Experimental studies on stability and viscoplastic modeling of colloidal gas aphron (CGA) based drilling fluids

Arabloo, Milad; Shahri, Mojtaba Pordel

doi:10.1016/j.petrol.2013.12.002

Cited by 49 publications

(29 citation statements)

References 41 publications

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“…drilling uid and rheology, has greater e ect on the rate of penetration than any other controllable variables in the drilling process [31]. In spite of the documented literature on the physicochemical characteristics and rheological behavior of CGA based drilling uids [32][33][34][35][36][37][38][39][40][41][42][43], the interpretation of the rheological model of CGA based drilling uids has not been fully addressed. Amiri and Woodburn [19] found the average size of the micro bubbles to be 35 m by analyzing through optical microscope.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of rheological properties of aphron based drilling Fluids and their effects on formation damage

2017

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Abstract. Drilling uid is one of the most important and expensive aspects of any drilling process. Colloidal Gas Aphron (CGA) has been found e ective in controlling the ltration rate by bridging the pores of the reservoir rock; hence, reducing the formation damage. This work aims to synthesize the CGA in water based drilling uids to study the stability, rheology, ltration loss characteristics and formation damage properties of the resulting uid. Besides, an investigation on type of polymer, surfactant, and their concentration e ects on the characteristics of the uid, as well as optimum ratios of polymers in drilling uid was performed. Experimental results showed that Xanthan Gum (XG) provides more acceptable rheological properties (especially viscosity) in comparison to Guar Gum (GG) for preparing the base uid. Moreover, the Sodium Dodecyl Sulfate (SDS) produces more stable micro-bubbles than Hexadecyl Trimethyl Ammonium Bromide (HTAB) as a surfactant. Bubble size measurement to observe the e ect of polymer, surfactant type and concentration was performed. Through the experiments, the pH of the drilling uid was monitored which proved the CGA introduced the best performance around a pH of 9. Furthermore, a XG/GG ratio of 3:1 is suggested to reduce the cost while maintaining the uid properties.

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Section: Introductionmentioning

confidence: 99%

Experimental study of rheological properties of aphron based drilling Fluids and their effects on formation damage

2017

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“…Sodium dodecylsulfate (SDS) [14][15][16][17][18], sodium dodecylbenzenesulfonate (DDBS) [19][20], cetyltrimethylammonium bromide (CTAB) [14] and hexadecyltrimethylammonium bromide (HTAB) [19][20] are examples of ionic surfactants commonly used in the formulation of aphrons based drilling fluids.…”

Section: Introductionmentioning

confidence: 99%

“…Viscosity increment reduces the rate of mass transfer from the viscous water shell to the bulk phase, stabilizing the structure of the aphron [12,16,26]. This mass transfer induced by a surface tension gradient is known as Marangoni effect [2].…”

Section: Introductionmentioning

confidence: 99%

Aphrons Obtained From Different Nonionic Surfactants: Properties and Filtration Loss Evaluation

Gomes¹,

Alves²,

Nunes³

et al. 2017

ChChT

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Abstract.1 Aphrons were produced using nonionic surfactants by applying a differential pressure. Bubble size distribution was obtained from optical microscopy using FIJI-ImageJ2 program. The aim of this work was to correlate surfactants structures with aphrons properties (density and viscosity), size distribution and the number of bubbles. API fluid loss tests were based on standard proceedings specifications for water-based drilling fluids of Petrobras/Brazil. The structure of the nonionic surfactants showed a great influence on the fluid properties and the performance of the fluid contributing with a filtrate reduction up to 31% with the systems that were presented between 1088 and 1850 bubbles with diameters ranging from 33 to 104µm. These systems were produced by poly(ethylene oxide) with 7 ethylene oxide units, a poly(ethylene oxide)-b-poly(propylene oxide) with 6 ethylene oxide units and 3 propylene oxide units.

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“…CGA or microbubble based fluids are complex mixtures of a gas, a liquid, and a surfactant whose rheological properties are strongly influenced by parameters like temperature, pressure, CGA quality, basefluid properties, type and concentration of surfactant (Arabloo and Pordel Shahri, 2014;Bjorndalen and Kuru, 2008). Therefore, the rheology of CGA based fluids is more complex than that of simpler fluids.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the rheology of CGA based fluids is more complex than that of simpler fluids. Modeling of fluid rheological behavior is of extreme importance to predicting downhole performance for efficient, safe and economical drilling operation (Arabloo and Pordel Shahri, 2014). Thus, proper understanding and application of rheological principles is vital in evaluating drilling fluid behavior and in solving the problems of hole cleaning, hydraulic calculations, cutting transport (Arabloo and Pordel Shahri, 2014).…”

Section: Introductionmentioning

confidence: 99%

Herschel–Bulkley rheological parameters of lightweight colloidal gas aphron (CGA) based fluids

Ziaee¹,

Arabloo²,

Ghazanfari³

et al. 2015

Chemical Engineering Research and Design

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Experimental studies on stability and viscoplastic modeling of colloidal gas aphron (CGA) based drilling fluids

Cited by 49 publications

References 41 publications

Experimental study of rheological properties of aphron based drilling Fluids and their effects on formation damage

Experimental study of rheological properties of aphron based drilling Fluids and their effects on formation damage

Aphrons Obtained From Different Nonionic Surfactants: Properties and Filtration Loss Evaluation

Herschel–Bulkley rheological parameters of lightweight colloidal gas aphron (CGA) based fluids

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