supplyRock acoustic electro osmotic comprehensive automatic testing system,Manufacturer of rock acoustic electro osmotic comprehensive automatic testing system,Professional production,Where can it be sold,Price,purpose

1、 Instrument functions

1. Gas permeability measurement

2. Gas porosity measurement

3. Determination of liquid permeability

At a certain flow rate, the liquid is passed through the core. By measuring the pressure difference between the inlet and outlet of the core and the flow rate of the liquid flowing through the core, combined with other parameters, the permeability of the core liquid is calculated according to Darcy's law.

4. Sensitivity evaluation test of geological strata.

5. Measurement of rock resistivity parameters

Measure the resistivity values of the core at different water saturation levels using a high-voltage resistivity core clamp and resistivity measuring instrument, and plot the relationship curve between saturation and resistivity index.

The water saturation and resistivity index of the core are automatically collected and calculated by the computer.

6. Determination of rock acoustic characteristics

Function: Used for laboratory measurement and calculation of acoustic velocity, elastic modulus, and attenuation coefficient of rock samples.

Principle:

(1) Using the ultrasonic pulse transmission method, measure the propagation time of longitudinal or transverse waves along the length direction of the rock sample, and calculate the longitudinal and transverse wave velocities of the rock sample.

(2) Measure and compare the variation of sound wave amplitude with the length of the rock sample, or calculate the attenuation coefficients of longitudinal and transverse waves based on the relative variation of sound wave amplitude between the measured rock sample and the reference sample.

2、 Main technical parameters

1. Work pressure

Ring pressure: 0-80MPa

Displacement pressure: 0-70MPa

Pressure test accuracy: 0.1% F · S

2. Flow range

Liquid: 0.0001～25mL/min

Gas: 0-3000 sccm

3. Model specifications

Specification of core gripper

φ25×25-100mm ,

4. Working temperature: 180 ℃, temperature control accuracy: ± 1 ℃

5. Power supply: AC 380V220V, 50HZ

6. Total power: 6Kw

3、 Basic composition and structure of the instrument

The instrument mainly consists of gas permeability measurement system, gas porosity measurement system, injection system, resistivity measurement system, acoustic measurement system, modeling system, metering system, automatic control system, and data acquisition and processing system. See workflow for details:

Gas permeability measurement system:Composed of pressure regulating valves, gas flow meters, etc., used for measuring gas permeability of various rock cores and models.

Gas porosity measurement system:Composed of pressure regulating valve, fixed container, porosity clamp, etc., used for measuring core porosity.

Inject system:Composed of an injection pump, an intermediate container, and pipe valves, various fluids can be injected into the model at a certain flow rate.

Electrical resistivity measurement system:Composed of a resistivity meter, a core water saturation tester, etc., measure the resistivity values of the core at different water saturation levels, and plot the relationship curve between saturation and resistivity index.

Acoustic measurement system:Composed of an automatic longitudinal and transverse wave measuring instrument, it can measure the propagation time of longitudinal or transverse waves along the length direction of the rock sample.

Simulation system:It consists of a core gripper, heating sleeve, ring pressure pump, back pressure system, etc.

Measurement system:Including pressure measurement, temperature measurement, flow measurement, oil gas water volume measurement, etc.

Automatic control system:The computer automatically controls the flow rate of the injection pump, the ring pressure pump automatically tracks the internal pressure, the constant temperature box is heated and maintained at a constant temperature, and the range of the pressure transmitter is automatically switched.

Data collection and processing:Composed of various data acquisition cards, computers, printers, and acquisition and processing software, it can timely collect parameters such as pressure, temperature, flow rate, oil, gas, and water volume, and perform arithmetic processing on the data.

4、 Technical specifications for the components that make up the instrument

1. Injection pump1tower

Model: 100DX type

The pump adopts servo motor and servo system, controlled by microcomputer for operation, displayed on LCD panel, working pressure: 20000psi, flow rate: 0.0001-25mL/min

The pump can also be operated by a computer to achieve remote control. (For detailed usage instructions, please refer to its manual)

2. Intermediate container

ZR-3 piston type: volume: 2000ml, pressure resistance: 70MPa, material: 316L, quantity: 4 pieces.

Used for storing replacement media and serving as a buffer.

5. Model

Core gripper

Applicable core specifications: φ 25 × 25-100mm, working pressure: 80MPa, material: 316L

6. Pressure regulating valve

High pressure regulating valve, inlet pressure: 6000psi, outlet pressure 0-2500psi.

Low pressure regulating valve, inlet pressure: 3500psi, outlet pressure 0-600psi.

7. Environmental pressure tracking pump

During the system displacement process, as the displacement fluid is injected, the inlet pressure of the core continuously increases. In order to allow the displacement fluid to pass through the core and prevent the displacement fluid from flowing along the wall, the inlet pressure of the core is tracked by the ring pressure tracking pump to maintain a constant net confining pressure.

Work pressure: 80MPa

8. Backpressure control system

Used to control the outlet pressure of rock cores and simulate the pore pressure of geological formations.

Backpressure pump: working pressure 80MPa

Backpressure buffer container: ZR-2 type, 1000mL, 80MPa

Back pressure valve: top loading type, 80MPa

9. Heating sleeve

Working temperature: 180 ℃± 1 ℃

Adopting PID regulation temperature control technology, the temperature is uniform and the temperature control accuracy is high.

