Microbial Injection Core Flood System

The Microbial Injection Core Flood System, model CT-EOR-MICROB, performs microbial EOR core floods at reservoir conditions. Microbial fluids are injected through a core plug held at confining pressure and temperature, and recovery is measured from the produced effluent. The results are used to screen microbial EOR strategies before field trials.

How it works

The plug is loaded in a horizontal core holder with Hastelloy wetted parts. Confining pressure up to 700 bar (10,000 psi) is applied around the sleeve, pore pressure is set on the flow path, and the holder is brought to a working temperature of up to 150 °C. The standard plug size is 1.5 in. diameter and 1 to 3 in. long; other sizes are available on request. The controlled variables are confining and pore pressure, temperature and the injection of the microbial fluid. The measured variables are recovery and effluent analysis, from which the change in recovery and permeability is tracked over the flood.

The system runs on 220 VAC, 50 Hz and needs an instrument air supply at 7 bar (100 psi). Injection, back pressure, effluent collection and instrumentation modules are configured per project.

What is included

• Horizontal core holder, 1.5 in. diameter, 1 to 3 in. length, Hastelloy wetted parts
• Confining pressure system rated 700 bar
• Temperature control to 150 °C
• Injection, back pressure and effluent modules: stated in the project datasheet

Specify for your project

• Core diameter and length, if different from standard
• Confining pressure, pore pressure and test temperature
• Microbial fluids, nutrients, brine and oil to be injected, and the number of injection lines
• Effluent measurement required (produced volumes, sampling for analysis)
• Wetted materials, if the fluids require anything other than Hastelloy
• Supply voltage and air supply at site

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

• Maximum confining pressure: 700 bar (10,000 psi)
• Maximum working temperature: 150°C
• Core diameter: 1”5 (other upon request)
• Core length: 1 to 3” (other upon request)
• Position: Horizontal
• Wetted parts: Hastelloy
• Power supply: 220VAC, 50Hz
• Air Pressure requirements: 7 bar (100 psi)