.

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Reference (11)

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Novel Method of Whole Rock Pyrolysis and Application to the Evaluation of Source Rock

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