Acoustic full-waveform inversion with acoustic and elastic data using a hybrid optimization method

Zeyu Zhao, Mrinal K. Sen, Mohamed Dolliazal, Paul Williamson

International Meeting for Applied Geoscience and Energy (IMAGE)

... data. Even though, the numerical tests illustrate some limitations of such implementation, the inversion results are very promising, the acoustic FWI...

Refining the Croft parallel grinder for acetate peel serial sectioning and virtual paleontology

Yuchen Zhang, Colin D. Sproat, Renbin Zhan, Weimin Zhang, Xiaocong Luan, Bing Huang

PALAIOS

.... Each of the aforementioned tools and methods of parallel serial grinding is useful in certain applications, but they have particular limitations...

Deep learning velocity model building using an ensemble regression approach

Stuart Farris, Guillaume Barnier, Robert Clapp

International Meeting for Applied Geoscience and Energy (IMAGE)

... measure, we train for 30 epochs (Wang et al., 2004). Combining velocity predictions with ensemble regression Model complexity limitations and modern...

Considering Far-Field Fracture Connectivity in Stimulation Treatment Designs in the Permian Basin

Brandon C. Klingensmith, Mohammad Hossaini, Steven Fleenor, Katherine Thomas

Unconventional Resources Technology Conference (URTEC)

... proppant transport and deposition deep into the fracture network indicating increased reservoir contact. X-ray micro computed tomography (micro-CT...

Abstract: Near-Surface Low-Molecular-Weight Hydrocarbon Gas Exploration: Strengths and Limitations, by M. S. Verseckes and G. Watters; #90994 (1993).

Search and Discovery.com

Chemostratigraphic Applications of Handheld X-Ray Fluorescence to Mudrock Plays: Methods, Pitfalls, Limitations, Aspirations, and Good Examples

Search and Discovery.com

A Quantitative Pore-Scale Investigation on the Paragenesis of Wilcox Tight Gas Sandstone

Ayaz Mehmani, Kitty Milliken, Masa Prodanovic

Unconventional Resources Technology Conference (URTEC)

... rock sample from another depth. Given the computational limitations in including micropores that are 100 to 1000 times smaller than macropores, only...

Multiphysics monitoring framework for CO2 sequestration in carbonate reservoirs

Taqi Alyousuf, Daniele Colombo, Ersan Turkoglu

International Meeting for Applied Geoscience and Energy (IMAGE)

... practices. However, like any monitoring technique, 4D EM has its limitations, including potential distortions from surface infrastructure and practical...

The Value of Microseismic Monitoring and Interpretation of Microseismic Event Hypocenters … Myths, Misconceptions, Realities, and Opportunities

Erkan Ay, Nigel Payne, Joel Le Calvez, Herve Denaclara

Unconventional Resources Technology Conference (URTEC)

... mapping, 4D seismic mapping, crosswell tomography high resolution imaging, surface electromagnetic mapping, surface seismo-electric mapping...

Uncertainty quantification of single and multi-parameter full-waveform inversion through a variational autoencoder

Abdelrahman Elmeliegy, Mrinal Sen, Jennifer Harding, Hongkyu Yoon

International Meeting for Applied Geoscience and Energy (IMAGE)

... Uncertainty quantification (UQ) plays a vital role in addressing the challenges and limitations encountered in full-waveform inversion (FWI). Most UQ methods...

Abstract: Near-surface S-wave Velocity from an up Hole Survey using Explosive Sources; #90187 (2014)

Saul E. Guevara, Gary F. Margrave, and William M. Agudelo

Search and Discovery.com

... picked (Figure 4a) and velocity models with depth were obtained for P and S-waves (Figure 4b). Picking the S-wave event was less obvious than the P...

Pricing Problems for Oil and Gas

M. Sadli

Indonesian Petroleum Association

... the appearance it is true that OPEC sets prices, although we have seen that sometimes, or more often, there is an ambiguity of what prices it has really...

