The Use of Electrical and Seismic Methods for Imaging Shallow Subsurface Structure of Limestone at Batu Caves, Kuala Lumpur, Malaysia

Abdul Rahim Samsudin, Mohammed I. Abu Shariah, Umar Hamzah

Geological Society of Malaysia (GSM)

... at depth ranging from 15 to 26 meters below ground. Result of the two dimensional resistivity inverse model of the first traverse indicates...

Uncertainty quantification for full-waveform inversion with a mini-batch gradient-based sampling method

Zeyu Zhao, Mrinal K. Sen

International Meeting for Applied Geoscience and Energy (IMAGE)

... for uncertainty quantification in geophysical inverse problems by including derivative information in MCMC sampling (Martin et al., 2012; Biswas and Sen...

Stratigraphy and Composition of a Jura-Cretaceous Volcanic Arc Apron, Punta Eugenia, Baja California Sur, Mexico

James J. Hickey

Pacific Section SEPM

...; younger rocks, by a more homogeneous, finer-grained depositional style and more q u a r t z o f e l d s p a t h i c composition. These rocks a r e i...

Intricate Seismic Time-Frequency Analysis in Kujung Patch Reef, Northeast Java Basin

Haryono Haryanto, Erik Yogapurana, Aditya Kusuma

Indonesian Petroleum Association

..., which are represented by the attenuation factor (Castagna et al., 2003). The measurement of Q factor, which refers to the inverse of attenuation...

OBN up/down-going wavefields separation in dual-tree complex wavelet domain

Zhang Libin, Wang Wei, Zou Zhen, Li Yifan, Chen Zhigang, Wang Kebin

International Meeting for Applied Geoscience and Energy (IMAGE)

... velocity model is hardly suited for complex seafloors and subsurface structures. F-K domain velocity filtering can be used for shear wave attenuation...

Detailed Oriented Seismic Processing Leads to More Accurate Elastic Attribute Results in the Delaware Basin

Marianne Rauch-Davies, Steve Smith, Alyona Bashkirtseva Hall

Unconventional Resources Technology Conference (URTEC)

..., which is some empirical relationship between elastic properties to be used in solving the inverse problem, Kemperl, M., et al, 2014. Assumption...

Traveltime tomography and efficient physics-informed Bayesian inversion

Tian Qiao, George Turkiyah, Gerard T. Schuster

International Meeting for Applied Geoscience and Energy (IMAGE)

... this physics-informed Bayesian inversion to VSP traveltime data. The tomogram is computed with the assistance of an analytic inverse, and the posterior...

Numerical experiments to characterize P-wave attenuation in partially saturated non-isothermal porous media

Naddia D. Arenas, Gabriela B. Savioli, Juan E. Santos, José M. Carcione

International Meeting for Applied Geoscience and Energy (IMAGE)

...) 300 K 4.5 ×106 kg/m3 1.5 ×10−2 s Figure 1 displays the inverse of the quality factor Q as a function of frequency for this medium, showing...

Algorithm Comparison with Cross Sections: Appendix A

David E. Hamilton, Thomas A. Jones

AAPG Special Volumes

.... The weights may be inverse-distance, but inverse-distance raised to a power (commonly 2) or other functions of distance are also used. It is rare...

Regularization strategies for Seis2Rock-based petrophysical inversion of prestack seismic data

Miguel Corrales, Juan Romero, Nick Luiken, Hussein Hoteit, Matteo Ravasi

International Meeting for Applied Geoscience and Energy (IMAGE)

... petrophysical parameters and the associated seismic amplitudes as well as the noise present in the data poses significant challenges to this inverse...

Fracture Characterization and Flow Profiling with Distributed Temperature Sensing

He Sun, Wei Yu, Kamy Sepehrnoori

Unconventional Resources Technology Conference (URTEC)

... of complex fracture networks. Subsequently, we developed ensemble smoother with multiple data assimilation (ESMDA) as the inverse model to match field...

GEO 2014, The 11th Middle East Geosciences Conference and Exhibition, March 10-12, 2014, Manama, Bahrain; - Abstracts, #90188 (2014).

Search and Discovery.com

Parsimonious Deconvolution

Jon F. Claerbout

Southeast Asia Petroleum Exploration Society (SEAPEX)

... the effect of filtering the innovations with some unknown filter bt. The output of the filter may or may not be combined with some additive noise ut before...

