Abstract: Rock Physics and AVO Mapping of Lithofacies and Pore Fluid Probabilities: Niger Delta; #90255 (2017)

Ibukun Olorunniwo, Sunday Olotu, Moses Olorunniwo, Adekunle Adepelumi

Search and Discovery.com

..." Oil Field, Niger Delta. Statistical crossplots of Gamma Ray (GR) log versus P-wave velocity, Relative Impedance (RI) versus GR log and histogram...

Understanding Field Performance of Hydraulically Fractured Wells: Comparison of Pressure Front Versus Tracer Front Propagation Using the Fast Marching Method (FMM) and Complex Analysis Method (CAM)

Kiran Nandlal, Chen Li, Ching-Hsien Liu, Venkata Bala Krishnateja Chavali, Michael J. King, Ruud Weijermars

Unconventional Resources Technology Conference (URTEC)

... in the corresponding velocity equation (Eq. (9)) and is determined by scaling the production by reservoir properties such as the formation volume factor...

Poststack Acoustic Impedance Characterization of a Mississippian Tripolitic Chert Reservoir, Osage County, Oklahoma

Benjamin L. Dowdell, Henry White, Kurt J. Marfurt

Oklahoma City Geological Society

..., is defined by the equation Zp = ρVp where, ρ, is the density of the layer and VP is the P-wave, or compressional wave, velocity of sound through...

Characteristics of Deep-marine Dolomite: DISCUSSION

Gerald M. Friedman

Journal of Sedimentary Research (SEPM)

... sediments (Friedman 1964, Fig. 17, p. 787), but an approximately linear relationship is evident betw en low-magnesian calcite concentration and 13C...

Geothermal Exploration from Deep-Well Data

William F. Tanner

GCAGS Transactions

... Density Log (a gamma-ray-scattering log). When this relationship is specified in a more rigorous way, sonic velocity, formation density, and BHT--all...

Integration of Core Data with Well Logs for Geomechanical Property Determination and Monitoring in the Argentinean Vaca Muerta Shale Formation

Maxwell Willis, Azra N. Tutuncu

Unconventional Resources Technology Conference (URTEC)

... of laboratory measured static Young's moduli to those calculated using equation (1) Young's moduli to those calculated using log-linear utilizing...

Probabilistic Reservoir Characterization via Seismic Elastic Inversion in East Andaman Basin; #40880 (2012)

Mahendra Kishore, Pritam Jha, Dino Ros, and Alfonso Iunio Marini

Search and Discovery.com

... Dix equation, constrained by the available interpreted seismic horizons, an interval velocity cube was computed from the seismic (stacking) velocity...

From Drilling Hazard to Economical Reserves: the Evolution of Formation Evaluation in a Shallow Gas Reservoir

Anang Karana, Andy Kristianto, Gilang Ariestya, Fabrice Cochet

Indonesian Petroleum Association

... the GR by picking shale and sand values and using a linear relationship. The effective porosity is computed from subsea vertical depth and shaliness...

Determining petrophysical and hydrogeological parameters from historical bore logs for the Leederville-Parmelia aquifer, northern Perth Basin, using regression methods

Olga Filiptsova, Sheryl Ryan

Petroleum Exploration Society of Australia (PESA)

... ray, resistivity and borehole magnetic resonance logs. The bores were sampled and the laboratory analysis of water salinity was used to verify...

The Limitations of Seismic Modelling of Geological Structures

B. L. N. Kennett

Petroleum Exploration Society of Australia (PESA)

... and not require extravagent resources if they are to be cost effective. avoided by working with velocity logs digitised in depth, if the synthesis...

ABSTRACT: Lithology and Fluid Identification Using Extended Impedance Method, by Utama, Widya; Saputro, Julian; #90155 (2012)

Search and Discovery.com

Multiple prediction and removal via zero offset SRME: a case study from the Tarim Basin

Yalin Li, Haijun Yang, Gengxin Peng, Duoming Zheng, Ruirui Zhao, Chuanwen Sun

International Meeting for Applied Geoscience and Energy (IMAGE)

... with offset and azimuth. The method is based on Surface-Related Multiple Elimination (SRME), which is derived from wave equation theory and is widely used...

Uncertainty Analysis in Well-Log and Petrophysical Interpretations

William R. Moore, Y. Zee Ma, Jim Urdea, Tom Bratton

AAPG Special Volumes

... results.Figure 3. Three different relationships between shale volume (VShale) and gamma ray (GR) (linear vs. nonlinear clay volume calculation).Measurements from...

