HKY-1 gas driven multifunctional core displacement device

• 1、 Instrument functions

  This instrument can achieve the following functions under simulated formation pressure and temperature conditions:

  1Determination 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.

  2Evaluation of formation sensitivity (formation damage)

  Research on the harmfulness of foreign substances (such as water injection, oilfield chemicals, etc.) to the formation and technical research to avoid or mitigate damage.

  3Gas permeability measurement

• Gas permeability measurement can be performed on rock cores

• Gas driven multifunctional core displacement deviceMain technical indicators

1. working pressure:0~50MPA
2. Working temperature: room temperature~180℃
3. Drive traffic:0.01~9.99ml/min
4. Core clamp: φ25×100-300mm
5. Pressure measurement accuracy:FS1％
6. Temperature measurement accuracy: ±0.5℃
7. Oil, gas, and water measurement accuracy: gas0.01ml, Liquid0.01g

• Basic composition and structure of the instrument

The instrument 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:

Inject system:Composed of an injection pump, intermediate container, gas-liquid separator, gas pressure regulating system, pipe valves, etc., various fluids can be injected into the model at a certain flow rate.

Simulation system:It consists of a core gripper, a constant temperature box, an environmental pressure pump, a metering system, etc.

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

Auto-Control:The computer automatically controls the flow rate of the injection pump. Constant temperature box heating, etc.

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, and flow rate, and perform arithmetic processing on the data.

• Technical specifications of each component of the instrument

1. Injection Pump

Beijing satellite advection pump 1040 flow rate: 0~9.99ml pressure 40mpa

1. intermediate container

ZR-3Type piston type Volume:1000mlVoltage resistance:50MPA, Material:1Cr18Ni9Ti,quantity4only

Used for storing replacement media and serving as a buffer.

2、Gas humidifier: pressure50MPA, volume500mlquantity1The platform.

1. Gas pressure regulation system: divided into high and low levels of pressure regulation, using imported materialsTESCOMPressure regulating valve

entrance6000psi,Export0-500psi, one

entrance10000psiExport0-6000psi,One

1. Long core gripper, core specification φ25×500mm，3Uniform distribution of pressure measuring points, working pressure50MPA.
2. TY-2C Core Holderφ25×80mm
3. incubator
4. Mass flow meter D-200

Working temperature:180℃±1℃

Size inside the studio:1500×750×800mm(Length x Width x Height)

Front and rear doors, interior lighting, made of stainless steel material

Hot air circulation, usingPIDAdjust temperature control technology to achieve uniform temperature inside the box and high temperature control accuracy.

Install rolling casters for easy mobility.

1. Environmental pressure tracking pump

working pressure:60MPAUsed to apply circumferential pressure to the core gripper and seal the core. It can automatically track the inlet pressure of the rock core and maintain a certain pressure difference between the ring pressure and the displacement pressure. Control accuracy ±0.2MPA

1. Measurement system: including pressure measurement, temperature measurement, liquid flow measurement, oil gas water volume measurement, etc.

Pressure measurement: Measure pressure with a pressure transmitter. range60MPA. In total6A pressure measuring point.

Temperature measurement: usingPT100Temperature probe measures temperature. Measurement range: Room temperature-200℃

Liquid flow measurement: using a balance to measure liquid flow: Balance model:BS2202S.

Oil, gas and water volume measurement: The volume of oil and water at the outlet is measured by a balance volume, and the gas is measured by a mass gas flowmeter.

1. Automatic control system: capable of automatically controlling the flow rate of the injection pump, automatic tracking of environmental pressure, etc.
2. Data acquisition and processing system: composed of data acquisition board, data acquisition and processing software, computer, printer and other components, it can timely collect parameters such as pressure, temperature, flow rate, etc., and perform arithmetic processing on the data.