Poisson binomial-based random undersampling scheme for near-surface compressive sensing

Sayan Mukherjee, Yunyue Elita

International Meeting for Applied Geoscience and Energy (IMAGE)

...., 2003). Finally, the optimized solution b is converted to the desired y complete wavefield after performing the inverse transform: b = d F 1b...

ABSTRACT: Gas Flushing as a Reservoir Formation Mechanism in the Ordovician Reservoirs, Tazhong Field, Tarim Basin, China: Evidence from Fluid Inclusion, Fluorescence and Hydrogen Isotope Data; #90134 (2011)

Keyu Liu, Nai Zhang, Zhaoming Wang, Julien Bourdet, Shaobo Liu

Search and Discovery.com

... oils may have undergone varying degrees of gas flushing (Fig. 2, see Nomenclatures). Two distinct “inverse isotope fractionation” trends (i.e....

AAPG/Datapages Discovery Series No. 7: Multidimensional Basin Modeling, Chapter 2: Modeling Thermal Histories: How Important Are Thermal Conductivity Data?

Gallagher, K.

AAPG Special Volumes

..., and an inverse thermal history modeling approach is combined with Monte Carlo sampling to assess the thermal history uncertainties in a real-data...

Source location using physics-informed neural networks with hard constraints

Xinquan Huang, Tariq Alkhalifah

International Meeting for Applied Geoscience and Energy (IMAGE)

... allows for direct image extraction of the subsurface using inverse Fourier transform. Numerical tests on the Overthrust model demonstrate...

Accelerometer vs. Geophone Response: A Field Case History

Search and Discovery.com

... or ground displacement. Once we have acquired the geophone data, inverse filtering with 2 ∂ 2U 1 2λωω 0 − i (ω 0 − ω 2 ) = VG , kG ω ∂t 2 gives ground...

Abstract: Phase, one of the most Important but often Ignored Attribute of Seismic data: A Study on Real Seismic data Showing Critical Processing Steps to Preserve Phase Integrity, by Syed Firasat Shah, Naeem Sardar, Waqar Ahmad, and Mubashar Zahoor Bhatti; #90160 (2012)

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Modeling of Evolution of Transgressive Sediments on the Northern Adriatic Sea after the Last Glacial Maximum, by James P.M. Syvitski, Yu'suke Kubo, Eric W.H. Hutton, and Albert J. Kettner, #50036 (2006).

Search and Discovery.com

Metal attenuation processes in a landfill containing coal combustion waste: Implications for remediation

Christopher Barton, Lindy Paddock, Christopher Romanek, Sally Maharaj, John Seaman

Environmental Geosciences (DEG)

..., pH rose, and metals likely precipitated as discrete minerals in the substrate. Thus, a significant amount of filtering may have occurred in the basin...

Acoustic waveform inversion with the Lippmann-Schwinger equation constraint

Rahul Sarkar, Biondo Biondi

International Meeting for Applied Geoscience and Energy (IMAGE)

... penalty to higher frequencies. An alternating strategy to minimize Jµ ,λ λ In the above expression, F −1 denotes the inverse Fourier transform, and q(·, z...

Application of Frequency-Dependent Attributes for Gas Prospect Identification

Vittorio De Tomasi, Alfonso Junio Marini, Maurizio Ferla, Francesca de Finis

International Meeting for Applied Geoscience and Energy (IMAGE)

... of the Instantaneous Q attribute. A real case demonstrates the value of the method when integrated to the elastic DHI approach is shown. Introduction Gas...

Overpressuring mechanisms in the Yinggehai Basin, South China Sea

Xiaorong Luo, Weiliang Dong, Jihai Yang, Wan Yang

AAPG Bulletin

... the thermal cracking of oil to gas in reservoirs: AAPG Bulletin, v. 74, p. 1254–1261.Bethke, C. M., 1986, Inverse hydrologic analysis...

Seismic Data Acquisition and Processing in the Midway-Sunset Oil Field

C. R. Willingham, A. S. Wylie Jr., D. J. Underwood

Pacific Section of AAPG

... solution. Noise analysis Inverse earth filtering deconvolution Use of ray trace model to discriminate signal from noise Noise rejection...