Description
The PDP 200 is a specialized instrument engineered for the precise quantification of ultra-low permeability in very tight rock samples. Utilizing the pulse-decay permeability method, the device is calibrated to deliver reliable measurements in the range of approximately 0.01 microdarcies to 0.1 millidarcies. The system monitors the decay of pressure differentials across the rock specimen at predetermined time intervals. The instrument's architecture includes a thermostatically-controlled insulation cabinet for maintaining consistent test conditions. Within this cabinet are two stainless steel reservoirs tasked with fluid storage and management, complemented by dual high-precision pressure transducers for meticulous pressure gradient monitoring. The system also incorporates multiple zero-volume-change valves, as well as a dedicated needle valve to initiate the pulse-decay process. Data acquisition and analysis are facilitated by an integrated computer station, ensuring the accurate capture and interpretation of permeability metrics.
Specifications
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Permeability range
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0.01 microdarcy and 0.1 millidarcy
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Maximum confining pressure
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70 Mpa (10,000psi)
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Maximum pore pressure
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20 Mpa (3,000psi)
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Specimen diameter
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1 inch, 1.5 inches (other upon request)
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Specimen length
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Twice the diameter
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Fluid
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Nitrogen gas
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Air requirement
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100 psi
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Power
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110-220 VAC , 50/60 Hz
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Benefits
Designed for measuring ultra-low permeability in tight rock samples with high precision across a specific range
Ensures consistent test conditions through a temperature-controlled environment
Provides reliable and repeatable results with its sophisticated pressure monitoring system
Offers seamless data handling with its integrated computer station