Abstract: Seismic Imaging of Imbricate Structures in Mountainous Area: Case Studies; #90211 (2015)

Nanxun Dai, Oz Yilmaz, Weizhong Wang, and Jie Zhang

Search and Discovery.com

... and the substratum model is estimated by half-space velocity analysis. (4) The subsurface image is obtained by wave equation based prestack depth...

Adaptive Eigenstructure Classification and Stochastic Decorrelation Filters for Coherent Interference Suppression in the Acoustic Zoom Method, #41503 (2014).

J. Guigne, S. Azad, C. Clements, A. Gogacz, W. Hunt, A. Pant, J. Stacey

Search and Discovery.com

...). The stochastic spectral decorrelation (SSD) algorithm aims to whiten both the frequency and wave number distributions of the trace data over...

Converted Shear-Wave Seismic Fracture Characterization Analysis at Pinedale Field, Wyoming

Search and Discovery.com

Converted Shear-Wave Seismic Fracture Characterization Analysis at Pinedale Field, Wyoming -Thumbnails

Search and Discovery.com

Modeling of Erosion and Deposition by Turbidity Currents Generated at River Mouths

Thierry Mulder , James P.M. Syvitski , Kenneth I. Skene

Journal of Sedimentary Research (SEPM)

... to hyperpycnal plumes. The model extends the Chezy equation to explicitly include water entrainment, sediment erosion and deposition, and internal grain...

Research of high-precision depth interpretation method for low-amplitude offshore reservoir and its application in C oilfield, Bohai Bay Basin

Wenbin Li, Jianli Wang, Zhenglong Zhang, Heng Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

... of t is: ∆t = ∫ [ ( , , ) − ( , , )] = ∙ ∆ (3) In equation (3), is a matrix of ray paths related to , which represents the slowness updating vector. ∆ is the difference between actual...

Probabilistic centroid moment tensor inversions using geologically constrained priors: Application to induced earthquakes in the Groningen gas field, the Netherlands

La Ode Marzujriban Masfara, Cornelis Weemstra, Thomas Cullison

International Meeting for Applied Geoscience and Energy (IMAGE)

... distributed prior probability, equation 1 can be written as ρ(m|d) ∝ exp − − 1 u (m) − uobs C−1 u (m) − uobs d 2 1 m − m0 C−1 m − m0 m 2 (3) , where...

Semi-inverse relationship between critical angle and reflectivity coefficient, and its implication in seismic survey design, processing, and interpretation

Chen Bao

International Meeting for Applied Geoscience and Energy (IMAGE)

..., we can approximate the equation above to: 𝑑(𝐴𝐼) 1 1 𝐴𝐼 + 𝑅+ ≈ = 𝑑(𝑙𝑛𝐴𝐼) = [ln − ] 2𝐴𝐼 2 2 𝐴𝐼 (2) Note this is a common and quite...

Recursive Inversion and Attribute Analysis of 3D Seismic Data Over a Four-Way Dip Structure, Gulf of Thailand

S. Thanatit, S. Ronghe

Indonesian Petroleum Association

... Properties of Sedimentary Rocks. Geophysics, v. 41, p. 895-921. Han, D., Nur, A., and Morgan, D., 1986, Effects of Porosity and Clay Content on Wave...

Hydrocarbon Production, Surface Subsidence, and Land Loss in Louisiana

Byron Miller

GCAGS Transactions

..., with Equation 2: An estimated value for formation bulk density can be obtained from wireline density well logs, and formation compressional wave...

The effect of land reclamation on water clarity in Tanjung Tokong using remote sensing

Nurulamani Rosman, Aisah Taufik, Ismail Ahmad Abir

Geological Society of Malaysia (GSM)

... in a correlation equation. Based on the equation, water clarity is then estimated for previous Landsat images of Penang. Finally, Secchi disk depth...

Technical Article: Finding Subtle Traps with Seismic: Interpretative Criteria Clarified

A. Easton Wren

Petroleum Exploration Society of Australia (PESA)

... wave) at the boundary which is, in turn, dependent on the contrast in Poisson's ratio (the measure of the rock's incompressibility) above and below...

