Matches in SemOpenAlex for { <https://semopenalex.org/work/W2914042705> ?p ?o ?g. }
Showing items 1 to 92 of
92
with 100 items per page.
- W2914042705 abstract "Saudi Aramco has measured carbon isotope compositions of C1-C5 hydrocarbons and CO2 on hundreds of gases from exploration tests and producing wells. The isotope data group the gases into thermogenic families with different sources. For example, δ13C of gases associated with Jurassic Ghawar-type crudes increases from -54.6 3.0 ‰ for C1 to -39.6 1.6 ‰ for C2 and -27.6 0.9 ‰ for n-C5. In contrast, δ13C of Paleozoic gases increases from -42.1 6.1 ‰ for C1 to -31.9 4.5 ‰ for C2 and -29.5 3.0 ‰ for n-C5. The isotopic characteristics of the Jurassic-Ghawar and Paleozoic gas families appear heavily influenced by their source kerogen, Type IIS for the former (Upper Jurassic Hanifa and Tuwaiq Mountain carbonates) and Type II (Silurian Qusaiba hot shale) for the latter. C1/C1-C5 (mol/mol) of Paleozoic hydrocarbons ranges from 0.65 to 1.00 and is correlated with an increase in methane δ13C from -47 to -37 ‰. Within this range, we judge that liquids abundance and isotopes are controlled primarily by source rock maturation. Khuff, Unayzah, Devonian and Silurian- Ordovician gases are indistinguishable on common interpretive plots such as C1/C1-C5 hydrocarbons versus methane δ13C, providing evidence for a single dominant Paleozoic source. Most Paleozoic gases contain less than 10% CO2. δ13C of CO2 in unaltered gases from Khuff carbonate reservoirs typically fall between -3 and 3 ‰ whereas those from deeper clastic reservoirs fall between -20 and -5 ‰. Gases containing more than ppm levels of H2S are restricted to the Khuff. Increasing H2S is accompanied by a decrease in CO2 δ13C to been altered by thermochemical sulphate reduction (TSR). Paleozoic gas-condensates around the Ghawar structure commonly contain less than 15% N2. Nitrogen abundance here appears to be controlled by mixing between wet thermogenic gas and a high-N2 gas component of uncertain origin. Khuff gases in coastal and offshore fields contain less than 10% to as much as 40% N2 and often far less than 1% C2 hydrocarbons. In one field with incontrovertible petrographic evidence for TSR, C2 hydrocarbons are below detection limits and methane and carbon dioxide both have δ13C of approximately -22 ‰. N2, accounting for 25% of the gas, appears to have been enriched due to destruction of methane by TSR." @default.
- W2914042705 created "2019-02-21" @default.
- W2914042705 creator A5005904054 @default.
- W2914042705 creator A5027570360 @default.
- W2914042705 creator A5056155361 @default.
- W2914042705 date "2010-01-01" @default.
- W2914042705 modified "2023-09-26" @default.
- W2914042705 title "Geochemistry of Saudi Arabian Natural Gas" @default.
- W2914042705 doi "https://doi.org/10.3997/2214-4609-pdb.248.225" @default.
- W2914042705 hasPublicationYear "2010" @default.
- W2914042705 type Work @default.
- W2914042705 sameAs 2914042705 @default.
- W2914042705 citedByCount "0" @default.
- W2914042705 crossrefType "proceedings-article" @default.
- W2914042705 hasAuthorship W2914042705A5005904054 @default.
- W2914042705 hasAuthorship W2914042705A5027570360 @default.
- W2914042705 hasAuthorship W2914042705A5056155361 @default.
- W2914042705 hasConcept C107832698 @default.
- W2914042705 hasConcept C107872376 @default.
- W2914042705 hasConcept C109007969 @default.
- W2914042705 hasConcept C121332964 @default.
- W2914042705 hasConcept C126559015 @default.
- W2914042705 hasConcept C127313418 @default.
- W2914042705 hasConcept C13106087 @default.
- W2914042705 hasConcept C138170599 @default.
- W2914042705 hasConcept C151730666 @default.
