Abstract: Shallow VSP Survey using a Small Vibrator Source; #90171 (2013)

Joe Wong, Soo K. Miong, Robert R. Stewart, Eric V. Gallant, and Kevin W. Hall

Search and Discovery.com

... velocity of the homogeneous single-layered medium, normal incidence time of reflection, and depth of the receiver respectively. This equation is valid...

Abstract: Near-surface Issues in TTI Wave Equation Migration from Topography; #90171 (2013)

Chuck Ursenbach, Richard A. Bale, and Samuel H. Gray

Search and Discovery.com

... [email protected] Summary Wave-equation migration, which uses more accurate wavefield extrapolation techniques than ray-based Kirchhoff...

Discrete Fracture Network Generation Using Microseismic Data from a Single Monitoring Well

Xin Yu, Jim Rutledge, Scott Leaney, Chris Chapman

Unconventional Resources Technology Conference (URTEC)

...t is estimated by projecting data back from the observation at the receiver. The subscript of ܷ indicates the phase of the ray as P, Sh and Sv. Equation 3 de...

Abstract: To TTI or not to TTI? Semi-Automated 3D Tomographic Velocity Analysis in the Canadian Foothills: A Case History; #90211 (2015)

Sylvestre Charles, David Mitchell, Rob Holt, Jiwu Lin, and John Mathewson

Search and Discovery.com

... study, we evaluate how velocity model building strategy affects imaging in the Canadian Foothills Thrust Belt. Two depth imaging processing techniques...

The Geophysical Aspects of Abnormal Fluid Pressures

Edward B. Reynolds, John E. May, Alf Klaveness

Houston Geological Society

... are being processed to generate plots of interval velocity versus depth which grossly approximate velocity surveys or integrated acoustic logs. Lower...

4-D Seismic: A Powerful New Technology for Monitoring Steam Movements in Duri Field-Central Sumatra

S. D. Jenkins, M. F. Bee, J. H. Lyle, E. Murhantoro

Indonesian Petroleum Association

... shot-geophone offsets in the 4-D data relative to the size and depth of the steam chest, a ray based velocity analysis is required to account for non...

Estimating Thermal Conductivity in Sedimentary Basins Using Lithologic Data and Geophysical Well Logs (1)

FREDERIC BRIGAUD , DAVID S. CHAPMAN , and SYLVIE LE DOUARAN

AAPG Bulletin

... velocity: Geologie en Mijnbouw, v. 59, p. 215-224. Kappelmeyer, O., and R. Haenel, 1974, Geothermics with special reference to application...

Brittleness modeling selects optimum stimulation zone in shaly source rocks in the Whangai Formation, New Zealand

Claudio Rabe, Raul Correa Rechden Filho, Jesus Pastor Salazar, Fernando Della Pasqua, Giovanni Chaves Stael, and Luiz Antonio Pierantoni Gamboa

AAPG Bulletin

...’s ratio (equation 12) and Edyn (equation 13) developed for homogeneous isotropic linear elastic materials (Zoback, 2007).The Edyn (MPa) can...

Mitigation of the 3D Cross-Line Acquisition Footprint Using Separated Wavefield Imaging of Dual-Sensor Streamer Seismic Data … A First Example from Malaysia

Mazin Farouki, Andrew Long, Richard Jones, Yee Ah Chim, Magdalene Tang, Hui LeGleut, Shaoping Lu, Dan Whitmore, Adam Betteridge

Indonesian Petroleum Association

... al., 2007). Whitmore et al. (2010) published an approach whereby one-way wave equation pre-stack depth migration (PSDM) is reconfigured to use up...

Estimating Stimulation-Zone Anisotropy Effects During Microseismic Monitoring

Martin Karrenbach, Steve Cole, Victor Yartsev

Unconventional Resources Technology Conference (URTEC)

... shear wave velocity. The values are plotted as a percentage and extend over a considerable area in depth. The geophone array extent in depth...

Revealing the discontinuities by 3D prestack diffraction separation and imaging

Chuangjian Li, Suping Peng, Xiaoqin Cui, Peng Lin

International Meeting for Applied Geoscience and Energy (IMAGE)

... the local slope throng the normal moveout velocity and ray parameter, which can enhance the stability and accuracy of local slopes. In this way...

Estimating Smectite Content from Seismic Data

Roman Beloborodov, Marina Pervukhina, Valeriya Shulakova, Dimitri Chagalov, Matthew Josh, Michael B. Clennell, Gavin Ward, Matthew Waugh, Juerg Hauser

Australian Petroleum Production & Exploration Association (APPEA) Journal

... seismic data. XRD = X-ray diffraction. AVO = amplitude variation with offset. VP = compressional velocity. Vs = shear velocity. GLM = generalised...

