New Perspectives on Deep-water Sandstones: Origin, by G. Shanmugam

By G. Shanmugam

This instruction manual is key for realizing the foundation of deep-water sandstones, emphasizing sandy-mass delivery deposits (SMTDs) and bottom-current remodeled sands (BCRSs) in petroleum reservoirs. This state of the art standpoint, a practical replacement to the normal turbidite techniques, is important as the turbidite paradigm is outfitted on a doubtful beginning with out empirical facts on sandy turbidity currents in glossy oceans. within the absence of proof for sandy turbidity currents in common environments, dependent theoretical types and experimental observations of turbidity currents are inappropriate substitutes for explaining the beginning of sandy deposits as ''turbidites.'' In documenting smooth and historical SMTDs (sandy slides, sandy slumps, and sandy debrites) and BCRSs (deposits of thermohaline [contour] currents, wind-driven currents, and tidal currents), the writer describes and translates center and outcrop (1:20 to 1:50 scale) from 35 case reviews around the world (which comprise 32 petroleum reservoirs), totaling greater than 10,000 m in cumulative thickness, conducted up to now 36 years (1974-2010). The e-book dispels myths in regards to the significance of sea point lowstand and offers much-needed readability at the triggering of sediment mess ups by way of earthquakes, meteorite affects, tsunamis, and cyclones with implications for the distribution of deep-water sandstone petroleum reservoirs.

  • Promotes pragmatic interpretation of deep-water sands utilizing substitute possibilities
  • Validates the industrial value of  SMTDs and BCRS in deep-water exploration and production
  • Rich in empirical facts and well timed new views 

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Extra info for New Perspectives on Deep-water Sandstones: Origin, Recognition, Initiation and Reservoir Quality

Example text

High-concentration cohesionless sediment-gravity flow”a Cretaceous, Lucina (deep lacustrine) and Lucina West Marine, South Gabon Conventional core Smith (1995) 55. “Cohesionless debris flow/densitymodified grain flow”a Cretaceous, Yongdong Basin (lacustrine fan delta), Korea Outcrop Kim et al. (1997) 56. Sandy debris flow Upper Jurassic, Hareelv Formation, East Greenland Outcrop Surlyk and NoeNygaard (2001) 57. Sand-grade density flowa Upper Jurassic, Olympen Formation, East Greenland Outcrop Bruhn and Surlyk (2004) 58.

Sandy debris flow Middle Jurassic, Oseberg Delta, Northern North Sea Conventional core Muto and Steel (1997) 60. Sandy debris flow Triassic, Yanchang Formation (deep lacustrine), Ordos basin, China Conventional core and outcrop Li et al. (2010) 61. Sandy debris flow Triassic, Western Qinling and Songpan Terrane (deep marine), China Outcrop Meng et al. (2007) 62. Sandy debris flow and sandy slump Pennsylvanian, Jackfork Group, Ouachita Moutains, Arkansas and Oklahoma Outcrop Shanmugam and Moiola (1995) 63.

Arrow marks a normally graded unit with fine-grained sand at bottom (light gray) grading into clay (dark gray) near top. Note that these thin-bedded units cannot be resolved on seismic data. Zafiro Field, Pliocene, Equatorial Guinea. After Shanmugam (2006a), with permission from Elsevier. a. 13). But the timing of emplacement of the turbidite sand has not been correlated with the date of the earthquake on November 18, 1929. Such a precise correlation is not possible because available radiocarbon dating methods cannot resolve the emplacement of a sand layer to a particular day.

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