Characterization of a Shallow Steamed Oil Reservoir Using Crosswell Seismology

Bjorn N. P. Paulsson, John W. Fairborn

Indonesian Petroleum Association

... velocity Miocene sediments is at a depth of about 1000 feet (Figure 8). It is clear that these crosswell data contain a great deal more information than...

Pore-Pressure Prediction in the Permian Basin Using Seismic Prestack Inversion

Colin Sayers, Lennert den Boer

Unconventional Resources Technology Conference (URTEC)

... the compressional velocity of normally pressured sediments in equation (4) varies with vertical depth z [ft] according to: Vnormal [ft/s] = 106...

Abstract: Wavepath Imaging for Passive Data; #91204 (2023)

Yicheng Zhou, Sherif Hanafy

Search and Discovery.com

... method, here the seismic energy is smeared along the whole image volume, which may increase the level of artefacts, and (3) using wave-equation-based...

Eikonal equation-based adjoint-state characteristic reflection traveltime tomography: Method and application in real dataset

Jianming Zhang, Liangguo Dong, Jianhua Wang, Yilin Wang, Chao Huang

International Meeting for Applied Geoscience and Energy (IMAGE)

... by the fast kinematic imaging method based on the Eikonal equation. The alternate updates of reflector depth and velocity in ASCRT are more adaptable...

SONIC LOG APPLICATIONS - EASTERN VENEZUELA

W. F. Clarke

Asociación Venezolana de Geología, Minería y Petróleo (AVGMP)

... in Incremental-time. Thus, below a depth of 8000 feet porosity should be directly proportional to velocity. Another approach is the empiric equation...

The Wave Equation Applied to Migration

D. Loewenthal, L. Lu, R. Roberson, J. Sherwood

Southeast Asia Petroleum Exploration Society (SEAPEX)

... of the relative inaccuracy of our velocity information, we will content ourselves with deriving a function B(x, τ), where the depth variable z has been replaced...

Frequency-Domain Waveform Tomography in the Foothills: Velocity Model Estimation with Synthetic Long-Offset Data

Search and Discovery.com

.... Depth imaging is often necessary, and an accurate estimation of the macro-velocity model is essential. Waveform Tomography (i.e., traveltime...

Exact kinematic behavior of the P-SV converted wave in a vertical transversely isotropic medium

Guillaume Cambois

International Meeting for Applied Geoscience and Energy (IMAGE)

... (θp) is 30o and the converted qSv phase angle (θps) is ca. 15o according to Snell’s law (Equation 21). The ray trajectories follow the group angles ϕp...

Optimization of Gas Lift Allocation in Multi-Well System, a Simple Numerical Approach

Ulfia Rahma Fitra, Silvya Dewi Rahmawati, Pudjo Sukarno, Edy Soewono

Indonesian Petroleum Association

...t equation presents the amount of pressure loss at each depth along the production tubing. In this study we use the pressure loss correlatio...

A Reply to Porter's Review

John Morton

Petroleum Exploration Society of Australia (PESA)

... makes the observation that my equation is non-linear, and asserts that this results in porosities below 9 to 10 per cent being underestimated. In fact...

Utilizing Geochemical, Petrophysical, and Geomechanical Analysis to Optimize Stimulation Design in Pimienta Formation

Douglas J. Betancourt, Claudio Rabe, Omer Iqbal, Jesus P. Salazar, Besmir Hoxha

Unconventional Resources Technology Conference (URTEC)

... a suitable hydraulic fracturing design. The reservoir characterization included lithofacies and pore classification using X-ray Diffraction, Scanning...

Improved TOC and Lithology Prediction for Wolfcamp Shales Using AVO Attribute Analysis

Jaewook Lee, Un Young Lim, David Lumley

Unconventional Resources Technology Conference (URTEC)

... data by using the exact Zoeppritz AVO equation. First, we conduct statistical analyses of three Wolfcamp well logs to derive relationships between...

ABSTRACT: Confirming Depth Models using Differential Wide Aperture Seismic; #90061 (2006)

James H. Leven

Search and Discovery.com

...-stack depth migration or for precise depth conversion, particularly for field definition. Normal moveout (NMO) “velocity” analysis is a relatively...

