Laboratory study of carbonaceous rock permeability under the impact of high temperatures

Аuthors

Lipatov N. V.

OOO «Coretest service», Tyumen, 625003, Russia

e-mail: Lipatov.n.v@mail.ru

Abstract

The temperatures level’s impact on the carbonate samples permeability was experimentally analyzed in the course of the study. At each temperature level, the applied limiting pressure was within the range of 10–30 MPa, and hydraulic pressure at the inlet was being varied below the corresponding limiting pressure.

The purpose of this work consists in studying the carbonates permeability under the impact of high temperatures. Let us regard the main stages. At first, cylindrical samples of 30×60 mm, which were being exposed to various temperatures, were prepared. Secondly, a series of hydromechanical tests were conducted with account for various input hydraulic pressures and an increase in the limiting pressure from 10 MPa to 30 MPa. Thirdly, the equivalent permeability of carbonates as a function of temperature and limiting pressure is being analyzed.

Keywords:

carbonate rocks, permeability, temperature levels, hydraulic pressure, equivalent, carbonate samples

References

1. Ozguven A., Ozcelik Y. Influence of high temperature on physical and mechanical properties of rocks. Eng. GEOL., England, 2014, pp. 127‒136.

2. Liu R., Li B., Jiang Y., Yu L. Numerical approach to estimating the effect of shear on equivalent permeability and nonlinear flow characteristics in a two-dimensional crack network. Germany, 2018, pp. 289‒300.

3. GOST 21153.0-75. Sampling and General requirements for test methods / State Committee of the USSR for standards, Moscow, 1975, pp. 6‒7.

4. Sun H., Sun Q., Deng W., Zhang W., Lü C. Influence of temperature on microstructure and p-wave propagation in Sandstone. Eng. England, 2017, pp. 913‒922.

5. Griffiths L., Lengliné O., Heap M. J., Baud P., Schmittbuhl J. Cracking of granite under thermal stress. Eng. England, 2005, pp. 138‒150.

6. Pereira A.H.A., Miyaji D.Y., Cabrelon M.D., Medeiros J., Rodrigues J.A. Experimental study of mechanical behavior under conditions of Sandstone unloading after high-temperature treatment. Eng. England, 2016, pp. 449‒456.