The Development Of Multifunctional Core Displacement

In today’s world, petroleum resource is shortage, after first mining and second mining, there still have more than half of the oil remains underground, so it must starts third time to improve the recovery of oil drilling, but at the moment, useing a conventional method can not mining or mining inefficiency, we must use more complex technology means than water injection and note gas to recovery. At present, three mining has many methods, for example, asp flooding, polymer flooding, foam flooding, etc. As the saying goes:If you have no hand you can’t make a fist, although there have three times of the theory and method of mining, we but must have a set of experimental apparatus to make these methods be put into practice. The core displacement is for instrument eor combining theory with practice product, which according to drive mechanism and principle for similar simulation of geological strata temperature and pressure conditions, with the aid of computer, sensor technology, the simulation oil displacement system in porous media seepage characteristics, such as oil displacement efficiency, it can then in simulating various stratum condition assessment oil displacement effect.This topic according to the experiment tertiary oil recovery mechanism, developed a set of research can be flooding seepage characteristics and the oil displacement effect of instrument (the core displacement for instrument), from the hardware system and PC control system two aspects of the core displacement is for the function module part of the working principle, design process of the system analyzed in detail. The design of the hardware system mainly includes: power supply system, injection flooding, ring crush for system tracking system, the oven temperature system and differential pressure monitoring system several aspects, gives each link solutions, including design ideas, circuit principle, components of choice and so on; The computer measurement and control system of the company is based on the NI LabWindows/Cvi measurement and control software development formed, used to realize human-machine interaction, the main finish the experiment data acquisition and processing, the process control such tasks, greatly enhancing the automation degree of the instrument, provide the perfect for experimental data services.