Formation Damage Evaluation and Simulation System Model FDES-200

The Formation Damage Evaluation and Simulation System is a specialized setup used in the petroleum industry to study and assess formation damage caused by drilling, completion, and production processes. It helps simulate downhole conditions and evaluate the impact of various fluids and procedures on reservoir performance.

 Function: Simulates downhole conditions to evaluate formation damage due to drilling, completion, and production processes.

 Application Areas: Core flooding, permeability testing, fluid compatibility testing, and stimulation performance evaluation.

The warrants permeability variation studies on cylindrical core samples by exposing them to an ample range of test fluids. Fluids can be axially injected through the core in either direction or tangentially circulated across one of the flat end faces. This chemically impervious device handles at temperatures up to 300 F (150 °C) all types of cleaning treatments as well as corrosive fluid injections. System operation is entirely computer controlled by an automation package that allows precise monitoring and flow path control. A Windows based Vinci software allows the user to run automated test sequences for optimum versatility. Test data is graphically displayed and logged to the hard disk at specified time intervals.

The Formation Damage Evaluation and Simulation System can conduct the following studies under conditions simulating formation pressure and temperature:

 Liquid (Gas) Permeability Measurement
Under a certain flow rate, liquid (gas) is passed through the core. By measuring the pressure difference at the core’s inlet and outlet and the flow rate of the liquid (gas) passing through the core, along with other parameters, the permeability of the core to liquid (gas) can be calculated using Darcy’s Law.

 Permeability Gradient Measurement
This test mainly relies on a long core holder with pressure measurement holes along the core length. In a single experiment, the permeability of the entire core and its segments can be measured without altering the core’s original properties.

 Formation Damage Evaluation
This research studies the damage caused to the formation by fracturing fluid, drilling fluid, completion fluid, etc., as they circulate through the wellbore and flow past the wellbore wall.
The displacement system uses a dynamic filtrate loss core holder to simulate the shear of the operational fluid in the wellbore and measure the filtrate loss, investigating the depth of the damage. The following parameters can be measured:

l  Filtrate loss

l  Initial permeability

l  Recovery permeability

l  Permeability damage rate

Common Tests Performed:

• Mud      Invasion Tests:      Assess drilling fluid invasion and formation plugging.

• Acid      Stimulation Tests:      Evaluate the effectiveness of acid treatments in restoring permeability.

• Oil      Recovery Simulations:      Simulate secondary and enhanced oil recovery processes.

• Water      Flooding Tests:      Study water injection effects on formation performance.

Laboratory Requirements:

1. Laboratory      Entrance:
        The door height should be greater than      2.1 meters, the width should be greater than 1.3 meters, and the      laboratory area should be no less than 30 square meters.

2. Air      Compressor or Compressed Air Source:

• Pressure       Range: 0.7-1.0 MPa       Flow Rate:       0.2 m³/min

3.    Hydrogen Cylinder and High-Pressure Regulator:
Ensure a stable hydrogen supply with a secure pressure regulation system.

1. Water      Supply and Drainage System:
        Provide a suitable water source and      drainage facilities.

2. Power      Supply Requirements:

• 380V,       30A AC power, 50Hz   and   220V, 16A AC power