Browsing Norwegian Geotechnical Institute (NGI) Digital Archive by Author "Jahren, Jens"
Now showing items 1-11 of 11
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Acoustic and petrophysical properties of mechanically compacted overconsolidated sands: part 1 – experimental results
Narongsirikul, Sirikarn; Mondol, Nazmul Haque; Jahren, Jens (Journal article; Peer reviewed, 2019)This paper part one is set out to lay primary observations of experimental compaction measurements to form the basis for rock physics modelling in paper part two. P‐ and S‐wave velocities and corresponding petrophysical ... -
Burial and exhumation history controls on shale compaction and thermal maturity along the Norwegian North Sea basin margin areas
Baig, Irfan; Faleide, Jan Inge; Mondol, Nazmul Haque; Jahren, Jens (Journal article; Peer reviewed, 2019)The North Sea area has been subjected to significant erosion and subsequent deposition of sediments in the basin margin and deeper basin areas, respectively, during the late Neogene. A large amount of Cretaceous-early ... -
Compaction, rock physics and rock properties of sandstones of the Stø Formation: Case study of five wells from the south-western Barents Sea, Norway
Ogebule, Oluwakemi Yetunde; Jahren, Jens; Mondol, Nazmul Haque (Peer reviewed; Journal article, 2020)Five wells containing Lower-Middle Jurassic sandstones of Stø Formation from the Hammerfest Basin (7120/9–1, 7121/7–1), the Ringvassøy-Loppa Fault Complex (7119/12–1, 7119/12–4) and the Troms-Finnmark Fault Complex (7019/1-1) ... -
Diagenetic related flat spots within the Paleogene Sotbakken Group in the vicinity of the Senja Ridge, Barents Sea
Fawad, Manzar; Mondol, MD Nazmul Haque; Baig, Irfan; Jahren, Jens (Peer reviewed; Journal article, 2019) -
Effect of diagenesis on pore pressures in fine-grained rocks in the Egersund Basin, Central North Sea
Kalani, Mohsen; Zadeh, Mohammad Koochak; Jahren, Jens; Mondol, Nazmul Haque; Faleide, Jan Inge (Journal article, 2015)Pore pressure in fine-grained rocks is important with respect to drilling problems such as kicks, blowouts, borehole instability, stuck pipe and lost circulation. In this study, a succession of overpressured, fine-grained, ... -
Effects of stress reduction on geomechanical and acoustic relationship of overconsolidated sands
Narongsirikul, Sirikarn; Mondol, Nazmul Haque; Jahren, Jens (Peer reviewed; Journal article, 2019)Relationship between different geomechanical and acoustic properties measured from seven laboratory tested unconsolidated natural sands with different mineralogical compositions and textures were presented. The samples ... -
Influence of Depositional and Diagenetic Processes on Caprock Properties of CO2 Storage Sites in the Northern North Sea, Offshore Norway
Rahman, Md Jamilur; Fawad, Manzar; Jahren, Jens; Mondol, Nazmul Haque (Peer reviewed; Journal article, 2022) -
Potential Triassic and Jurassic CO2 Storage Reservoirs in the Skagerrak-Kattegat Area
Baig, Irfan; Aagaard, Per; Sassier, Caroline; Faleide, Jan Inge; Jahren, Jens; Gabrielsen, Roy H.; Fawad, Manzar; Nielsen, Lars Henrik; Kristensen, Lars; Bergmo, Per Eirik Strand (Journal article, 2013)Regional assessment studies for CO2 storage plays have been carried out in the Norwegian-Danish Basin of the Central North Sea and in the Skagerrak-Kattegat area. The development of the reservoir models is a part of an ... -
Reservoir assessment of Middle Jurassic sandstone-dominated formations in the Egersund Basin and Ling Depression, eastern Central North Sea
Hansen, Jørgen André; Mondol, Nazmul Haque; Jahren, Jens; Tsikalas, Filippos (Peer reviewed; Journal article, 2019)Reservoir quality assessment was conducted from petrophysical analysis and rock physics diagnostics on 15 wells penetrating Middle Jurassic sandstone reservoir formations in different regions of the eastern Central North ... -
Top seal assessment of Drake Formation shales for CO<inf>2</inf> storage in the Horda Platform area, offshore Norway
Rahman, Md Jamilur; Fawad, Manzar; Jahren, Jens; Mondol, Nazmul Haque (Peer reviewed; Journal article, 2022) -
Velocity anisotropy of upper jurassic organic-rich shales, Norwegian continental shelf
Koochak Zadeh, Mohammad; Mondol, Nazmul Haque; Jahren, Jens (Peer reviewed; Journal article, 2017)This study investigates the seismic velocity anisotropy of two organic-rich shales from the Norwegian Continental Shelf. The tested organic-rich shale samples were from the Upper Jurassic Draupne and Hekkingen formations ...