ABSTRACT: Pore pressure prediction from seismic data for well planning in Block 22 Final

M. Bacon, N. Mundel, J. Hearne, R. Lubbe and S. O’Connor

Geological Society of Trinidad & Tobago

... vertical stress, derived from well density data and water depth, Ph is hydrostatic pore pressure (normal gradient 0.44 psi/ft), Vnorm is the velocity...

An Integrated Approach to Horizontal Well Design and Planning in Widuri Field, Offshore Southeast Sumatra, Indonesia

D. C. Carter, W. Kortlang, M. Smelcer, J. C. Troncoso

Indonesian Petroleum Association

... and length of the exposed borehole pressure gradient away from the borehole (including skin effect) pressure gradient along the exposed borehole...

Hydrodynamics of the Hunton Group Anadarko Basin, Oklahoma and Texas Panhandle, Pt. 1

Paul E. Blubaugh Jr.

Oklahoma City Geological Society

..., a methodology was developed to screen out erroneous DST data. Pressure-depth (P-D) plots and a pressure gradient map were constructed using the DST data. Total...

Automated hyper-parameter optimization for deep learning framework to simulate boundary conditions for wave propagation

Harpreet Kaur, Sergey Fomel, Nam Pham

International Meeting for Applied Geoscience and Energy (IMAGE)

... between different HPO algorithms. EXAMPLES Gradient velocity model We first use a synthetic model with large velocity variations (Figure 3a). The model...

Abstracts: Seismic Wave Propagation and Imaging in Heterogenous Media; #90173 (2015)

Yijian Meng, Emmanuel Bongajum, and Bernd Milkereit

Search and Discovery.com

..., ON, Canada Summary The main objective of the study is to investigate the effect of scale parameters and dip on wave propagation in inhomogeneous...

Kilometer-scale upward migration of hydrocarbons in geopressured sediments by buoyancy-driven propagation of methane-filled fractures

Jeffrey A. Nunn, Peter Meulbroek

AAPG Bulletin

... a horizontal hydraulic head gradient between the well bore and the adjacent aquifer that induces fluid flow. The rate at which the water level...

Coupling Geomechanics and Petrophysical Measurements for Production Enhancement in Organic-Rich Shales

Azra N. Tutuncu, Daisuke Katsuki, Binh T. Bui, Anton Padin, Bryan McDowell

Unconventional Resources Technology Conference (URTEC)

... 60,000 ppm native salinity. The same effect happened when the fluid was changed to 280,000 ppm KCl. The velocity increases in shear wave velocity...

7.0 The Structural Significance of Seismic Velocity - A Progress Report

P. E. Gretener

AAPG Special Volumes

...7.0 The Structural Significance of Seismic Velocity - A Progress Report P. E. Gretener 1981 114 131 CN 4: Pore Pressure: Fundamentals, General...

Ceramic Proppant Transport and Placement in Heterogeneous Fracture Systems

Dhurgham A. Kadhim, Abdulmohsin Imqam, Shari Dunn-Norman

Unconventional Resources Technology Conference (URTEC)

...t horizontal velocity is less than fluid horizontal velocity, but it is higher than average fluid velocity for small particles where the effect of wal...

Abstract: AVAZ and VVAZ Practical Analysis to Estimate Anisotropic Properties; #90224 (2015)

Yexin Liu

Search and Discovery.com

... and the horizontal velocity for each lithology. Because of the lithology intrinsic anisotropy, eta is also known to vary with the quartz and clay contents...

Quantitative Models for the Influence of Salt-Associated Thermal Anomalies on Hydrocarbon Generation, Northern Gulf of Mexico Continental Margin

I. Lerche , A. Lowrie

GCAGS Transactions

... the maturation of sediments in response to a semi-infinite horizontal salt sheet, 1000 m thick, buried at a depth of 2000 m moving at a velocity 100 m/Ma...

Wellbore Stability Analysis and Pore Pressure Study in Badri Field Using a Limited Data, Gulf of Suez, Egypt.

