Program-measuring “PIK-AEI” complex for filtration experiments with current saturation X-ray control

The PIK-AEI complex is designed to carry out filtration experiments (oil displacement by water/gas, determination of relative phase permeabilities and the effectiveness of physicochemical methods of enhanced oil recovery) by stationary and non-stationary methods at reservoir conditions.

Core samples current saturation is estimated by the X-ray method, which also allows to record the dynamics of displacement front and end effects presence. The complex can be used to assess core samples density heterogeneity. The software allows conducting experiments in automatic mode.

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Benefits/Capabilities

Research of full-size core samples
Optionally, X-ray scanner can be made to conduct research with vertical and horizontal position of the core holder
The installation is safe for personnel and does not require placement in a special room thanks to the protective cabinet

Measured parameters

Phase permeability for two- and three-phase systems (liquid-liquid-gas) in accordance with OST 39-235-89
Core samples current saturation
Displacement front position
Open porosity at reservoir conditions
Open porosity dynamics when changing reservoir conditions
Absolute and effective liquid and gas permeability
Oil displacement coefficient by water / gas

Technical specifications

Hydraulic system
Crimp pressure, MPa	up to 70
Pore pressure, MPa	up to 70
Pore fluid supply	in forward and reverse direction
Fluid-contact parts material	stainless steel, titanium
Working substance	water mineralized up to 300 g / l oil gas
Pump groups
Rock pressure pump type	pneumohydraulic booster
Rock pressure pump operating mode	maintaining constant pressure
Maintaining pressure accuracy,% (of full scale)	0,5
Reservoir pumps for supplying liquids and gas	3 pcs. (for oil, saline and gas)
Reservoir pumps type	two-plunger
Reservoir pumps operating mode	· maintaining constant flow rate · maintaining constant pressure · maintaining predetermined proportion when filtering three phases of fluids through a core sample from 0 to 100%
Flow rate, ml / min	0,001-50
Cylinder volume, ml	200
Maintaining reservoir pumps pressure accuracy of the rock pressure system,% (of the current value)	0,5
Maintaining reservoir pumps flow rate accuracy of the rock pressure system,% (of the current value)	0,5
Temperature maintenance system
Type	heating chamber / thermostable volume + individual heaters
Operating temperature range, °C	from +25 to +150
Heated elements	core holder, supply tubes, separation tanks

Differential pressure measuring system
Sensor 1. Upper measurements limit, MPa	1,6
Sensor 2. Upper measurements limit, kPa	250
Measurement accuracy, %	not more than ± 0,075
Separation tanks
Type	with dividing piston
Volume, ml	500/1000
Maximum working pressure, MPa	до 70
Maximum working temperature, °С	+150
Fluid-contact parts material	stainless steel
Backpressure regulator
Pressure, MPa	up to 70
Control	automatic, PC connection
Fluid-contact parts material	stainless steel
X-ray saturation scanner
Detector Type	linear / point
Clearance, mm	0.4
X-ray source, kV	120
X-ray transparent core holder
Core diameter, mm	30
Maximum column length of core samples, mm	300
Maximum working crimp pressure, MPa	70
Maximum working pore pressure, MPa	40
Maximum working temperature, °С	+150
Fluid-contact parts material	stainless steel

PC-based monitoring and control system

Control	pumps flow rate, temperature, back pressure regulator, automatic valves
Data collection	pressure/differential pressure digital sensors, pumps flow rate, temperature sensors, core saturation distribution