Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Olav Urdahl"'
Publikováno v:
SPE Production & Facilities. 19:161-167
Abstract The novel technique of applying electrical heating to prevent hydrate formation in multiphase pipelines has been successfully applied on the Norwegian Continental Shelf. The first pipelines where direct electrical heating (DEH) is applied ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c1a8d4c1f8ea39c7e637456eec0cab3
https://doi.org/10.2118/85015-pa
https://doi.org/10.2118/85015-pa
Autor:
Olav Urdahl, Ingbjorn Refsdal
Publikováno v:
Day 2 Tue, November 11, 2014.
In today's business environment, technical integrity management is fundamental in order to meet expectations from stakeholders, both internally and externally. The term technical integrity is in Statoil defined as "A system or a facility's ability to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::614842571ae1facda10904174aa6c6e4
https://doi.org/10.2118/171813-ms
https://doi.org/10.2118/171813-ms
Publikováno v:
SPE Production & Facilities. 16:4-8
Summary The demand for more cost-effective field developments has led to a substantial focus on separation equipment that reduces weight and deck space. Of particular concern are field developments with subsea production templates and multiphase tran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0e13a9697a88506a5cec27e2963500f
https://doi.org/10.2118/69196-pa
https://doi.org/10.2118/69196-pa
Publikováno v:
Journal of Electrostatics. :135-140
The destabilisation of water-in-oil emulsions is an important industrial process and is often the rate-determining step in the dewatering and desalting of crude oils. In this study the influence of a 50Hz sinusoidal electric field on flowing water-in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::428480bf7df6ca36c3073e0c1001b8c8
https://doi.org/10.1016/s0304-3886(97)00027-2
https://doi.org/10.1016/s0304-3886(97)00027-2
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. :225-232
Interfacially active components (asphaltenes and resins) have been extracted from North Sea crude oils and aged at 50°C. Model water-in-oil emulsions have been stabilized by these compounds in different amounts and ratios. The stability of these emu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99e1ff470c4ed723676e491e91a0c9d6
https://doi.org/10.1016/s0927-7757(97)03963-0
https://doi.org/10.1016/s0927-7757(97)03963-0
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. :623-634
The influence of emulsion viscosity on multiphase flow calculations is discussed and illustrated with a simple example. Existing methods for calculation and determination of the effective viscosity of a real hydrocarbon/water system under realistic f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68afd43983f7821981a7f571558c07a2
https://doi.org/10.1016/s0927-7757(96)03801-0
https://doi.org/10.1016/s0927-7757(96)03801-0
Publikováno v:
Chemical Engineering Science. 51:3449-3458
A given hydrocarbon gas-water-model oil system, used as a reference system for testing of new hydrate inhibitors, has been evaluated for experimental reproducibility of hydrate formation and behavior at low conditions. The system was remixed five tim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d95e531f23990d88f1c40ebde0da3a76
https://doi.org/10.1016/0009-2509(95)00410-6
https://doi.org/10.1016/0009-2509(95)00410-6
Autor:
Johan Sjöblom, Olav Urdahl
Publikováno v:
Journal of Dispersion Science and Technology. 16:557-574
Stabilization and destabilization of water-in-crude oil emulsions from the North Sea is reviewed. It is concluded that indigenous interfacially active components in the crude oils are responsible for the stabilization. Model systems stabilized by the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b87343ce22c0fa0193bd9e7b1c241134
https://doi.org/10.1080/01932699508943707
https://doi.org/10.1080/01932699508943707
Publikováno v:
Chemical Engineering Science. 50:863-870
A high-pressure test wheel for flow simulation has been used for the specific purpose of studying gas hydrate formation and inhibition in hydrocarbon gas-water-oil systems. The stainless steel wheel, which could be rotated in a temperature controlled
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76be4c29b2c96a7c4c7f48dad5d05028
https://doi.org/10.1016/0009-2509(94)00471-3
https://doi.org/10.1016/0009-2509(94)00471-3
Publikováno v:
Journal of Colloid and Interface Science. 166:43-50
Properties of water-in-crude oil emulsions and model systems stabilized by interfacially active crude oil fractions or tetraoxyethylene nonylphenyl ether were analyzed using time domain dielectric spectroscopy. The amount of dispersed aqueous phase c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8afe6865cc9d7727b2c6c14eb7daac08
https://doi.org/10.1006/jcis.1994.1269
https://doi.org/10.1006/jcis.1994.1269