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The AAPG/Datapages Combined Publications Database

Showing 583 Results. Searched 190,987 documents.

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Theoretical Approach to the Geological History of the Southern United States

William F. Tanner

GCAGS Transactions

... deformational history tapered off during the late Paleozoic, as the continent moved poleward. North-south compression (ambient coordinates) was followed...





... not allow differentiation of the tapered club shape that is typically associated with Teredolites (e.g., Bromley et al. 1984). Some of the ovate...


Depositional Environments in Central Wyoming During the Early Cretaceous

William H. Curry III

Wyoming Geological Association

... of transport. For example, the preservation of the delicate tapered tips of Salix, which taper from.3 to.05 inches in the upper 1 inch of the leaf, suggest...


Psilophyton: the Genus and the Concept

Francis M. Hueber

CSPG Special Publications

... circinnately recurved (Plate I, Fig. 12), or straight (Plate I, Fig. 11), and are gradually tapered. Sporangia terminate most of the ultimate divisions...


Lengguru, Irian Jaya: Prospect Selection Using Field Mapping, Balanced Cross-Sections, and Gravity Modelling

D. T. Moffat, L. F. Henage, R. A. Brash, R. W. Tauer, B. H. Harahap

Indonesian Petroleum Association

... the roof sequence (Figure 10B). The basement wedge is thinly tapered, and is emplaced across a 15 km width beneath the region, as is shown in the balanced...


Deep Water Discharge: Key to Hydrocarbon and Mineral Deposits (Part II)

W. H. Roberts, III

Houston Geological Society Bulletin

... and Clearwater rivers join to run north. In the subsurface, the tapered and ragged eastern edge of the Elk Point evaporite (see Figure 34) passes through...


Development of the First Internationally Accepted Standard for Geologic Storage of Carbon Dioxide Utilizing Enhanced Oil Recovery (EOR) Under the International Standards Organization (ISO) Technical Committee TC-265

Steven M. Carpenter, George J. Koperna

Unconventional Resources Technology Conference (URTEC)

... favorable to CO2, slowly becoming more and more favorable to water over the life of the CO2 flood. This is termed a tapered WAG [8]. Figure 8 depicts...


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)

... angle. After migration the specularity taper can be efficiently designed and the specularity gathers tapered and stacked over the specularity URTeC...


Scolecodonts: I. Descriptive Terminology and Revision of Systematic Nomenclature; II. Lectotypes, New Names for Homonyms, Index of Species

J. Jansonius, J. H. Craig

CSPG Bulletin

... more or less sharply tapered; myocoele may be slightly enclosed at the anterior end, but usually it extends up to the anterior edge of the first denticle...


Quantitative and Qualitative Evaluation of Micro-Porosity in Qusaiba Hot Shale, RubAl-Khali Basin, Saudi Arabia

Mohamed O. Abouelresh

Unconventional Resources Technology Conference (URTEC)

... of mineral they are associated with. Pore shapes include, slit-like, circular, tapered, polygon and triangular (Fig. 3). The size of the inorganic-related...


Late Proterozoic Orange-Weathering Stromatolite Biostrome Mackenzie Mountains and Western Arctic Canada

C. W. Jefferson, G. M. Young

CSPG Special Publications

... less than 1 mm to more than 3 cm wide. Thicknesses are variable, most 0.5 to 2 mm. The ends of the segments are tapered or abrupt. Well preserved...


Simulating the NMR Response for Organic Rich Shales

Kathryn Washburn

Unconventional Resources Technology Conference (URTEC)

... relaxivity parameter rho 2, Magnetic Resonance Imaging, pp 761-767 Kleinberg RL, Boyd A. 1997. Tapered cutoffs for magnetic resonance bound water volume...


Successful Strategies for Cost Reduction in Plug and Ball Seat Milling Operations

Don McClatchie, Jake Kardash, Lyndsey Thomas, Kevin, Lypkie

Unconventional Resources Technology Conference (URTEC)

... using the optimized approach. All mill-outs were performed using conventional coiled tubing spreads with near identical, tapered 2 3/8” strings...