Yesterday, Today, and Tomorrow in Seismic Exploration

Emil J. Mateker, Jr.

GCAGS Transactions

... the simple equation: geometric configuration plus lithologic distribution equals geologic section. Cook, E. E., and M. T. Taner, 1969, Velocity...

Estimation of TOC and Brittleness Volumes and Correlation with Reservoir Production

Sumit Verma, Tao Zhao, Kurt J. Marfurt, Deepak Devegowda, Dario Grana

Unconventional Resources Technology Conference (URTEC)

... interpretation can lead to inaccurate estimates of TOC. Using non-linear regression with Passey’s TOC, normalized stratigraphic height and acquired wireline...

Quantitative Petrophysical AVO Error Analysis in a Layered Model

Search and Discovery.com

... from Zoeppritz equation with angle from RMS velocity. Shuey Vrms angle represents reflectivities calculated from Shuey’s approximation (1985...

Petrophysical characterization at the extremes and across three continents: contrasting examples from Utica, Marcellus, Longmaxi and Roseneath-Murteree resource shales

M. Ben Clennell, Matthew Josh, Lionel Esteban, Claudio Delle Piane, David Dewhurst, Vladimir Luzin

Unconventional Resources Technology Conference (URTEC)

... shale via the non-linear equation: 1/𝑅𝑅_𝑡𝑡 = 𝐶𝐶〖 ∗ 𝑁𝑁𝑁𝑁𝑁𝑁𝑁𝑁〗^𝑑𝑑. We propose that hydrated cation conductivity determines the pre-factor C...

Acoustic Properties of Sediment on the Southern Tonga Platform as Determined from Seismic Sonobuoy Studies

Jonathan R. Childs

Circum Pacific Council Publications

...) is the vertical rootmean-square acoustic velocity to-the boun­ dary. This equation is linear in x and t . If we measure the travel times along a reflection...

Abstracts: Determining Microseismic Event Locations by Semblance-weighted Stacking; #90173 (2015)

David W. Eaton, Jubran Akram, Andy St-Onge, and Farshid Forouhideh

Search and Discovery.com

... using an efficient ray-bending algorithm that is robust in the presence of large velocity gradients and strong velocity contrasts at layer boundaries...

Automated velocity modeling with domain transformations

Kevin Gullikson, Arnab Dhara, Ram Tuvi, Mrinal K. Sen

International Meeting for Applied Geoscience and Energy (IMAGE)

... time to depth domain by integrating the predicted velocity model. This pipeline is capable of predicting a velocity model suitable for input to FWI...

Experiment on Estimating Thermal Conductivity of Sedimentary Rocks from Oil Well Logging: GEOLOGIC NOTE

Victor Vacquier , Yves Mathieu , Eric Legendre , E. Blondin

AAPG Bulletin

... and correlated with neutron porosity index, sonic interval travel time, bulk density, and gamma-ray logs. To obtain reasonable predictions of conductivity...

Estimating Seismic Anisotropy Parameters from Rock Properties in Wolfcamp Shales, Midland Basin

Jaewook Lee, David Lumley

Unconventional Resources Technology Conference (URTEC)

..., a variety of nonlinear regression functions practically fit the data better than the linear equation, such as logarithmic, exponential...

Improving the Convergence of Shot-Profile Migration by Plane Wave Synthesis

Chad M. Hogan

Search and Discovery.com

... Prestack depth migration is expensive for complex regions with strong lateral velocity variations. In these regions, it is desirable to use a wave...

Improving the Convergence of Shot-Profile Migration by Plane Wave Synthesis

Chad M. Hogan

Search and Discovery.com

... Prestack depth migration is expensive for complex regions with strong lateral velocity variations. In these regions, it is desirable to use a wave...

Abstract: Quantifying Total Organic Carbon (TOC) from Well Logs Using Support Vector Regression; #90187 (2014)

Yexin Liu, Zhuoheng Chen, Kezhen Hu, and Chris Liu

Search and Discovery.com

... used in shale gas reservoir evaluation. In this study we propose an improved ΔlogR equation to calculate apparent logs (density, sonic, gamma ray...

Large-Scale Pore Pressure Prediction After Pre-Stack Depth Migration in the Caspian Sea (Geophysics Paper 24)

Norbert van de Coevering, Hazim Hameed Al-Dabagh, Liau Min Hoe, Tony Jolly

Geological Society of Malaysia (GSM)

... with a standard Dix conversion. To be consistent with the depth conversion decided upon during the PSDM post-processing phase, this new final interval velocity...