High temperature and high pressure heat tracking compensation adiabatic static oxidation and dynamic oxidation displacement device

Abstract

The invention relates to a high-temperature and high-pressure thermal tracking compensation heat insulation static oxidization and dynamic oxidization displacement device. The device comprises a model body, a swing control system, a temperature control system and a circuit protection system. The model body is provided with an air injection opening, an annular pressure opening, thermocoupler interfaces, a binding post, an extracting opening, a metal sleeve and thermocouplers. The air injection opening is internally provided with an igniter. The model body is internally provided with an annular pressure space communicated to the annular pressure opening. The metal sleeve is externally provided with compensation heating pieces. The thermolcouplers are inserted into the metal sleeve, a sample is arranged in the metal sleeve, and the thermocouplers are connected out through the thermocoupler interfaces. The high-temperature and high-pressure thermal tracking compensation heat insulation static oxidization and dynamic oxidization displacement device is used for oil deposit injected air low-temperature oxidation, high-temperature oxidation and combustion experiments, the crude oil recovery rate is increased through a low-temperature oxidation reaction or a high-temperature oxidation dynamic state or a combustion displacement test of crude oil and air, the defect that heat is lost in an existing experiment device is overcome, synchronous temperature rising of an experiment environment is achieved through the fast temperature compensation function, and the heat insulation experiment condition is achieved.

Description

technical field [0001] The invention relates to a high-temperature and high-pressure heat-tracking compensation adiabatic oxidation experiment device, in particular to a high-temperature and high-pressure heat-tracking compensation adiabatic static oxidation and dynamic oxidation displacement device for simulating an oil reservoir air injection crude oil oxidation experiment. Background technique [0002] In recent years, air injection in reservoirs has been proven to be an effective and potential technology for enhancing oil recovery. Whether the air injection technology can be effectively implemented depends on whether the oxygen can fully oxidize the formation crude oil. Therefore, it is of great significance to study the oxidation reaction of crude oil in air. [0003] At home and abroad, research and development of crude oil oxidation devices and displacement devices have been carried out and some achievements have been made, such as: crude oil low-temperature oxidatio...

AI Technical Summary

Problems solved by technology

The constant temperature controllable reactor can only study the static crude oil oxidation reaction at a constant temperature, which mainly has the following disadvantages: (1) It cannot simulate the process of dynamic displacement of crude oil by air; (2) The reactor cannot be adiabatic, and the heat released by the oxidation reaction will be transferred rapidly To the surrounding environment, heat is difficult to accumulate, so it is difficult to monitor the temperature change during the reaction process, and it is important to understand the temperature change during the reaction process to understand the crude oil oxidation reaction mode and reaction conditions; (3) due to the heat loss of the reactor Severe, so a continuous oxidation reaction cannot be achieved

Therefore, the existing experimental equipment cannot simulate the dynamic oxidation displacement process of reservoir air injection under adiabatic conditions

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