Abstract
In this article, we present a method used to model the initiation of bitumen-filled microfractures in immature, organic-rich source rocks. The first part presents the method used to calculate the stress distribution around the kerogen particles. The second part explains the method used to calculate the pressure change as a function of the transformation ratio and the resulting overpressure. • The effective principal stresses acting on the kerogen boundary were calculated. • Kerogen geometries were determined using the measured aspect ratio of the kerogen traces obtained from the petrography observation. • To estimate overpressure, the increase in pressure due to the transformation of kerogen to bitumen was calculated.
| Original language | English (US) |
|---|---|
| Article number | 101817 |
| Journal | MethodsX |
| Volume | 9 |
| DOIs | |
| State | Published - Jan 2022 |
Bibliographical note
Funding Information:This research was funded by the King Abdullah University of Science and Technology (KAUST) Endowment, faculty baseline funding (V. Vahrenkamp). The authors thank the Ministry of Energy and Mineral Resources (Jordan) for providing core samples from the cores drilled by Shell (represented by the Jordan Oil Shale Company (JOSCO)) in Jordan. We also thank Sander van den Boorn and John Stainforth for productive discussions.
Publisher Copyright:
© 2022 The Authors
Keywords
- Bitumen-filled microfractures
- Kerogen shape
- Modeling the initiation of bitumen-filled microfractures from the original kerogen shape
- Overpressure
- Source rocks
- Stress distribution
ASJC Scopus subject areas
- Clinical Biochemistry
- Medical Laboratory Technology