China Petroleum Chemical Corporation

Shearwater Geoservices Software Inc.

Jianxing Hu

Charles Clinton Mosher

Chengbo Li

Frank D Janiszewski

Yu Zhang

Jianhua Yu

Laurence S Williams

Feng Chen

Yequan Chen

Huimin Guan

Fengqi Zhang

Yi Tao

Yunqing Shen

Zhengxue Li

Yong Ma

Bradley Bankhead

Jon Anderson

Jeffrey Malloy

A method for estimating source wavelet for seismic survey includes multiple steps. First, seismic data are collected using seismic data recording sensors and well log data are collected using a well logging tool in a well site in a survey region. The seismic data and the well log data are stored and processed in a computer system. The time-migrated seismic data thus collected and processed is the observed data. The well log data is processed to obtain one or more earth models that represent one or more formation properties; reflectivity modeling is performed to obtain a reflectivity, a band pass filter and time-migrated reflectivity to produce a band-limited reflectivity; the band-limited reflectivity is cross-correlated with the observed data to obtain a weight; and inversion is performed to obtain a source wavelet based on the weight, the reflectivity, and the observed data.

Method and apparatus for source wavelet estimation

An approach for calibrating prestack seismic inversion is provided. This method includes selecting various features from inverted elastic properties to generate reservoir properties; fully connected neural network models are used to learn the mapping between the features and ground truth data at well locations; and the prediction is applied to generate one or more final models for the reservoir characterization of the whole survey region.

Method for calibrating prestack seismic inversion using fully connected neural networks

Method for acquiring seismic data is described. The method includes obtaining undersampled seismic data acquired from a non-uniform sampling grid. Attenuating multiples from the undersampled seismic data.

Offshore application of non-uniform optimal sampling survey design

Growing community of inventors

Houston, TX, United States of America

Jianxing Hu