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DSA100HP1750 – 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.

  • 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

INSTRUMENT DIMENSIONS

Footprint 900 mm × 600 mm (W × D)
Height 900 mm
Weight (without accessories) 80 kg

TEMPERATURE MEASUREMENT

Range of temperature measurement -50 to 400 °C
Resolution 0.1 °C
Precision 0.1 °C
Accuracy 1/3 DIN B
(±0.1 °C at 0 °C to ±0.8 °C at 400 °C)
Location of temperature measurement sample stage, chamber, cuvette
External sensor 2 connectors (PT100)

POWER SUPPLY

Voltage 88 to 264 VAC
Power consumption 100 W
Frequency 50 to 60 Hz

SAMPLE DIMENSIONS

Maximum sample size 25 cm³
Maximum measuring surface 10 mm × 0 mm

ENVIRONMENT

Operating temperature 10 to 40 °C
Humidity without condensation

TEMPERATURE CONTROL

Type of temperature control electrical
Range of temperature control 20 to 250 °C
Flow-through thermostat

INTERFACES

PC USB 3.0

HOUSING AND PERIPHERALS

Compartment test liquids protected against light
Needle protection shield yes
Camera und optics housing yes
Control keyboard PC keyboard for ADVANCE software operation available (KB20)
Levelling yes

PRESSURE CONTROL

Maximum pressure 1750 bar (25 000 psi)

SOFTWARE

Software type ADVANCE
Available software modules contact angle
interfacial and surface tension of liquids

CAPTIVE BUBBLE

Available included
Results contact angle (CA)
Range 0 to 180° (software-based)
Resolution 0.01° (software-based)
Accuracy 0.1° (instrument-based)
Models conic section
polynom
circle
Young-Laplace
height-width
Type advancing
receding
static
dynamic
(additional accessories may be required)

SESSILE DROP

Available included
Results contact angle (CA)
Range 0 to 180° (software-based)
Resolution 0.01° (software-based)
Accuracy 0.1° (instrument-based)
Models conic section
polynom
circle
Young-Laplace
height-width
Type advancing
receding
static
dynamic
(additional accessories may be required)

PENDANT DROP/RISING DROP

Available included
Results interfacial tension (IFT)/surface tension (SFT)
Range 0.01 to 2000 mN/m (software-based)
Resolution 0.01 mN/m (software-based)
Models Young-Laplace
Types (Pendant drop/Rising drop) static, dynamic

CAMERA SYSTEM (STANDARD)

Type Camera CF04
Connection USB 3.0
Resolution 1920 × 1200 px
Frame rate 2300 fps
Dark noise 7 electrons
Dynamic range 73 dB

ILLUMINATION

Type high power monochromatic LED
Wave length, dominant 470 nm
Field of light 46 mm × 46 mm (D × H)

OPTICS (STANDARD)

Focus manual
Zoom 7× zoom, manual
View angle ±4°
Field of view CF04: 3.9 mm × 3.9 mm to 24.7 mm × 24.7 mm
Resolution of optics CF04: 3.1 to 21.7 μm

CAMERA SYSTEM (OPTIONAL)

Type High Speed Camera CF06
Connection USB 3.0
Resolution 640 × 480 px
Frame rate 3400 fps
Dark noise 10.5 electrons
Dynamic range 56.6 dB

DOSING SYSTEM

Dosing manual
Drop deposition manual
Piston, volume 11 mL

STAGES

Control x-axis: manual (optional)
Length x-axis: 10 mm (optional)

OPTICS (OPTIONAL)

Focus manual
Zoom 7× zoom, manual
View angle ±4°
Field of view CF06: 1.7 mm × 1.3 mm to 10.8 mm × 8.1 mm
Resolution of optics CF06: 2.5 to 17.8 μm