Kinetics of carbonate dissolution and its effects on the porosity and permeability of consolidated porous media

Yasuda, Eric Yuji; Santos, Ronaldo Gonçalves dos; Trevisan, Osvair Vidal

doi:10.1016/j.petrol.2013.11.015

Cited by 13 publications

(7 citation statements)

References 8 publications

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“…where Arepresents the organic anion The dissolution rate of dolomite is generally slower than that of calcite and in acid solution is affected by the transport rate of the reactants, surface reaction, and transport rate of products away from the surface (Yasuda et al, 2013). The same as in the phosphate rock, the open system of columns used in this study ensured the removal of products and the supply of H + by citric acid solutions, so favouring the dissolution of dolostone.…”

Section: (Ii) Release Kinetics Of Ca and Mgmentioning

confidence: 99%

“…For instance, when apatites are exposed to citrate and oxalate ligands, the release of P and Ca is the highest (Goyne et al, 2006(Goyne et al, , 2010. Instead, the dissolution of calcareous minerals such as calcite (CaCO3) and dolomite [CaMg(CO3)2] depends on solution pH, pCO2, temperature, and mineral properties such as crystallinity (Yasuda et al, 2013) as well as specific surface area (van Straaten, 2002(van Straaten, , 2006(van Straaten, , 2007. Dolomite dissolution rates are usually lower than those of calcite (Liu et al, 2005;Dewaide et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

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Assessment of Potential Nutrient Release from Phosphate Rock and Dolostone for Application in Acid Soils

et al. 2018

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The aim of this study was to evaluate the feasibility of using phosphate rock and dolostone as fertilizer and amendment, respectively, for application in tropical acid soils. The dissolution of different particle-size fractions by water and citric acid was studied. Laboratory column experiments were run following a completely randomized design, by using 0.063 -0.25, 0.25 -0.5, and 0.5 -2 mm particle-size fractions of both rocks. Each rock particle-size was subjected to exhaustive dissolution with distilled water, citric acid solution at pH 4, and citric acid solution at pH 2, with the following extraction times: 1, 3, 5, 7, 12, 24, 72, 144, 240, and 360 h. The dissolution of both rocks depended on particle-size, leaching solution and extraction time. The dissolution rate of rock-forming minerals augmented as the specific surface area increased, corresponding to a decrease in particlesize. In all cases, the kinetics of release was characterized by two phases: 1) a first stage of rapid release that lasted 24 h, which would ensure short-term nutrient release, and 2) a second stage of slow release (after 24 h), representing the long-term nutrient release efficiency. Both rocks are suitable as slow release fertilizers in strongly acid soils and would ensure the replenishment of P, Ca, and Mg. A combination of fine and medium particle-size fractions should be used to ensure high nutrient release efficiency. Much work has to be done to assess the overall impact of considerable amounts of fresh rocks in soils.

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Section: (Ii) Release Kinetics Of Ca and Mgmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Assessment of Potential Nutrient Release from Phosphate Rock and Dolostone for Application in Acid Soils

et al. 2018

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“…Therefore, the cause of dissolution pores in deep carbonate reservoirs has become a hot study topic in petroleum geology. Many scholars believe that the dissolution of the quasi-synchronous period and supergene karst are of great significance to the carbonate reservoir (Yasuda et al, 2013;Luhmann et al, 2014;Li et al, 2019;Li et al, 2020;Tian et al, 2019). The main reason for the acceptance of this mechanism is that dissolution is easy to occur due to a large amount of fresh water on the surface (Cai et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Experimental analysis of dissolution reconstruction of deep dolomite reservoirs: A case study of the Cambrian dolomite reservoirs in the Tarim Basin

Zhang

Li²,

Peng³

et al. 2022

Front. Earth Sci.

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The deeply buried carbonate reservoir of Cambrian is an important target of oil and gas exploration in the Tarim Basin. Understanding the dissolution mechanism of the deep-buried carbonate reservoir is an urgent problem to be solved. In this study, 11 carbonate samples from three types of deep reservoirs in Tarim Basin were selected as experimental objects, and the dissolution process of carbonate reservoir was simulated by using an advanced reaction system of continuous flow at high temperature and high pressure. The dissolution test of continuous flow shows that the burial depth has an effect on carbonate dissolution, with the increasing of the depths from shallow to deep, the dissolution ability of acidic fluids in carbonate rocks increases first and then decreases. A comparison of dissolution results from different lithologic samples shows that the incomplete dolomitization calcite in the diagenetic stage provides the material basis for dissolution in the later stage. The relationship between reservoir type and physical property is discussed, and it is found that the permeability of the fracture-type and pore-fracture samples increase significantly after dissolution, indicating the pre-existing pores of carbonate rocks may be critical to the formation of high-quality reservoirs in deeply buried conditions. An interesting phenomenon was found by comparing the dissolution rates of experimental samples shows that the dissolution rate of dolomite reservoir has a trend of first increasing and then decreasing under the deeply buried environment, which proves that there is an optimal dissolution range of dolomite in the deeply buried environment, which is conducive to the formation of dolomite reservoir. The genetic model of burial dissolution in deep carbonate reservoirs was established and indicated that the search for dolostone reservoirs near the Himalayan fault may be a new idea for Cambrian deep oil and gas exploration.

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“…The formation and evolution of reservoir porosity are the topic of carbonate reservoir research and constitute the premise for the efficiency improvement of oil and gas exploration [5,[8][9][10]. In carbonate reservoirs, reservoir porosity evolution is mainly the result of carbonate minerals dissolution and precipitation, such as dolomitization [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Effects of Dolomitization on Porosity during Various Sedimentation-Diagenesis Processes in Carbonate Reservoirs

et al. 2020

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Carbonate reservoirs, especially dolomite reservoirs, contain large reserves of oil and gas. The complex diagenesis is quite challenging to document the dolomite reservoirs formation and evolution mechanism. Porosity development and evolution in dolomite reservoirs primarily reflect the comprehensive effect of mineral dissolution/precipitation during dolomitization. In this study, multicomponent multiphase flow and solute transport simulation was employed to investigate dolomitization in the deep carbonate strata of the Tarim Basin, Northwest China, where active exploration is currently under way. One- and two-dimensional numerical models with various temperatures, fluid compositions and hydrodynamic characteristics were established to quantificationally study dolomitization and its effect on porosity. After determining the main control factors, detailed petrologic characteristics in the studied area were also analyzed to establish four corresponding diagenetic numerical models under different sedimentary environments. These models enabled a systematic analysis of mineral dissolution/precipitation and a quantitative recovery of porosity evolution during various sedimentation-diagenesis processes. The results allowed for a quantitative evaluation and prediction of reservoir porosity, which would provide a basis for further oil and gas exploration in deep carbonate reservoirs.

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Kinetics of carbonate dissolution and its effects on the porosity and permeability of consolidated porous media

Cited by 13 publications

References 8 publications

Assessment of Potential Nutrient Release from Phosphate Rock and Dolostone for Application in Acid Soils

Assessment of Potential Nutrient Release from Phosphate Rock and Dolostone for Application in Acid Soils

Experimental analysis of dissolution reconstruction of deep dolomite reservoirs: A case study of the Cambrian dolomite reservoirs in the Tarim Basin

Effects of Dolomitization on Porosity during Various Sedimentation-Diagenesis Processes in Carbonate Reservoirs

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