ABSTRACT: First Arrival Tomography Using Depth-Varying Velocity Gradients; #90113 (2010)

Hui Liu and Hua-Wei Zhou

Search and Discovery.com

... and depth-varying velocity gradient of each model layer. An efficient ray tracing is developed for the model with depth-varying velocity gradients. For areas...

Abstract: Characterization of Spontaneous Water Imbibition into Gas-Saturated Rocks, by R. Horne; #90911 (2000)

Search and Discovery.com

Chapter 8: Petrophysical Characteristics of the Ivie Creek Case-Study Area - Geological and Petrophysical Characterization of the Ferron Sandstone for 3-D Simulation of a Fluvial-Deltaic Reservoir (MP-02-6)

R.D. Jarrard, M.A. Chan, C.B. Forster, S.H. Snelgrove

Utah Geological Survey

..., and (2) gradual porosity increase and velocity drop with decreasing depth (increasing exhumation). The wide ranges for porosity and velocity...

Least-squares reverse time migration of seismic source coding based on Shearlet transform

Yingkaer Nabi, Xiangbo Gong, Zhuo Xu

International Meeting for Applied Geoscience and Energy (IMAGE)

... of the subsurface medium. Migration methods commonly used in industrial processes include Kirchhoff ray migration, one-way wave fluctuation equation...

Pressure prediction using converted shear waves from OBN data: A rock physics approach

Prajnajyoti Mazumdar, Kevin Searles, Bjorn Olofsson, James Gaiser, Terence Krishnasami

International Meeting for Applied Geoscience and Energy (IMAGE)

..., and composition (vcl) affect seismic velocity and hence a need for estimation of vcl and C44 (or Vs) as a function of depth at seismic scale. Our method...

Abstract: Deterministic Marine Deghosting: Tutorial and Recent Advances; #90224 (2015)

Mike J. Perz and Hassan Masoomzadeh

Search and Discovery.com

... propagating at an angle  from the vertical is given by 2𝑑 cos 𝜃 𝑡𝑑 = , 𝑣 where d is water depth and v is water velocity. Such angle-dependence...

Combining Sonic Velocity and Characterization of Pore Architecture to Develop a Proxy for Reservoir Permeability in Unconventional Carbonates: An Example from the Mid-Continent Mississippian Limestone

Beth Vanden Berg, G. Michael Grammer

Unconventional Resources Technology Conference (URTEC)

... velocityporosity relationship is defined by the Woods equation. Although the relationship between total porosity and velocity response provides some...

How Organic Carbon Content and Thermal Maturity Affect Acoustic Properties (and Ultimately Seismic Response) in a Shale Gas/Oil Formation: Woodford Shale, Permian Basin

Nicholas B. Harris, Al Moghadam, Tian Dong

Unconventional Resources Technology Conference (URTEC)

...: 𝟐𝟐 𝝁𝝁 = 𝑽𝑽 𝑺𝑺 Results A simple linear regression has been used to estimate TOC data from gamma logs, based on a fit to core TOC, following core depth shifts...

Design of Land 3-D Surveys, by Mike Galbraith, #40139 (2004).

Search and Discovery.com

Application of Anisotropic 3D Reverse Time Migration to Complex North Sea Imaging; #41573 (2015)

M. A. Hall, I. F. Jones, M. C. Goodwin, I. D. Berranger, H. Zhou, P. A. Farmer

Search and Discovery.com

... depth migration is usually performed using a Kirchhoff scheme for modest structural problems with steep dips. For structures where multi-valued ray-paths...

A Multilog-Evaluation Package Using Linear Programming Techniques to Evaluate Porosity and Lithology in Hydrocarbon Bearing Complex Lithologies

P. J. D. van Ditzhuijzen, D. Masson

Southeast Asia Petroleum Exploration Society (SEAPEX)

... the material balance equation as shown in equation 2 above. If for instance the gamma ray log is used as a shale indicator a fifth equation can be added...

The Geophysicists' Bane: Multiple Suppression on the North West Shelf

C. R. T. Ramsden, M. R. Hobson, R. Cooper

Petroleum Exploration Society of Australia (PESA)

... lines of equal slowness for all tau to produce each p trace in the transform. For example, a linear event in the space-time (x,t) domain with velocity...