High Pressure Mercury Injection

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HPMI -  (also termed Mercury Injection Capillary Pressure – MICP) Capillary pressure plays an important role in understanding fluid distribution in a reservoir. This has a crucial impact on understanding heterogeneity and eventually the performance of the reservoir. It has many applications in formation evaluation including but not limited to:

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• Drainage capillary pressure and saturation height modelling​

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• Pore throat size distribution – micro porosity control on water saturation

• Rock typing

• Sample selection for SCAL

• Integration with NMR from log and core

• Selection of pressure points for capillary pressure by centrifuge, porous plate and de-saturation to Swi (for reservoir engineering SCAL) 

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• Entry pressure and threshold pressure (seal capacity)

CTS are able to offer this service in-house at our facility in Aberdeen where we have two Micromeritics Autopore IV systems – automated 0 – 60K psi.

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MICP analysis is a very powerful rock quality and pore fabric description tool and provides strong qualitative indicators concerning likely relative permeability behaviours.

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AutoPore IV Advantages

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• Ability to measure pore diameters from 0.003 to 360 μm​

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• High-pressure generating system can achieve 60,000 psi

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• Enhanced data reduction package; includes tortuosity, permeability, compressibility, pore-throat ratio, fractal dimension, Mayer-Stowe particle size, and more

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• Equilibration by sample-controlled, rate of intrusion

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• Operates in scanning and time- or rate-equilibrated 

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• Collects extremely high-resolution data; better than 0.1 μL for mercury intrusion and extrusion volume

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• Controlled evacuation prevents powder fluidization