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The AAPG/Datapages Combined Publications Database
Showing 47,080 Results. Searched 200,626 documents.
Crooked-Hole Problems in the Gulf Coast District
P. C. Murphy , Sidney A. Judson
AAPG Bulletin
... the hard formations, the holes continued to make an angle with the vertical, but ordinarily a smaller angle. A survey of the type mentioned showed...
1930
RSS PowerDrive Orbit: Records in Challenging Mahakam Swamp Directional Well
Alvin Ivan Handoko, Rangga Saputra, M. Dahnil Maulana, Timora Wijayanto, Esa Taufik
Indonesian Petroleum Association
... performance. During the tangent section, the tool also managed to maintain the angle with low steering ratio 20-50%. RSS PD Orbit takes the drilling performance...
2019
Some Inference Problems in Paleocurrent Studies
David J. Sanderson
Journal of Sedimentary Research (SEPM)
... distribution. It can be seen that the vector summation method used above is similar to the calculation of the phase angle of the lth harmonic of a Fourier...
1973
Depositional Environments of the Pennsylvanian Pottsville Formation in the Black Warrior Basin of Alabama
Catherine A. Horsey
Journal of Sedimentary Research (SEPM)
... is very well sorted, structureless, rooted or low-angle-crossbedded sandstone that contains zones FIG. 1. Outcrop distribution of Pottsville Formation...
1981
Drilling Induced Petal Fractures in Coal Core: A Simple Method of Using These Features in Conjunction with Bore-Wall Breakout to Determine the Angular Relationship between Cleat and Maximum Horizontal Stress as Well as Cleat Azimuth in Vertical Drill-Holes
David Titheridge
Petroleum Exploration Society of Australia (PESA)
... they intersect the core perimeter. By measuring the angle between the apex of petal fractures and both intersections of a cleat chord on the core...
2012
Bud feeding in the fossil record: a case study of leaf compressions from the Eocene Geiseltal Fossil Site, Germany
Rebecca N. Dekoster, Lutz Kunzmann, Carola Kunzmann, Victoria E. McCoy
PALAIOS
... (Edwards et al. 2016). While not exceptionally common, bud-feeding damage on fossil leaves, recognized as symmetrical hole feeding perforations on either...
2025
Controls on Facies Architecture of a Large Triassic Carbonate Platform: the Great Bank of Guizhou, Nanpanjiang Basin, South China
Daniel J. Lehrmann , Jiayong Wei , Paul Enos
Journal of Sedimentary Research (SEPM)
... was dominated by turbidites and debris-flow deposits but eventually shifted to avalanche and rock-fall deposits as the slopes steepened to the angle...
1998
Application of Zero Offset 2D CRS-Stack Method for Low Fold Data: Synthetic and Real Data Examples
R. Sule, A. Hendriyana, P. D. Anggraini, Fatkhan, Alfian, Sardjito, Waluyo, Adriansyah
Indonesian Petroleum Association
.... Only estimation of near surface velocity model is needed. The ZO CRSstack method depends on three stacking operators, namely emergence angle, radius...
2009
Upwelling, Thermoclines and Wave-Sweeping on an Equatorial Carbonate Ramp: Lower Carboniferous Strata of Western Canada
Richard T. Brandley, Federico F. Krause
Special Publications of SEPM
...; the common medium to large, low-angle cross-beds grain size the common medium to large low angle cross beds that indicate combined flow conditions...
1997
High Resolution Diffraction Imaging of Small Scale Fractures in Shale and Carbonate Reservoirs
Alexander M. Popovici, Ioan Sturzu, Tijmen J. Moser
Unconventional Resources Technology Conference (URTEC)
... migration output in common-image gathers, depending on offset or reflection angle, and designing a mute function to properly mute unwanted (far-offset) energy...
2015
Triangle Zone Beer & Bull May 11, 1994
Andrew C. Newson, Thomas E. Kubli, Roland G. Dechesne, Paul A. Mackay, Jeff P. Reid, John L. Varsek
CSPG Bulletin
... from the wells in the area; large-scale stratigraphic repetitions within the wells are not that common, and often one sees fairly steep dips within...
