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Abstract

Summary

The oil price downturn and its slow and fragile recovery have induced the necessity of new and cost-efficient EOR methods that will favour the oil recovery optimization from existing fields. Modified flotation technique (MFT) was used to estimate the wettability of chalk rocks and its modification, when subjected to interaction with different brines (s.I.). Produced water (PW), low sulphate seawater (LSSW) and seawater were tested in various combinations and mixture ratios. The results demonstrated that it is of interest to investigate PW and LSSW in ionically controlled waterflooding. Microvariations and chalk heterogeneities can lead up to 15% difference in wettability estimations. The injection fluid composition shall be designed accounting for the singularities of each crude oil-brine (s.I.)-rock system.

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/content/papers/10.3997/2214-4609.201801560
2018-06-11
2024-04-19

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References

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New Perspectives on Ionic Control of Produced Water and Low Sulphate Seawater: Wettability Insights from MFT
Conference Proceedings 2018, 1 (2018); https://doi.org/10.3997/2214-4609.201801560
/content/papers/10.3997/2214-4609.201801560
/content/papers/10.3997/2214-4609.201801560
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