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The AAPG/Datapages Combined Publications Database

Showing 34,502 Results. Searched 200,619 documents.

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Thrust Faulting and Hydrocarbon Generation: REPLY

Janell D. Edman , Kevin P. Furlong

AAPG Bulletin

..., 1984) and its companion paper (Edman and Surdam, 1984) include this effect of an initially lowered gradient, which through time increases back...

1987

Selective Entrainment of Sediment Graded by Size and Density Under Waves

Matthew R. Tomkins, Peter Nielsen, Michael G. Hughes

Journal of Sedimentary Research (SEPM)

... of settling velocity. This behavior cannot be reconciled with gradient diffusion, inasmuch as that process prescribes Ls w-1 for sediment...

2003

Aspects of Vertical Multiphase Flow Determination and Calculation Procedure in South Palembang District Oil Wells

Okti Barmi, M. Assegaf

Indonesian Petroleum Association

... gradient than any of the other factors. This is because gas has lower density compared to the liquids, and the effect is to lower the pressure gradient...

1983

AVO Attribute Analysis for Gas Hydrate in Shenhu Area; #41228 (2013)

Rui Yang, Nengyou Wu, Zhibin Sha, and Jinqiang Liang

Search and Discovery.com

... is a technique by which geophysicists attempt to determine thickness, porosity, density, velocity and fluid content of strata. AVO analysis has gained...

2013

Imaging of multiwell and multifiber walkaway DAS-VSP datasets in a CCUS demonstration project onshore Japan

Yuji Yamada, Shotaro Nakayama, Takuji Mouri, Manish Lal Khaitan, Philip Armstrong, Olga Podgornova

International Meeting for Applied Geoscience and Energy (IMAGE)

...) analysis. For this analysis, corrections for the gauge length effect and data conversion from strain to velocity were performed (Sayed et. al., 2021...

2024

Analyzing BeefŽ Fractures: Genesis and Relationship With Organic-Rich Shale Facies

Mohammed Al Duhailan, Steve Sonnenberg, Mark Longman

Unconventional Resources Technology Conference (URTEC)

...’s modulus in the core, which indicates a VTI system (Willis, 2013). Also, horizontal compressional wave velocity is higher than the vertical compressional...

2015

Elastic frame moduli in a sandstone reservoir used for underground CO2 storage

Colin M. Sayers

International Meeting for Applied Geoscience and Energy (IMAGE)

...., 2014). Figure 2 shows the variation in P- and S-velocity with depth, color-coded by porosity. P- and S-velocities are significantly lower in the Lower...

2022

Mapping Rock-Property Changes and Fluid Migration Due to Hydraulic Fracturing

Jyoti Behura

Unconventional Resources Technology Conference (URTEC)

... 1037 3 Velocity Compaction ng turi rac F Confining Pressure − Pore Pressure Figure 2: Schematic figure explaining the geomechanical effect...

2020

Geothermal convection in South Atlantic subsalt lacustrine carbonates: Developing diagenesis and reservoir quality predictive concepts with reactive transport models

Gareth D. Jones, Yitian Xiao

AAPG Bulletin

... (contour interval of 5C) and horizontal X fluid velocity (red = updip flow, blue = downdip flow). Arrows show flow direction. (B) Calcite dissolution (blue...

2013

Normal Geothermal Gradient in United States

C. E. Van Orstrand

AAPG Bulletin

..., therefore, to approximate to a normal gradient must take these two important variations into account. Variation in the horizontal is illustrated...

1935

Investigation of Lateral Fracture Complexity to Mitigate Frac Hits During Interwell Fracturing

Yanli Pei, Jiacheng Wang, Wei Yu, Kamy Sepehrnoori

Unconventional Resources Technology Conference (URTEC)

... with microfractures (Nguyen and Fleming, 2012; Sierra, 2016), as shown in Figure 1a. Most small parallel branches are connected to the horizontal wellbore but do...

2020

Graphical Methods of Calculation in Interpretation in Work with the Torsion Balance: DISCUSSION

Donald C. Barton

AAPG Bulletin

... ratios of thickness to length. The first crude predecessor of the writer's present horizontal prism type--constructed in 1924, approximately one year...

