CT core scanning displacement system equipment CT core scanning displacement system device

1、 Main technical indicators

1. Working pressure: 32MPa, accuracy 0.1% FS

2. Working temperature: 150 ℃, accuracy ± 1 ℃

3. Applicable core specifications: Φ 25 × 200-300mm (depending on the size of the CT scanner)

4. Displacement flow rate: 0.0001-40ml/min

2、 Basic composition and structure of the instrument

The instrument mainly consists of an injection system, a modeling system, a measurement system, an automatic control system, and a data acquisition and processing system. See workflow for details:

Injection system: composed of injection pump, intermediate container, steam generator, and pipe valve components, it can inject various fluids into the model at a certain flow rate.

Simulation system: composed of PEEK core gripper, annular pressure medium circulation heating system, annular pressure pump, back pressure system, etc.

Measurement system: including pressure measurement, temperature measurement, flow measurement, oil-water volume measurement, etc.

Automatic control: The computer automatically controls the flow rate of the injection pump, the ring pressure pump automatically tracks the internal pressure, and the ring pressure medium automatically circulates and heats up.

Data collection and processing: composed of various data collection cards, computers, printers, and collection and processing software, it can timely collect pressure, temperature, flow rate, etc

Measure parameters such as oil-water volume and perform computational processing on the data.

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

1. Injection pump

ISCO pump from the United States, model 100DX, dual cylinder, working pressure 10000psi, flow rate 0.0001-40ml/min

The pump can be operated by a computer or manually operated on a panel.

2. Intermediate container

ZR-3 piston type intermediate container: volume: 1000mL, pressure resistance: 32MPa, material: 316L, 4 pieces

Used for storing replacement media and serving as a buffer.

3. Steam generator

User provided

4. CT scan core holder

Core specification: Φ 25 × 80mm

Pressure: 32MPa

PEEK material production

Circulating water jacket heating

5. CT scanner

User provided

6. Environmental pressure tracking pump

The ring pressure tracking pump automatically tracks the displacement pressure and maintains the pressure difference between the displacement pressure and the ring pressure.

The working pressure of the ring pressure tracking pump is 60MPa, with a control accuracy of 0.05MPa.

7. Loop pressure medium circulation heating system

Used to heat the gripper

Working pressure 60MPa

Working at 150 ℃

Heat the annular pressure medium in the high-pressure circulation pump and transfer the heat to the gripper through the high-pressure circulation pump.

8. Backpressure control system

Used to control the outlet pressure of rock cores, with a control range of 0-32MPa

Backpressure pump: working pressure 32MPa

Backpressure buffer container: ZR-2 type, 500mL, 32MPa

Backpressure valve: Top loading type, 32Mpa,

9. Measurement system

Pressure measurement: pressure transmitters at each pressure measuring point: accuracy 0.25,

Two units each with a range of 0-30 MPa, 0-6 MPa, and 0-0.5 MPa.

All pressures are displayed using an NHR-5100 pressure digital display, or can be collected by a computer through the RS232 port on the digital display.

Temperature measurement: PT100 temperature probe and XMT-7512ZX-RZ temperature controller are used to set, control, and measure temperature. The temperature can also be set and collected by a computer. Accuracy 0.1 ℃

Liquid flow measurement: The liquid flow rate is calculated using the balance weighing method. Sartorius balance, model: BS2202S， Range 2200g, accuracy 0.01g, computer automatically collects and calculates flow values.

Automatic oil-water measurement: The camera method is used to measure the volume of oil-water at the outlet.

The oil-water automatic measuring device consists of a specially designed measuring tube, imaging system, tracking system, image analysis and processing system, etc. The oil and water expelled from the model enter the measuring tube, and the oil and water levels are tracked and imaged by the camera and sent to the computer for calculation of the oil and water volume by the image analysis and processing system. Due to the use of a specially designed measuring tube, the measurement of emulsified oil and water is not affected. It is currently one of the more advanced methods for measuring oil, gas, and water both domestically and internationally.

10. Data collection system

Use MOXA C168H/PCI and MOXA C104H/PCI data acquisition boards to timely collect pressure, temperature, and flow rate.

11. 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 PCI 8360 terminal board, maintaining the pressure difference between the displacement pressure and the ring pressure.

