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Wettability on mineral rock surfaces at reservoir conditions

Wettability on mineral rock surfaces at reservoir conditions. Workshop Wettability characterization and alteration for heterogeneous carbonate reservoir rocks Ingebret Fjelde, Samuel Erzuah and Aruoture Omekeh, NORCE, Norway 18 March 2019.

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Wettability on mineral rock surfaces at reservoir conditions

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  1. Wettability on mineral rock surfaces at reservoir conditions WorkshopWettability characterization and alteration for heterogeneous carbonate reservoir rocks Ingebret Fjelde, Samuel Erzuah and Aruoture Omekeh, NORCE, Norway 18 March 2019

  2. Quartz Crystal Microbalance with Dissipation(QCM-D) • Nanoscaletechnique for analyzingsurfacephenomenaincludingthin film formation, interactions and reactions • Frequency • Related to mass/thickness • Dissipation • Related to rigidity △f - C△m Sauerbrey Equation https://www.biolinscientific.com/measurements/qcm-d

  3. QCM-D measurements https://www.biolinscientific.com/measurements/qcm-d

  4. Adsorptionof polar oilcomponentsvschange in wettability Minerals tested Quartz (standard) Kaolinite (prepared) Potentialother minerals, i.e. carbonate minerals Wettability – oiladsorption Deposition area Q-Sensor

  5. Challenges Corrosion Etching sensor Precipitation Displacement efficiency Experimentalset-upPrototype QCM-D cell: Pmax=200 bar Tmax=300°C Erzuah, Fjelde, and Omekeh. Challenges Associated with Quartz Crystal Microbalance with Dissipation (QCM-D) as a Wettability Screening Tool. Oil & Gas Science and Technology – Rev. IFP Energis Nouvelles 73 (58) (2018).

  6. Change Frequency (∆f) Fluid #1 Fluid #2 Fluid #1 Time, s Frequency, Hz II III I No change in frequency (∆f = 0) III I II Time, s ∆f ≠ 0 Frequency, Hz Fluid #2 Fluid #1 Fluid #1 Change in frequency (∆f ≠ 0) Erzuah, Fjelde, and Omekeh. Wettability Estimation by Oil Adsorption using Quartz Crystal Microbalance with Dissipation (QCM-D). SPE-190882-MS. SPE Europec, Copenhagen, Denmark, June 2018.

  7. Quartz: FW/N-Decane/FW II I III ∆f FW FW N-Decane No change frequency (∆f = 0 Hz) due to lack of oil adsorption Erzuah, Fjelde, and Omekeh. SPE-190882-MS. SPE Europec, Copenhagen, Denmark, June 2018.

  8. Quartz: FW/STO/FW II I III FW STO FW No change frequency (∆f = 0 Hz) due to lack of oil adsorption Erzuah, Fjelde, and Omekeh. SPE-190882-MS. SPE Europec, Copenhagen, Denmark, June 2018.

  9. Kaolinite: FW/N-Decane/FW II III I ∆f FW N-Decane FW Negligible change in frequency (∆f ≈ 0 Hz) Erzuah, Fjelde, and Omekeh. SPE-190882-MS. SPE Europec, Copenhagen, Denmark, June 2018.

  10. Kaolinite: FW/STO/FW III I II ∆f FW STO FW Change in frequency (∆f ≠ 0 Hz) due added mass Erzuah, Fjelde, and Omekeh. SPE-190882-MS. SPE Europec, Copenhagen, Denmark, June 2018.

  11. Kaolinite: Low salinity brine LSW#1 II I III ∆f LSW #1 LSW #1 STO High change in frequency (∆f ≠ 0 Hz) due to more oil adsorption Erzuah, Fjelde, and Omekeh. SPE-190882-MS. SPE Europec, Copenhagen, Denmark, June 2018.

  12. Kaolinite: Low salinity brine LSW#2 II III I LSW#2 STO LSW#2 Negligible change in frequency (∆f ≈ 0 Hz) due to lack of oil adsorption Erzuah, Fjelde, and Omekeh. SPE-190882-MS. SPE Europec, Copenhagen, Denmark, June 2018.

  13. Thickness (∆t) & Mass Adsorbed (∆m) III I II STO FW FW Adsorbed oil (∆m) = 1600ng & thickness (∆t) = 5.8 nm Erzuah, Fjelde, and Omekeh. SPE-190882-MS. SPE Europec, Copenhagen, Denmark, June 2018.

  14. Conclusions • Oil adsorption can be measured by QCM-D • Potential to screen injection fluids to evaluate their tendency to alter wettability to more water-wet Future work • Improve displacement efficiency of immiscible phases in QCM-D cell • Extend QCM-D technique to include other minerals, e.g. carbonate minerals

  15. Acknowledgement Thankyou • infj@norceresearch.no

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