Reservoir characterization of the Lower Cretaceous clastic wedges in the southwestern Barents Sea using seismic analysis and rock physics diagnostic
Master's thesis in Petroleum geosciences engineering The southwestern Barents Sea is an underexplored area of the Norwegian continental shelf, with a few discoveries in Triassic and Jurassic reservoirs. Recently drilled exploration wells on the Loppa High and the surrounding margins have encoun...
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ftunivstavanger:oai:uis.brage.unit.no:11250/2414775 2023-06-11T04:10:33+02:00 Reservoir characterization of the Lower Cretaceous clastic wedges in the southwestern Barents Sea using seismic analysis and rock physics diagnostic Iqbal, Javed Escalona, Alejandro Barents sea 2016-06-17 application/pdf http://hdl.handle.net/11250/2414775 eng eng University of Stavanger, Norway Masteroppgave/UIS-TN-IPT/2016; http://hdl.handle.net/11250/2414775 petroleumsteknologi petroleumsgeologi petroleum geosciences engineering seismic analysis rock physics diagnostics well log facies VDP::Technology: 500::Rock and petroleum disciplines: 510::Geological engineering: 513 Master thesis 2016 ftunivstavanger 2023-05-29T16:02:34Z Master's thesis in Petroleum geosciences engineering The southwestern Barents Sea is an underexplored area of the Norwegian continental shelf, with a few discoveries in Triassic and Jurassic reservoirs. Recently drilled exploration wells on the Loppa High and the surrounding margins have encountered hydrocarbon bearing clastic wedges in Lower Cretaceous strata. Previous studies have proposed two different depositional environments for these wedges: 1) deep marine fans and, 2) shallow marine transition with tidal influence. Consequently, further studies are required for better understanding of the depositional environment and the reservoir properties of the wedges. This study focusses on reservoir characterization of the Lower Cretaceous clastic wedges along the southern margin of the Loppa High in the Hammerfest Basin. The main objectives of this study are: 1) to define the depositional environment using well logs and seismic data and, 2) to investigate the reservoir properties using rock physics diagnostic. The dataset includes nine wells and four 3D seismic cubes which have been used to define the depositional environment of the wedges. Ten seismic facies (SF1, SF2 …SF10) have been interpreted on the basis of seismic character and gamma-ray log response. Five types of the wedges (Type 1, Type 2…Type 5) have been identified on the basis of seismic facies whereas Type 1 and 4 also have well logs to support the interpretation. Seismic derived attributes such as variance, chaos and sweetness reveal the lobate shape fan delta (Type 4 wedge) and fan shaped submarine fans (Type 3 and 5 wedges). Sweetness attribute differentiates the fan delta and submarine fans based on their sand and shale content which further delimit these depositional bodies. Depending upon the location of the wedges in the basin, the depositional environment ranges from transitional shallow marine to deep marine. The shallow marine environments include coastal/delta plain, fan delta, land slope aprons, and shelf canyons which are restricted to ... Master Thesis Barents Sea Hammerfest Hammerfest Basin Loppa University of Stavanger: UiS Brage Barents Sea Loppa ENVELOPE(22.351,22.351,70.240,70.240) |
institution |
Open Polar |
collection |
University of Stavanger: UiS Brage |
op_collection_id |
ftunivstavanger |
language |
English |
topic |
petroleumsteknologi petroleumsgeologi petroleum geosciences engineering seismic analysis rock physics diagnostics well log facies VDP::Technology: 500::Rock and petroleum disciplines: 510::Geological engineering: 513 |
spellingShingle |
petroleumsteknologi petroleumsgeologi petroleum geosciences engineering seismic analysis rock physics diagnostics well log facies VDP::Technology: 500::Rock and petroleum disciplines: 510::Geological engineering: 513 Iqbal, Javed Reservoir characterization of the Lower Cretaceous clastic wedges in the southwestern Barents Sea using seismic analysis and rock physics diagnostic |
topic_facet |
petroleumsteknologi petroleumsgeologi petroleum geosciences engineering seismic analysis rock physics diagnostics well log facies VDP::Technology: 500::Rock and petroleum disciplines: 510::Geological engineering: 513 |
description |
Master's thesis in Petroleum geosciences engineering The southwestern Barents Sea is an underexplored area of the Norwegian continental shelf, with a few discoveries in Triassic and Jurassic reservoirs. Recently drilled exploration wells on the Loppa High and the surrounding margins have encountered hydrocarbon bearing clastic wedges in Lower Cretaceous strata. Previous studies have proposed two different depositional environments for these wedges: 1) deep marine fans and, 2) shallow marine transition with tidal influence. Consequently, further studies are required for better understanding of the depositional environment and the reservoir properties of the wedges. This study focusses on reservoir characterization of the Lower Cretaceous clastic wedges along the southern margin of the Loppa High in the Hammerfest Basin. The main objectives of this study are: 1) to define the depositional environment using well logs and seismic data and, 2) to investigate the reservoir properties using rock physics diagnostic. The dataset includes nine wells and four 3D seismic cubes which have been used to define the depositional environment of the wedges. Ten seismic facies (SF1, SF2 …SF10) have been interpreted on the basis of seismic character and gamma-ray log response. Five types of the wedges (Type 1, Type 2…Type 5) have been identified on the basis of seismic facies whereas Type 1 and 4 also have well logs to support the interpretation. Seismic derived attributes such as variance, chaos and sweetness reveal the lobate shape fan delta (Type 4 wedge) and fan shaped submarine fans (Type 3 and 5 wedges). Sweetness attribute differentiates the fan delta and submarine fans based on their sand and shale content which further delimit these depositional bodies. Depending upon the location of the wedges in the basin, the depositional environment ranges from transitional shallow marine to deep marine. The shallow marine environments include coastal/delta plain, fan delta, land slope aprons, and shelf canyons which are restricted to ... |
author2 |
Escalona, Alejandro |
format |
Master Thesis |
author |
Iqbal, Javed |
author_facet |
Iqbal, Javed |
author_sort |
Iqbal, Javed |
title |
Reservoir characterization of the Lower Cretaceous clastic wedges in the southwestern Barents Sea using seismic analysis and rock physics diagnostic |
title_short |
Reservoir characterization of the Lower Cretaceous clastic wedges in the southwestern Barents Sea using seismic analysis and rock physics diagnostic |
title_full |
Reservoir characterization of the Lower Cretaceous clastic wedges in the southwestern Barents Sea using seismic analysis and rock physics diagnostic |
title_fullStr |
Reservoir characterization of the Lower Cretaceous clastic wedges in the southwestern Barents Sea using seismic analysis and rock physics diagnostic |
title_full_unstemmed |
Reservoir characterization of the Lower Cretaceous clastic wedges in the southwestern Barents Sea using seismic analysis and rock physics diagnostic |
title_sort |
reservoir characterization of the lower cretaceous clastic wedges in the southwestern barents sea using seismic analysis and rock physics diagnostic |
publisher |
University of Stavanger, Norway |
publishDate |
2016 |
url |
http://hdl.handle.net/11250/2414775 |
op_coverage |
Barents sea |
long_lat |
ENVELOPE(22.351,22.351,70.240,70.240) |
geographic |
Barents Sea Loppa |
geographic_facet |
Barents Sea Loppa |
genre |
Barents Sea Hammerfest Hammerfest Basin Loppa |
genre_facet |
Barents Sea Hammerfest Hammerfest Basin Loppa |
op_relation |
Masteroppgave/UIS-TN-IPT/2016; http://hdl.handle.net/11250/2414775 |
_version_ |
1768385008375955456 |