Benchtop Steady- and Unsteady-State Relative Permeameter

The Benchtop Steady- and Unsteady-State Relative Permeameter, model CT-RCA-BSRP, measures two-phase relative permeability on standard core plugs by both methods in one bench unit. Liquid/liquid and liquid/gas tests are run at ambient temperature with confining and pore pressure up to 350 bar (5,000 psi). It sits in the routine core analysis range and gives oil-water and gas-oil relative permeability curves for waterflood and displacement studies without a full special core analysis rig.

How it works

The plug, 1 in. or 1.5 in. diameter and 2 to 3 in. long, is loaded in a hydrostatic core holder with stainless steel wetted parts. In unsteady-state mode one fluid displaces the other at a set injection rate. In steady-state mode both fluids are injected together at set rates until flow stabilizes, and the ratio is stepped to trace the curve. The controlled variables are injection rates and confining pressure. The output is the relative permeability curve for the fluid pair.

A nitrogen supply at 2,000 psi is required. Power is 110 to 220 VAC, 50 or 60 Hz.

What is included

• Hydrostatic core holder for 1 in. or 1.5 in. plugs, 2 to 3 in. long, stainless steel wetted parts
• Confining pressure system rated 350 bar
• Pore pressure and injection rated 350 bar
• Fluid separation, data acquisition and software: stated in the project datasheet

Specify for your project

• Plug diameter (1 or 1.5 in.) and length
• Test modes required (unsteady-state, steady-state or both) and the fluid pairs
• Confining and pore pressure required, up to 350 bar
• Injection rate range and number of injection lines
• Effluent measurement and data acquisition requirements
• Supply voltage and nitrogen availability at 2,000 psi

This description defines the product family. Guaranteed performance, included hardware, exclusions, interfaces and acceptance criteria are stated only in the project-specific technical proposal and approved datasheet.

Features

• Confining pressure: 350 bar (5,000psi)
• Pore pressure: 350 bar (5,000psi)
• Temperature : ambient
• Core diameter: 1" or 1''1/2
• Core length: 2'' to 3''
• Loading type: Hydrostatic
• Wetted material: stainless steel
• N2: 2,000 psi
• Power: 110-220 VAC, 50 or 60 Hz