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Feasibility of 4D gravity in reservoir monitoring
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SYSNO ASEP 0399005 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Feasibility of 4D gravity in reservoir monitoring Author(s) Mrlina, Jan (GFU-E) ORCID, RID Source Title 75th EAGE Conference & Exhibition incorporating SPE EUROPEC 2013. Proceedings. - Houten : EAGE, 2013 - ISBN 978-90-73834-48-4 Pages th-10-16/1-th-10-16/5 Number of pages 5 s. Publication form Medium - C Action EAGE Conference & Exhibition incorporating SPE EUROPEC 2013 /75./ Event date 10.06.2013-13.06.2013 VEvent location London Country GB - United Kingdom Event type EUR Language eng - English Country NL - Netherlands Keywords gravity modelling ; hydrocarbon reservoirs ; 4D gravity Subject RIV DC - Siesmology, Volcanology, Earth Structure R&D Projects LM2010008 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support GFU-E - RVO:67985530 DOI 10.3997/2214-4609.20130127 Annotation Gravity monitoring of hydrocarbon reservoirs has been already successfully applied in a few cases. However, it may easily fail in many other cases, depending on different parameters of rocks and fluids, as well as different geometry of the reservoir formation. A feasibility study is needed before any decision taking. It is normally performed with a full and detailed modeling of the gravity signal caused by the density change related to reservoir re-saturation by different fluid during hydrocarbon extraction, including enhanced oil recovery, as well as gas/steam injection. The correct estimate of rocks and fluids effective densities is crucial, considering other rock properties like porosity and permeability. As well, reservoir geometry plays a significant role, especially depth, thickness and horizontal extent of the re-saturated zone. A simple technique was developed to estimate the feasibility of the 4D Gravity application to reservoir monitoring, based on graphs and tables. Workplace Geophysical Institute Contact Hana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028 Year of Publishing 2014
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