10. Valves, pipelines, fittings and processes

Adopting DW3 internal sleeve high-pressure valve and fittings, with a pressure resistance of 100MPa, material: 316L

11. Measurement system

Pressure measurement:Measure pressure with a pressure transmitter. To ensure measurement accuracy, three pressure transmitters with different ranges are selected for each pressure measuring point, which can be automatically switched between ranges of 1MPa, 10MPa, and 80MPa

All pressures are displayed using a WP-C801-20-12-P pressure digital display, or can be collected by a computer through the RS232 port on the digital display.

Back pressure transmitter: 80MPa

Porosity measurement pressure transmitter: 1Mpa

Temperature measurement:Using PT100 temperature probe and XMT-7512 temperature controller to set, control, and measure temperature. The temperature can also be set and collected by a computer.

Flow measurement:Using the balance weighing method to calculate liquid flow rate

Balance model: BS2202S， Range 2200g, accuracy 0.01g

Computer automatically collects and calculates traffic values

Water saturation:Measure the volume of water discharged from the rock core using the pressure difference method.

12.Gas flow measurement:Used for gas permeability measurement, with ranges of 10sccm, 500sccm, and 3000sccm.

13.Wave velocity measurement:Using an intelligent ultrasonic longitudinal and transverse wave automatic measuring instrument to measure the longitudinal and transverse wave velocities.

14. Pressure automatic recognition switching system

To ensure the accuracy of pressure measurement, the system uses high, medium, and low range sensors, which are installed in the process and provide automatic switching.

15. Data collection system

Using MOXA C168H/PCI, MOXA C104H/PCI, PCI8360 data acquisition board to timely collect pressure, temperature, flow rate, oil, gas, water volume, etc.

16. Automatic control system

Computers can control the following external devices

⑴ Injection pump: Through the communication interface of the pump, the computer can control the injection flow rate of the pump;

⑵ Temperature: The heating temperature of the constant temperature box can be set and controlled by the computer through the RS232 interface on the temperature controller;

⑶ Ring pressure tracking: The computer automatically controls the opening and closing of the ring pressure pump and solenoid valve through the PCI8360 terminal board, maintaining the pressure difference between the displacement pressure and the ring pressure;

〔4〕 Automatic range switching control of pressure sensor;

Block diagram of collection, measurement and control system

17. Application software and data processing

The software runs in the Windows 7 environment and is programmed using VB. The workflow of the instrument is displayed on the interface, which enables human-machine dialogue. After the operator sets the parameters, unmanned operation can be achieved. The computer can automatically collect all pressure, temperature, and flow, and control the operation of the pump. The automatic tracking of the ring pressure pump and the direction change of the pressure reversing valve can also be achieved.

The data collected by the computer can be processed to generate raw data reports, analysis reports, and curve graphs. At the same time, database file formats can be generated, and EXCEL documents can be imported at any time for users to use flexibly.

Computer: Lenovo 4600, 19 '' LCD display

printer: HP1020

5、 Main technical features

1. The device adopts modular design and can be combined according to different experimental requirements;

2. Can simulate high-temperature and high-pressure displacement tests under geological conditions;

3. Key components are imported to improve the reliability and accuracy of testing;

4. Implement computer automation control, collection, and processing;

5. Track the injection pressure of the ring pressure and maintain a constant pressure difference;

6. Automatic range switching of pressure transmitter;

7. The structure of the instrument is reasonable, the appearance is beautiful and elegant, the operation is convenient, and it is durable;

8. The selection of parts is complete, and different specifications of models from our factory can be selected according to different experimental needs, making the instrument widely used in various experimental research fields.

9. Made of 316L material, corrosion-resistant;

6、 Security

The safe operation of instruments involves the personal safety of operators and the normal service life of instruments. The design fully considers their safety and operability

1. Pressure limit protection

Both the displacement pump and the ring pressure pump are designed with limit protection pressure. When the pump pressure reaches the limit protection pressure, the pump will automatically stop for protection.

Design safety valves at critical locations in the process, which can be opened for protection in the event of electronic protection failure, providing dual protection.

2. Temperature limit protection

The thermostat is designed with a maximum protection temperature. When the temperature inside the thermostat reaches the maximum protection temperature, the instrument automatically cuts off the power supply.

3. Leakage protection

When the instrument experiences leakage, it will automatically cut off the power protection.

The manufacturer reminds operators to pay attention to the following points:

*All types of instruments and computers must ensure correct power input and be equipped with automatic voltage stabilization protection devices.

*Ensure that all parts of the instrument have good grounding.

*The pressure of each part of the process manifold should not exceed the design pressure, especially not exceed the range of various detection instruments. Extra caution must be taken when using gas pressurization.

*The valve design of the instrument is manual operation. Please pre design the test process according to the test steps. Any valve operation error may lead to the failure of the entire test.

*When operating the system at high temperatures, insulated gloves must be worn to prevent burns.

Special attention: When heating, due to the expansion of the liquid caused by heat, the pressure increases. Always pay attention to the pressure of the liquid inside the container to prevent it from exceeding the container's operating pressure.