Exxonmobil Research and Engineering Company

International Business Machines Corporation

Exxonmobil Technology and Engineering Company

Dimitar Vasilev Trenev

Sumathy Raman

Don Greenberg

Huseyin Denli

Cody J Macdonald

Diego A Hernandez

Tanvi Pradeep Gujarati

Spencer Troy Stober

Stuart Maxwell Harwood

Ashutosh Tewari

Sarah Mostame

Techniques regarding determining thermodynamic observables of a chemical system are provided. For example, one or more embodiments described herein can include a system, which can comprise a memory that can store computer executable components. The system can also include a processor, operably coupled to the memory, and that can execute the computer executable components stored in the memory. The computer executable components can include a potential energy component that can fit a potential energy function to a computed potential energy surface of a molecule. The computer executable components can also include a vibrational mode component that can compute an intramolecular vibrational mode of the molecule based on the potential energy surface fitted with the potential energy function. Also, the computer executable components can include a partition component that can compute a partition function based on the intramolecular vibrational mode.

Quantum computing thermodynamic observables of a chemical system

A method and apparatus for seismic analysis include obtaining an initial geophysical model and seismic data for a subsurface region; producing a subsurface image of the subsurface region with the seismic data and the geophysical model; generating a map of one or more geologic features of the subsurface region by automatically interpreting the subsurface image; and iteratively updating the geophysical model, subsurface image, and map of geologic features by: building an updated geophysical model based on the geophysical model of a prior iteration constrained by one or more geologic features from the prior iteration; imaging the seismic data with the updated geophysical model to produce an updated subsurface image; and automatically interpreting the updated subsurface image to generate an updated map of geologic features. The method and apparatus may also include post-stack migration, pre-stack time migration, pre-stack depth migration, reverse-time migration, gradient-based tomography, and/or gradient-based inversion methods.

Automated seismic interpretation-guided inversion

A two-stage method for iteratively inverting geophysical data for the purpose of subsurface imaging, including: obtaining at least one geophysical dataset and an initial subsurface model; representing subsurface such that a geometry of a geobody is defined using a set of basis functions, and a number of such basis functions is significantly smaller than the number of cells used in cell-based geobody representations, wherein an order of magnitude reduction is two or more for 2-D domains and 3 or more for 3-D domains; in a first stage, successively updating the initial subsurface model, only for the geobody, by performing iterative low-dimensional geophysical inversion based on minimizing a misfit between simulated geophysical data and the geophysical dataset, wherein the simulated geophysical data is generated from a current subsurface model at each iteration; generating a subsurface image from a final updated subsurface model obtained via the low-dimensional geophysical inversion, wherein the subsurface image includes an inverted geobody; in a second stage, successively updating the subsurface model with the inverted geobody by performing iterative cell-based geophysical inversion based on minimizing a misfit between simulated geophysical data and the geophysical dataset, wherein the simulated geophysical data is generated from a current subsurface model at each iteration.

Inversion of large, nearly-homogeneous geobodies via ultra low-dimensional shape representation using orthogonal basis functions

Growing community of inventors

Sleepy Hollow, NY, United States of America

Dimitar Vasilev Trenev