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Title: DOE's UAS Efforts on the North Slope of Alaska.


Abstract not provided.

Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
Report Number(s):
DOE Contract Number:
Resource Type:
Resource Relation:
Conference: Proposed for presentation at the UAS TAAC Conference 2012 (Unmanned Aircraft Systems Technical Applications & Analysis Center) held December 4-6, 2012 in Bernalillo, NM.
Country of Publication:
United States

Citation Formats

Ivey, Mark D., and Zak, Bernard Daniel. DOE's UAS Efforts on the North Slope of Alaska.. United States: N. p., 2012. Web.
Ivey, Mark D., & Zak, Bernard Daniel. DOE's UAS Efforts on the North Slope of Alaska.. United States.
Ivey, Mark D., and Zak, Bernard Daniel. 2012. "DOE's UAS Efforts on the North Slope of Alaska.". United States. doi:.
title = {DOE's UAS Efforts on the North Slope of Alaska.},
author = {Ivey, Mark D. and Zak, Bernard Daniel},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2012,
month =

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  • This book contains the results of the Alaska North Slope study. There are 29 selections covered in the following sections: Basic Source Rock Evaluation and Carbon Isotope, Source Rock Evaluation Including Isotopes and Biomarkers, Source Rock Evaluation and Biomarkers, and Specialized or Statistical Approaches.
  • Seismic geometries in the deep marine Torok Formation illustrate that catastrophic slope failure involving both slope and basin-plain sediments occurred during Early Cretaceous time on the North Slope of Alaska. The magnitude of the failure emphasizes the importance of slumping and sliding as processes of mass transport of sediment in the deep marine environment. Torok sandstones and shales were deposited on continental slopes, basin plains, and submarine fans. Fluvial-deltaic sands and shales of the Nanushuk Group are the time-equivalent shelf deposits. The nanushuk-Torok relationship is expressed seismically as offlapping reflectors that record shelf-edge progradation. Slumps and slides are common onmore » Torok slopes where gradients of up to 10/sup 0/ are documented. The largest such feature, located near Harrison Bay, is 1500 mi/sup 2/ in area and 2000 ft thick. The disturbed zone is lobate in plan view, wedge shaped in cross section, and thins basinward from a dramatic scarp deeply incised into Torok foreset beds. Seismically, the slide is expressed as a series of remnants of undisturbed or rotated glide blocks that strike parallel with the slump scarp and are encased in chaotically bedded slump debris. Geometric similarities to the Turnagain Heights slide (Anchorage, 1964) suggest block gliding as the mechanism of slope failure. Because the Torok was initially sand-poor, wells drilled through glide blocks and slump debris encountered predominantly shale. Understanding similar seismic geometries in other slope systems will aid in their evaluation as hydrocarbon traps. Favorable reservoir and trap scenarios include turbidite sands in remnant blocks trapped against slump fill and younger turbidite sands ponded behind remnant topography.« less
  • In 1973 during the drilling of the West Sak number1 well on the North Slope of Alaska, oil was first recovered from a shallow Cretaceous sand interval which was later informally named the West Sak sands by ARCO Alaska. Stratigraphically above the West Sak sands there are two additional oil bearing sands, and are informally referred to by ARCO as the Ugnu and the 2150 horizons. Oils in these shallow sands appear to have migrated from the nearby, more deeply buried Prudhoe Bay Sadlerochit reservoir and appear to have lost substantial amounts of light hydrocarbons as the deeper oil passedmore » through the bubble point at approximately 1,219 m (4,000 ft) during updip migration, reducing the API gravity. In addition the shallow oil appears to have suffered biodegradation further lowering the API gravity. The updip portion of these three reservoir sands are within the gas hydrate stability field. Gas hydrates are interpreted to exist in the West Sak number6 well in conjunction with heavy oil and the physical properties of this oil may have been influenced by the gas hydrate. Prior to this work, only experimental evidence suggested that hydrates and oil could exist in the same reservoir.« less
  • Sandstone lithologies in the Lower Cretaceous Kuparuk River formation were tested to study formation damage during acid treatments. Two lithologies were analyzed before and after acidization: a glauconitic sandstone cemented by siderite, and a sandstone containing clay minerals with minor carbonate cements. These samples were treated with hydrochloric acid containing iron-chelating and silt suspending agents, with hydrofluoric acid, and with fluoroboric acid, all at reservoir pressure and temperature. Formation damage was evaluated by scanning electron microscopy (SEM), X-ray diffraction, petrographic analyses, and acid effluent analyses. Carbonate cement and clay mineral content were critical factors that governed the extent of formationmore » damage.« less