Show simple item record

dc.contributor.advisorKårstad, Terje
dc.contributor.authorSuter, Erich
dc.date.accessioned2018-12-27T14:01:33Z
dc.date.available2018-12-27T14:01:33Z
dc.date.issued2018-09
dc.identifier.citationNovel Principles for Effective Earth Model Grid Management while Geosteering, by Erich Suter, Stavanger: University of Stavanger, 2018 (PhD thesis UiS, no. 409)nb_NO
dc.identifier.isbn978-82-7644-789-7
dc.identifier.issn1890-1387
dc.identifier.urihttp://hdl.handle.net/11250/2578690
dc.description.abstractThe aim of geosteering is to place the well optimally in the reservoir, based on the available measurements and interpretations of the geology. The interpretations are captured in earth models that are used for decision support. But real-time decision processes such as geosteering are poorly supported by current earth modelling methods. While drilling, new measurements received from the well allow revisions of the pre-drill geological interpretations. However, the current modelling tools are not capable of updating their representations of the interpretations in real-time. 3D earth models are typically kept unchanged during the drilling operation, while updated 2D models capture the geological interpretations only in a simplistic manner. Furthermore, uncertainties in the interpretation of the geological structures are not accounted for. Such strategies are inadequate for geosteering support when drilling in geologically complex regimes, and may lead to poor decisions. Current 3D modelling technologies are typically based on an inflexible, global grid that is used to represent geological structures and petrophysical properties. The management of this grid is slow and time consuming. To pave the way for a more effective earth model management, novel principles for i) local updates of the geological structure in an existing grid, ii) local control of the resolution of the geological structure and consequently the grid, and iii) local scale uncertainty management including the geological structure are proposed. The principles are demonstrated in a 2D software prototype. The ultimate aim is to enable an always updated multi-realization 3D model at optimal resolution while drilling, suitable for real-time decision support under uncertainty.nb_NO
dc.language.isoengnb_NO
dc.publisherStavanger: University of Stavangernb_NO
dc.relation.ispartofseriesPhD thesis UiS;409
dc.relation.haspartPaper A. Suter, E., Cayeux, E., Vefring, E., Næsheim, L., Friis, H., Escalona, A. and Kårstad, T. (2010) An Efficient Approach for Earth Model Updates. Paper SPE-136319-MS presented at the SPE Russian Oil and Gas Conference and Exhibition, Moscow, Russia, 26-28 October. https://dx.doi.org/10.2118/136319-MS. (Not available in Brage)nb_NO
dc.relation.haspartPaper B. Suter, E., Cayeux, E., Escalona, A., Kårstad, T. and Vefring, E. (2012) A Strategy for Effective Local Updates of the Geological Structure in an Earth Model during Drilling. Extended abstract presented at the 74th EAGE Conference and Exhibition Incorporating EUROPEC, Copenhagen, Denmark, 4 June. https://dx.doi.org/10.3997/2214-4609.20148222. (Not available in Brage)nb_NO
dc.relation.haspartPaper C. Luo, X., Eliasson, P., Alyaev, S., Romdhane, A., Suter, E., Querendez, E. and Vefring, E. (2015) An Ensemble-Based Framework for Proactive Geosteering. SPWLA 56th Annual Logging Symposium, Long Beach, California, USA, 18-22 July. (Not available in Brage)nb_NO
dc.relation.haspartPaper D. Suter, E., Cayeux, E., Friis, H., Kårstad, T., Escalona, A. and Vefring, E. (2017a) A Novel Method for Locally Updating an Earth Model While Geosteering, International Journal of Geosciences 8, pp. 237-264. https://doi.org/10.4236/ijg.2017.82010.nb_NO
dc.relation.haspartPaper E. Suter, E., Friis, H. A., Vefring, E. H., Kårstad, T. and Escalona, A. (2017b) A novel method for multi-resolution earth model gridding, Paper SPE-182687-MS presented at the SPE Reservoir Simulation Conference, 20-22 February, Montgomery, Texas, USA. https://doi.org/10.2118/182687-MS. (Not available in Brage)nb_NO
dc.relation.haspartPaper F. Suter, E., Alyaev, S. and Daireaux, (2017c) B. RT-Hub - Next Generation Real-time Data Aggregation While Drilling, Extended abstract presented at the First EAGE Workshop on Pore Pressure Prediction, 19-21 March, Pau, France. https://doi.org/10.3997/2214- 4609.201700060 (Not available in Brage)nb_NO
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.subjectgeosteeringnb_NO
dc.subjectpetroleum geosciencenb_NO
dc.subject3D modelling technologiesnb_NO
dc.titleNovel Principles for Effective Earth Model Grid Management while Geosteeringnb_NO
dc.typeDoctoral thesisnb_NO
dc.rights.holder© 2018 Erich Suternb_NO
dc.subject.nsiVDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Petroleumsgeologi og -geofysikk: 464nb_NO
dc.subject.nsiVDP::Teknologi: 500::Berg‑ og petroleumsfag: 510::Geoteknikk: 513nb_NO


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal