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Can I read Characteristics and controlling factors of natural fractures in deep lacustrine shale oil reservoirs of the Permian Fengcheng Formation in the Mahu Sag, Junggar Basin, China on EtoBox?
Characteristics and controlling factors of natural fractures in deep lacustrine shale oil reservoirs of the Permian Fengcheng Formation in the Mahu Sag, Junggar Basin, China by Xiaoyu Du; Zhijun Jin; Lianbo Zeng; Guoping Liu; Wenjun He; Mehdi Ostadhassan; XinPing Liang; Sen Yang; Guoqing Lu is a Earth and Planetary Sciences article available to read on EtoBox.
What is Characteristics and controlling factors of natural fractures in deep lacustrine shale oil reservoirs of the Permian Fengcheng Formation in the Mahu Sag, Junggar Basin, China about?
Maximum burial depth of the Permian Fengcheng Formation, which contains significant oil resources in the Mahu Sag, exceeds 4500 m constituting a deep reservoir. Fractures are widespread in the deep lacustrine shale, providing important storage space and fluid conduits. Based on cores, borehole image logs, and petrographic analysis, we identified and analyzed the types and characteristics of fractures and conducted X-ray diffraction (XRD) and Cathodoluminescence (CL) tests to investigate the factors influencing fracture development. We found faults and three types of opening-mode fractures: bed-bounded fractures, unbounded fractures and bed-parallel fractures. Mechanical stratigraphy (depositional rock types modified by diagenesis) and proximity to faults, are main controls of opening-mode fracture occurrence and attributes. Specifically, Dolomitic mudstone with a high carbonate content shows the highest fracture density of 5.24 m -1 . Bed-bounded fractures are mainly developed within brittle layers, with fracture density lower in thicker beds. On the other hand, unbounded (tall) fractures primarily occur near reverse faults (0-1500 m), with orientations parallel to extension direct
Who reads Characteristics and controlling factors of natural fractures in deep lacustrine shale oil reservoirs of the Permian Fengcheng Formation in the Mahu Sag, Junggar Basin, China?
It is typically read by researchers, students, and practitioners in Earth and Planetary Sciences.
- Author
- Xiaoyu Du; Zhijun Jin; Lianbo Zeng; Guoping Liu; Wenjun He; Mehdi Ostadhassan; XinPing Liang; Sen Yang; Guoqing Lu
- Publisher
- Elsevier BV
- Published
- 2023
- Language
- EN
- Field
- Earth and Planetary Sciences (Physical Sciences)