Enhancing Oil Recovery in Heterogeneous Reservoirs with CO2 Flooding: A Simulation Study

Hossam Ebaid, Moamen Gasser, Taha Yehia, Esuru R. Okoroafor

Carbon Capture, Utilization and Storage (CCUS)

... the effect of anisotropy on CO2 recovery, Model 2 to Model 4 were homogeneous but had different kv/kh ratios. Only the horizontal permeability was changing...

Porosity Reduction in Sandstone by Quartz Overgrowth: REPLY

Frederic Leder, Won C. Park

AAPG Bulletin

... out that the gravitational effect is not missing from our system of equations. Beginning with our equation 28 (Leder and Park, 1986) and thereafter...

Fines Migration during Coal Bed Methane Production: Mathematical and Laboratory Modelling, Field Cases

Abolfazl Hashemi, Bryant Dang-Le, Cuong Nguyen, Grace Loi, Nastaran Khazali

Australian Petroleum Production & Exploration Association (APPEA) Journal

... velocity required to A. Hashemi et al. The APPEA Journal (a) (b) (c) (d) (e) (f ) Fig. 1. SEM images of (a) detrital coal fines...

Impacts of Sand and Gravel Mining on Physical Habitat of the Colorado River and Tributaries, Central Texas

Saunders, Geoffrey P.

GCAGS Transactions

... may be degraded by changes in flow velocity, channel depth and substrate material. Excessive turbidity caused by suspended sediment can reduce light...

CMP domain near-surface velocity model building based on deep learning

Yihao Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

...CMP domain near-surface velocity model building based on deep learning Yihao Wang CMP domain near-surface velocity model building based on deep...

SoundBal: Two-Phase Production Logging by Integrating Mass Balance and DAS-Based Speed of Sound

Peyman Moradi

Unconventional Resources Technology Conference (URTEC)

.... By relying on mass balance calculations, the method inherently avoids unphysical, non-monotonic flow velocity profiles often produced by conventional DAS...

Comparing Overpressure in the West and East Natuna Basins

Julianta Parlindungan Panjaitan, Bobby Siswanto, Rizki Perdana Putra, Heru Putranto, Rita Achdiat

Indonesian Petroleum Association

... to the normal hydrostatic pressure gradient. Abnormal pore pressure generally refers to overpressure where the pore pressure is greater than the normal...

Prestack Depth Imaging Within the Makassar Straits, Eastern Kalimantan, Indonesia

Chris Willacy, Suryadi Oemar, A. Edy Hermantoro, Paul Gilleran

Indonesian Petroleum Association

.... Thrusting stacks rocks of higher seismic velocity over lower velocity material. Such a velocity contrast results in strong wavefront attenuation...

Constraints on Eolian Grain Flow Dynamics Through Laboratory Experiments on Sand Slopes

Richard R. McDonald , Robert S. Anderson

Journal of Sedimentary Research (SEPM)

..., and then steadily decreased to  10 cm/s towards the tail of the flow. The longitudinal velocity gradients created considerable longitudinal strain rates...

Thermal Evolution of Coastal California with Application to Hydrocarbon Maturation

Henry P. Heasler, Ronald C. Surdam

AAPG Bulletin

... production, V is the velocity of the convecting material, and x and y subscripts are horizontal and vertical directions, respectively. This equation...

A New Method for Predicting Pore Pressure in Shale Gas Reservoir

Search and Discovery.com

A novel approach to investigate the deposition of (bio)chemical sediments: The sedimentation velocity of cyanobacteria–ferrihydrite aggregates

Yuhao Li, Bruce R. Sutherland, Murray K. Gingras, George W. Owttrim, Kurt O. Konhauser

Journal of Sedimentary Research (SEPM)

...A novel approach to investigate the deposition of (bio)chemical sediments: The sedimentation velocity of cyanobacteria–ferrihydrite aggregates Yuhao...

Relationship Between Grain Size Parameter Distribution and Current Patterns in the Gironde Estuary (France)

George P. Allen

Journal of Sedimentary Research (SEPM)

... direction of the bottom sediments as Meade (1969) pointed out. Shear velocity. A more exact parameter for representing the effect of a fluid flow acting...

