Device and method for accurately measuring reaction speed and kinetic parameters of deep high-temperature acid rock

Abstract

The invention discloses a deep high-temperature acid rock reaction speed and kinetic parameter accurate determination device and method, and the device comprises a reaction kettle, a pressure control assembly for regulating and controlling the pressure in the reaction kettle, a temperature control assembly for regulating and controlling the temperature in the reaction kettle, a stirring assembly for stirring an acid solution in the reaction kettle, and a sampling tube. The device further comprises a rock sample box located in the reaction kettle, the rock sample box is provided with a cavity for containing a rock sample and a notch for acid liquor to enter, and an upper cover of the reaction kettle is connected with a lifting assembly for driving the rock sample box to ascend and descend. When the device is used for experimental determination, the rock sample box is driven to ascend and descend through the lifting assembly, after the temperature of a solution in the kettle rises to the experimental temperature, the rock sample box is lowered to the position below the liquid level for a contact reaction, and the starting time of the acid rock reaction and the subsequent interval sampling time can be accurately controlled.

Description

technical field [0001] The invention relates to the technical field of measuring carbonate rock reservoirs, in particular to a device and method for accurately measuring the reaction speed and kinetic parameters of deep high-temperature acid rocks. Background technique [0002] Carbonate reservoirs are the main reservoirs of deep geothermal energy. Large-scale development and utilization are of great significance for alleviating energy pressure and helping the realization of the "double carbon" goal. However, this type of reservoir is often very heterogeneous due to the development of natural fractures, and the development blocks and individual development wells are likely to be distributed in locations with poor porosity and permeability conditions, which cannot meet the needs of large-scale development, so reservoir reconstruction is required To improve productivity, acidizing and acid fracturing are one of the most important ways to improve carbonate reservoirs. [0003]...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a measurement device and method for simulating the reaction between carbonatite reservoirs and acid liquid under high temperature and high pressure formation conditions, so as to solve the problem that the existing measurement devices cannot accurately control the start time, reaction speed and power of acid rock reaction. The problem of inaccurate determination of chemical parameters

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