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Calculation and controlled factors of hydrocarbon expulsion efficiency using corrected pyrolysis parameters: A Songliao case study

Xue, Haitao; Dong, Zhentao; Tian, Shansi; Lu, Shuangfang; Greenwell, Hugh Christopher; Luo, Peng; Zhang, Wenhua; Lu, Shudong; Wang, Min; Ma, Wei; Wang, Yifeng

Calculation and controlled factors of hydrocarbon expulsion efficiency using corrected pyrolysis parameters: A Songliao case study Thumbnail


Authors

Haitao Xue

Zhentao Dong

Shansi Tian

Shuangfang Lu

Peng Luo

Wenhua Zhang

Shudong Lu

Min Wang

Wei Ma

Yifeng Wang



Abstract

In recent years, rock pyrolysis parameters combined with a mass balance method have been used to calculate the hydrocarbon expulsion efficiency. However, due to the experimental procedure of rock pyrolysis, the residual hydrocarbon amount (S1) is underestimated, and the hydrocarbon-generation potential of kerogen (S2) is overestimated, so that the hydrocarbon expulsion efficiency calculated from the pyrolysis parameters before correction is higher than the actual value. In this paper, the pyrolysis parameters were corrected by performing pyrolysis before and after the extraction of source rocks, and the hydrocarbon expulsion efficiency of the mudstone of the Qing 1 member of the Ha14 well in Songliao basin was calculated using the chemical kinetics method. The hydrocarbon expulsion efficiencies before and after the correction were considerably different, the hydrocarbon expulsion efficiency of the Ha14 well after correction was 17.5% lower than that before correction. The study show that the higher the abundance and maturity of source rock are, the higher the hydrocarbon expulsion efficiency is; the oil-type organic matter has a higher hydrocarbon-expulsion efficiency than the gas-type organic matter; the interbedded sand and mud type source-reservoir configuration relationship is beneficial to hydrocarbon expulsion; the underwater diversion channel phase has the highest hydrocarbon expulsion efficiency.

Citation

Xue, H., Dong, Z., Tian, S., Lu, S., Greenwell, H. C., Luo, P., …Wang, Y. (2022). Calculation and controlled factors of hydrocarbon expulsion efficiency using corrected pyrolysis parameters: A Songliao case study. Journal of Petroleum Science and Engineering, 208, Article 109026. https://doi.org/10.1016/j.petrol.2021.109026

Journal Article Type Article
Acceptance Date May 26, 2021
Online Publication Date Jul 2, 2021
Publication Date 2022-01
Deposit Date Aug 11, 2021
Publicly Available Date Mar 28, 2024
Journal Journal of Petroleum Science and Engineering
Print ISSN 0920-4105
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 208
Article Number 109026
DOI https://doi.org/10.1016/j.petrol.2021.109026

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