Rheological properties of organo-palygorskite in oil-based drilling fluids aged at different temperatures

Zhuang, Guanzheng; Wu, Hao; Zhang, Haixu; Zhang, Zepeng; Zhang, Xiangming; Liao, Libing

doi:10.1016/j.clay.2016.12.015

Cited by 46 publications

(17 citation statements)

References 23 publications

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“…The selection of appropriate surfactants is very important for enhance the rheological properties of oil-based drilling fluids containing these OC. According to the previous investigations(Zhuang et al, 2017a(Zhuang et al, , 2018b, C18-A (mass 25% of Pal) was optimal for the rheological properties of OPal in oil while C18-B (mass 35% of Sep) improved most for OSep among the selected surfactants. In addition, the aggregations of OPal and OSep also influenced the rheological properties.…”

mentioning

confidence: 84%

“…Reacting in toluene (Zhang et al, 2010a) Pal Series of quaternary ammonium salts Reacting in water (Zhuang et al, 2017a;Zhuang et al, 2017c) Sep dodecylamine Reacting in water (Akçay et al, 2005 (Sabah and Çelik, 2002; Sep Series of quaternary ammonium salts, amines and organosilanes Adsorption and grifting (Tartaglione et al, 2008) Sep Series of quaternary ammonium salts Reacting in water (Zhuang et al, 2018a;Zhuang et al, 2018b;Zhuang et al, 2018d) Sep Series of quaternary ammonium salts and sodium dodecyl sulfate (SDS)…”

Section: Kh972mentioning

confidence: 99%

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Organoclays used as colloidal and rheological additives in oil-based drilling fluids: An overview

Zhuang

Zhang

Jaber

2019

Applied Clay Science

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The objective of this paper is to give an overview of the synthesis, properties of different organoclays, including organo-montmorillonite, organo-sepiolite and organo-palygorskite, and their use as rheological additives in oil-based drilling fluids. The researches performed until the present moment are described and summarized. A significant amount of work had been done in this area, including the rheological behavior at normal and high temperature, the structure changes of organoclays in oil-based system, thermal stability and the rheological mechanisms. The role of layered and fibrous organoclays in oil-based drilling fluids in the enhancement of the rheological properties and thermal stability is deeply reviewed.

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confidence: 84%

Section: Kh972mentioning

confidence: 99%

Organoclays used as colloidal and rheological additives in oil-based drilling fluids: An overview

Zhuang

Zhang

Jaber

2019

Applied Clay Science

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“…The microstructures and properties of Pal in OBMs are influenced by the surface properties and organization of Pal. In addition, both Mt and Pal are suitable for use in oil-based drilling fluids, with the former providing excellent rheological properties and the latter providing good thermal stability (Zhuang et al, 2017a(Zhuang et al, , 2017b(Zhuang et al, , 2017c. However, the gel structure and gel formation of organic Pal in oil-based drilling fluids have not been studied extensively.…”

Section: Palygorskite-based Drilling Fluidsmentioning

confidence: 99%

Clay minerals in drilling fluids: functions and challenges

Zhang

Christidis

et al. 2020

Clay miner.

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The addition of clay minerals in drilling fluids modifies the dispersion's viscosity. In this article, scientific advances related to the use of clays and clay minerals (bentonite, palygorskite, sepiolite and mixtures of clay minerals) in drilling fluids are summarized and discussed based on their specific structure, rheological properties, applications, prevailing challenges and future directions. The rheological properties of drilling fluids are affected by the temperature, type of electrolytes, pH and concentration of clay minerals. Bentonites are smectite-rich clays often used in drilling fluids, and their composition varies from deposit to deposit. Such variations significantly affect the behaviour of bentonite-based drilling fluids. Palygorskite is suitable for use in oil-based drilling fluids, but the gelation and gel structures of palygorskite-added drilling fluids have not received much attention. Sepiolite is often used in water-based drilling fluids as a rheological additive. Dispersions containing mixtures of clays including bentonite, kaolin, palygorskite and sepiolite are used in drilling fluids requiring specific features such as high-density drilling fluids or those used in impermeable slurry walls. In these cases, the surface chemistry–microstructure–property relationships of mixed-clay dispersions need to be understood fully. The prevailing challenges and future directions in drilling fluids research include safety, ‘green’ processes and high-temperature and high-pressure-resistant clay minerals.

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“…Recently, some investigations have reported on the organophilization of palygorskite for application as a viscosity enhancer in oil-based drilling fluids (Zhuang et al, 2017a(Zhuang et al, , 2017b. Palygorskite, formerly known as attapulgite, is a hydrated magnesium-aluminium phyllosilicate with the general structural formula (Mg,Al) 2 Si 4 O 10 (OH)⋅4(H 2 O) (Murray, 2000).…”

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confidence: 99%

Use of palygorskite as a viscosity enhancer in salted water-based muds: effect of concentration of palygorskite and salt

Santanna

Silva

et al. 2020

Clay miner.

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Drilling fluids are essential for the operation and productivity of petroleum wells. This study compares the efficiency of a salted water-based mud for which the viscosity has been enhanced with polymeric compounds with that of a new salted water-based mud containing palygorskite clay, which mainly functions as a viscosity enhancer. The experiment measured the density, apparent viscosity, plastic viscosity, yield point, American Petroleum Institute filtrate and pH of the samples. The results indicate that the rheological properties of the fluids containing greater amounts of palygorskite were not affected significantly by the addition of salt. However, when the concentration of palygorskite was low, the rheological behaviour of the samples was appropriate to the drilling operation only with lesser amounts of salt. In addition to its good rheological properties, the filtrate volume obtained for samples containing greater concentrations of palygorskite was lower, which suggests that the filtration properties at the bottoms of the wells were controlled appropriately.

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Rheological properties of organo-palygorskite in oil-based drilling fluids aged at different temperatures

Cited by 46 publications

References 23 publications

Organoclays used as colloidal and rheological additives in oil-based drilling fluids: An overview

Organoclays used as colloidal and rheological additives in oil-based drilling fluids: An overview

Clay minerals in drilling fluids: functions and challenges

Use of palygorskite as a viscosity enhancer in salted water-based muds: effect of concentration of palygorskite and salt

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