Exxonmobil Upstream Research Company

Yaping Zhu

Enru Liu

Leonard J Srnka

Xinyou Lu

Dominique Gillard

David R Converse

Quinn R Passey

Shiyu Xu

Kevin M Bohacs

Xiaoxia Xu

Michael A Payne

Fuping Zhou

Kaushik Bandyopadhyay

Carrie X Zhan

Carrie Xin Zhan

A system and method to predict rock strength by directly inverting for petrophysical properties. In one embodiment, seismic data is received or obtained from a seismic survey (step). The seismic data are then conditioned (step) in order to prepare them for an inversion process (step). The inversion process has an embedded rock physics model that allows the inversion to be formulated based upon, and thereby outputting or calculating (step), petrophysical properties. Rock strength data may then be calculated from the petrophysical properties (step).

Method for predicting rock strength by inverting petrophysical properties

Method for assessing hydrocarbon source rock potential of a subsurface region without well log information. The method uses surface electromagnetic () and seismic () survey data to obtain vertical profiles of resistivity and velocity (), which are then analyzed in the same way as well log data are analyzed by the well known Delta Log R method ().

Method for remote identification and characterization of hydrocarbon source rocks using seismic and electromagnetic geophysical data

A hydrocarbon exploration method is disclosed for generating anisotropic resistivity models of a subsurface reservoir from seismic and well data using a rock physics model. In one embodiment, the method comprises: selecting wells within a region of interest (); obtaining a plurality of rock properties () and adjusting selected rock parameters () in the calibration of the rock physics model at the well locations; inverting porosity and shale content from seismic data (); propagating the calibrated rock physics model to the region of interest () and calculating effective resistivity for the entire region of interest (). The inventive method also provides for analyzing the uncertainty associated with the prediction of the resistivity volume.

Method for generating anisotropic resistivity volumes from seismic and log data using a rock physics model

Growing community of inventors

Katy, TX, United States of America

Yaping Zhu