Blar i Department of Petroleum Engineering på emneord "VDP::Technology: 500::Rock and petroleum disciplines: 510::Petroleum engineering: 512"
Viser treff 201-220 av 366
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Investigations of a drilling operation by using a simplified gas-liquid mathematical model
(Masteroppgave/UIS-TN-IPT/2014;, Master thesis, 2014-05-22)There was a strong wish to investigate the physics of fluid flow involved in drilling operations where nitrogen injection is used to lower the hydrostatic pressure. This work is based on a reduced version of the full ... -
Kinetics of gas hydrate nucleation and growth
(PhD thesis UiS;136, Doctoral thesis, 2011-09-22) -
Laboratory evaluation of sodium silicate for zonal isolation
(Masteroppgave/UIS-TN-IPT/2011;, Master thesis, 2011)A common problem for maturing oil fields is excessive water production. Ultimate oil recovery could be increased considerably by implementing an appropriate water production management. Solutions for managing excess water ... -
Late life field material balance analysis – Statfjord Fm.
(Masteroppgave/UIS-TN-IPT/2011;, Master thesis, 2012)Recently, it has become apparent that the prediction of the Statfjord reservoir potential determined from the ECLIPSE simulator differs from the actual formation performance, i.e. simulated fluid production results are too ... -
Log typing and electro-facies interpretation in Ekofisk field
(Masteroppgave/UIS-TN-IPT/2012;, Master thesis, 2012)Recognition of the dense zones in Ekofisk field is clearly observed from well logging through a specific peak in the neutron-density log. These zones appear to be intercalated in porous clean chalks in the middle part of ... -
Lost circulation experimental study in oil based mud and analyzing experimental data
(Masteroppgave/UIS-TN-IPT/2012;, Master thesis, 2012)The problem of lost circulation have for a long time occurred during the drilling operation. During the drilling through induced and natural fractures, huge drilling fluid losses lead to the higher operational expenses. ... -
Low salinity effect after sea water flooding in sandstone reservoirs
(Masteroppgave/UIS-TN-IPT/2012;, Master thesis, 2012)Clays are the main wetting minerals and have permanently negative surface charges. The negative charges must be balanced by; active cat ions, polar components or H+. pH changes is observed in the effluent by flooding in ... -
LWSF simulation at larger scale
(Masteroppgave/UIS-TN-IPT/2012;, Master thesis, 2012)Low salinity water flooding is a field of science that is new and need more research to find a definite theory of what happens. There have not been done many modeling studies on this field. The objective of my thesis ... -
Main pump start-up pressure limitation control system when using thixotropic drilling fluids
(Masteroppgave/UIS-TN-IPT/2013;, Master thesis, 2013-07-01)Everyday drilling operations in the Norwegian Continental Shelf become more challenged. They include drilling of highly inclined long wells in depleted reservoirs within narrow geo-pressure margins. In addition, drilling ... -
Making a simple steady state model more appropriate for underbalanced drilling
(Masteroppgave/UIS-TN-IPT/2012;, Master thesis, 2012)In an underbalanced operation the well needs to be kept in underbalanced conditions at all time. That is, from the beginning to the end of the drilling process. This is necessary to keep well from formation damage and ... -
Managed pressure drilling from floaters
(Masteroppgave/UIS-TN-IPT/2013;, Master thesis, 2013-06-05)Drilling in challenging environments with different drilling hazards cause a lot of non-productive time (NPT), ie time where the rig is not drilling. Much of the challenging environments are in water depth demanding the ... -
Managed pressure drilling from floaters: feasibility studies for applying managed pressure drilling from a floater on the Skarv/Idun field on the Norwegian Continental Shelf by PGNiG Norway AS
(Masteroppgave/UIS-TN-IPT/2011;, Master thesis, 2011)Managed Pressure Drilling (MPD) is a relatively young technology that has improved some old ideas of Underbalanced Drilling (UBD). According to the IADC, MPD is an “adaptive process used to precisely control the annular ... -
Management of well barriers and challenges with regards to obtaining well integrity
(Masteroppgave/UIS-TN-IPT/2012;, Master thesis, 2012)Well integrity is a result of technical, operational and organizational barriers applied, with the intention to contain and control the reservoir fluid and well pressures. Failure to obtain and maintain adequate barriers ... -
Materials for optimized P&A performance: Potential utilization of geopolymers
(PhD thesis UiS;292, Doctoral thesis, 2016-05)When a well reaches the end of its life-cycle, it must be permanently plugged and abandoned. Plug and abandonment (P&A) can easily contribute with 25% of the total drilling costs of exploration wells offshore Norway. The ... -
Mechanism of primary and secondary oil flooding for recovery from chalk by low
(Master thesis, 2014-06-16)This research work is performed with the intention to bring the contribution in the ongoing discussion of implementing the low salinity brines as the injection fluid in carbonate reservoirs. The work contains theoretical ... -
Mechanism of primary and secondary oil flooding for recovery from sandstone by low salinity water
(Master thesis, 2014-06-16)Low salinity water flooding (LSW) as an enhanced oil recovery (EOR) method has been discussed by many researchers, but consistent approved mechanism is still not found. The main reason of lack of clear understanding of the ... -
Mechanistic study of CO2 flooding of asphaltenic oil reservoir
(Masteroppgave/UIS-TN-IPT/2011;, Master thesis, 2011)Carbon dioxide (CO2) injection is one of the most common enhanced oil recovery (EOR) techniques to increase the oil production. CO2 is injected into the reservoir to displace the residual oil left and mobilize the oil to ... -
Method selection study of future plug and abandonment at Gjøa field
(Masteroppgave/UIS-TN-IPT/2016;, Master thesis, 2016-06)On the Norwegian Continental Shelf (NCS) there will be a wave of subsea and platform wells that will eventually need to be plugged and abandoned (P&A’d) in a safe and efficient manner. The well abandonment phase is the ... -
Modeling of dirty sands and clay zones with poor production characteristics
(Masteroppgave/UIS-TN-IPT/2011;, Master thesis, 2011)The Statfjord field is one of the oldest and largest oil and gas producing fields on the Norwegian continental shelf. It is currently at its late life production period with pressure depletion as the main production ... -
Modelling of Co-Current Spontaneous Imbibition – Improved Understanding of Reservoir Flow Physics
(Masteroppgave/UIS-TN-IPT/2017;, Master thesis, 2017-06-16)Study of recovery mechanism in naturally fractured reservoir (NFRs), such as spontaneous imbibition has high interest in the oil industry to enhance oil production. Many studies of spontaneous imbibition such as counter-current ...