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Annulus-microfracture Gas-migration Apparatus 

Introduction 

This apparatus is tested the effect of the adhesive force of cement annulus and cement annulus vs. outer side of oil tube and inner side of annular tube in the condition of simulating downhole change environment.

The instrument can stimulate the following environment change:

1. the voltage change inside the oil tube 
2. the temperature change of the bottom pressure 
3. alternate change of the pressure at the top and the bottom of cement annular 
4. alternate change of the pressure of oil tube and ground  
5. the change of the compressing force for oil tube
6. the change of the drawing force for oil tube

Configurations

1. operation and control part
2. curing part
3. vessel
4. data acquisition system

TG-5002

840*750*1700mm(1280kg)

Specifications 

Outer diameter of inner tube: φ177.8mm

Inner diameter of outer tube: φ245mm

Pressure of inner tube: 0~70MPa (pressure controlled) 

Pressure of outer tube: 0~70MPa (pressure controlled) 

Pressure of air layer: 0~12MPa (pressure controlled) 

Pressure of the top and the bottom of cement annular: 0~70MPa (pressure controlled) 

Temperature range: 200℃ (temperature controlled) 

Drawing force: 0~10000kg (force controlled)

Compressing force: 0~10000kg (force controlled)