Core high temperature and high pressure casting instrument

Abstract

The invention relates to a core high-temperature and high-pressure casting machine which comprises a displacement pump, a rock sample container, a sample container, a vacuum pump and a PLC (Programmable Logic Controller) control system, wherein the PLC control system comprises a PLC, a touch screen, a motor controller and an analog quantity module; the touch screen, the motor controller and the analog quantity module are connected by the PLC; the analog quantity module is connected with a pressure sensor and a temperature control module which is connected with a temperature sensor; the PLC is in control connection with a heating ring and the vacuum pump; the pressure sensor is connected with the displacement pump which is driven by a motor controlled by the motor controller; the temperature sensor and the heating ring are arranged on the circumferential outer wall of the rock sample container. The core high-temperature and high-pressure casting machine can be used for overcoming the defects of low working efficiency, low ultimate pressure and the like of a traditional casting machine and has the advantages of easiness in operation, strong practicability, high efficiency, high injection pressure, rapidity in vacuumization and the like, and the whole flow is intelligentized by using the core high-temperature and high-pressure casting machine.

Description

technical field [0001] The invention belongs to the petroleum testing technology in the petroleum industry, and relates to a high-temperature and high-pressure casting instrument for rock cores. Background technique [0002] The casting instrument is a device for injecting colored liquid glue into the rock pore space. Under the condition of high temperature and high pressure in vacuum, the colored liquid glue can fully enter the medium pore throat, and then let it solidify at a certain temperature. , can be made into casting thin slices, because the rock pores are filled with colored glue, so it is very eye-catching and easy to identify under the microscope. The channel, coordination number, fracture length and width, fracture ratio, etc. provide effective ways, and provide important and reliable indicators for comprehensive evaluation of reservoirs. Therefore, the casting instrument is an important instrument for studying rock storage performance. [0003] The currently w...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a core high temperature and high pressure casting instrument to solve the problems of low work efficiency, instability and poor practicability caused by the manual operation of the existing core casting instrument

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