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The AAPG/Datapages Combined Publications Database

Showing 44,238 Results. Searched 191,769 documents.

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Abstract: 2D Depth Velocity Analysis without Tomography; #90187 (2014)

J. Patrick Butler and Randy Kolesar

Search and

... angle of reflection on the segment. These traces can then be combined to form common offset gathers. Velocity can be scanned in any zone...


Interpretation of Stratification: ABSTRACT

Edwin D. McKee

AAPG Bulletin

... types of stratification and cross stratification include (1) flat or horizontal bedding, (2) low-angle, simple or planar cross-stratification, (3...


ABSTRACT: Basic Types of Submarine Slope Curvature and Their Application to Carbonate Systems; #90007 (2002)

Erwin W. Adams, Wolfgang Schlager

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... due to erosion and redistribution of sediment during storms and sea-level fluctuations. A straight slope segment at the angle of repose develops...


Horizontal Distance Corrections and Plotting Errors in Stadia Surveying: GEOLOGICAL NOTES

Richard L. Threet

AAPG Bulletin

... = horizontal distance S = stadia interval read on plumb rod ^Thgr = vertical angle to point on rod (f+c) = stadia constant--approximately 1 foot...


Abstract: Seismic Array Response in the Presence of Intra-Array Variations in Element Weights, Elevations, and Positions; #90319 (2018)

Ryan Adhi Putra, Abdullatif Al-Shuhail

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..., and elevations on the receiver seismic arrays response is addressed in this study. These variations are common especially in areas with rugged topography...


Wettability in Niobrara, Codell, Eagle Ford, Bakken, and Wolfcamp Formations: For EOR and CCUS Applications

Ozan Uzun, Hossein Kazemi, Stephen A. Sonnenberg

Unconventional Resources Technology Conference (URTEC)

... channels and the outcome of improved and enhanced oil recovery in the reservoir. The contact angle between each pair of fluids and the pore surface...


Origin, Sedimentary Features, and Significance of Low-Angle Eolian "Sand Sheet" Deposits, Great Sand Dunes National Monument and Vicinity, Colorado

Steven G. Fryberger, Thomas S. Ahlbrandt, Sarah Andrews

Journal of Sedimentary Research (SEPM)

... are found in both low-angle eolian deposits and high-angle eolian deposits, most of these features are much more common (or unique) in low-angle deposits...


Abstract: Different Approaches for Removing the Primary Artifacts in Reverse Time Migration; #90254 (2016)

Hongwei Liu, Tong Fei, Yi Luo

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... method applied to the angle domain common image gather (ADCIG); and (6) the muting method applied to the offset domain common image gather (ODCIG). Our...


Geometry of the Hanging Wall Above a System of Listric Normal Faults--A Numerical Solution

Renato M. Darros de Matos

AAPG Bulletin

... geometries. Even though there is a remarkable difference in the emergence angle of each system, they share some common characteristics: (1) the depth...


Analysis of Formation Factor for Trajectory Deviation in Directional Drilling Well X Field Y

Mohammad Reiza, Cindy Annisa Firdausiah

Indonesian Petroleum Association

... deviation in well X was an inhomogeneous formation and hardness differences of lithology that affected the inclination angle and direction away from...


High-angle Beach Stratification, Sapelo Island, Georgia

John H. Hoyt

Journal of Sedimentary Research (SEPM)

...High-angle Beach Stratification, Sapelo Island, Georgia John H. Hoyt 1962 Vol. 32 No. 2. (June), Foreshore sand bars at Sapelo Island typically have...


"Jacob Staff" and Measurements of Stratigraphic Sequences: GEOLOGICAL NOTES

J. A. Broggi

AAPG Bulletin

... reads an angle equal to the dip of the strata because the two equal triangles have a common horizontal base; but in Figure 4 the base is inclined...


Laboratory Study: Reusing Surfactant Performance on Waxy Oil for Improving Cost Efficiency on Surfactant Huff and Puff Stimulation

Aris Wakhyudin, Ahmad Murofiyanto, Ismail Halim, Iqbal Fauzi, Miftah Hidayat, Leksono Mucharam

Indonesian Petroleum Association

...-formation water and oilsurfactant is measured before the test for understanding surfactant performance on lowering IFT. Contact angle measurement...


Late Cenozoic High- and Low-Angle Normal Faulting and Related Igneous Events in Gold Hill, Northern Deep Creek Mountains, Western Utah

Jamie P. Robinson

Utah Geological Association

... in the hanging wall. Diabase and andesite are common along the normal faults which truncate the low-angle fault. Discussion Age relationships between post...


Visualization of Angular Unconformities and Tectonic Angular Discordance Measurement Constraints by Structural Geometrical Flattening: Case Studies in the Permian (California), Grand Canyon (Arizona), Chad Basin (Nigeria), Algarve Basin (Iberian Peninsula), and the Aegean Sea Basin (Turkey)

Adewale Amosu, Yuefeng Sun

GCAGS Transactions

... the older rock unit may be composed of several sequence tracts, simultaneously separated from the younger rock unit by a common time-significant...


Interpretation of Faults in Glaciofluvial Sediments

Barrie C. McDonald, William W. Shilts

Special Publications of SEPM

... or as is also common in glacial sediments shear forces exerted by an overriding glacier High angle reverse faults dip more than 45 degrees at depth...


Wettability: Part 5. Laboratory Methods

Jim Funk

AAPG Special Volumes

..., while the second is the most common. The third is the most varied in terms of methods and results. TECHNIQUES Contact Angle Measurements If a liquid...


Ancient Beaches in Oil Finding

Dr. Warren O. Thompson

Panhandle (Texas) Geological Society

... and other platy minerals are not common. Materials of upper foreshore beaches are arranged in extensive laminae. Particles in a single lamina are of uniform...


ABSTRACT: Productive Logging while Drilling Maximizes the Pay Exposure- a Case Study from Mumbai High North Field; #90118 (2011)

Sanjay Kumar, S. K. Anand, R. B. Nimbalkar, Aditi Shankar Farzad Irani, and Julie Singh

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... is a highly heterogeneous multilayered carbonate reservoir, now in a declining phase of production. Most wells being drilled are either high angle...


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