Method for estimating irreducible water saturation from mercury injection capillary pressure
US10495774B2 · kind B2 · utility
2Cited by
6References
26Claims
0Family size
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Key dates
| Filing date | Jan 13, 2015 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Mar 5, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2035/00881
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Irreducible water saturation of fluid-storing porous reservoir rock is determined using methods that include obtaining a reservoir rock sample from the underground fluid reservoir; performing mercury saturation measurements on the reservoir rock sample for different mercury injection pressure values to obtain mercury saturation values for the different mercury injection pressure values; and estimating the irreducible water saturation (Swirr) from the mercury saturation values and the mercury injection pressure values by correcting for surface films of fluid retained on pore walls of the reservoir rock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.