Laboratory Methods for Scale Inhibitor Selection for HP/HT Fields

Daniels, J. K.; Littlehales, Ian; Lau, L..; Linares-Samaniego, Sandra

doi:10.2118/169774-ms

Cited by 5 publications

(1 citation statement)

References 10 publications

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“…e MIC represents the minimum effective concentration of chemical scale inhibitors to prevent scaling in industrial processes [13,14]. Recent findings have shown that the chemicals, as mentioned above, pose a great concern to the environment and public health and are also very expensive [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Application of Ultraviolet Radiation to Control the Calcium Carbonate Scale Formation and Deposition on the Membranes

Basheer

Deen

Al-Mutairi

et al. 2020

Journal of Chemistry

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Scale formation on surfaces in contact with water supersaturated with calcium carbonate creates technical problems, including heat transfer hindrance, energy consumption, and equipment shutdown. Thus, nowadays, there is an increasing need for new approaches that are environmentally friendly and economically feasible. In this work, for the first time, calcium carbonate growth was investigated using UV light exposure, and the growth rate was compared with control and commercial antiscalant. Saturated calcium carbonate samples were exposed to UV radiation; the growth rate of calcium carbonate crystals was monitored at different time intervals. Results clearly show that about 85% decrease in crystal growth rate was observed when compared to 43% after the addition of 3 mg/L of amino tris(methylene phosphonic acid) antiscalant. Calcium carbonate scale deposition on hydrophobic and hydrophilic membranes was investigated. The amount of scale deposited in the case of a UV-treated sample is insignificant when compared to control samples. Thus, the exposure of UV might help to improve the membranes’ lifetime. X-ray diffraction and scanning electron microscopy analyses revealed that UV light treatment produced mostly calcite crystals. The produced calcites are less dense and less adherent, and it can be easily removable when compared to other types of calcium carbonate phases. Thus, UV radiation is an efficient green approach for calcium carbonate scale mitigation on membrane surfaces.

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Section: Introductionmentioning

confidence: 99%

Application of Ultraviolet Radiation to Control the Calcium Carbonate Scale Formation and Deposition on the Membranes

Basheer

Deen

Al-Mutairi

et al. 2020

Journal of Chemistry

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Effect of Pretreatment Process on Scale Formation in the Re-Boiler Section of Monoethylene Glycol Regeneration Plant

Helal

Soames

Iglauer

et al. 2019

IOP Conf. Ser.: Mater. Sci. Eng.

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Prevention of Calcium Carbonate Precipitation during Water Injection into High-Pressure High-Temperature Wells

Khormali

Petrakov

Lamidi

et al. 2015

SPE European Formation Damage Conference and Exhibition

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Complex technical problems, including salt precipitation, can occur during the entire period of the operation and production of the oil from reservoirs in high-pressure/high-temperature (HPHT) condition. Inorganic salts deposition occurs during the mixtures of different waters, which are incompatible with each other. These combinations of waters mostly can be done during waterflooding into the reservoirs to pressure maintenance. For the effective development of oil reservoirs, which are associated with the deposition of inorganic salts in HPHT, the selection of inhibitors is required to prevent scaling accounts for the characteristics of the reservoirs. Effectiveness of the scale inhibitors concentration for specific well conditions is verified by laboratory tests, considering total dissolved salts and hydrochemical conditions of the formation. The amount of calcium carbonate (CaCO3)) precipitation in synthetic formation water was investigated in mixing with the injected water in the range of 100-200°C for temperature and 40-70 MPa for pressure. Also, calcium carbonate precipitation was considered in a well at 200°C and 70 MPa in a simulation model with an electrical submersible pump (ESP). The results of the experiments showed that the possibility of calcium carbonate deposition was increased by growing the amount of the formation water and temperature. Increasing the pressure had reverse effect on scale formation. In this investigation, a new inhibitory chemical composition was developed. This scale inhibitor is based on the aqueous solutions of different acids and isopropyl alcohol. The inhibitor was considered for compatibility with formation water and core samples; and it was compatible with them at reservoir condition. The new scale inhibitor had a greater inhibition efficiency and low permeability damage in comparison with the tested inhibitors. The used materials were effective for scale prevention at high-level. The synergistic inhibitory effect has been considered for mixtures of inhibitors.

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Laboratory Methods for Scale Inhibitor Selection for HP/HT Fields

Cited by 5 publications

References 10 publications

Application of Ultraviolet Radiation to Control the Calcium Carbonate Scale Formation and Deposition on the Membranes

Application of Ultraviolet Radiation to Control the Calcium Carbonate Scale Formation and Deposition on the Membranes

Effect of Pretreatment Process on Scale Formation in the Re-Boiler Section of Monoethylene Glycol Regeneration Plant

Prevention of Calcium Carbonate Precipitation during Water Injection into High-Pressure High-Temperature Wells

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