Drop Shape Analyzer

Wetting and interfacial tension under pressure conditions of reservoir stimulation

The DSA100HP1750 performs precise measurements of contact angle as well as surface tension and interfacial tension at pressures of up to 1750 bar and temperatures of up to 250 °C. The main focus of the instrument lies in the optimization of reservoir stimulation in oil recovery by influencing both wetting of rock and water/oil phase interactions. The DSA100HP1750 combines our expertise in the field of optical drop shape analysis and the know-how of our partner EUROTECHNICA in high pressure applications.

Applications

• Surface tension of stimulation fluids and their interfacial tension with oil under storage conditions

• Wettability of reservoir rock in air as well as wetted by oil

Measuring methods

• Contact angle of a drop on a solid surface
• Contact angle using a gas bubble beneath a solid surface in a liquid
• Surface or interfacial tension using the curvature of a drop or bubble at the tip of a needle

Measuring results

• Surface tension of a liquid

• Interfacial tension between two liquids

• Static contact angle

• Contact angle using a bubble in a liquid