Integrated geophysical and chemical study in the lower subbasin of Gadilam River, Tamilnadu, India

M. V. Prasanna, S. Chidambaram, S. Pethaperumal, K. Srinivasamoorthy, A. John Peter, P. Anandhan, M. Vasanthavigar

Environmental Geosciences (DEG)

... and resistivity of different horizontal or low-dipping subsurface layers, including the aquifer zone (Choudhury and Saha, 2004). However, some serious limitations...

A New Cement and Casing Evaluation Tool – The CET

M. H. Jennings

Indonesian Petroleum Association

... of channeling and good cement bonding without ambiguity. In addition the technique can provide extremely precise indications of casing internal diameter...

Using Rapid, Multidimensional, Graphic Correlation to Evaluate Chronostratigraphic Models for the Mid-Ordovician of the Mohawk Valley, New York

Peter M. Sadler, William G. Kemple

Pacific Section SEPM

... indicate better models. Alan Shaw optimized economy-of-fit by the method known as graphic correlation. It has serious practical limitations. Many find it too...

Mapping IOCG-related alteration using 3D gravity and magnetic inversion: an example from the Tennant Creek … Mount Isa region, northern Australia

James A. Goodwin, Roger G. Skirrow

Petroleum Exploration Society of Australia (PESA)

... included to account for the ambiguity in the inversion models, whereby the depth of bodies is difficult to determine due to the non-uniqueness of AEGC...

WFT Data and Pressure Profile Analysis: Applications, Complexities, and Challenges

J. V. C. Howes

Indonesian Petroleum Association

... with the study of systematic variations of formation pore pressure with depth. Formation pore pressures can be directly measured in the subsurface...

Collaboration, Integration, and Interpretation Through Immersive Visualization in Exploration and Development

Jun Zhu, Debnath Basu

Indonesian Petroleum Association

... interface, working becomes fun and more efficient. Distractions and limitations imposed from using a standard keyboard and mouse linked to a traditional...

Navigating the Complexities of EPC LUMP-Sum Projects: Understanding Causes and Determining Accountability

Heru Handoko

Indonesian Petroleum Association

... to avoid potential disputes. The project owner's organization may have personnel limitations for large projects and need to bring in additional parties...

Paleocurrent Analysis of Trough Cross Stratification

R. H. Dott, Jr.

Journal of Sedimentary Research (SEPM)

.... Circ. 14, 164 p. DOTT, R. H., JR., 1970, Limitations in paleocurrent analysis of trough cross-stratification: Am. Assoc. Petroleum Geologist Bull., v...

Kaolinite and Other Clay Minerals in Arctic Ocean Sediments

Dennis A. Darby

Journal of Sedimentary Research (SEPM)

... the kaolinite/chlorite ratio. This alleviates the ambiguity of separating the overlapping 3.57A and 3.53A peak for area determination. FIG. 1. Map...

Facies Mapping from Three-Dimensional Seismic Data: Potential and Guidelines from a Tertiary Sandstone-Shale Sequence Model, Powderhorn Field, Calhoun County, Texas

Hongliu Zeng , Milo M. Backus , Kenneth T. Barrow , Noel Tyler

AAPG Bulletin

... resistivity (mean normalized to 2 ohm m), (c) differential depth (the depth relative to 1524 m reference), (d) effective porosity, (e) P-wave velocity, (f...

Johan Sverdrup … Offshore Norway: The Story behind the Giant Sverdrup Discovery; #20177 (2012)

Arild Jørstad

Search and Discovery.com

... reservoir and weathered basement OWC varying between 1922 and 1935 m MSL Main reservoir uncertainties  Top reservoir depth reflecting velocity...

Securing the Australian CCS project rollout by improving aspects of the GHG storage legislation: a discussion paper

Geoffrey O’Brien, Simone de Morton, David Bason

Australian Energy Producers Journal

... proponents can develop unambiguous MMV programs. The ambiguity surrounding the definition of a plume is not limited to Australian legislation. Article 3...

Preservation of Shallow Plagioclase Dissolution Porosity During Burial: Implications for Porosity Prediction and Aluminum Mass Balance

Salman Bloch, Stephen G. Franks

AAPG Bulletin

..., California. The proportion of plagioclase intragranular porosity and plagioclase moldic porosity is depth dependent. For purposes of this study, pores...