Basement High - Related Cretaceous Submarine Fans Growth in Southwestern Barents Sea
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Deep marine sandstone deposit is one of favorable hydrocarbon reservoir in Norwe-gian Basin. However, it remains not being fully understood due to its variation interm of sedimentation process, distribution, and reservoir quality. Plenty of subma-rine fans system models were built as solutions to capture better insight regardingthose challenges. However, the models are general version of real life example, thusit needs to be adjusted for each deep marine system. This study took place insouthern Loppa High area where some of deep marine deposit reservoir were drilledand struck numerous failures, even though petroleum system is working on otherplays in nearby areas. Possible causing factor is particular geological setting relatedto multiple uplift processes occurred in drainage source area of Loppa High. Thegoals of this study is to understand how deep marine deposit, in the form of sub-marine fans, growth in such distinctive geological setting. The result will be usedin building submarine fans system model which later helps us conceive hydrocarbonprospectivity in the surrounding deep marine system.In building the model, each of component dening the submarine fans need to be de-scribed one at a time. Straightforward and visible components including geometry,lateral distribution, formation thickness until accumulation location of the fans aresome of the examples. Meanwhile, Any other components derived from combinationof seismic and well data analysis, are paleo depositional environment, source condi-tion, type of sediment transportation system, basin paleomorpholgy, slope gradient,number of feeder system, sedimentation mechanism, number of feeder system, andnatural shape when the submarine fans was deposited initially. Combining all ofavailable components, it is plausible to create new submarine fans model systemparticularly for Southeastern Loppa High area.The result is model where most of the characteristics resemble closely to sand -rich submarine fans, with some notable variation in several aspects. Multiple feedersystem which conceptually related to slope apron and no direct lateral continuationbetween the end of conduit exit mouth and proximal fans body, are the signicantvariation which can be found on the model. Signicant founding comes from presentmorphology of the fans, which is tilting toward updip direction. This current con-dition accommodate seal failure to develop and increase the risk of hydrocarbonprospectivity.