Replacement system equipment device

1、 Main technical indicators

1. Working pressure: 32MPa, accuracy 0.1% FS

2. Working temperature: 150 ℃, accuracy ± 1 ℃

3. Applicable core specifications: Φ 25 × 200-300mm (depending on the size of the CT scanner)

4. Displacement flow rate: 0.0001-40ml/min

2、 Basic composition and structure of the instrument

The instrument mainly consists of an injection system, a modeling system, a measurement system, an automatic control system, and a data acquisition and processing system. See workflow for details:

Injection system: composed of injection pump, intermediate container, steam generator, and pipe valve components, it can inject various fluids into the model at a certain flow rate.

Simulation system: composed of PEEK core gripper, annular pressure medium circulation heating system, annular pressure pump, back pressure system, etc.

Measurement system: including pressure measurement, temperature measurement, flow measurement, oil-water volume measurement, etc.

Automatic control: The computer automatically controls the flow rate of the injection pump, the ring pressure pump automatically tracks the internal pressure, and the ring pressure medium automatically circulates and heats up.

Data collection and processing: composed of various data collection cards, computers, printers, and collection and processing software, it can timely collect pressure, temperature, flow rate, etc

Measure parameters such as oil-water volume and perform computational processing on the data.

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

1. Injection pump

ISCO pump from the United States, model 100DX, dual cylinder, working pressure 10000psi, flow rate 0.0001-40ml/min

The pump can be operated by a computer or manually operated on a panel.

2. Intermediate container

ZR-3 piston type intermediate container: volume: 1000mL, pressure resistance: 32MPa, material: 316L, 4 pieces

Used for storing replacement media and serving as a buffer.

3. Steam generator

User provided

4. CT scan core holder

Core specification: Φ 25 × 80mm

Pressure: 32MPa

PEEK material production

Circulating water jacket heating

5. CT scanner

User provided

6. Environmental pressure tracking pump

The ring pressure tracking pump automatically tracks the displacement pressure and maintains the pressure difference between the displacement pressure and the ring pressure.

The working pressure of the ring pressure tracking pump is 60MPa, with a control accuracy of 0.05MPa.

7. Loop pressure medium circulation heating system

Used to heat the gripper

Working pressure 60MPa

Working at 150 ℃

Heat the annular pressure medium in the high-pressure circulation pump and transfer the heat to the gripper through the high-pressure circulation pump.

8. Backpressure control system

Used to control the outlet pressure of rock cores, with a control range of 0-32MPa

Backpressure pump: working pressure 32MPa

Backpressure buffer container: ZR-2 type, 500mL, 32MPa

Backpressure valve: Top loading type, 32Mpa,

9. Measurement system

Pressure measurement: pressure transmitters at each pressure measuring point: accuracy 0.25,

Two units each with a range of 0-30 MPa, 0-6 MPa, and 0-0.5 MPa.

All pressures are displayed using an NHR-5100 pressure digital display, or can be collected by a computer through the RS232 port on the digital display.

Temperature measurement: PT100 temperature probe and XMT-7512ZX-RZ temperature controller are used to set, control, and measure temperature. The temperature can also be set and collected by a computer. Accuracy 0.1 ℃

Liquid flow measurement: The liquid flow rate is calculated using the balance weighing method. Sartorius balance, model: BS2202S， Range 2200g, accuracy 0.01g, computer automatically collects and calculates flow values.

Automatic oil-water measurement: The camera method is used to measure the volume of oil-water at the outlet.

The oil-water automatic measuring device consists of a specially designed measuring tube, imaging system, tracking system, image analysis and processing system, etc. The oil and water expelled from the model enter the measuring tube, and the oil and water levels are tracked and imaged by the camera and sent to the computer for calculation of the oil and water volume by the image analysis and processing system. Due to the use of a specially designed measuring tube, the measurement of emulsified oil and water is not affected. It is currently one of the more advanced methods for measuring oil, gas, and water both domestically and internationally.

10. Data collection system

Use MOXA C168H/PCI and MOXA C104H/PCI data acquisition boards to timely collect pressure, temperature, and flow rate.

11. 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 PCI 8360 terminal board, maintaining the pressure difference between the displacement pressure and the ring pressure.