Basic Seismic Processing: Part 7. Geophysical Methods

Peter M. Duncan

AAPG Special Volumes

... of the effect of gain recovery is given in Figure 3. Deconvolution: The removal of the frequency-dependent response of the source and the instrument...

Presalt time-lapse seismic monitoring with joint 4D FWI

Filipe Rudrigues, Gabriel Brando, Danilo Albuquerque, Danilo Froes, Benjamin Huard, Luis Cypriano, Roberto Pereira, Adel Khalil

International Meeting for Applied Geoscience and Energy (IMAGE)

..., Figure 1d shows the velocity 4D difference obtained with the parallel strategy (Plessix et al., 2010), in which both vintages are inverted...

A New Approach to Shale Compaction and Stratigraphic Restoration, Beaufort-Mackenzie Basin and Mackenzie Corridor, Northern Canada (1)

D. R. ISSLER

AAPG Bulletin

... curve. In compositionally heterogeneous shale sequences, a knowledge of shale composition and its effect on log response is essential to avoid introducing...

The Integration of Hydrodynamics and Stratigraphy, Muddy Sandstone, Northern Powder River Basin, Wyoming and Montana

D. A. Smith

Wyoming Geological Association

... due to the hydraulic gradient, zd, can be calculated as follows: where xo is the horizontal width of the oil accumulation in the direction of dip...

3-D Tomographic Amplitude Inversion for Compensating Transmission Losses in the Overburden

Barry Hung, Kefeng Xin, Sergey Birdus, James Sun

Indonesian Petroleum Association

... that are not restricted to originate from near surface. The analysis is performed on the migrated data and based on the tomographic velocity updating algorithm described...

A Feasibility Study Using Wells and Controlled Source Electronic Modeling in a Miocene Reservoir, Offshore Mexico

Paola Vera de Newton, Amanda Geck Alvarez, Marco Vázquez, Humberto Salazar

GCAGS Transactions

...., 2010), and by combining both horizontal and vertical measurements at the well it is observed that this effect causes an overlap between non-reservoir...

Integration of Multicomponet Surface Seismic, Multicomponent VSP and Microseismic in Reservoir characterization

Paul Constance, Jim Simmons, Shihong Chi, Lisa Sanford

Unconventional Resources Technology Conference (URTEC)

...-Wave Anisotropy: PS converted waves polarize parallel and orthogonal to fractures in the subsurface. The resultant effect is in velocity and polarization...

Abstract: Determining Scale Properties from Seismic Transmission Responses: A Modeling Study; #90171 (2013)

Emmanuel L. Bongajum and Bernd Milkereit

Search and Discovery.com

... problem to adequately image reflections from targets (ore body). The perturbations in velocity and density are responsible for fluctuations...

Abstract: Determining Scale Properties from Seismic Transmission Responses: A Modeling Study; #90171 (2013)

Emmanuel L. Bongajum and Bernd Milkereit

Search and Discovery.com

... problem to adequately image reflections from targets (ore body). The perturbations in velocity and density are responsible for fluctuations...

Effective Fracture Geometry Analysis Based on Data of Well Production, Pressure Gauge, and Strain Change of HFTS-1-III in Eagle Ford Shale

Fatima Almarzoog, Kan Wu, Ge Jin

Unconventional Resources Technology Conference (URTEC)

... fracture geometry in a horizontal multi-stage fractured well, incorporating production, pressure, and strain data. The essential feature of the workflow...

Wide-Angle Seismic-Reflection and -Refraction Data from the Solomon Islands

A. K. Cooper, R. A. Wood

Circum Pacific Council Publications

... the slope and intercept of the fitted lines to determine the thickness and velocity for each layer. Because a refractor is not generally observed...

2D numerical simulation of the filling process of submarine minibasins: Study of deposit architecture

Elena Bastianon,, Enrica Viparelli, Alessandro Cantelli, Jasim Imran

Journal of Sedimentary Research (SEPM)

... in Table 2 to systematically study the effect of flow duration, sediment size distribution, inlet flow velocity, depth, and densimetric Froude number...