Optimization of the batch decontamination process of drill cuttings by microwave heating

Santos, Jéssika Marina dos; Júnior, Irineu Petri; Mota, Ana Carolina Silva; Morais, Anderson dos Santos; Ataíde, Carlos Henrique

doi:10.1016/j.petrol.2018.01.003

Cited by 35 publications

(18 citation statements)

References 17 publications

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“…In general, reaching such results not even reached below the international regulation but for many countries reached better than the target of environmental treating as for US Environmental Protection Agency (US EPA) stated that discharged cuttings cannot be greater than (6.9% by mass) for the organic pollution of synthetic fluid adhered. Besides, In the United Kingdom and European Union, the discharge regulation compliance obliges a limit of less than 5.5% of organic content and 1% of oil on cuttings [1], [30].…”

Section: Earthworms Treatments Results and Discussionmentioning

confidence: 99%

Treating Drill Cuttings Waste with Oil Contamination by Microwave Treatment then by Earthworms Technique

Khdair

Alhaleem

2021

IJCPE

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In this research paper, two techniques were used to treat the drill cuttings resulting from the oil-based drilling fluid. The drill cuttings were taken from the southern Rumaila fields which prepared for testing and fixed with 100 gm per sample and contaminated with two types of crude oil, one from Rumaila oilfields with Sp.gr of 0.882 and the other from the eastern Baghdad oilfield with Sp.gr of 0.924 besides contamination levels of 10% and 15% w/w in mass. Samples were treated first with microwave with a power applied of 540 & 180 watts as well as a time of 50 minutes. It was found that the results reached below 1% w/w in mass, except for two samples they reached below 1.5% w/w in mass. Then, the sample of 1.41% w/w in mass, which has the highest contamination level after microwave treatment, was treated on three groups of earthworms. After the appropriate conditions, samples were prepared for treating by earthworms and for an incubation period of 21 days, the results highlighted the effectiveness of the succession process by reaching concentrations below 0.92%, 0.65%, and 0.42% w/w in mass.

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Section: Earthworms Treatments Results and Discussionmentioning

confidence: 99%

Treating Drill Cuttings Waste with Oil Contamination by Microwave Treatment then by Earthworms Technique

Khdair

Alhaleem

2021

IJCPE

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“…At the same time, it is important that the treatment method adopted makes the reuse of organic components from recovered condensed liquids possible (Dalmazzone et al, 2004;Santos et al, 2018). In this context, the search for alternative techniques for the drying of cuttings is necessary, since the world tendency is that environmental agencies increase requirements on disposal limits (Santos et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…One of the parameters analyzed when evaluating new decontamination technologies for well drilling waste is the possibility to reuse the organic phase of recovered liquids, thus generating great savings in the total costs of the drilling operation (Santos et al, 2018). Techniques such as bioremediation and incineration have proved to be effective in reducing the organic content in drill cuttings.…”

Section: Introductionmentioning

confidence: 99%

“…An alternative currently studied on the treatment of drill cuttings to be used after the solids control system is heating by microwave drying. Recent research indicates that this technology is a promising option in the decontamination of drill cuttings (Junior et al, 2017;Pereira et al, 2014Pereira et al, , 2015Petri et al, 2015;Robinson et al, 2009Robinson et al, , 2010Rossi et al, 2017;Santos et al, 2018;Shang et al, 2005Shang et al, , 2006.…”

Section: Introductionmentioning

confidence: 99%

“…Although microwave heating may cause the organic compounds' degradation and promote the emulsion breakdown, degradation may be minimized with the control of process variables, like applied power and time. Microwave drying also enables collecting the condensed organic phase during drying process, which can be reused in the formulation of new drilling fluid loads (Santos et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Microwave drying of olefins from drill cuttings and analysis of the organic phase recovered during drying operation

Mota

Santos

Pereira

et al. 2020

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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The main objective of the present work was to study the influence of different operating conditions in the microwave drying of drill cuttings and an eventual degradation of the condensed liquid collected during this operation. For this, a Central Composite Design (CCD) was used, considering three independent variables at three levels: initial olefin content (7.5, 10, and 12.5% w/w), power (250, 500, and 750 W), and time (5, 10, and 15 min); the residual olefin content being the response analyzed in the conducted tests without monitoring or control of the cutting’s temperature. All three variables studied were statistically significant, presenting a positive or negative effect on residual olefin content. As expected, the initial olefin content had a negative effect on the response. On the other hand, when considering the applied power and the drying time, the effect on decontamination yield was positive. The results showed that cuttings can be decontaminated at lower levels than those required by environmental legislation (offshore drilling), reaching residual olefin mass contents of less than 1%. Finally, the organic phase of recovered liquids, after the condensation of vapors produced during drying, was analyzed by gas chromatography technique. It was observed greater olefin degradation in the longer and higher power tests, especially in samples of condensed liquid collected inside the microwave oven.

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Treatment of oil‐based drill cuttings by hydrophobic deep eutectic solvents

Li¹,

Jiao²,

Luo³

et al. 2021

Can J Chem Eng

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During the exploitation of shale gas, there are many oil‐based drill cuttings (OBDC) produced, which are hazardous waste. In this paper, the characteristics of OBDC were analyzed and 25 hydrophobic deep eutectic solvents (DESs) were prepared as extractants for treating OBDC. The results showed that the DES formed by lauric acid and thymol had the highest extraction efficiency. The significant parameters of the extraction process were studied by using total petroleum hydrocarbon (TPH) as an index and the rational extraction conditions were recommended as follows: 0.8:1 mole ratio of lauric acid to thymol, 10:1 mass ratio of DES to OBDC, and 1 h extraction time at 60°C. The TPH of OBDC can be decreased from 14.75 to 0.87 wt.% at this recommended condition. The high extraction efficiency was also confirmed by energy dispersive spectrum results of treated OBDC. In addition, the lauric acid/thymol DES can be recycled and the TPH was still smaller than 1% after three cycles. This research suggests that hydrophobic DES extraction is an effective technology for TPH removal from OBDC.

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Optimization of the batch decontamination process of drill cuttings by microwave heating

Cited by 35 publications

References 17 publications

Treating Drill Cuttings Waste with Oil Contamination by Microwave Treatment then by Earthworms Technique

Treating Drill Cuttings Waste with Oil Contamination by Microwave Treatment then by Earthworms Technique

Microwave drying of olefins from drill cuttings and analysis of the organic phase recovered during drying operation

Treatment of oil‐based drill cuttings by hydrophobic deep eutectic solvents

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