Cationic surfactant (CTAB) a multipurpose additive in polymer-based drilling fluids

Shettigar, Rakshith R.; Misra, Nirendra M.; Patel, Khushbu

doi:10.1007/s13202-017-0357-8

Cited by 45 publications

(13 citation statements)

References 21 publications

(20 reference statements)

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“…It was also the direct verification of the nitrogen element existence in the IONP composites. In addition, the two peaks at 2916 and 2849 cm –1 from the IONPs-PSS-CTAB spectrum were attributed to the C–H group stretching vibrations, whereas the sharp main peaks at 1462 cm –1 were caused by the asymmetric bending modes of the head [N (CH 3 ) 3 ] methyl group . These three peaks can also be found in the spectrum of pure CTAB molecules but not in the spectrum of pure PSS (see Figure S3 for detail).…”

Section: Resultsmentioning

confidence: 97%

“…In addition, the two peaks at 2916 and 2849 cm −1 from the IONPs-PSS-CTAB spectrum were attributed to the C−H group stretching vibrations, whereas the sharp main peaks at 1462 cm −1 were caused by the asymmetric bending modes of the head [N (CH 3 ) 3 ] methyl group. 29 These three peaks can also be found in the spectrum of pure CTAB molecules but not in the spectrum of pure PSS (see Figure S3 for detail). FTIR spectrum of MPE (see Figure 1d) was found to be similar to the spectrum of IONPs-PSS-CTAB.…”

Section: ■ Experimental Methodsmentioning

confidence: 99%

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Magnetophoresis of Magnetic Pickering Emulsions Under Low Field Gradient: Macroscopic and Microscopic Motion

Tham

Leong

et al. 2021

Langmuir

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Monodispersed iron oxide nanoparticles (IONPs) coated with polystyrenesulfonate (PSS) and cetrimonium bromide (CTAB) have been used to stabilize magnetic Pickering emulsions (MPEs). Magnetophoresis of MPEs under the influence of a low gradient magnetic field (∇B < 100 T/m) was investigated at the macroscopic and microscopic scale. At the macroscopic scale, for the case of pH 7, the MPE achieved a magnetophoretic velocity of 70.9 μm/s under the influence of ∇B at 93.8 T/m. The magnetic separation efficiency of the MPE at 90% was achieved within 30 min for pH 3, 7, and 10. At pH 10, the colloidal stability of the MPE was the lowest compared to that for pH 3 and 7. Thus, MPE at pH 10 required the shortest time for achieving the highest separation efficiency, as the MPE experienced cooperative magnetophoresis at alkaline pH. The creaming rate of the MPE at all conditions was still lower compared to magnetophoresis and was negligible in influencing its separation kinetics profiles. At the microscopic scale, the migration pathways of the MPEs (with diameters between 2.5 and 7.5 μm) undergoing magnetophoresis at ∇B ∼ 13.0 T/m were recorded by an optical microscope. From these experiments, and taking into consideration the MPE size distribution from the dynamic light scattering (DLS) measurement, we determined the averaged microscopic magnetophoretic velocity to be 7.8 ± 5.5 μm/s. By making noncooperative magnetophoresis assumptions (with negligible interactions between the MPEs along their migration pathways), the calculated velocity of individual MPEs was 9.8 μm/s. Such a value was within the percentage error of the experimental result of 7.8 ± 5.5 μm/s. This finding allows for an easy and quick estimation of the magnetophoretic velocity of MPEs at the microscale by using macroscopic separation kinetics data.

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Section: Resultsmentioning

confidence: 97%

Section: ■ Experimental Methodsmentioning

confidence: 99%

Magnetophoresis of Magnetic Pickering Emulsions Under Low Field Gradient: Macroscopic and Microscopic Motion

Tham

Leong

et al. 2021

Langmuir

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“…As such, drilling fluids need an additive with high stability. In addition, our research group has conducted research in the field of drilling fluid treatment agents [ 7 , 8 ], as a result of which we proposed some inorganic materials as desirable additives under HPHT conditions [ 9 , 10 ]. Graphite is an atomic crystal with carbon atoms connected by covalent single bonds to form a stable regular hexagonal network structure.…”

Section: Introductionmentioning

confidence: 99%

Lubricity and Rheological Properties of Highly Dispersed Graphite in Clay-Water-Based Drilling Fluids

