Matches in SemOpenAlex for { <https://semopenalex.org/work/W2078652148> ?p ?o ?g. }
Showing items 1 to 76 of
76
with 100 items per page.
- W2078652148 endingPage "1895" @default.
- W2078652148 startingPage "1886" @default.
- W2078652148 abstract "The amplitude‐versus‐offset (AVO) method has been shown to indicate the presence of gas sands if the reflection amplitude from the seal/reservoir‐sand interface, measured in a common midpoint (CMP) gather, increases rapidly with increasing shot‐to‐geophone distance (or offset). However, in a few instances, it has been observed that the seismic reflection amplitude does not increase with offset and may even decrease if there is widespread gas leakage above the hydrocarbon reservoir causing partial gas saturation in the overburden sediments. Gas‐charged sediments are known to attenuate seismic energy. Depending on the size and shape of this gas leakage zone, there may be higher attenuation of seismic amplitudes with increasing offset. We present one such case that involves a prominent “bright‐spot” amplitude anomaly corresponding to a 56‐ft‐thick (17 m‐thick) gas sand in the Gulf of Mexico slope. The reflection amplitude for the sand top was found to decrease with increasing offset. There is also evidence of gas leakage into the sediments above the reservoir. Color amplitude displays of the seismic section show a low‐amplitude diffused zone above the bright‐spot amplitude anomaly, which suggests gas leakage. Further evidence of gas leakage can be inferred from the significant gas content (including heavier hydrocarbons) observed in the mud log. Gas leakage is also confirmed by gather modeling in which the effects of leakage‐caused attenuation are accounted for in matching the variation of seismic amplitude with offset." @default.
- W2078652148 created "2016-06-24" @default.
- W2078652148 creator A5059374826 @default.
- W2078652148 creator A5065724130 @default.
- W2078652148 date "1991-11-01" @default.
- W2078652148 modified "2023-09-27" @default.
- W2078652148 title "Case study: The importance of gas leakage in interpreting amplitude‐versus‐offset (AVO) analysis" @default.
- W2078652148 doi "https://doi.org/10.1190/1.1443000" @default.
- W2078652148 hasPublicationYear "1991" @default.
- W2078652148 type Work @default.
- W2078652148 sameAs 2078652148 @default.
- W2078652148 citedByCount "1" @default.
- W2078652148 crossrefType "journal-article" @default.
- W2078652148 hasAuthorship W2078652148A5059374826 @default.
- W2078652148 hasAuthorship W2078652148A5065724130 @default.
- W2078652148 hasConcept C114614502 @default.
- W2078652148 hasConcept C120665830 @default.
- W2078652148 hasConcept C121332964 @default.
- W2078652148 hasConcept C127313418 @default.
- W2078652148 hasConcept C139719470 @default.
- W2078652148 hasConcept C162324750 @default.
- W2078652148 hasConcept C165205528 @default.
- W2078652148 hasConcept C175291020 @default.
- W2078652148 hasConcept C180205008 @default.
- W2078652148 hasConcept C184652730 @default.
- W2078652148 hasConcept C187320778 @default.
- W2078652148 hasConcept C199289684 @default.
- W2078652148 hasConcept C199360897 @default.
- W2078652148 hasConcept C2777042071 @default.
- W2078652148 hasConcept C2777201227 @default.
- W2078652148 hasConcept C33923547 @default.
- W2078652148 hasConcept C41008148 @default.
- W2078652148 hasConcept C5900021 @default.
- W2078652148 hasConcept C59000536 @default.
- W2078652148 hasConcept C9930424 @default.
- W2078652148 hasConceptScore W2078652148C114614502 @default.
- W2078652148 hasConceptScore W2078652148C120665830 @default.
- W2078652148 hasConceptScore W2078652148C121332964 @default.
- W2078652148 hasConceptScore W2078652148C127313418 @default.
- W2078652148 hasConceptScore W2078652148C139719470 @default.
- W2078652148 hasConceptScore W2078652148C162324750 @default.
- W2078652148 hasConceptScore W2078652148C165205528 @default.
- W2078652148 hasConceptScore W2078652148C175291020 @default.
- W2078652148 hasConceptScore W2078652148C180205008 @default.
- W2078652148 hasConceptScore W2078652148C184652730 @default.
- W2078652148 hasConceptScore W2078652148C187320778 @default.
- W2078652148 hasConceptScore W2078652148C199289684 @default.
- W2078652148 hasConceptScore W2078652148C199360897 @default.
- W2078652148 hasConceptScore W2078652148C2777042071 @default.
- W2078652148 hasConceptScore W2078652148C2777201227 @default.
- W2078652148 hasConceptScore W2078652148C33923547 @default.
- W2078652148 hasConceptScore W2078652148C41008148 @default.
- W2078652148 hasConceptScore W2078652148C5900021 @default.
- W2078652148 hasConceptScore W2078652148C59000536 @default.
- W2078652148 hasConceptScore W2078652148C9930424 @default.
- W2078652148 hasIssue "11" @default.
- W2078652148 hasLocation W20786521481 @default.
- W2078652148 hasOpenAccess W2078652148 @default.
- W2078652148 hasPrimaryLocation W20786521481 @default.
- W2078652148 hasRelatedWork W1992747814 @default.
- W2078652148 hasRelatedWork W2000676266 @default.
- W2078652148 hasRelatedWork W2019287871 @default.
- W2078652148 hasRelatedWork W2106207718 @default.
- W2078652148 hasRelatedWork W2157397269 @default.
- W2078652148 hasRelatedWork W2316906156 @default.
- W2078652148 hasRelatedWork W2321266251 @default.
- W2078652148 hasRelatedWork W2334669207 @default.
- W2078652148 hasRelatedWork W3095393424 @default.
- W2078652148 hasRelatedWork W4224289824 @default.
- W2078652148 hasVolume "56" @default.
- W2078652148 isParatext "false" @default.
- W2078652148 isRetracted "false" @default.
- W2078652148 magId "2078652148" @default.
- W2078652148 workType "article" @default.