Core gripper type

Confining pressure

Confining pressure + axial pressure (optional)

Core gripper parameters

Suitable for core samples with diameter 1" height 3/4" ~2" and diameter 1.5" height 3/4" ~ 3" (can be designed according to the actual situation of users);

It can increase confining pressure for core and provide high pressure test gas and constant temperature environment;

Confining pressure range 0~60MPa;

Test gas pressure range 0~20MPa;

Constant temperature range [-10℃~+80℃], accuracy ±0.1℃;

Internal temperature sensor, can collect the internal temperature of the gripper, accuracy ±0.1%;

With exhaust needle valve, can be in the confining pressure before the exclusion of air;

Provide rubber jackets for core samples of different sizes;

Diameter 1" and 1.5" cores only need to replace the plug, easy to disassemble.

The 1" core gripper is suitable for selection of core samples with a diameter of 1" and a height of 3/4" ~2" (can be designed according to the actual situation of users);

1.5" core gripper is suitable for selection of core samples with diameter of 1.5" and height of 3/4" ~ 3" (can be designed according to the actual situation of users);

It can increase confining pressure and axial pressure to the core and provide high pressure test gas and constant temperature environment.

Confining pressure, axial pressure range 0~60MPa;

Test gas pressure range 0~20MPa;

The constant temperature range is [room temperature +5℃~+40℃], the accuracy is ±0.1℃, the core gripper and the test pipeline are in the same constant greenhouse, avoiding the error caused by the temperature difference;

Internal temperature sensor, can collect the internal temperature of the gripper, accuracy ±0.1%;

With exhaust needle valve, can be in the confining pressure before the exclusion of air;

Provide rubber jackets for core samples of different sizes;

Multiple core gripper replacement, suitable for quick removal of joint, easy replacement.

Axial compression system

None

All stainless steel connection, using 70Mpa pressure test;

Equipped with high precision imported pressure sensor 0~60Mpa, precision 0.1%;

Product Specifications

Long*width*height = 1500mm*770mm*1620mm;

Voltage: 220 ± 5V, power 2kW;

Weight: 215kg;

Packaging: wooden packaging.

Length * width * height =1250mm*770mm*1050mm;

Voltage: 220±5V, power 2kW;

Weight: 200kg;

Packing: Wood packing.

Principle of test

Pulse attenuation method

Automatic confining water pressurization system

No manual pressure, just by adjusting the driving gas pressure to achieve automatic pressure;

Can provide 0~60MPa confining pressure, axial pressure for the core gripper ;

Water pressure using imported high-precision pressure sensor collection, pressure sensor range: 0~60MPa, precision 0.1%;

Confining pressure system

All stainless steel connection, using 70Mpa pressure test;

Equipped with high precision imported pressure sensor 0~60Mpa, precision 0.1%;

High pressure gas booster system

No manual pressure, just by adjusting the driving gas pressure to achieve automatic pressurization;

Provide the core with a test gas pressure of 0~20MPa;

Can be no less than 1.5MPa gas pressurization to 20MPa;

Test report

Permeability measurement range: 1× 10-10 ~ 1×10 3 mD

Porosity test range: 0%~80%

Pore volume, skeleton volume

True density

Gas of test

Air, nitrogen, helium, methane, etc.;

Test the air path system

All stainless steel air path structure, using 30MPa hydraulic pressure test;

Equipped with 2 imported high-precision pressure sensors, the range is 0~200bar, the accuracy is 0.1%;

The upper and lower core cavities can achieve a minimum cavity of 5ml to improve the accuracy of low permeability rock samples.

According to the type of user rock sample, the number of expansion cavities can be increased to increase the upstream and downstream cavities of rock sample, so as to improve the test accuracy of rock sample with medium and high permeability. (Optional)

The valve adopts the imported 316 stainless steel high pressure pneumatic diaphragm valve with high safety and high pressure resistance. It can realize automatic on/off control within the pressure range of 20MPa. The sealing performance reaches zero leakage and the service life is up to 500 million times.

The whole gas path uses Swiss Infalcom helium mass spectrometry leak detector to detect the leakage, so that the instrument's air tightness is fully guaranteed.

Vacuum system (optional)

The sample can be vacuumized;

Imported vacuum pump, limit vacuum degree 1*10-7MPa.

Software Functions

The software automatically collects and records the pressure and temperature values in the system, and draws the curve of pressure time and temperature time;

Automatically save the relevant raw data, and calculate permeability, porosity, pore volume, skeleton volume, true density and other results;