1929

Traction-Carpet Stratification in Turbidites--Fact or Fiction?: DISCUSSION

Young Kwan Sohn

Journal of Sedimentary Research (SEPM)

.... CHEEL, R.J., AND MIDDLETON, G.V., 1986, Horizontal laminae formed under upper flow regime plane bed conditions: Journal of Geology, v. 94, p...

1995

Rate Transient Effects of Various Complex Fracture Network Topologies in Unconventional Gas Reservoirs: A Numerical Simulation Study

Jiamin Jiang, Rami M. Younis, Leslie Thompson, Zhe Liu

Unconventional Resources Technology Conference (URTEC)

... transient behavior of horizontal wells in unconventional gas reservoirs. High-fidelity numerical simulation is used to simulate rate transient data...

2015

The Relationship Between Geothermal Gradient and the Composition of Oil

G. V. Rudakov

Petroleum Geology: A Digest of Russian Literature

...The Relationship Between Geothermal Gradient and the Composition of Oil G. V. Rudakov 1961 663 664 Vol. 5 (1961) No. 12. (December) 1. Lykov, A. V...

1961

Should you rely on geothermal gradients?

David Ramjon

GEO ExPro Magazine

... geothermal gradient is not a good rule of thumb to extrapolate temperatures - not even close David Rajmon DAVID RAMJON 150 200 250 Temperature (°C) 1...

2024

Eolian Sand Control

Richard C. Kerr, John O. Nigra

AAPG Bulletin

... gradient. Bagnold (1941) has shown that the wind imparts sufficient velocity to each bouncing grain to flatten its downward course so that the mean angle...

1952

Woollybutt 2001: A Geoscience Odyssey

D. J. Hearty, M. A. Battrick

Petroleum Exploration Society of Australia (PESA)

... from east to west across the area that are responsible for the decreasing velocity gradient in this direction. Horizons BB, AA, CC, DD and EE refer...

2002

Dolomitization by Groundwater-Flow System in Carbonate Platforms

Michael Simms

GCAGS Transactions

... thermal convection in the subsurface of South Florida. This flow develops because there is a strong horizontal density gradient between the cold ocean...

1984

Time-lapse FWI prediction of CO2 saturation and pore pressure

Qi Hu, Kristopher Innanen

International Meeting for Applied Geoscience and Energy (IMAGE)

... effect on density is negligible. In Figure 6, we plot the velocity and density models corre- Third International Meeting for Applied Geoscience...

2023

Abstract: Lithostatic-Load Effects in Geologically Constrained Model Building for Foothills Anisotropic Seismic Imaging; #90255 (2017)

Rob W Vestrum, Greg Cameron, Dennis Ellison, Zoë Vestrum

Search and Discovery.com

... constraints as possible to constrain the seismic velocity model. Subsurface rock velocity is a function of lithology, geologic age, and compression due...

2017

Velocity continuation with Fourier neural operators for accelerated uncertainty quantification

Ali Siahkoohi, Mathias Louboutin, Felix J. Herrmann

International Meeting for Applied Geoscience and Energy (IMAGE)

...: https://doi.org/10.1111/13652478.12058. Poliannikov, O. V., and A. E. Malcolm, 2016, The effect of velocity uncertainty on migrated reflectors...

2022

Contemporary Seismicity and Tectonics of the Northern and Central Coast Ranges-Sierran Block Boundary Zone, California

Ivan G. Wong, Richard W. Ely, Auriel C. Kollmann

Pacific Section of AAPG

... the best station coverage were relocated employing several different velocity models, including two velocity-gradient-over-half-space models used...

1992

Abstract: Effects of Lateral Heterogeniety Scales on AVO Trends; #90174 (2014)

Ramin Saleh, Emmanuel Bongajum, and Bernd Milkereit

Search and Discovery.com

... horizontal boundaries and layering. The sensitivity of AVO to the layered structure may also provide information about the lateral extension of gas...

2014

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