Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Jan-Erik Nordtvedt"'
Publikováno v:
SPE Economics & Management. 9:080-089
Summary The objective of this paper is to identify ways to accelerate the uptake and fulfill the value potential of Intelligent Energy (IE). The paper is coauthored by a cross-industry group drawn from operators, service providers, and product vendor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d601dc73ba6f4ccb417bd6b22fd18e19
https://doi.org/10.2118/181091-pa
https://doi.org/10.2118/181091-pa
Publikováno v:
Day 1 Tue, May 14, 2019.
The push within the oil and gas industry towards digitalization hold great promises for optimizing operations and improving efficiency. Therefore, most oil and gas companies have large initiatives within digitalization – huge efforts on data acquis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::228d39761c98ffceee19292ddb366a04
https://doi.org/10.2118/195631-ms
https://doi.org/10.2118/195631-ms
Autor:
Jan-Erik Nordtvedt, Helen Gilman
Publikováno v:
SPE Economics & Management. 6:185-190
Summary The first 10 years of intelligent energy (IE) have been interesting and rewarding. The oil and gas industry has seen many successful IE implementations with significant value delivered. We have established improved communication and collabora
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb3471f22ba555a9820c342f3d3b88b9
https://doi.org/10.2118/167895-pa
https://doi.org/10.2118/167895-pa
Autor:
A. Ted Watson, Kristofer Kolltveit, Jan-Erik Nordtvedt, Randi Valestrand, Jack Phan, Alv-Arne Grimstad
Publikováno v:
Inverse Problems in Engineering. 11:289-307
This article addresses estimation of porous media property functions, absolute and relative permeabilities, from experiments on core samples. Typically, the properties are taken to be homogeneous. However, recent studies have shown that such an assum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86c563b748a9989c9a464113c4f965ff
https://doi.org/10.1080/1068276031000135935
https://doi.org/10.1080/1068276031000135935
Publikováno v:
International Journal of Thermal Sciences. 41:546-556
Data from core analyses, such as residual oil saturation and relative permeabilities, are of great importance for proper exploitation of the petroleum resources. Such quantities are typically determined through interpretation of data acquired during
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02ce12c9223aa5cf6a30e79c48327cfb
https://doi.org/10.1016/s1290-0729(02)01348-0
https://doi.org/10.1016/s1290-0729(02)01348-0
Autor:
A. Ted Watson, Einar Ebeltoft, André Sylte, Raghavendra Kulkarni, Jan-Erik Nordtvedt, Alv-Arne Grimstad
Publikováno v:
Inverse Problems in Engineering. 10:65-84
This paper presents and demonstrates a systematic approach to the selection of experimental designs leading to accurate estimates of relative permeability and capillary pressure functions for two-phase flow in porous media. The objective is to select
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e1b6789c2b50c07f05000de76f4d675
https://doi.org/10.1080/10682760290022546
https://doi.org/10.1080/10682760290022546
Assessing the validity of a linearized accuracy measure for a nonlinear parameter estimation problem
Publikováno v:
Inverse Problems. 17:1373-1390
We consider accuracy assessment for the inverse problem of recovery of unknown coefficient functions in differential equations from data containing random errors. The set of PDEs constituting the current forward model describes a special case of two-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b76dc05c7d76ffe8a9fe54e399ed2c1b
https://doi.org/10.1088/0266-5611/17/5/309
https://doi.org/10.1088/0266-5611/17/5/309
Publikováno v:
AIChE Journal. 44:2337-2350
The experimental design and analysis of two-phase dynamic displacement experiments are investigated, with particular attention to incorporating measured saturation distributions. Pressure drops and saturation distributions measured with displacement
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efb0ad6e3f91d5b5d2c861791ae10b45
https://doi.org/10.1002/aic.690441102
https://doi.org/10.1002/aic.690441102
Publikováno v:
Measurement Science and Technology. 9:898-905
Properties important for describing the flow of multiple fluid phases through porous media are represented as functions of state variables (fluid saturations). A generalized procedure is presented to obtain the most accurate estimates of the multipha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41779f880ec1c098f1f75d676cce9734
https://doi.org/10.1088/0957-0233/9/6/006
https://doi.org/10.1088/0957-0233/9/6/006
Publikováno v:
SPE Reservoir Engineering. 6:497-501
Summary This paper presents a new parameter-estimation method to obtain a capillary pressure curve from centrifuge data. The wetting-phase saturation is regarded as a function of the capillary pressure curve and is approximated by a spline function.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24b2c966677ff186264f2d85c7ea7377
https://doi.org/10.2118/19019-pa
https://doi.org/10.2118/19019-pa