Reservoir to Refinery Webinar Series: Waterflooding in Sandstone and Carbonate Reservoirs: Does the Salinity Matter?

The second webinar in refinery month of our Reservoir to Refinery series is ‘Waterflooding in sandstone and carbonate reservoirs: Does the salinity matter?’

Waterflooding is the most common type of supplementary recovery in which water is injected to displace oil towards the producing zone. This procedure has several beneficial effects which include: the pressure differential between the field and the production well is maintained, and oil is ‘‘swept’’ in front of the injected water. Over the last decade, several laboratory and field studies have shown that a low-salinity waterflood (LSW) and smart waterflooding improved the oil recovery for sandstone and carbonate reservoirs. 

In this presentation, we will present:

• The different low-salinity waterflooding mechanisms.

• The role of clay content, rock permeability, and average pore throat radius on the performance of low-salinity waterflooding.

• The role of the salinity and composition (Na+, Ca2+, and Mg2+) of the reservoir connate water on the performance of low-salinity Waterflooding.

• The effects of mineral type, brine salinity, cation type, and pH on the zeta-potential measurements.

• Present the suggested laboratory tests to evaluate the performance of low-salinity water flooding.

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