Confocal laser scanning and atomic-force microscopy in estimation of elastic properties of the organic-rich Bazhenov Formation
Confocal laser scanning and atomic-force microscopy in estimation of elastic properties of the organic-rich Bazhenov Formation (in Rock physics, Colin M. Sayers (prefacer) and Satinder Chopra (prefacer))
Leading Edge (Tulsa, OK) (January 2009) 28 (1): 18-23
- atomic force microscopy data
- Bazhenov Formation
- bedding
- carbon
- clastic rocks
- elastic constants
- elasticity
- heterogeneity
- Jurassic
- kerogen
- laser methods
- macerals
- Mesozoic
- organic carbon
- organic compounds
- physical properties
- planar bedding structures
- Poisson's ratio
- reservoir properties
- sedimentary rocks
- sedimentary structures
- SEM data
- shale
- thermal maturity
- Young's modulus
- confocal laser scanning methods
Shales are one of the most complicated and intriguing natural materials on Earth. Their multiphase composition is continually evolving over various scales of length and time, creating the most heterogeneous class of rocks in existence. The heterogeneities manifest themselves from the submicroscopic scale to the macroscopic scale, and all contribute to a pronounced anisotropy and large variety of shale macroscopic behavior (Ulm and Abousleiman, 2006). Moreover, the effects of the multiphase composition are amplified within organic-rich shales that contain varying amounts of kerogen. Despite significant research into the properties of kerogen, fundamental questions remain regarding how the intrinsic rock physics properties of the organic fraction affect the macroscopic properties of host shales.