Abstract: Anaerobic Monitoring of Polymer Viscosity Derived from Radioactive Tracer„Tool Well Logs and Detailed CFD Wellbore Model; #90237 (2015)

Juan Juri, A. M. Ruiz, M. Burbridge, M. Ichard, F. Peñalba, and S. P. Figliuolo

Search and Discovery.com

... exponent regardless the concentration. This work proposes to history matching the Carreau equation to reproduce the gamma ray peaks in the casing using...

Abstract: Kirchhoff Imaging with Adaptive Greens Functions for Compensation for Dispersion, Attenuation, and Velocity Imprecision; #90187 (2014)

Andrew V. Barrett

Search and Discovery.com

...Abstract: Kirchhoff Imaging with Adaptive Greens Functions for Compensation for Dispersion, Attenuation, and Velocity Imprecision; #90187 (2014...

Use of Logging in Uranium Prospecting

William K. Hawkins, Marvin Gearhart

Wyoming Geological Association

... sensing devices. Highly sensitive magnetometers and gamma ray detectors are being used in measuring surface deposits, but since most outcrops of uranium...

Diffusive Leakage of scCO2 in Shaly Caprocks: Effect of Geochemical Reactivity and Anisotropy

Felipe Cruz, Son Dang, Mark Curtis, Chandra Rai

Unconventional Resources Technology Conference (URTEC)

..., and velocity measurements. scCO2 treatment for up to 3 weeks at 150 °F and 3000 psi was conducted. The propagation of geochemical reactivity was monitored...

Petrophysical Characterization of a Clastic Reservoir in the Middle Magdalena Valley Basin in Colombia Using Artificial Neural Networks and Seismic Attributes, #20440 (2018).

Ursula Iturraran-Viveros and Andres Munoz-Garcia,

Search and Discovery.com

...: spontaneous potential (SP), resistivity and induction (ILD), sonic log of P-wave. Some of these logs are more recent such as the Gamma Ray (GR), dipolar...

P- and S-Wave Velocity Structures of the Sigsbee Abyssal Plain of the Gulf of Mexico from Ocean Bottom Seismometer Data

Sangmyung D. Kim, Seiichi Nagihara, Yosio Nakamura

GCAGS Transactions

... assumed a depth-invariant Poisson's ratio within each layer and performed trial-and-error, forward ray-trace modeling. We were able to identify mode...

Transformation of point-to-line source seismogram in a 2D geological model

Moosoo Won, Bing Zhou, Mohamed Jamal Zemerly, Mohammad Al-Khaleel, Mohamed Kamel Riahi

International Meeting for Applied Geoscience and Energy (IMAGE)

..., and 𝑉 𝑃 denotes the acoustic velocity. Equation (1) indicates that the amplitude of the 3D acoustic wave inversely diminishes with the offset (𝑟 −1 ). The 2D...

Application of Artificial Intelligence on Black Shale Lithofacies Prediction in Marcellus Shale, Appalachian Basin

Guochang Wang, Yiwen Ju, Timothy R. Carr, Chaofeng Li, Guojian Cheng

Unconventional Resources Technology Conference (URTEC)

... is non-linear and complex. The effectiveness of conventional mathematical methods is limited. Artificial intelligence (AI) classifiers, such as artificial...

Obtaining Low Frequencies for Full Waveform Inversion by Using Augmented Physics

Eldad Haber, Eran Treister, Elliot Holtham

Petroleum Exploration Society of Australia (PESA)

... data in the frequency or time domain are being fitted by changing the velocity of the media under investigation. The problem is nonlinear...

Carbonate Petrophysical Parameters Derived from 3d Images,#40393

Search and Discovery.com

P- and PS-Wave Vector Wavefields for Anisotropic Petrophysics

James Gaiser

Petroleum Exploration Society of Australia (PESA)

... on the assumption that symmetry plane orientation does not change with depth. Figure 1: Average velocity ratio analysis between the fast PS1 and slow PS2 reflection...

Imaging Beneath Complex Structure

K. Larner, B. Gibson, and R. Chambers

AAPG Special Volumes

... reflection data could be accomplished by depth migration before stacking. Simple ray-theoretical correction of the complex moveouts, however, can produce...