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• Organic facies
  ...C (at % R_o = 0.5) || H (mg HC/g TOC) || Ol (mg CO₂/g TOC) ...netrates beyond the observable changes in color and induration and reduces TOC and HI values. It appears that the quantity and quality of all are diminish
  17 KB (2,472 words) - 17:39, 13 April 2022
• Haynesville and Bossier Shales (Upper Jurassic), East Texas and Northwest Louisiana
  ...he “sweet spot” related to higher percent weight of total organic content (TOC), higher average total porosity and higher original gas in place (OGIP; Fig
  4 KB (628 words) - 23:05, 3 March 2022
• Geological fieldwork benefits
  ...shale samples, for example, when analyzed for age, [[Total organic carbon (TOC)|organic richness]], and acoustic velocity can advance the understanding of
  5 KB (771 words) - 21:12, 1 February 2022
• Silurian Qusaiba shales
  ...ain]] Formations as the principal source rocks, with an average resident [[TOC]] content of about 3.5 wt.%, and sometimes as high as 14.3 wt.% (Cantrell e ...ntains poor to moderate [[organic]] richness (up to a few weight percent [[TOC]]) with mixed oil and gas potential (Cole et al., 1994)<ref name=Coleetal19
  18 KB (2,569 words) - 22:50, 8 January 2019
• Super basins
  ...uality oil-prone marine kerogen) and the Early Cretaceous Agrio Formation (TOC 2%–5%). Superimposed petroleum systems, combined with different structura ...n-Turonian Eagle Ford- Tuscaloosa super sequence has black shales and 4-7% TOC. These rocks also work as unconventional reservoirs. Three main reservoirs
  27 KB (3,791 words) - 19:35, 11 October 2022
• Iran petroleum systems
  ...At Kuh-e Bangestan, where the oil window was reached (Tmax 443°C), current TOC varies between 3.1 and 4.4%, and current HI varies from 190 to 260 g HC/kg ...with the isopach map of the Hanifa–Tuwaiq Mountain and Diyab source rocks (TOC in excess of 1%), their current thermal maturity expressed as vitrinite ref
  27 KB (3,901 words) - 13:51, 26 January 2017
• Petroleum basins of Turkey
  ...pper Silurian-Lower Devonian (D1, D2, and D3) are considered for analysis. TOC values are as follows: * B3 has six samples analyzed. TOC values vary from 0.14% to 0.38% and the mean is 0.25% ± 0.09%. This level
  52 KB (7,769 words) - 20:28, 18 January 2017
• Shale-gas resource systems
  ...TOC) and porosity. The Montney Shale shows poor and inverse correlation to TOC, whereas the Doig Phosphate shows good and positive correlation indicative ...een expelled, assuming an original [[hydrogen index]] (HIo) of 434 mg HC/g TOC. By difference, this suggests that 40% of the generated petroleum was retai
  73 KB (10,728 words) - 18:16, 11 January 2024
• Bakken and Three Forks Formations, Williston Basin, North Dakota and Montana
  ...hales of the Bakken, which average approximately 11% total organic carbon (TOC) and contain Type II kerogen. The primary reservoir targets are the low por
  7 KB (1,004 words) - 22:08, 4 March 2022
• Marcellus Shale (Devonian) -- Appalachian Basin
  ...rcellus Shale. Published data indicates the total organic carbon content (TOC) of the Marcellus Shale is as high as 11% (Repetski and others, 2008). As r ...re and others (2015), in northern West Virginia, the total organic carbon (TOC) content is generally 10% or greater, and reservoir pressures range from 0.
  19 KB (2,773 words) - 21:36, 4 March 2022
• Shale-oil resource systems
  ...ined by organic carbon. It is postulated that as much as 70 to 80 mg oil/g TOC is retained by organic-rich source rocks, thereby limiting producibility in ...ntents without performing the solvent extraction procedures and a separate TOC analysis. In this approach, free oil from the rock is thermally vaporized a
  97 KB (14,873 words) - 19:53, 11 January 2024
• Mudstones
  ...TOC] versus uranium; clay minerals versus thorium or potassium; pyrite and TOC versus bulk density; after Bohacs et al. .<ref name=Bhcs2014a />). Oc. Chem
  16 KB (2,352 words) - 18:46, 4 December 2023
• Vaca Muerta, La Luna Shale, South America
  ...highest producing wells in the play occur outside of the areas of thickest TOC accumulation (Figure 8). Recognition of these concepts and resultant explor
  11 KB (1,644 words) - 16:14, 11 May 2023
• Bakken and Three Forks Formations, Williston Basin, North Dakota and Montana (USGS)
  | TOC (wt%) || Avg 11% for Upper and Lower Bakken shales
  11 KB (1,595 words) - 20:20, 2 June 2021
• Petroleum source rocks
  ...urce rocks are evaluated by their carbon richness as total organic carbon (TOC) in weight percent (wt. %). They are also evaluated by their hydrogen richn
  12 KB (1,616 words) - 17:35, 13 April 2022
• Vaca Muerta play
  ...rocks in these sectors show the best reservoir characteristics (averages: TOC 5%; porosity 12%; clay 10%–20%; water saturation 20%), the most adequate ...aca Muerta Formation (VMF). (D) Thickness of the organic-rich section (>2% TOC) (OVM). (E) Line drawing showing the Vaca Muerta-Quintuco system (VMQS), th
  77 KB (11,201 words) - 20:07, 15 January 2024
• Appalachian Basin Marcellus gas play
  # Total organic carbon (TOC) content ...n (abs.)]: AAPG Eastern Section meeting.</ref> suggest calculated original TOC contents in the Marcellus Shale to be in the 4 to 20% range.
  89 KB (13,415 words) - 19:16, 16 January 2024
• Mudstone nomenclature
  ...ox Formation in the Paradox Basin of southeastern Utah, where the original TOC content ranges in the same bed from 1 to 4 wt. % over a distance of 3 km<re
  58 KB (8,391 words) - 19:46, 20 February 2024
• Basin modeling: identifying and quantifying significant uncertainties
  * Thickness, original [[total organic carbon (TOC)|total organic carbon]] and [[hydrogen index]] ...en]] index of the [[source rock]]; oTOC = original [[total organic carbon (TOC)|total organic carbon]] content of the source rock; OMT = organic matter ty
  38 KB (5,890 words) - 15:16, 23 August 2016
• Kerogen
  ...matrix effect related to organic richness occur in whole-rock samples with TOC values less than 10%.<ref name=Esptl1980 /><ref name=Hrsfld1980 /><ref name
  17 KB (2,363 words) - 17:40, 9 February 2022

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