Search and Discovery.com

Rock Mechanical Behavior at the Inch Scale in a Thinly Laminated Unconventional Formation

Smaine Zeroug, Bikash K. Sinha, Ting Lei, John Jeffers

Unconventional Resources Technology Conference (URTEC)

... of the minimum horizontal stress (since stress depends on the Cij values, which actually depend on velocity squared). We also note that the sonic averaging error...

Monitoring CO2 Injection at Weyburn Reservoir Using 3-D/3-C Seismic Datasets; #20290 (2015)

Le Gao, Igor Morozov

Search and Discovery.com

... of the survey area (Figure 2). Taking a ~5% Pwave velocity reduction as an estimate for the effect of CO2, this would mean that 20~30-m below the caprock...

Monitoring Imbibition and Estimating Residual Gas Saturation Using Low Field NMR, #41599 (2015).

Minghua Ding, Apostolos Kantzas

Search and Discovery.com

... with the corresponding capillary number analysis and the definitive criteria for mobilization of residual gas during horizontal displacements...

Abstracts: Challenges and Solutions in Locating and Interpreting Microseismic Events from Surveys in the Horn River Basin; #90173 (2015)

Ulrich Zimmer

Search and Discovery.com

... for anisotropy in the velocity model, at the very least a sensitivity study can show what its potential effect on the event location and the interpretation...

Oceanographic Currents and the Convexity of the Uppermost Continental Slope

Neil C. Mitchell, John M. Huthnance

Journal of Sedimentary Research (SEPM)

... for a small change in gradient (e.g., over 10°) compared with the flux when the flume was horizontal, so the direct current effect (term in u in Equation...

Use of the Regulated Directional Reception Method in Exploration for Reefs in Bashkiria

Yu. N. Voskresenskiy, Ya. I. Shul’ts

Petroleum Geology: A Digest of Russian Literature

... are drilled below the low velocity zone (average depth of 50 m); this prevents generation of surface waves which have an effect on the summation...

Fast Gauss-Newton full-wavefield migration

Siamak Abolhassani, Eric Verschuur

International Meeting for Applied Geoscience and Energy (IMAGE)

...+ are, respectively, upward and downward wavefield extrapolation operators, v is the acoustic velocity, ω denotes the angular frequency, kx is the −1 horizontal...

Enhancing full-waveform inversion with a deep-learning approximated inverse Hessian: A field data application

Mustafa Alfarhan, Matteo Ravasi, Fuqiang Chen, Tariq Alkhalifah

International Meeting for Applied Geoscience and Energy (IMAGE)

... Hessian operator. Such filters can be subsequently applied to the original migrated image to compensate for uneven illumination, undo the effect...

Seismic Models of a Shelf-margin Depositional Sequence: Upper San Andres Formation, Last Chance Canyon, New Mexico

Jan Stafleu , Mark D. Sonnenfeld

Journal of Sedimentary Research (SEPM)

... gradients. Solid lines indicate reflecting boundaries; dotted areas indicate cycles with a horizontal velocity gradient. Refer to Tables 1 and 2...

Compositional Tubing Hydraulics: An Improved Method for Calculating Pressure Gradients in Gas Wells

A. Mulia, A. L. Kebaili, V. C. Stone

Indonesian Petroleum Association

... pressure gradient is calculated by the following equation : where m is the mixture density given by: where Vs = superficial velocity...

Studies on Wind and Plant Interactions on French Atlantic Coastal Dunes

Catherine Bressolier, Yves-F. Thomas

Journal of Sedimentary Research (SEPM)

... covered dunes, the effect of vegetation, which is to raise the roughness factor, i.e., the height at which the wind velocity is canceled, must be taken...

Geomechanical Risk Investigation of Geological Sequestration of CO2 in Depleted Reservoirs

Avirup Chatterjee, Ahmadreza Younessi

Indonesian Petroleum Association

... reservoir pressure, Case 1 and fracture gradient, case 2). Thermal Effect on Fracture Pressure using the 3D Static Model The stress changes induced...

Hydrodynamic effects on low-dip stratigraphic traps

S. A. Stewart

AAPG Bulletin

... these are parallel, hydraulic gradients have little effect on stratigraphic trapping potential. The closer the hydraulic gradient azimuth...