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10 Cards in this Set

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  • Back
What is a reservoir simulation model used for?
Simuleringene brukes til å avgjøre hvor og hvor mange brønner som skal bores. Simulering av gass og vann kan også gjøres slik at man har kontroll på f.eks vann koning. Hjelper også for planlegging av improved recovery.
What is meant by primary, secondary and tertiary recovery?
Primær - Trykkutgjevning
Sekundær - Produksjon ved injeksjon. (Gass/Vann)
Tertiær - Avanserte metoder for ytterligere produksjon. (Kjemikalier, andre gasser enn hydrokarbongasser)
What are the most important drive mechanisms?
Vann presser oljen opp. Water Drive
Gass presser oljen ned. (Gas-cap Drive)
dissolved-gas drive
combination drive
gravity drainage
What is limiting production in the build-up phase?
Antall brønner. Brønnkapasiteten
What is limiting production in the plateau phase?
Kapasiteten ved plattformen.
What is limiting production in the decline phase?
Trykket og hydrokarbonfordelingen i reservoaret.
What is water coning?
Oljemigrasjon skjer tregere enn vannmigrasjon. Ved tapping av reservoaret stiger vannmassende under brønnen. Når vannet når brønnen sier vi at vi har fått water-koning. Av kjegle formen på vannmassene i et snitt over brønnen.
What is meant by IOR and EOR?
IOR - Improved oil recovery
Actual measures resulting in an increased oil recovery factor

EOR - Enhanced oil recovery
Advanced recovery techniques going beyond what is considered conventional methods at a given reference point in time.
What is meant by HCPV and STOIIP?
Hydrocarbon pore volume (HCPV)

Stock Tank Oil Initially In Place (STOIIP)
What is in-fill drilling
Infill drilling er å bore nye brønner i et allerede utbygget felt for å aksellerere utvinningen eller teste utvinningsmetoder