Enhanced Monitoring of Geologic Carbon Sequestration Using 3-D Passive Microseismic Location Techniques

Delaine Reiter and William Rodi

Search and Discovery.com

... homogeneous up to 3-D velocity models Ray tracing with choice of two different algorithms: Example Regional 3D P Ray Path Finite-difference first...

Hierarchical elastic velocities reconstruction with Eikonal-equation-based characteristic reflection traveltime tomography

Jianhua Wang, Jianming Zhang, Liangguo Dong, Yandong Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

...-wave ray tomography (Stopin and Ehinger, 2001) and stereotomography (Alerini et al., 2007) are two types of elastic velocity model-building methods...

Abstract: Loma Vieja Field: Structural Geology and Related Velocity Fault Shadow in the Upper Wilcox (Fandango) in South Texas

James C. Meyerhoff and Rion Braddock

Houston Geological Society Bulletin

... bodies, that may have any effect on the ray paths and velocity of seismic energy. Figure 2. Depth structure map at the top of the Fandango series (top R...

Suppression of coherent and random noise using adaptive thresholding method in seismic-while-drilling

Yue Ma, Yujin Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

... as [𝑣 𝑚𝑖𝑛 , 𝑣 𝑚𝑎𝑥 ]. For a given velocity 𝑣 ∈ [𝑣 𝑚𝑖𝑛 , 𝑣 𝑚𝑎𝑥 ], and any zero-offset time 𝑡0 , a linear event in the time-offset window along the following...

Bedforms in Salt Deposits of the Dead Sea Brines

Iaakov Karcz, Israel Zak

Journal of Sedimentary Research (SEPM)

... of the fine halite lining. Under normal operating conditions flow velocity is about 30 cm/s and depth is about 1 m. The conveyed brine, with a densi y...

3D Seismic Depth Imaging As An Approach To Improve Pre

Search and Discovery.com

VSP: Lessons from Numerical Simulation

M. Suprajitno, S. A. Greenhalgh

Indonesian Petroleum Association

.... The upgoing waves (reflections) are characterised by a negative apparent velocity i.e. time increases with decreasing depth. Note how the upgoing primary...

Abstracts: Time-lapse Differential AVO: Reflection Coefficient at Fluid-fluid Boundary; #90173 (2015)

Jinfeng Ma

Search and Discovery.com

... is ray parameter,  is P-wave velocity,  is shear wave velocity and  is densit y.  is P-SV wave reflection angle. Rf(p) is the fluid-fluid reflection...

Microseismic sensor placement optimization for rapid leakage alarm of geologic carbon storage

Yuan Zi, Lei Fan, Xuqing Wu, Jiefu Chen, Zhu Han

International Meeting for Applied Geoscience and Energy (IMAGE)

... velocity model using geological strata and historical seismic surveys. The simulation and optimization of this case study are conducted using the ray...

Stratigraphic Change in Organic Composition Demonstrated by Oil Specific Gravity-Depth Correlation in Tertiary Green River Oil Shales, Colorado

John Ward Smith

AAPG Bulletin

... the stratigraphic zero point and to simplify the numbers: [EQUATION] From this coding, samples above A-groove have negative depth code values and those...

The Renaissance of Gravity, B.S. Anderson, M.E. Weber, J.E. Bain #40035

Search and Discovery.com

Use of Machine Learning to Estimate Sonic Data for Seismic Well Ties; #42471 (2019)

Thanapong Ketmalee

Search and Discovery.com

.... Attempts to generate synthetic sonic logs by Gardner equation, porosity correlation, or depth correlation did not provide the required accuracy. Consequently...

Strike Oriented, Swath Seismic and Its Potential Application to Exploration and Development in the Papuan Fold and Thrust Belt

William F. Robinson IV

Papua New Guinea (PNG) Petroleum Convention Proceedings

... velocity can be used to compute the ray length (also known as slant path depth). The orientation and length of the ray define the coordinates...

High Resolution Seismic and the Search for the Subtle Trap

James A. Wells

West Texas Geological Society

..., provides the explorationist with a very effective tool. If the high resolution seismic is further processed through velocity inversion, depth...

