Nanoemulsion for oil-contaminated oil-based drill cuttings removel in lab

Yan, Yonghong; Li, Jiaxue; Zhang, Qingwen; Feng, Jie; Zhu, Jinzhi; Yin, Da

doi:10.1016/j.ijhydene.2017.05.011

Cited by 20 publications

(8 citation statements)

References 2 publications

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“…Nano-emulsions have the advantages of low surface interfacial tension, small particle size, good stability, and strong biodegradability [ 27 , 28 , 31 , 32 ]. They have been well-applied in reservoir reconstruction, well drilling, and completion projects.…”

Section: Methodsmentioning

confidence: 99%

“…Nano-emulsions with ultra-low surface interfacial tension and strong cleaning ability have been widely used in oil repelling as well as oil washing in recent years. Ye Yan [ 28 ] applied nano-emulsions to oil sludge cleaning and achieved effective oil phase recovery. Mohammed K. Al-Sakkaf [ 12 ] used biosurfactants, crude oil, and water to prepare environmentally friendly nano-emulsions with good characteristics in EOR.…”

Section: Introductionmentioning

confidence: 99%

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A Nano-Cleaning Fluid for Downhole Casing Cleaning

Song

Zhang

et al. 2023

Polymers

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In drilling and completion projects, sludge is formed as a byproduct when barite and oil are mixed, and later sticks to the casing. This phenomenon has caused a delay in drilling progress, and increased exploration and development costs. Since nano-emulsions have low interfacial surface tension, wetting, and reversal capabilities, this study used nano-emulsions with a particle size of about 14 nm to prepare a cleaning fluid system. This system enhances stability through the network structure in the fiber-reinforced system, and prepares a set of nano-cleaning fluids with adjustable density for ultra-deep wells. The effective viscosity of the nano-cleaning fluid reaches 11 mPa·s, and the system is stable for up to 8 h. In addition, this research independently developed an indoor evaluation instrument. Based on on-site parameters, the performance of the nano-cleaning fluid was evaluated from multiple angles by heating to 150 °C and pressurizing to 3.0 Mpa to simulate downhole temperature and pressure. The evaluation results show that the viscosity and shear value of the nano-cleaning fluid system is greatly affected by the fiber content, and the cleaning efficiency is greatly affected by the concentration of the nano-emulsion. Curve fitting shows that the average processing efficiency could reach 60–85% within 25 min and the cleaning efficiency has a linear relationship with time. The cleaning efficiency has a linear relationship with time, where R2 = 0.98335. The nano-cleaning fluid enables the deconstruction and carrying of the sludge attached to the well wall, which accomplishes the purpose of downhole cleaning.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Nano-Cleaning Fluid for Downhole Casing Cleaning

Song

Zhang

et al. 2023

Polymers

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“… 4 At present, many treatment strategies for OBDC have been studied, including pyrolysis, oxidation, microbial treatment, and solvent extraction. 5 − 8 …”

Section: Introductionmentioning

confidence: 99%

“…The discharge of untreated/inappropriately treated OBDC could cause severe adverse impact on the surrounding environment . At present, many treatment strategies for OBDC have been studied, including pyrolysis, oxidation, microbial treatment, and solvent extraction. − …”

Section: Introductionmentioning

confidence: 99%

Activation of Peroxymonosulfate Using Secondary Pyrolysis Oil-Based Drilling Cuttings Ash for Pollutant Removal

Zhao

Sun

et al. 2021

ACS Omega

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In this study, the utilization of secondary pyrolysis oil-based drilling cuttings ash (OBDCA-sp) to activate peroxymonosulfate (PMS) for pollutant removal was investigated. The chemical and physical properties of OBDCA-sp were explicitly analyzed via multiple characterization. The activation efficiency of OBDCA-sp for PMS was tested using humic acid (HA) as the target pollutant. 92% of HA and 52% of total organic carbon in solution could be removed using OBDCA-sp-activated PMS under optimal conditions: OBDCA-sp dosage at 4 g/L, PMS concentration at 4 mmol/L, HA concentration at 10 mg/L, and pH value at 7. After four cycles, 84% removal rate of HA could still be achieved using OBDCA-sp to activate PMS. The main catalysis elements for PMS activation in OBDCA were postulated to be Fe(III), Co(III), and Mn(III), based on X-ray photoelectron spectroscopy and X-ray diffraction results. The results of the quenching experiment indicated that SO 4 •– , • OH, and 1 O 2 were the main reactive oxygen species (ROS) and that 1 O 2 was the dominant ROS in the HA removal process. Radical trapping experiments indicated the presence of SO 4 •– , • OH, and 1 O 2 in the reaction system. This study presented a novel utilization path of OBDCA in the field of environmental remediation.

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“…At present, many technologies have been employed to the treatment of OBDC, including continuous supercritical water oxidation, solvent washing, surfactant-based washing, demulsification, pyrolysis, biotreatment, and Fenton oxidation (Adhami et al 2021;Chen et al 2020;Cheng et al 2020;Hu et al 2021;Poyai et al 2020;Yan et al 2011;Ye et al 2017). Among these methods, Fenton oxidation has been widely employed for treatment of oil-contaminated soil and water (Akpoveta et al 2018;Chaturvedi and Katoch 2020a;Chaturvedi and Katoch 2020b;Vilar et al 2020;Xu et al 2020;Xu et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Treatment of oil-based drilling cuttings using the demulsification separation-Fenton oxidation method

Cai

Sun

et al. 2021

Environ Sci Pollut Res

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In this study, demulsification separation-Fenton oxidation technology was employed as a combined technology to treat total petroleum hydrocarbons (TPH) in oil-based drill cuttings (OBDC). Batch experiments were carried out to optimize the technology parameter. Under the optimal condition, 70% and 51% TPH removal rate was obtained for demulsification technology and Fenton oxidation technology, respectively. Eighty-five percent of TPH removal rate was obtained using combination technology of demulsification separation and Fenton oxidation. Multiple characterizations were used to analyze the physical and chemical properties of treated OBDC. The result of XRD pattern indicated the combination technology had no obvious effect for structure phase of OBDC. The results of FTIR, GC-MS, TG-DTG and SEM were used to characterize the treated OBDC. This paper provides an efficient and feasible combined technology for OBDC treatment, which expands a new strategy for the removal of TPH from solid waste

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Nanoemulsion for oil-contaminated oil-based drill cuttings removel in lab

Cited by 20 publications

References 2 publications

A Nano-Cleaning Fluid for Downhole Casing Cleaning

A Nano-Cleaning Fluid for Downhole Casing Cleaning

Activation of Peroxymonosulfate Using Secondary Pyrolysis Oil-Based Drilling Cuttings Ash for Pollutant Removal

Treatment of oil-based drilling cuttings using the demulsification separation-Fenton oxidation method

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