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Petroleum Science and Technology Volume 36, 2018 - Issue 20
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Original Papers

Relationship between methylphenanthrene distribution and organic matter maturity: a case study of Yangchang Formation Chang 7 source rocks, Erdos Basin, China

Zixing LuSchool of Geoscience and Technology, Southwest Petroleum University, Chengdu; View further author information
,
Shijia ChenSchool of Geoscience and Technology, Southwest Petroleum University, Chengdu; Correspondence[email protected]
View further author information
,
Qingbo HeSchool of Geoscience and Technology, Southwest Petroleum University, Chengdu; View further author information
,
Yong LiSchool of Geoscience and Technology, Southwest Petroleum University, Chengdu; View further author information
,
Jingyue ZhangSchool of Geoscience and Technology, Southwest Petroleum University, Chengdu; View further author information
&
Qinbo WuChangqing Oilfield Company, PetroChina, Xi’an, ChinaView further author information
Pages 1718-1724 | Received 26 Jun 2018, Accepted 27 Jul 2018, Published online: 05 Sep 2018
 
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Abstract

The methylphenanthrene component of Chang 7 source rocks in the Ordos Basin was analyzed using gas chromatograph-mass method. The relationship between methylphenanthrene index (MPI), methylphenanthrene distribution fraction (MPDF) and vitrinite reflectance (Ro) was established. The comparative analysis results showed that the MPDF and Ro were positively correlated and the correlation coefficient was high. Therefore, it was more accurate that the Chang 7 source rocks were determined by MPDF. Based on the established relational expression, the maturity of Chang 7 lacustrine source rocks in the Ordos Basin was calculated. The obtained results were consistent with actual geological background.

Additional information

Funding

Funding for this research was provided by programs from the National Science and Technology Project (No. 2017ZX05001002-003).

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