Bayesian joint inversion of controlled source electromagnetic and magnetotelluric data to infer presence of a freshwater aquifer offshore New Jersey

Daniel Blatter, Kerry Key, Anandaroop Ray, Chloe Gustaffson, Rob Evans

Petroleum Exploration Society of Australia (PESA)

...) standard, assuming a linear temperature gradient. The salinity values were binned in depth. In each plot, the well log salinity is plotted over...

Acoustic Log Measurements in the Lower Eagle Ford Formation in Brazos and Robertson Counties, Texas and Their Implications on Completion Design

Richard Reischman, Scott Brooks, Trevor Willms, Tony L. Albrecht, John J. Walsh, Edgar Arteaga

Unconventional Resources Technology Conference (URTEC)

... plots in the overlap section of the log data used for the TI inversion, Track 1: true vertical depth, Track 2: well deviation, Track 3: Gamma ray...

Toward Understanding Over-Pressure in a Basin with Burial and Uplift: Preliminary Results of a Study Measuring Under-Compaction with DT Logs

Paul E. Devine

Unconventional Resources Technology Conference (URTEC)

... travel time (DT) reflects normal compaction when sonic velocity (1/DT) increases with depth along a straight-line trend in a log-linear cross plot. (C...

A New Discovery in The Limau Graben Trend: Air Benakat Formation Shallow Gas

Wahyu Dwijo Santoso, Raddy Adiarsa, Yona Akbar, Dimas Pramuditho, M. Taslim

Indonesian Petroleum Association

... out using a deterministic method. Shale volume (V Shale or VSh for short) is calculated by linear equation using GR and SP log. Porosity was calculated...

Fluid Substitution as an AVO Calibration for Quantifying Uncertainty of Gas Presence in Late Miocene Binio Sandstone, Kampar Area, Central Sumatra Basin

Istiqlal Dalimunthe, Pamela Amelia Barus, Jhon Johannes Wood, Febrie Ekaninggarani

Indonesian Petroleum Association

... some seismic lines in Merbau Field, the bright spot was clearly seen. The Gamma Ray (GR) and Self Potential (SP) logs at the depth where bright spot...

Abstract: Complex Allocthonous Salt Structures and Their Impact on Subsalt Illumination, by M. L. Albertin, D. Sedgeley, D. Kikkert, J. O. Mooney, A. Calvert, E. McCarron, M. O'Brien, and R. Priem; #90937 (1998).

Search and Discovery.com

Seismic-Refraction Study of Continental Margin East of Florida

R. E. Sheridan , C. L. Drake , J. E. Nafe , J. Hennion

AAPG Bulletin

... variations. These variations are primarily dependent on the depth of burial. Nearly similar velocity-depth distributions are found for the Blake...

Least-squares migration utilizing high-resolution point spread functions generated from local angle domain illumination vectors

Matan Shustak, Orly Kletenik-Edelman, Ronit Levy, Zvi Koren

International Meeting for Applied Geoscience and Energy (IMAGE)

... on a unique (bottom-up ray-based) mapping of the recorded seismic data events from the acquisition system into the image grid points, where the imaged events...

A Review of Well Log Interpretation Techniques for Carbonate Reservoirs of South-East Asia

P. Cooke-Yarborough

Southeast Asia Petroleum Exploration Society (SEAPEX)

..., particularly natural gamma ray spectroscopy and formation testing by wireline methods. Much of this advance has been in the last five years, in large part...

High-resolution elastic full-waveform inversion using ocean-bottom nodes in Santos Basin, Brazil

Marilia Carneiro, Nathalia Ladeira Casado, Juliana Igarashi da Cruz, Pedro Barros, Chirag Parekh, Emmanuel Saragoussi, Bernardo Quijano

International Meeting for Applied Geoscience and Energy (IMAGE)

... lateral velocity variations emerging from layers of carbonates, complex series of evaporites, such as halite and anhydrites. This complexity intensifies...

The Contribution of Simple Seismic Modeling for Reef Distribution Mapping

Soetomo J.A., Bambang Santoso

Indonesian Petroleum Association

.... Material condition which built the reef (lithology, stratigraphy, porosity, interval velocity). Each of these structural criteria and geological...