Acoustic velocity system Reservoir geomechanics Instruments

The Acoustic velocity system Reservoir geomechanics Instruments system is designed to conduct measurements of compressional and shear wave velocities in rock specimens. The system consists of an axial-piston triaxial cell engineered to provide the deviatoric stress required to replicate downhole conditions well before actual rock failure occurs and to encase the rock sample, flanked by two compression platens housing piezo-electric crystals for both compression and shear wave measurements, a fluid vessel containing pore fluid for injection into the specimen, an air-operated pump responsible for controlling both confining and pore pressure, a fast-acting pulser-receiver and a data acquisition computer station. The pulser-receiver is responsible for exciting the ultrasonic sensors and displaying the resulting waveform signals. The rapid-response pulser is employed to initiate the excitation of the ultrasonic sensor, while an exceptionally high-speed analog-to-digital converter is utilized for the rapid capture and storage of the ensuing waveform signals.

Confining pressure :

• Up to 700 bar (10,000 psi)

Pore pressure :

• Up to 700 bar (10,000 psi)

Operating temperature :

• up to 120°C

Core sample diameter :

• 1"
• 30 mm
• 1.5"

Core sample length :

• up to 4"

Wetted parts :

• Stainless steel or Hastelloy

Mode :

• Compressional (P)
• Shear (S1 & S2)

Power supply :

• 110-220 VAC, 50/60 Hz

• Easy specimen loading operations
• Cost-effective instrument
• Delivers unparalleled accuracy and reliability