HKY-3 typeMulti function foam test and evaluation instrument

1、 Gong Gong ability

1. Experimental study on seepage characteristics of various oil displacement systems (such as polymer, foam, etc.) in porous media

⑴. Single tube core permeability experiment, calculate residual resistance coefficient and plugging rate;

⑵. Double or triple tube core experiments to determine the ability of liquid flow to redirect;

⑶. Conduct a sand filled model seepage experiment with multiple pressure measuring points to investigate the flow characteristics of the oil displacement system;

4. Cylindrical natural or artificial rock cores, rock core permeability experiments

2. Oil displacement experiment

Study various oil displacement tests such as water drive, polymer drive and foam drive, optimize the injection mode and slug size of foam agent, and determine the corresponding recovery factor and recovery enhancement value.

3. Used for other experimental studies such as formation sensitivity evaluation, damage evaluation, etc.

2、 Main technical indicators

1. Work pressure: displacement pressure of 30MPa, ring pressure of 40MPa, pressure measurement accuracy of 0.1% F · S;

2. Working temperature: 120 ℃, temperature control accuracy ± 1 ℃;

3. Displacement flow rate: 0.001-80mL/min, flow accuracy ± 0.3%;

4. Oil, gas, and water measurement: accuracy of 1%

3、 The functions and technical specifications of the components that make up the instrument

1. Inject into the system

Injection pump: To provide a power source for the experiment, a continuous non pulse, constant speed and constant pressure dual cylinder pump is selected. The pump has accurate measurement and high precision, with pressure protection and position upper and lower limit protection. It is made of 316L wetting material, corrosion-resistant, and has functions of suction, discharge, and pre pressurization. The direction change is controlled by an electromagnetic valve and a pneumatic valve. The pump is equipped with a communication port, which can be operated by a computer or manually.

Model: 1040, working pressure: 4200psi, flow rate: 0.001-80mL/min

Gas booster pump: continuously pressurize N2 to foam generator, and mix with foaming liquid to form foam. This pump is driven by ordinary compressed air with a driving pressure of 0.4-0.6MPa. It operates without electric sparks and can be used for boosting flammable and explosive gases. Gas flow control detector, used for precise measurement and control of gas flow, with instantaneous flow and cumulative flow display, can accurately measure the injection amount of gas, model DO7-12/ZM, flow rate 0-12Lm, repeatability accuracy ± 0.2% F · S, accuracy ± 1% F · S.

2. Intermediate container

Used for replacing fluids in storage liquid experiments. The main material is 316L, which is corrosion-resistant and heat-resistant. For containers storing chemical agents such as polymers and foaming liquids, a piston structure is used. To prevent high-pressure and high-temperature creep and liquid leakage, the piston structure is uniquely designed and adopts a new type of slip ring combination sealing structure from abroad. It has low sealing force, high working life, and can eliminate the crawling phenomenon during low-speed and low-pressure operation.

Temperature: 150 ℃, pressure: 32MPa.

3. Physical Model

Long tube model: A sand filled tube model is used, and a special roughening process is used along the length direction of the inner hole wall of the model tube to seal the boundary and prevent fluid from flowing along the boundary. Filter screens are installed on the inlet, outlet, and pressure measuring holes to prevent sand leakage and blockage of the pipeline. Multiple pressure measuring holes are designed along the length direction of the model tube, which can measure the pressure changes at each point during the displacement process. Used to determine the degree of blockage in each section of rock samples.

Specification: φ 25.4 × 500 (1000) Working pressure: 32MPa

4. foam generator

The unique design structure is adopted, and the gas is injected into the foaming liquid along the tangent direction to make the foaming liquid and gas rotate and fully mix. The porous sintering plate is installed on the top of the foaming liquid, and the gas liquid mixture forms rich foam after passing through. A high-pressure observation window is installed at the outlet of the foam generator to observe the stability of the formed foam.

Work pressure: 32MPa

5. Thermostatic box

To provide the required temperature environment for the experiment, the constant temperature box adopts hot air circulation and can be detached and moved for easy installation and maintenance. The inner surface material is stainless steel and the outer surface is sprayed with plastic.

Temperature: Room temperature~100 ℃, using PID regulation to control temperature, with a temperature control accuracy of ± 1 ℃

6. Backpressure control system

Composed of a back pressure valve, a back pressure buffer container, and a high-precision top loading back pressure valve, the back pressure buffer container can improve the precision of back pressure control.

Working pressure: 32MPa, control accuracy: 0.01MPa

7. Vacuum system

Composed of a vacuum pump, trolley, buffer container, vacuum gauge, etc. Can evacuate saturated water from processes, clamps, and sand filling pipes.

Vacuum Pump Model: 2XZB-2L Export Product High Quality

8. Pressure measurement system

Using high-precision pressure transmitters, in order to ensure testing accuracy, high, medium, and low range pressure transmitters can be used at each pressure measuring point, equipped with a reversing system to achieve automatic switching between pressure transmitters of different ranges. The pressure value is directly displayed by the secondary instrument and can be communicated with the computer through the RS232 interface.

Pressure transmitter range: 32MPa, 1MPa, 0.1MPa, measurement accuracy: 0.1% F · S

9. Data collection system

The data acquisition system is the key to the entire system, ensuring the testing accuracy of the entire system and realizing the intelligence of each system. This system mainly includes the formation of pressure signals, quality signals, flow signals, temperature signals, and interfaces with microcomputers. The system mainly uses HY1232 and MOXA C168H/PCI communication adapter cards, combined with acquisition software to achieve timely acquisition.

10. Application software and data processing

The software runs in the Windows 2000/XP 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 pressures and flow rates, control the operation of the pump, automatically track the ring pressure pump, and change the direction of the pressure reversing valve.

The data collected by computers can be processed to generate raw data reports, analysis reports, and curve graphs, while also generating database file formats for users to use flexibly.

IPC: P4、 Main frequency 2G, 256MB memory, 80GB hard drive, 17^∥liquid crystal display

printer: HP1010

11. Security alarm system

The instrument is equipped with a safety alarm system, which can set temperature and pressure alarm values. The instrument can alarm and automatically cut off power in case of overvoltage, overheating, etc., ensuring the safety of equipment and people.

4、 Technical features

⑴. Diversified modeling methods

According to the principle of reservoir exploitation, fully considering various factors, establishing a simulation system, applying system engineering methods, optimizing the design of experimental procedures, and facilitating various experiments.

⑵ Modular design

This device integrates machinery, electricity, and instrumentation, and adopts modular design to simulate pressure and temperature under geological conditions. It has designed long pipe models and heterogeneous models with certain characteristics, which can effectively solve the problems of model corrosion prevention, cross flow prevention, shear, and other factors.

⑶. Implement automated collection and control

Adopting advanced and reliable control hardware and software, utilizing reliable control methods to ensure stable and reliable system operation. To achieve the goal of unmanned operation.