Chapter 4: Synthetic Seismograms and Their Uses

Tom Wittick

North Texas Geological Society

... investigation and the frequency of the seismic pulse. This phenomenon is diagramed in figure 4-5. Figure 4-5.   Due to its wave nature, sound acts similarly...

Synthetic Seismograms and Their Uses

Abilene Geological Society

... horizon under investigation and the frequency of the seismic pulse. This phenomenon is diagramed in figure 4-5. Figure 5. Fresnel Zone Due to its wave...

Fracture characterization at multiple scales using borehole images, sonic logs, and walkaround vertical seismic profile

Romain Prioul, Jeroen Jocker

AAPG Bulletin

.... Assuming a plane-wave solution to the dynamic equation, the resulting compliance tensor (equation 1) is used to derive the Christoffel equation, which...

How to Make Velocity Corrections

John W. Daly

AAPG Bulletin

... the instruments measure only the time it takes a compressional wave to propagate from a dynamite explosion down to a reflector and then to return...

Application of passive seismic and AEM to 3D paleochannel imaging: Capricorn Orogen

Sara Jakica, Lucy Brisbout

Petroleum Exploration Society of Australia (PESA)

... the frequencies of peaks. Shear wave velocities were estimated using the depth to basement from the drill core (Figure 2b) and the equation relating...

Super-virtual interferometry for noise elimination on vertical seismic profiling (VSP)

Yicheng Zhou, Yang Cui, Sherif Hanafy

International Meeting for Applied Geoscience and Energy (IMAGE)

...-VSP), where a fiber cable acts as a line of receivers. The presence of this incoherent noise poses challenges in accurately picking direct-wave...

A New Type of Reservoir Rock in Volcaniclastic Sequences (1)

LEV VERNIK

AAPG Bulletin

... and permeability, accompanied by dramatic changes in wave propagation velocity and other physical properties, in laumontite tuffs occurs in the oil fields...

Gas Hydrate Geohazard Assessment in the Northern Gulf of Mexico Using a Vertical Line Array, by Erika Géresi, N.R. Chapman, T.M. McGee, and J.R. Woolsey, Article #40159 (2005)

Search and Discovery.com

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)

... of scCO2 in a brine-saturated porous media is described by Equation 1: D!"#$! :&! $,()) = *"#$%! :'! % ,+,-. / (1) where D!"#$! :&! $,+,-. is the bulk...

Research on facies-controlled inversion method of ultradeep carbonate fracture-cavity reservoir based on multiattribute constraints

Yongjian Zeng, Tianwei Du, Pengfei Li, Bo Liu, Fengying Yang

International Meeting for Applied Geoscience and Energy (IMAGE)

... in three-dimensional space, as shown in equation (1):  u  x, y, z     x    g1  u  x, y, z      g  u  x , y , z       g2  y...

Integrated seismic hazard analysis of southwest Penang Island through horizontal-to-vertical spectral ratio and probabilistic seismic hazard assessment

Siti Noor Shafiqah Badrolhisham, Abdul Halim Abdul Latiff

Geological Society of Malaysia (GSM)

... are the product of weathering of granite itself. SOIL PROFILE CLASSIFICATIONS Shear-wave velocity (Vs) is often applied in the investigation of soil...

Estimate near-surface velocity with reversals using deep learning and full-waveform inversion

Yong Ma, Xu Ji, Weiguang He, Tong Fei

International Meeting for Applied Geoscience and Energy (IMAGE)

.../10.1038/nature14539. Luo, Y., and G. T. Schuster, 1991, Wave-equation traveltime inversion: Geophysics, 56, 645–653, doi: https://doi.org/10.1190/1.1443081...

High Frequency Full Waveform Inversion as an Interpretation Solution

Laurence Letki, Matt Lamont, Troy Thompson

Australian Petroleum Production & Exploration Association (APPEA) Journal

... to develop better tools and to use better physics to build models of the subsurface. Wave-equation based techniques, such as full waveform inversion (FWI...