An automatic control experimental device for kinetic parameters of acid rock reaction

Abstract

The invention discloses an automatically controlled acid-rock reaction kinetic parameter experimental apparatus, which belongs to the technical field of petroleum engineering. The objective of the invention is to overcome the technical problems of inaccurate measured kinetic parameters and discontinuous experiment operation caused by easy fluctuation of temperature and pressure in a reaction vessel in the prior art. The apparatus comprises a high pressure reaction vessel with a self-heating function; the high pressure reaction vessel is respectively connected with a pressure stabilizing system, a preheating system and a sampling system; the top of the high pressure reaction vessel is provided with a mixer shaft, the lower end of the mixer shaft extends into the high pressure reaction vessel and is provided with a thermoplastic pipe, and the upper end of the mixer shaft is in transmission connection with the output shaft of an agitator motor. The apparatus provided by the invention enables experimental conditions of an acid-rock reaction to be automatically controlled in the states of constant temperature and constant pressure, improves accuracy of determination of each kinetic parameter and continuity of experiment operation, is applicable to experimental determination of acid-rock reaction kinetic parameters in petroleum engineering and has high determination precision and a high automation degree.

Description

technical field [0001] The invention relates to an experimental device, in particular to an automatically controlled experimental device for kinetic parameters of acid rock reaction, which belongs to the field of petroleum engineering. Background technique [0002] With the deepening of domestic oilfield exploration and development, carbonate reservoirs and complex lithology reservoirs have increasingly become the main reservoir types and newly added reserves. effective measures. The reaction rate of acid rock determines the effective action distance of acid liquid and the etching pattern of fracture wall, thus determines the conductivity of fracture after acid fracturing, and is the key factor that ultimately affects the effect of acid fracturing. However, under different temperature and pressure conditions, studying the reaction kinetic parameters of different types of acid fluids and rocks is of great significance for improving the effect of acid fracturing reservoir sti...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a kind of automatically controlled acid rock reaction kinetic parameter experiment device, solve the dynamic parameter of measurement inaccurate, Technical issues with discontinuous experimental operations

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