Blar i Department of Petroleum Engineering på emneord "boreteknologi"
Viser treff 21-40 av 174
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Analysis of the factors influencing the annulus pressure far away from downhole pressure measurements
(Masteroppgave/UIS-TN-IPT/2013;, Master thesis, 2013-06-14)In any drilling operation, it is important to maintain the annulus pressure within the geo-pressure margins (collapse and pore pressure on one side and fracturing pressure on the other side). The downhole pressure management ... -
Application of thermo-mechanically treated drill cuttings as an alternative to bentonite in spud muds
(Masteroppgave/UIS-TN-IPT/2014;, Master thesis, 2014-05-22)Drill cuttings recovered after drilling with OBM today are treated and deposited at onshore facilities. The TWMA Company offers a new technology, which recovers drilled subsurface materials together with oil and water ... -
Applied well integrity
(Masteroppgave/UIS-TN-IPT/2014;, Master thesis, 2014-06-16)Extended reach drilling is the result of industry focus to exploit fields efficiently with a minimum financial and environmental impact. Two of the ERD pioneer fields are Wytch Farm in UK and Statfjord on the Norwegian ... -
Applying dual gradient drilling in complex wells, challenges and benefits
(Masteroppgave/UIS-TN-IPT/2013;, Master thesis, 2013-06)Dual gradient drilling is a manage pressure drilling technique that may extend viability of deep and ultra- deep water drilling and production, in a manner that may be classified as safe or safer, than what can be achieved ... -
Assessment of expandable liner for the Skarv field
(Masteroppgave/UIS-TN-IPT/2012;, Master thesis, 2012)BP’s Skarv field is a stacked three layer reservoir structure. The field development plan involves drilling deviated and horizontal wells into the uppermost reservoir layer, Garn, and the lowermost reservoir layer, Tilje. ... -
Automatic adjustment of drilling fluid properties
(Masteroppgave/UIS-TN-IPT/2013;, Master thesis, 2013)The primer objective of this thesis was to implement and test, in the automated drilling hydraulics laboratory at the University of Stavanger, a system for automatic adjustment of viscosity of a fluid. The fluid used to ... -
Automatic detection of reservoir influx in conventional drilling, managed pressure drilling and dual gradient drilling
(Masteroppgave/UIS-TN-IPT/2012;, Master thesis, 2012)Reservoir influxes, or kicks, are well control incidents with the potential of severe consequences to health, safety and the environment, as well as economics. Although the main focus will always be to prevent such incidents ... -
Automatic evaluation of drilling fluid properties
(Masteroppgave/UIS-TN-IPT/2012;, Master thesis, 2012-06-12)This thesis is structured in two main parts. First part covers the fundamental role of drilling fluid in the drilling process. It provides a description of the mud circulating system for conventional drilling operations, ... -
Automatic evaluation of drilling fluid properties during conventional and MPD operations
(Masteroppgave/UIS-TN-IPT/2013;, Master thesis, 2013-07-12)The primary barrier to maintain well integrity in drilling operations is the drilling fluid. With the current routines of evaluating the fluid properties and the increasingly use of automated and advanced drilling ... -
Calculation of forces acting on a rotary steerable liner drilling system
(Masteroppgave/UIS-TN-IPT/2009;, Master thesis, 2009)Torque and drag calculations performed on a new liner drilling design indicate that a very high grade drillpipe, up to S-135, is required in order to satisfy the requirements which both axial and torsional loading place ... -
Casing design evaluation for water injectors at Valhall
(Masteroppgave/UIS-TN-IPT/2009;, Master thesis, 2009)The Valhall field is the largest field that BP operates on the Norwegian Continental Shelf, and is one of the most well known high porosity chalk fields in the Southern part of the North Sea. During many years of oil ... -
Cement Plugging of Highly Deviated Wells Displaced in Oil Based Mud
(Masteroppgave/UIS-TN-IPT/2016;, Master thesis, 2016-06-15)When an oil or gas well is not profitable to produce from anymore, it needs to be temporarily or permanent plugged and abandoned (P&A). These operations are required in order to leave a well secured with sufficient barriers ... -
Centralization of casings in wells
(Masteroppgave/UIS-TN-IPT/2014;, Master thesis, 2014-06-03)Centralization of casings is very important in order to ensure a high quality well. Poor centralization of casing is often the main reason for bad cement jobs, which forces the operators to perform remedial cementing. This ... -
Challenges related to drilling further north in the Norwegian Arctic
(Masteroppgave/UIS-TN-IPT/2015;, Master thesis, 2015-06-15)The world’s energy demands are increasing rapidly and the oil & gas industry is forced to search for new acreages for exploration and production. The Arctic is expected to contain a vast amount of the remaining undiscovered ... -
Challenges with Arctic and harsh environment exploration and production
(Masteroppgave/UIS-TN-IPT/2014;, Master thesis, 2014-06-15)As the world energy needs rises combined with declining reserves in producing hydrocarbon field’s new areas for exploration is needed. A study performed by the U.S. Geological Survey in 2008 estimated that 22% of the ... -
Characterization and performance of 70/30 and 90/10 OBM mud systems
(Masteroppgave/UIS-TN-IPT/2014;, Master thesis, 2014-06-16)Drilling fluid is an essential part of drilling operation. The main functions of the drilling fluid are to transport cutting, to maintain well pressure and cooling formation and drill-bit. The detail knowledge of drilling ... -
Characterization of flow regime of highly viscous oils using conventional ICD and BECH AICD
(Masteroppgave/UIS-TN-IPT/2014;, Master thesis, 2014-06-13)Horizontal wells are currently very common for oil production, because they can increase its efficiency. An offshore platform for instance, may have several wells all aiming to produce from a common reservoir. In addition, ... -
Clean-up of horizontal well using ICD
(Masteroppgave/UIS-TN-IPT/2016;, Master thesis, 2016-06-13)An efficient clean-up process is a key factor determining horizontal wells productivity. Numerous factors cause formation damage around wellbore vicinity and numerous treatments have been developed to mitigate each damaging ... -
Consequences of small leaks in wellhead system
(Masteroppgave/UIS-TN-IPT/2013;, Master thesis, 2013)An increased frequency of minor gas leakages from seals in the wellhead (WH) area have been detected and recently given an increased focus among companies on the Norwegian continental shelf. Among others have Statoil and ... -
Controller design for back pressure Managed Pressure Drilling when using oil based mud in long wells.
(Masteroppgave/UIS-TN-IPT/2017;, Master thesis, 2017-06-14)In all drilling operations, downhole pressure requires to be closely monitored and measured at all times. Mainly, drilling fluid is used to balance the formation pressure downhole, a pressure that is created so that formation ...