Laboratory simulation of karst media dissolution: an experimental approach and a case study

Taheri, Milad; Ghobadi, M. H.; Yari, Mehrdad; Taheri, Kamal

doi:10.1007/s13146-017-0347-4

Cited by 5 publications

(2 citation statements)

References 44 publications

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“…The study of a single mineral’s characteristics of dissolution under the control of a single factor in the research has advanced to the simulation of seepage and dissolution in the rock under the joint control of multiple means. Experimental conditions have evolved from early low-temperature, low-pressure conditions [ 17 , 18 ] to high-temperature, high-pressure conditions [ 19 , 20 , 21 ] and from closed-system, static conditions [ 22 , 23 ] to open-system, flow conditions [ 24 , 25 , 26 ]. Rock samples from limestone, dolomite, and other different sources [ 27 ], different types [ 28 , 29 , 30 , 31 ], and different types of seawater, acetic acid, natural water body, and CO 2 water solutions [ 30 , 32 , 33 , 34 , 35 ] are gradually increasing.…”

Section: Introductionmentioning

confidence: 99%

“…Many scholars performed an experimental study by self-designing experimental equipment, constantly updating and enhancing various control factors of the experiment from the standpoints of solution preparation, pressure system, and hydrodynamic system, and further exploring the dissolution effect of multifactor coupling of carbonate rocks. There are two solution preparation systems: organic acid preparation [ 46 , 47 ] and carbonic acid solution preparation [ 22 ]. The most common organic acid in buried diagenetic oilfield water is acetic acid, which is produced from deionized water and pure acetic acid reagent.…”

Section: Introductionmentioning

confidence: 99%

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Development and Application of Carbonate Dissolution Test Equipment under Thermal–Hydraulic–Chemical Coupling Condition

et al. 2022

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The latest continuous flow micro reaction technology was adopted to independently develop carbonate rock dissolution test equipment. Carbonate rock dissolution tests were conducted under different temperatures, flow rates, and dynamic water pressure conditions to study the dissolution process of carbonate rocks under the coupling of heat-water-chemistry. The dissolution effect and development law of carbonate rocks were explored by quantitatively studying carbonate rock dissolution rate and chemical composition of karst water. The results showed that the self-designed dissolution test equipment has obvious advantages. After dissolution, carbonate rock specimens were damaged to varying degrees. The dissolution rate was proportional to water velocity and hydrodynamic pressure, with the velocity effect being greater than the hydrodynamic pressure effect. The pH value, conductivity, and Ca2+ ion content of the reaction solution gradually increased after dissolution. The development and application of the equipment have proved that, at low dynamic water pressures (2 MPa), the water flow velocity effect on the dissolution velocity was 1.5 times that when the dynamic water pressure was high (6 MPa); at a low water flow velocity of 15 mL/min, the dynamic water pressure effect on the dissolution velocity was three times that when the water flow velocity was high (75 mL/min). The development process is gradually becoming strong and stable. Its research has important theoretical significance and engineering application value to provide technical means and guarantee for the early identification, karst development, and safety evaluation of karst geological disasters.

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