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Keywords: rock physics
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Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3212617
... parameters except the bulk density. However, TOC is the most influential factor in bulk density, overwhelming the effects of the other two variables. As a result, we can build a robust and reliable parameterization for the shale rock physics model from these statistical analyses. Furthermore, it is obvious...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215175
... to both structural complexity and lack of seismic illumination subsalt. To reduce the velocity model building uncertainty for seismic depth imaging in this region, 3D basin modeling was employed to estimate the present-day stress state of the sediments. Rock physics modeling was used to convert present...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216631
... ABSTRACT Both active and passive seismic monitoring of hydraulic stimulation benefit from rock physics knowledge of the seismic signature of hydraulic fractures. The traditional rock physics models for natural fractures may not be a good fit for hydraulic fractures. We started with using...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216194
..., such as applying AVO classifications or a fluid factor. We extend this type of qualitative AVO analysis by using a rock physics driven inversion to predict reservoir properties from intercept and gradient data. In this demonstration we do not use any well log data, but, if available, they could be included...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2991442
... Coast of Texas. However, the complexity of its sedimentary environment makes it hard to accurately locate the isolated productive sand. In this study, rock physics analyses are carried out to provide a better understanding of the reservoir properties. Bulk density, P-wave velocity, and elastic moduli...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2998543
... ABSTRACT We use a workflow that combines various sources of information, such as mud weights, well logs, basin history, and diagenesis, to model pore pressure-velocity relationship based on rock physics principles. This produces velocity templates, which can be used to build velocity models...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2996775
...Research on Seismic Fluid Detection Driven by Rock Physics: A case study in Bohai Bay Yao Li*, Wei Gao , Xinyi Duan , Huihuang Tan CNOOC China Limited, Tianjin Branch, Tianjin, China Summary Seismic rock physics is a physical basis for fluid detection by studying the relationship between rock...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2996371
... ABSTRACT The use of digital rock physics (DRP) in obtaining realistic measurements comparable to conventional laboratorymeasurements depends on many factors. One key factor is our ability to simulate rigorous physical processes at thepore scale. In this work, we perform numerical modeling...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2997613
... on well logs and laboratory based core measurements. This study aims to compare the role of virtual measurement using Artificial Neural Network (ANN) and rock physics analysis using Gassmann equation for the estimation of V in a highly heterogeneous reservoir. The techniques were applied initially...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2996200
... are drilled. This requires developing rock physics methods able to convert seismic observables such as P- and S-impedance, seismic anisotropy, and others into reservoir and geomechanical property estimates. We present a predictive anisotropic rock physics model for unconventional shale reservoirs having...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17738502
... ABSTRACT The segmentation procedure in a digital rock physics workflow is often very challenging and time consuming. Here, we present an alternative method for quickly segmenting digital rock physics images that utilizes machine learning. Elemental SEM images of a core sample serve as inputs...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17785203
... Math2Market GmbH4 Summary Digital Rock Physics (DRP) technology can improve calibration of empirical and theoretical rock physics models in the absence of direct core measurements. To this end, we must quantify the degree of variability associated with computation of elastic and sonic properties using various...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17783117
... to defeat this challenge is the use of rock physics analysis. Based on the well-known success of this technology, it is plausible to consider that reasonable rock physics models can be developed in order to link geological process, diagenesis and depositional with elastic properties of rocks, and seismic...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17538873
... ABSTRACT Defining a meaningful subsalt velocity trend is a major challenge when i) tomography is compromised by poor illumination and/or ii) there is little or no subsalt well information. In such a case, rock physics based velocity modeling can be helpful in building a geologically feasible...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17565513
... artificial intelligence impedance rock physics inversion machine learning gradient annual meeting seismic data upstream oil & gas intercept Inversion of seismic data for reservoir properties: recent advances and the road ahead Patrick Connolly*, PCA Ltd Summary The industry is transitioning...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17634144
... ABSTRACT Digital rock physics is the bridge that connects the pore-scale physical processes with macroscopic rock physical properties. Its key paradigm is to image and digitize the pore space and mineral matrix of rock and then numerically simulating the response of various physical fields...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13879254
... such as well placement, well completion, etc. In the present work, integrated analyses of reservoir flow simulation and rock physics for effective reservoir characterization for feasible CO-EOR and storage in an Indian mature oil field are explored. Based on the results from reservoir flow simulation, we...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13878969
... to Attenuation concept by linking through Rock physics. They are good proxy for Gamma ray (SQp)and resistivity log (SQs) and can clearly can identify zone of interest of hydrocarbon potential. We further demonstrate that these attribute can be used for petrophysical properties prediction with high accuracy...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13861598
... A new brittleness prediction method based on quantitative interpretation using statistic rock physics Lin Wang 1 *, Feng Zhang 1 , Shuangquan Chen 1 , Pengyuan Sun 2 1 CNPC Key Laboratory of Geophysical Prospecting, China University of Petroleum, Beijing, 102249, China 2 R & D Center, BGP, CNPC...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13818870
... ABSTRACT The objective of this study is to demonstrate the power of integrating rock physics theory, measurement and simulation to improve facies prediction in an unconventional limestone and shale reservoir. Reliable facies prediction is a challenge in unconventional reservoir...

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