Wang

Slaný

et al. 2022

Materials

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Improving the tribological characteristics of water-based drilling fluids by adding graphene-based lubricants has garnered attention because of the potential for a range of inorganic-material-based additives at high temperature. In this study, we constructed a green and simple adsorption approach to prepare highly dispersed graphite using a cationic surfactant for graphite modification. The findings demonstrated that the prepared graphite was highly dispersed in water and had a low sedimentation rate and small contact angle in distilled water. The concentration dosage of cetyltrimethylammonium chloride (CTAC) on graphite was 0.02 g/g. We evaluated the performance of the modified graphite as a lubricated additive in water-based drilling through a rheological study and viscosity coefficient measurement. The results showed that the viscosity coefficient of drilling fluid with 0.05% modified graphite was reduced by 67% at 180 °C. We proved that the modified graphite can significantly improve the lubrication performance of drilling fluid. Furthermore, we revealed the lubrication mechanism by analyzing the chemical structural and crystalline and morphological features of graphite through a particle size test, zeta potential test, Fourier transform infrared (FTIR) spectroscopy, X-ray powder diffraction (XRD), and scanning electron microscopy (SEM) measurements. The results indicated that the modification of graphite by CTAC only occurs through physical adsorption, without changing the crystal structure. These findings provide a reference for the development of high-performance water-based drilling fluids.

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“…The extreme HTHP conditions experienced in the borehole with temperatures of at least 300 °F (150 °C) and pressure of 10 000 psi or higher. , At such HTHP, drilling fluids can deteriorate and affect the production capacity in a negative way . To maintain the required features of the drilling fluid, various additives are introduced, such as polymers, surfactants, and barite. − However, the resulting drilling fluid remains unable to function under HTHP conditions and the cost of the drilling procedure also increases enormously. Oil-based muds show good shale swelling inhibition, high lubricity, and low torque.…”

Section: Introductionmentioning

confidence: 99%

Advances in Carbon Nanostructures and Nanocellulose as Additives for Efficient Drilling Fluids: Trends and Future Perspective—A Review

2021

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The continuously growing universal demand for energy and declining production is fascinating the research community to invent novel technologies. The oil and gas industry is not only focusing on the discovery of unexplored reserves but also converging to the irrecoverable hydrocarbon reserves. For this purpose, a clear understanding of the vital features of drilling fluid can help to design drilling fluid of selective nature that can overcome the major issues come across during the oil and gas drilling operation. The stability of the drilling fluid under extremely high temperature and high pressure (HTHP) and the environmental footprint during the oil recovery process are major issues. To get stable, simpler, and more economical drilling fluids, a wide variety of nanomaterials have been widely evaluated under varying conditions. The carbon-based nanomaterials demonstrate the unprecedented physicochemical features that are considered very crucial for the smart drilling fluid formulation. The carbon-based nanoparticles (CNPs) are relatively new in the drilling technology, and they are not implemented up to their maximum potential. Several researchers have explored CNPs, their derivatives, and composites to formulate drilling fluid with required features. The resultant fluid system demonstrates better rheological features, friction reduction, low environmental impact, and greater stability under HTHP drilling conditions. However, there are still challenging aspects that must be addressed to take full advantage of the capabilities of CNPs. The present work is a comprehensive review of the recent progress in fluid systems based on carbon nanomaterials, because of their huge impact on the drilling fluid rheology and environmentally friendly nature. The nature of carbon-based nanomaterials, size, shape, and concentration are critically evaluated and discussed in the current article. Finally, this review paper identifies the opportunities for future research of the nanocarbon-based drilling fluids and their applications in the gas and oil exploration sector has been discussed.

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Cationic surfactant (CTAB) a multipurpose additive in polymer-based drilling fluids

Cited by 45 publications

References 21 publications

Magnetophoresis of Magnetic Pickering Emulsions Under Low Field Gradient: Macroscopic and Microscopic Motion

Magnetophoresis of Magnetic Pickering Emulsions Under Low Field Gradient: Macroscopic and Microscopic Motion

Lubricity and Rheological Properties of Highly Dispersed Graphite in Clay-Water-Based Drilling Fluids

Advances in Carbon Nanostructures and Nanocellulose as Additives for Efficient Drilling Fluids: Trends and Future Perspective—A Review

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