1996
Multi-basin Case Study: Remediating Damage From Fracture Driven Interactions Utilizing a Rigless Chemical Process
Mike Lantz, David Garza, Japan Trivedi
Unconventional Resources Technology Conference (URTEC)
... interference (FDI) damage to the parent. While FDIs, or frac hits, are common in all shale plays the production effects on the parent can vary...
2023
Exploratory Flow-Duct Experiments on Combined-Flow Bed Configurations, and Some Implications for Interpreting Storm-Event Stratification
R. William Arnott , John B. Southard
Journal of Sedimentary Research (SEPM)
... with increasing Uu, although they remain less than the angle of repose. At high oscillatory velocities (Uo, 0.70-0.80 m/sec), plane bed is the stable bed phase...
1990
Developing Reliability in Hydraulic Stimulation Operations
Jason Pitcher, Jay Painter, Amanda Heitsch, Lucile Turpin
Unconventional Resources Technology Conference (URTEC)
...: 1932603 2 In many areas, the operator is not the only owner of the risk of NPT. An increasingly common trend is for operators to share the risk...
2014
A Tectonic Origin for Microfaults in the Mississippian-Pennsylvanian Tesnus Formation, Marathon Basin, Trans-Pecos Texas
Timothy N. Diggs
West Texas Geological Society
... 125 Microfaults are common deformational features in the Tesnus Formation and, to a lesser extent, other units in the Marathon Basin. Microfaults...
1990
6. Facies Models for Meandering Rivers
Andrew D. Miall
AAPG Special Volumes
... as a form of large scale, low angle crossbedding, termed epsilon cross-stratification by Allen (1963a). The dip of the crossbedding ranges from 1...
1981
Measured Sections of Sandstones and Shales: GEOLOGICAL NOTES
John W. Shelton
AAPG Bulletin
... and the wide range in methods used in recording and presenting the data. The most common method involves a written description, from which a graphic...
1963
Abstract: Reservoir Characterization of Tidally-Influenced Reservoirs - Analogues for Exploration and Development; #90235 (2015)
Dale Leckie
Search and Discovery.com
... occurred in a zone of tidal-fluvial transition; tidal indicators are rare to common. Yet, geomorphologically, the depositional environment appears...
2015
Geology of the Southern Egan Range, Nevada
Harold E. Kellogg
Utah Geological Association
... corals are common and usually silicified. The lower member is 1,355 feet thick north of Silver Spring. The upper member is yellow, brown, or pink...
1960
Reducing seismic quantitative interpretation uncertainty in complex geological environments: A case study from offshore Australia
Andrea Paxton, Lianping Zhang, Abdul Kholiq, Lee Davey, Richard Bisley, Dominic Fell, Leo Leon, James Shadlow
International Meeting for Applied Geoscience and Energy (IMAGE)
... and angle-dependent reflectivity volumes for multiple objectives within a large survey over a large vertical depth interval as part of an advanced multi...
2022
Geology and Reservoir Characteristics of the Santa Ynez Unit, Santa Barbara Channel, Off California
U.S. Geological Survey
Pacific Section SEPM
... in the vicinity of the Santa Ynez Unit (figure II-20)** 1 . All of the faults are high angle reverse faults except the fault which trends northeast-southwest...
1983
Finite Difference Modelling: Part IV
Lasse Amundsen, Ørjan Pedersen, Martin Landrø
GEO ExPro Magazine
... velocities, the angle of reflection is equal to the angle of incidence; further, Snell’s Law gives the relationship between the angles of incidence...
2019
Depositional Sequences in Glaciolacustiline Deltas
Thomas C. Gustavson, Gail M. Ashley, Jon C. Boothroyd
Special Publications of SEPM
... is overl;lin by low-angle type B, which in turn is overlain by tlraped lamination. This sequence of sedimentary structures suggests deposition under...
1975
Upper Cretaceous Shannon Sandstone: An Offshore, Shallow-Marine Sand Body
Darwin R. Spearing
Wyoming Geological Association
.... The cross strata vary from low-angle planar sets to high-angle trough sets. One cross set generally comprises an entire thickness. Tops of these isolated...
1976
Val Verde Basin Structual Geology Related to the Rest of the Permian Basin
G. Pat Bolden
West Texas Geological Society
... and microscopically. Low relief structures should lie at an angle of 30°±15° to the wrench direction with either a left hand or right hand sense. Riedel shears...
1983