Petrography and petrophysical well log interpretation for evaluation of sandstone reservoir quality in the Skalle well (Barents Sea)
39 thin sections and petrophysical log data from the Skalle well in the Hammerfest Basin, in the southwestern part of the Barents Sea, have been studied to interpret lithology, and diagenesis and their effect on the reservoir quality, and to compare reservoir properties of the different reservoir un...
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Institutt for geologi og bergteknikk
2013
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/236212 2023-05-15T15:38:43+02:00 Petrography and petrophysical well log interpretation for evaluation of sandstone reservoir quality in the Skalle well (Barents Sea) Javid, Sanaz Mørk, Mai Britt E. Norges teknisk-naturvitenskapelige universitet, Fakultet for ingeniørvitenskap og teknologi, Institutt for geologi og bergteknikk 2013 http://hdl.handle.net/11250/236212 eng eng Institutt for geologi og bergteknikk 657476 ntnudaim:9031 http://hdl.handle.net/11250/236212 87 Master thesis 2013 ftntnutrondheimi 2019-09-17T06:48:43Z 39 thin sections and petrophysical log data from the Skalle well in the Hammerfest Basin, in the southwestern part of the Barents Sea, have been studied to interpret lithology, and diagenesis and their effect on the reservoir quality, and to compare reservoir properties of the different reservoir units. Petrophysical log data have been calibrated for reservoir description in cases where core material is not available. The studied formations are comprised by the Stø, Fuglen, Hekkingen, Knurr, Kolje and the Lower Kolmule Formations. The Knurr and Kolje Formations have been identified and interpreted only by wire line logs, as core material was not available for those intervals.The Lower Kolmule Formation of sandstones of lithic greywacke composition, and the Stø Formation with sandstones of subarkosic arenite composition are considered as possible reservoir rocks. All the formations are water filled which is reflected by the low resistivity logs responses. The mature sandstones of the Stø Formation show high reservoir quality (high porosity and permeability) compared to the Lower Kolmule Formation. The Hekkingen Formation is a potential source rock for the Lower Kolmule Formation, as well as a seal (cap rock) for the Stø Formation. Cementation, dissolution, compaction, clay mineral authigenesis and stylolitization are the most significant diagenetic processes affecting the reservoir quality. Some other type of processes such as glauconitization and bioturbation are also common in the studied well. Master Thesis Barents Sea Hammerfest Hammerfest Basin NTNU Open Archive (Norwegian University of Science and Technology) Barents Sea Hekkingen ENVELOPE(17.832,17.832,69.597,69.597) Skalle ENVELOPE(7.683,7.683,62.800,62.800) Stø ENVELOPE(15.124,15.124,69.019,69.019) |
institution |
Open Polar |
collection |
NTNU Open Archive (Norwegian University of Science and Technology) |
op_collection_id |
ftntnutrondheimi |
language |
English |
description |
39 thin sections and petrophysical log data from the Skalle well in the Hammerfest Basin, in the southwestern part of the Barents Sea, have been studied to interpret lithology, and diagenesis and their effect on the reservoir quality, and to compare reservoir properties of the different reservoir units. Petrophysical log data have been calibrated for reservoir description in cases where core material is not available. The studied formations are comprised by the Stø, Fuglen, Hekkingen, Knurr, Kolje and the Lower Kolmule Formations. The Knurr and Kolje Formations have been identified and interpreted only by wire line logs, as core material was not available for those intervals.The Lower Kolmule Formation of sandstones of lithic greywacke composition, and the Stø Formation with sandstones of subarkosic arenite composition are considered as possible reservoir rocks. All the formations are water filled which is reflected by the low resistivity logs responses. The mature sandstones of the Stø Formation show high reservoir quality (high porosity and permeability) compared to the Lower Kolmule Formation. The Hekkingen Formation is a potential source rock for the Lower Kolmule Formation, as well as a seal (cap rock) for the Stø Formation. Cementation, dissolution, compaction, clay mineral authigenesis and stylolitization are the most significant diagenetic processes affecting the reservoir quality. Some other type of processes such as glauconitization and bioturbation are also common in the studied well. |
author2 |
Mørk, Mai Britt E. Norges teknisk-naturvitenskapelige universitet, Fakultet for ingeniørvitenskap og teknologi, Institutt for geologi og bergteknikk |
format |
Master Thesis |
author |
Javid, Sanaz |
spellingShingle |
Javid, Sanaz Petrography and petrophysical well log interpretation for evaluation of sandstone reservoir quality in the Skalle well (Barents Sea) |
author_facet |
Javid, Sanaz |
author_sort |
Javid, Sanaz |
title |
Petrography and petrophysical well log interpretation for evaluation of sandstone reservoir quality in the Skalle well (Barents Sea) |
title_short |
Petrography and petrophysical well log interpretation for evaluation of sandstone reservoir quality in the Skalle well (Barents Sea) |
title_full |
Petrography and petrophysical well log interpretation for evaluation of sandstone reservoir quality in the Skalle well (Barents Sea) |
title_fullStr |
Petrography and petrophysical well log interpretation for evaluation of sandstone reservoir quality in the Skalle well (Barents Sea) |
title_full_unstemmed |
Petrography and petrophysical well log interpretation for evaluation of sandstone reservoir quality in the Skalle well (Barents Sea) |
title_sort |
petrography and petrophysical well log interpretation for evaluation of sandstone reservoir quality in the skalle well (barents sea) |
publisher |
Institutt for geologi og bergteknikk |
publishDate |
2013 |
url |
http://hdl.handle.net/11250/236212 |
long_lat |
ENVELOPE(17.832,17.832,69.597,69.597) ENVELOPE(7.683,7.683,62.800,62.800) ENVELOPE(15.124,15.124,69.019,69.019) |
geographic |
Barents Sea Hekkingen Skalle Stø |
geographic_facet |
Barents Sea Hekkingen Skalle Stø |
genre |
Barents Sea Hammerfest Hammerfest Basin |
genre_facet |
Barents Sea Hammerfest Hammerfest Basin |
op_source |
87 |
op_relation |
657476 ntnudaim:9031 http://hdl.handle.net/11250/236212 |
_version_ |
1766369983161434112 |