- W2914042705 hasConcept C153127940 @default.
- W2914042705 hasConcept C156398188 @default.
- W2914042705 hasConcept C158787203 @default.
- W2914042705 hasConcept C17409809 @default.
- W2914042705 hasConcept C178790620 @default.
- W2914042705 hasConcept C185059815 @default.
- W2914042705 hasConcept C185592680 @default.
- W2914042705 hasConcept C22117777 @default.
- W2914042705 hasConcept C2779196632 @default.
- W2914042705 hasConcept C2780659211 @default.
- W2914042705 hasConcept C516920438 @default.
- W2914042705 hasConcept C59427239 @default.
- W2914042705 hasConcept C62520636 @default.
- W2914042705 hasConcept C6494504 @default.
- W2914042705 hasConcept C91442348 @default.
- W2914042705 hasConceptScore W2914042705C107832698 @default.
- W2914042705 hasConceptScore W2914042705C107872376 @default.
- W2914042705 hasConceptScore W2914042705C109007969 @default.
- W2914042705 hasConceptScore W2914042705C121332964 @default.
- W2914042705 hasConceptScore W2914042705C126559015 @default.
- W2914042705 hasConceptScore W2914042705C127313418 @default.
- W2914042705 hasConceptScore W2914042705C13106087 @default.
- W2914042705 hasConceptScore W2914042705C138170599 @default.
- W2914042705 hasConceptScore W2914042705C151730666 @default.
- W2914042705 hasConceptScore W2914042705C153127940 @default.
- W2914042705 hasConceptScore W2914042705C156398188 @default.
- W2914042705 hasConceptScore W2914042705C158787203 @default.
- W2914042705 hasConceptScore W2914042705C17409809 @default.
- W2914042705 hasConceptScore W2914042705C178790620 @default.
- W2914042705 hasConceptScore W2914042705C185059815 @default.
- W2914042705 hasConceptScore W2914042705C185592680 @default.
- W2914042705 hasConceptScore W2914042705C22117777 @default.
- W2914042705 hasConceptScore W2914042705C2779196632 @default.
- W2914042705 hasConceptScore W2914042705C2780659211 @default.
- W2914042705 hasConceptScore W2914042705C516920438 @default.
- W2914042705 hasConceptScore W2914042705C59427239 @default.
- W2914042705 hasConceptScore W2914042705C62520636 @default.
- W2914042705 hasConceptScore W2914042705C6494504 @default.
- W2914042705 hasConceptScore W2914042705C91442348 @default.
- W2914042705 hasLocation W29140427051 @default.
- W2914042705 hasOpenAccess W2914042705 @default.
- W2914042705 hasPrimaryLocation W29140427051 @default.
- W2914042705 hasRelatedWork W129459794 @default.
- W2914042705 hasRelatedWork W1989402614 @default.
- W2914042705 hasRelatedWork W203785699 @default.
- W2914042705 hasRelatedWork W2060254092 @default.
- W2914042705 hasRelatedWork W2090819452 @default.
- W2914042705 hasRelatedWork W2098978605 @default.
- W2914042705 hasRelatedWork W2101057883 @default.
- W2914042705 hasRelatedWork W2113760471 @default.
- W2914042705 hasRelatedWork W2116238454 @default.
- W2914042705 hasRelatedWork W2125787068 @default.
- W2914042705 hasRelatedWork W2267551328 @default.
- W2914042705 hasRelatedWork W2359822476 @default.
- W2914042705 hasRelatedWork W2364946908 @default.
- W2914042705 hasRelatedWork W2550997939 @default.
- W2914042705 hasRelatedWork W2811140414 @default.
- W2914042705 hasRelatedWork W2890601452 @default.
- W2914042705 hasRelatedWork W291157469 @default.
- W2914042705 hasRelatedWork W3145197084 @default.
- W2914042705 hasRelatedWork W3146411634 @default.
- W2914042705 hasRelatedWork W2735978912 @default.
- W2914042705 isParatext "false" @default.
- W2914042705 isRetracted "false" @default.
- W2914042705 magId "2914042705" @default.
- W2914042705 workType "article" @default.