Multi-functional Core Drivability Device Manufacturer, Jiangsu Multi-functional Core Drivability Device Manufacturer, Hainan Petroleum Instruments - This device is an intelligent instrument primarily used under laboratory conditions to perform various displacements on cores. I. Instrument Principle: It simulates reservoir parameters such as temperature, overburden pressure, formation pressure, and flow conditions, and records and processes the changes produced by displacement through precise measurement means, conducting various displacement experiments for research, providing construction guidance for actual production. II. Main Functions: 1. Basic fluidity experiments (including gradient experiments) 2. Relative permeability tests for oil and water 3. Core sensitivity evaluation tests 4. Oil recovery chemical agent evaluation tests III. Main Technical Parameters: 1. System pressure resistance: 50MPa 2. Working pressure: 40MPa, pressure measurement accuracy 0.25% 3. Working temperature: Room temperature to 150℃ 4. Flow range: 0-30ml/min, flow accuracy 1% 5. Balance: Range 400g, resolution 0.001g, two units 6. Core size: φ25×25-500mm IV. Main Components: 1. Power source system: The device provides two reciprocating pumps and one high-viscosity pump as the power source for the system displacement experiment, with one having a flow range of 0-20ml/min and pressure range 0-20MPa, and the other with a flow range of 0-10ml/min and pressure range 0-40MPa, ensuring a total pressure range of 0-40MPa and a total flow range of 0-30ml/min, which should meet the needs of the experiment well. 2. Storage system: As the experiment may require certain experimental solutions as well as oil and water, the device is equipped with three 1L capacity containers for exchange use. Considering the use of corrosive fluids in the experiment, the device is also equipped with two 200ml small piston-type intermediate containers for small-scale corrosive fluid slug experiments. 3. Experimental process: The experimental process is designed as a double gripper parallel and series process, which can simulate displacement and injection conditions under heterogeneous conditions (double grippers high-permeability, low-permeability parallel), and can also be used with double grippers in series. 4. Core holder and sand filling model: Equipped with two φ25×75mm core holders for flow tests, two φ25×500mm sand filling pipes for sand filling tests. The instrument also has one φ25×500mm gradient holder with 3 pressure measurement holes for gradient experiments. 5. Temperature environment simulation system: Mainly includes a constant-temperature box and the corresponding control system, with a working temperature of 0-200℃, and temperature control accuracy ±1℃. 6. Automatic confining pressure control system: Confining pressure pump pressure 50MPa, pump body volume 200ml. It has three operating modes: manual, electric, and automatic, and can achieve three levels of speed: high, medium, and low. 7. Automatic pressure identification and measurement system: Uses a pressure sensor array to measure working pressure, with two sensors equipped at each pressure measurement point to form a sensor array. The two sensors adopt a series stepped measurement method, connected in series with an electromagnetic valve in the middle. 8. Oil-water outlet measurement system: Measured by two balances, with a range of 400g and a resolution of 0.001g. 9. Vacuum system: This device provides a vacuum system, installed on a movable trolley, mainly consisting of a vacuum pump, buffer container, vacuum gauge, vent valve, and drain valve. 10. Data collection, processing, and control module: Includes a computer, collection system, printer, and data collection, processing, and control software. The software is programmed in VB6, covering relative permeability, oil recovery chemistry, flow, and five-sensitivity software. Foam oil displacement simulation device - Foams have a high viscosity and a strong reducing effect on gas phase permeability. Foam acid fracturing technology is a new acid fracturing增产 technology developed in recent years for low-permeability, low-pressure, water-sensitive formations. Currently, some developed oil-producing countries (such as the United States, Canada, etc.) have extensively used nitrogen foam displacement to improve oil recovery with good results. Foams have two main functions: 1. Increase crude oil recovery 2. Work with acid to perform temporary plugging and acid fracturing. Main technical parameters: Instrument pressure resistance: 50MPa Flow displacement pressure: 40MPa Working temperature: Room temperature to 150℃ Heating power: 5KW Flow range: 0-107ml/min