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Volume 12 Issue 2
Jun.  2001
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Gong Zaisheng, Yang Jiaming, Hu Jianwu, Hao Fang. Development of Diapirs and Accumulation of Natural Gases in Yinggehai Basin. Journal of Earth Science, 2001, 12(2).
Citation: Gong Zaisheng, Yang Jiaming, Hu Jianwu, Hao Fang. Development of Diapirs and Accumulation of Natural Gases in Yinggehai Basin. Journal of Earth Science, 2001, 12(2).

Development of Diapirs and Accumulation of Natural Gases in Yinggehai Basin

  • Received Date: 2018-07-15
  • Rev Recd Date: 2018-07-15
  • Publish Date: 2018-07-15
  • OverpressuredevelopedthroughoutmostoftheYinggehaibasin.Theburialdepthtotopoverpressurevariedfromabout1600mto4500m,withtheshallowesttopoverpressureoccurringinthedepocenter.Themaincauseoftheoverpressurewasdisequilibriumcompactionresultingfromrapidsedimentationoffine~grainedsediments.Theoverpressurewasstrengthenedbytheretentionoffluidsincludinggasesduetolackoffaultsbeforediapirdevelopment.ThediapirismintheYinggehaibasinwasacombinedresultofthestrongoverpressureandthetensilestressfieldcausedbytheright~lateralslipoftheboundary~fault.Thediapirism,aproductofthemovementofoverpressuredfluidsandplasticshales,shapedtheverticalconduitsfromsourcetotrapsthatwouldbeabsentwithoutoverpressuredfluidrelease.Naturalgasaccumulationintrapsinthediapirstructurezoneswasalsointermittent,whichcanbeinferredfromtheinter~reservoircompositionalheterogeneity,transientthermaleffectoffluidflowandmigrationfractionation.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Development of Diapirs and Accumulation of Natural Gases in Yinggehai Basin

Abstract: OverpressuredevelopedthroughoutmostoftheYinggehaibasin.Theburialdepthtotopoverpressurevariedfromabout1600mto4500m,withtheshallowesttopoverpressureoccurringinthedepocenter.Themaincauseoftheoverpressurewasdisequilibriumcompactionresultingfromrapidsedimentationoffine~grainedsediments.Theoverpressurewasstrengthenedbytheretentionoffluidsincludinggasesduetolackoffaultsbeforediapirdevelopment.ThediapirismintheYinggehaibasinwasacombinedresultofthestrongoverpressureandthetensilestressfieldcausedbytheright~lateralslipoftheboundary~fault.Thediapirism,aproductofthemovementofoverpressuredfluidsandplasticshales,shapedtheverticalconduitsfromsourcetotrapsthatwouldbeabsentwithoutoverpressuredfluidrelease.Naturalgasaccumulationintrapsinthediapirstructurezoneswasalsointermittent,whichcanbeinferredfromtheinter~reservoircompositionalheterogeneity,transientthermaleffectoffluidflowandmigrationfractionation.

Gong Zaisheng, Yang Jiaming, Hu Jianwu, Hao Fang. Development of Diapirs and Accumulation of Natural Gases in Yinggehai Basin. Journal of Earth Science, 2001, 12(2).
Citation: Gong Zaisheng, Yang Jiaming, Hu Jianwu, Hao Fang. Development of Diapirs and Accumulation of Natural Gases in Yinggehai Basin. Journal of Earth Science, 2001, 12(2).

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