Environmental impacts related to drilling fluid waste and treatment methods: A critical review

Pereira, Laíne B.; Sad, Cristina M. S.; Castro, Eustáquio Vinícius Ribeiro de; Filgueiras, Paulo R.; Lacerda, Valdemar

doi:10.1016/j.fuel.2021.122301

Cited by 55 publications

(20 citation statements)

References 46 publications

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“…However, oil- based drilling fluids are costly and pose significant environmental pollution risks. 49 Using the inhibitor developed in this research as the hydration expansion inhibitor of WBDFs can reduce the drilling cost and contribute to environmental protection. In addition, researchers have demonstrated that excessive fracturing fluid retention causes severe fluid sensitivity damage and water phase trapping damage to shale reservoirs.…”

Section: Analysis Of the Potential Application Of Des-ctab In Wellbor...mentioning

confidence: 99%

“…Oil-based drilling fluids are widely used in shale gas wells because they stabilize and lubricate the wellbore. However, oil-based drilling fluids are costly and pose significant environmental pollution risks . Using the inhibitor developed in this research as the hydration expansion inhibitor of WBDFs can reduce the drilling cost and contribute to environmental protection.…”

Section: Analysis Of the Potential Application Of Des-ctab In Wellbor...mentioning

confidence: 99%

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Investigation of the Mechanism and Effect of Citric Acid-Based Deep Eutectic Solvents Inhibiting Hydration and Expansion of Gas Shale Clay Minerals

et al. 2023

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This study developed a shale hydration inhibitor using a citric acid-based deep eutectic solvent (Cit-DES) and hexadecylammonium bromide (cetyltrimethylammonium bromide) to aid wellbore instability and collapse caused by drilling of shale gas wells with water-based drilling fluids. Soaking and linear expansion experiments were conducted with Na-bent and Longmaxi formation shale, respectively. The changes in illite interlayer spacing, wettability, and water absorption capacity of shale samples before and after soaking in an inhibitor solution were evaluated, which indicated that the inhibitor reduced shale hydration. The results showed that the inhibitor effectively inhibits the osmotic and surface hydration of the shale. Due to the Cit-DES hydrogen bond, the inhibitor is firmly adsorbed on the shale pore wall and inserted between clay minerals, reducing the shale surface energy, hydrophilicity, and surface potential. The swelling expansion rate of shale inhibitors is only 38.9% compared to a 3% KCl solution. The amount of shale imbibition per unit mass in distilled water is 0.011 g/g. In the inhibitor, the imbibition mass per unit of shale is 0.002 g/g, which is only 23.68% of that in distilled water. The inhibitor is environment-friendly and has a broad application prospect for maintaining shale wellbore stability and preventing wellbore collapse during horizontal shale drilling operations.

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Section: Analysis Of the Potential Application Of Des-ctab In Wellbor...mentioning

confidence: 99%

Section: Analysis Of the Potential Application Of Des-ctab In Wellbor...mentioning

confidence: 99%

Investigation of the Mechanism and Effect of Citric Acid-Based Deep Eutectic Solvents Inhibiting Hydration and Expansion of Gas Shale Clay Minerals

et al. 2023

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“…Microwave is a kind of electromagnetic waves with a wavelength between 0.1 mm and 1 m [43]. The principle of microwave heating is similar to the traditional heating treatment, where the oil and water are evaporated by heating, and then condensed and separated to achieve the purpose of harmless treatment.…”

Section: Microwave Heatingmentioning

confidence: 99%

Research Progress and Prospects on the Treating and Disposal for Waste Oil-Based Drilling Cuttings from Shale Gas Wells

et al. 2022

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Oil-based drilling cuttings (OBDC) from shale gas wells is a kind of typical hazardous waste produced during the exploration and development of shale gas reservoirs, which will endanger the natural ecosystem and human health. This article summarized the OBDC treating and disposal methods commonly used all over the world. The treating methods were divided into restriction, separation, and degradation, while the disposal methods were divided into landfill, land farming, and resource recovery. The technical principles, technological process, advantages, and limitations of existing OBDC treating and disposal methods were overviewed in detail, and the development prospects of OBDC and resource recovery were illustrated as well. Finally, we proposed to maximize the resource recovery of OBDC by multitechniques processing, tracking the processed products to improve the reliability of product quality. In addition, the data system for original materials used for different methods should be established to service industrial development.

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“…1,2 It is worth mentioning that drilling uids can be broadly divided into water-based drilling uids (WBDFs), oilbased drilling uids (OBDFs), and foam drilling uids. 3,4 Among these drilling uids, WBDFs are considered to be the most widely recommended owing to their desirable properties such as lower cost, ease of preparation, variable rheology, and eco-friendly nature. [5][6][7][8] To minimize formation damage and stabilize the borehole, satisfactory rheological and ltration performance in WBDFs should be given priority during circulation.…”

Section: Introductionmentioning

confidence: 99%

Sodium alginate as an eco-friendly rheology modifier and salt-tolerant fluid loss additive in water-based drilling fluids

et al. 2022

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Environmental impacts related to drilling fluid waste and treatment methods: A critical review

Cited by 55 publications

References 46 publications

Investigation of the Mechanism and Effect of Citric Acid-Based Deep Eutectic Solvents Inhibiting Hydration and Expansion of Gas Shale Clay Minerals

Investigation of the Mechanism and Effect of Citric Acid-Based Deep Eutectic Solvents Inhibiting Hydration and Expansion of Gas Shale Clay Minerals

Research Progress and Prospects on the Treating and Disposal for Waste Oil-Based Drilling Cuttings from Shale Gas Wells

Sodium alginate as an eco-friendly rheology modifier and salt-tolerant fluid loss additive in water-based drilling fluids

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