• Main technical features

1. The device adopts modular design and can be combined according to different experimental requirements;
2. Capable of conducting high-temperature and high-pressure displacement tests under simulated geological conditions;
3. The key components are imported, with extremely high reliability and accuracy in testing;
4. Realize computer automation control, acquisition, and processing;
5. Track the injection pressure of the ring pressure and maintain a constant pressure difference;
6. The structure of the instrument is reasonable, the appearance is beautiful and elegant, the operation is convenient, and it is durable and long-lasting;
7. We have a complete range of optional parts and can select models of different specifications from our factory according to different testing needs, making the instrument widely used in various experimental research fields.

• peaceful complete

The safe operation of the instrument involves the operator's personal safety and the normal service life of the instrument. The manufacturer reminds the operator to pay attention to the following points:

The internal instruments and computers of the instrument must ensure correct power input and must be equipped with automatic voltage regulation protection devices.

Each part of the instrument must be properly grounded.

The pressure of each part of the instrument 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.

The system must be equipped with insulated gloves during high-temperature operation to prevent burns.

Special attention: When heating, due to the expansion of the liquid caused by heat, the pressure increases. Therefore, the liquid in the container cannot be filled to prevent the pressure from being too high and exceeding the container's operating pressure.

• flow chart
• peaceful dress

All instruments have been installed and tested before leaving the factory. For the convenience of packaging and transportation, the instrument is divided into different parts for packaging. Please carefully refer to the flowchart during installation.

The installation work can also be jointly completed by the factory's technical personnel and the user, so that the user can further familiarize themselves with the instrument and facilitate normal maintenance in the future.

• basic operation

1. Rock sample preparation

（1）.Drilling and cutting of rock samples: drilling the rock sample into a diameter of φ25The cylinder is cut flat at both ends, and the cutting surface is perpendicular to the axis.

For the method of drilling rock samples, please refer toSY/T5336

(2).Wash oil for rock samples

Oil washing method according toSY/T5336execute

（3）.Drying of rock samples

The drying temperature of the rock sample is controlled at60~65℃, drying24hAfterwards, every8hWeigh once, and the difference between the two weighings is less than10mgRecord the measured quality of the rock sample.

（4）. Measuring the geometric dimensions of rock samples: length（L）Diameter（D）.

（5）Measurement of gas permeability in rock samples according toSY/T5336conduct.

（6）Extract saturated oil (water) from the rock sample, weigh it wet, and calculate the pore volume of the rock sample.

（7）Soak the saturated rock sample in oil (water) and set it aside.

2Process preparation

Ensure that the liquid in the storage container and various pumps is sufficient. If it is insufficient, please add it.

1. Installation of rock cores

Take out the pre saturated rock core from the beaker, place it in the clamp rubber sleeve, insert the clamp plug, and tighten the rock sample.

1. Seal the rock sample with ring pressure
2. Apply back pressure

Backpressure control is achieved by applying pressure to the back pressure valve, and the external control pressure is gas to ensure control accuracy.

1. Heating up

First, turn on the fan switch of the constant temperature box on the panel, then turn on the heating switch. Set the temperature to be heated on the temperature controller, and the temperature controller will automatically control the constant temperature box to reach the desired temperature.

The temperature setting method of the temperature controller is detailed in the temperature controller user manual

To stop heating, simply turn off the heating switch or set the temperature controller to a temperature lower than room temperature.

1. experimental evaluation

Various experimental methods are detailed in their experimental evaluation criteria.

11、 Wei protect

The constant speed pump needs to be cleaned regularly, and for detailed maintenance, please refer to the constant speed pump manual.

Electronic scales should avoid strong vibrations and must not be overloaded. For detailed precautions, please refer to the scale manual.

The computer equipped with this instrument is a dedicated controller for the instrument. Do not copy software randomly, especially those of unknown originUDisk and computer viruses may cause confusion and errors in control and data collection.

All parts of the instrument that come into contact with liquids are made of stainless steel, which has a certain degree of corrosion resistance, but it is not a one-time solution. The process manifold needs to be cleaned regularly, especially after injecting acid or other highly corrosive liquids, it should be immediately cleaned with clean water. When the process is not in use for a long time, fill the process manifold with oil or blow dry it with high-pressure air to prevent rust and corrosion.