Recent advances in the applications of graphene materials for the oil and gas industry

Yang, Xuan; Zhao, Luo; Li, Daqi; Pang, Shaocong; An, Yuxiu

doi:10.1039/d3ra02781c

Cited by 3 publications

(1 citation statement)

References 64 publications

(77 reference statements)

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“…Adding nanosized plugging agents to plug microfractures and nanopores to form a dense plugging film and reduce the lack of drilling fluids is an effective mean to solve the above problem. − Common nano plugging agents are inorganic nanomaterials, organic nanomaterials, and organic/inorganic composite nanomaterials. Inorganic nanomaterials, such as nanosilica (nano-SiO 2 ), nanozinc oxide (nano-ZnO), and nanotitanium dioxide (nano-TiO 2 ) are filled in the near wellbore zone through bridging to form a tight plugging layer, which decreases the permeability of the reservoir and reduces the filtration of drilling fluid. − However, the surface effect of nanomaterials makes them easily agglomerate together, which hardly guarantees the nanometer size.…”

Section: Introductionmentioning

confidence: 99%

Temperature-Responsive Nano-SiO₂ Composite for Improving Shale Stability in Oil-Based Drilling Fluids

Fan,

Shi,

Tang

et al. 2024

Energy Fuels

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The development of nanomicrometer pores and microfractures in shale gas formation leads to frequent wellbore instability during shale gas drilling, which seriously restricts the safe and rapid drilling of shale gas. In this work, N-isopropylacrylamide (NIPAM), N-hydroxyethyl acrylamide (HEAA), styrene (St), and nano-SiO 2 were used as raw materials to prepare the temperature-responsive nanocomposite named NHS/SiO 2 . NHS/SiO 2 was highly sensitive and exhibited reversible temperature sensitivity, with a lower critical solution temperature (LCST) of 82 °C. The amphiphilicity of NHS/ SiO 2 positively affected the stability of oil-based drilling fluids (OBDFs). The effects of NHS/SiO 2 on the plugging property of shale were tested by experiments on fluid loss, pressure transfer rate, shale specific surface area, shale pore volume, and shale strength. NHS/SiO 2 significantly plugged shale pores at 130 °C, with a specific surface area reduction rate of shale from 22.19% to 65.95% and pore volume reduction rate of shale from 30.73% to 68.51%. NHS/SiO 2 exhibited obvious oil adsorption in white oil and the water-in-oil emulsions after reaching the LCST. The maximum oil adsorption rate of NHS/SiO 2 in the water-in-oil emulsion was about 23.41 g/g. Finally, the mechanism of NHS/SiO 2 to improve the shale stability in OBDFs was further proposed. At high temperatures, NHS/SiO 2 increased its elastic deformation ability by adsorbing oil for a long time, thus improving the plugging efficiency.

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Section: Introductionmentioning

confidence: 99%

Temperature-Responsive Nano-SiO₂ Composite for Improving Shale Stability in Oil-Based Drilling Fluids

Fan,

Shi,

Tang

et al. 2024

Energy Fuels

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Polymer-laponite composites as filtrate reducer for high temperature and salt resistant drilling fluid: Characterization and performance evaluation

Luo,

Lin,

Luo

et al. 2024

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Modification of Shale Inhibition Properties using Novel Drilling Fluids with Gemini Surfactant and Associative Polymer as Additives

Ahmad,

Javaid,

Baig

et al. 2024

Day 1 Mon, February 12, 2024

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Drilling fluids are known as specialized fluids to modify rheology, filtration, fluid loss control, and shale inhibition properties for drilling applications in the oil and gas industry. Various additives are employed to change the properties based on the requirements of the drilling well and to meet the objectives of the drilling process. Additives such as polymers are used for rheology modifiers, fluid loss control modifiers, and shale inhibition control modifiers. Apart from polymers, a novel class of Gemini surfactants is also employed to modify the shale inhibition characteristics. In this work, a combined effect of polymer and Gemini surfactant was studied on the shale inhibition characteristics. Various drilling fluid formulations were prepared by adding 0.25 to 0.4% concentration of associative polymer and 0.25% concentration of Gemini surfactant. All the drilling fluids were prepared based on the American Petroleum Institute standards. Two major tests were performed to investigate the effectiveness of prepared drilling formulations for shale inhibition properties. These tests include steady shear rheology and linear swelling tests in the presence of real samples of shale pallets. The rheology of drilling fluids including polymer solutions and polymer surfactant solution was measured over a wide range of shear rates ranging from 0.1 (1/s) to 1000 (1/s). The shear stress and viscosity of the polymer solution increased by increasing the concentration of the polymer. However, the shear stress and viscosity of polymer solutions are slightly affected with the addition of surfactant solutions. It was observed that high-concentration polymer solutions were less likely by the surfactant solution. The linear swelling tests were performed with pure polymer and surfactant solutions along with the polymer-surfactant combined solution over a period of 48 hours. The linear swelling of shale pellets in the Presence of DI water was maximum while the swelling of shale pallets in the presence of polymer solution, surfactant solution, and polymer-surfactant solution was greatly reduced as compared to the swelling in DI water. The linear swelling of shale pallets in the polymer-surfactant solution (0.4%) - (0.25%) was approximately 107%. The associative polymer and Gemini Surfactant have positive pendant groups and long alkyl chains in their structures. The positive pendant groups attach with the clay content in the shale while long alkyl chains encapsulate the shale minimizing the interaction of water with shale. Therefore, the synergistic effect of both polymer and Gemini surfactant improves the shale inhibition characteristics. This combination of associative polymer and Gemini Surfactant would be potential additives for drilling fluids to modify shale swelling and hydration inhibition characteristics.

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Recent advances in the applications of graphene materials for the oil and gas industry

Abstract: Graphene is a material formed with carbon atoms connected by sp2 hybridization.

Cited by 3 publications

References 64 publications

Temperature-Responsive Nano-SiO₂ Composite for Improving Shale Stability in Oil-Based Drilling Fluids

Temperature-Responsive Nano-SiO₂ Composite for Improving Shale Stability in Oil-Based Drilling Fluids

Polymer-laponite composites as filtrate reducer for high temperature and salt resistant drilling fluid: Characterization and performance evaluation

Modification of Shale Inhibition Properties using Novel Drilling Fluids with Gemini Surfactant and Associative Polymer as Additives

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Recent advances in the applications of graphene materials for the oil and gas industry

Abstract: Graphene is a material formed with carbon atoms connected by sp2 hybridization.

Cited by 3 publications

References 64 publications

Temperature-Responsive Nano-SiO2 Composite for Improving Shale Stability in Oil-Based Drilling Fluids

Temperature-Responsive Nano-SiO2 Composite for Improving Shale Stability in Oil-Based Drilling Fluids

Polymer-laponite composites as filtrate reducer for high temperature and salt resistant drilling fluid: Characterization and performance evaluation

Modification of Shale Inhibition Properties using Novel Drilling Fluids with Gemini Surfactant and Associative Polymer as Additives

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Temperature-Responsive Nano-SiO₂ Composite for Improving Shale Stability in Oil-Based Drilling Fluids

Temperature-Responsive Nano-SiO₂ Composite for Improving Shale Stability in Oil-Based Drilling Fluids