Interactions between deep-water gravity flows and active salt tectonics

Zoë A. Cumberpatch, Ian A. Kane, Euan L. Soutter, David M. Hodgson, Christopher A-L. Jackson,, Ben A. Kilhams, Yohann Poprawski

Journal of Sedimentary Research (SEPM)

... between sediment accumulation rate and diapir rise rate. Giles and Rowan (2012) recognize two end-member stacking patterns; tapered (stacked wedge...


Accumulation of a Middle Cambrian Deep Water Limestone Debris Apron Adjacent to a Vertical Submarine Carbonate Escarpment Southern Rocky Mountains Canada

Ian A. McIlreath

Special Publications of SEPM

... APRON stacked overlapping slide masses prograding Repetition of sliding has produced much of the tapered wedge configuration of the basinal flank...


Physical Analysis of Oil Sands

P. G. Nutting

AAPG Bulletin

... that changing pycnometers means extra weighings and that the bottle form is not as easily cleaned or filled. Pycnometers with tapered ground joints...


Maximizing Efficiency in Haynesville Restimulations: A Case Study in Improving Lateral Coverage to Maximize Incremental Gas Recovery

Andrew Whitsett, James Holmedal, Dick Leonard

Unconventional Resources Technology Conference (URTEC)

... of tapered casing strings. Current industry trends in restimulation efforts use biodegradable particulate diverters for isolation control. These diverters...


Saturated hydraulic conductivity (Ks) of earth materials in the weathering profile over quartz-mica schists of the Seremban area, Negeri Sembilan

John Kuna Raj

Geological Society of Malaysia (GSM)

.... The tubes had a constant wall thickness of 0.3 cm, except towards one end where the lower 1.5 cm tapered to a wall thickness of 0.15 cm to provide...


Microseismic Activity: What Does It Really Say? Insights from Coulomb Failure Function Analysis

Pierre-Francois Roux

Unconventional Resources Technology Conference (URTEC)

... sub-cells. The maximum horizontal displacement (opening) is 5mm. unrealistic stress concentrations at the edge of the fracture, it is tapered...


Character of Producing Sandstones and Limestones of Wyoming and Montana

John G. Bartram

AAPG Bulletin

... and Wingate sandstones are more than 2,000 feet thick. This sand body continued into western Wyoming as the Nugget sandstone, but tapered out in an even...


Intercutaneous Wedges, the Triangle Zone and Structural Thickening of the Mynheer Coal Seam at Coal Valley in the Rocky Mountain Foothills of Central Alberta

H.A.K. Charlesworth, L.G. Gagnon

CSPG Bulletin

... in the Rocky Mountain Foothills of central Alberta were intercutaneous wedges. Each wedge tapered northeastward and was bound upward and downward by southwest...


The Petrology of a Specimen of the Perry Farm Shale

W. D. Keller, Chuen Pu Ting

Journal of Sedimentary Research (SEPM)

... fraction from the bottom of the centrifuge tube was facilitated by grinding off the tapered end of a 20 ml centrifuge tube to leave a hole 1 mm...


Fragmentation Processes in Explosive Volcanic Eruptions

Grant Heiken, Kenneth Wohletz

Special Publications of SEPM

... was a drop let with a tapered tail folded back onto itself Also present are shards broken from highly inflated vesicular droplets that either burst or broke...


Completion and Perforation Strategy Successfully Improved Hydraulic Fracturing Operation in Deep Hpht Well: A Case History

Erwin Kurniawan, Ery Mohamad Fajar Putra, Eko C. Aprilianto, Farid Ghozali, Sudjati Rachmat

Indonesian Petroleum Association

...) running inside a tapered tubing string from 2-3/8-in. to 3-1/2-in. The using of HMX type in this well was not optimum because the actual temperature...


Determining Fracture Geometry in a Multifractured Horizontal Well Using DFIT Interpretation, Intra-well Fracture-To-Fracture Interference, and Production History Matching

David P. Craig

Unconventional Resources Technology Conference (URTEC)

... along the lateral connecting at fracture tips from toe to heel. A tapered fracture pattern was simulated to illustrate a horizontal well where...


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