Predicting Source Rock Distribution of the Ninth Member of the Upper Triassic Yanchang Formation Based on Well-Logging Parameters and TOC Values in the Longdong Area, Ordos Basin, China
Xiao Hui, Xuan Ke, Yalin Qi, Shuyong Shi, Jing Zhu, Yunpeng Wang · 2024
Read Predicting Source Rock Distribution of the Ninth Member of the Upper Triassic Yanchang Formation Based on Well-Logging Parameters and TOC Values in the Longdong Area, Ordos Basin, China by Xiao Hui, Xuan Ke, Yalin Qi, Shuyong Shi, Jing Zhu, Yunpeng Wang (2024) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-11683612.txt.
Description
Xiao Hui and co-authors mapped where oil-forming rock lies in one layer of China's Ordos Basin in a 2024 study. New tight oil finds in the Chang 9 layer raised a question: did the oil seep from that same layer's dark shale, or from a richer layer below? The shale's spread was unknown.
The team tied well-log readings to the carbon content of shale cores from thirty wells and built a prediction model. It beat older models by a clear margin. The map shows source rock from one to twelve meters thick, thinning from northeast to southwest. Oil chemistry in the thick northeast matches the local shale, backing the same-layer origin there. Elsewhere, the oil likely rose from the deeper rich layer. The method can guide drilling across the area.
Catalog record
| CREATOR | Xiao Hui, Xuan Ke, Yalin Qi, Shuyong Shi, Jing Zhu, Yunpeng Wang |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 26 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |