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Abstract <p>The development of eco-friendly, high-performance water-based drilling fluids will be necessary to minimize the impact that drilling has on the environment without adversely impacting hole stability. This study investigates the feasibility of using Pine Cone Powder (PCP), an unutilized lignocellulosic biomass, as a multi-functional drilling fluid additive. Particular emphasis was placed on the potential effects of particle size engineering on optimizing fluid performance. Drilling systems utilizing aqueous drilling fluids were developed containing either nano-scale (234 nm) or micro-scale (&lt;75 μm) PCP at variable concentrations. Thorough evaluations of the rheological, filtration, and physical chemical characteristics were performed under both low-pressure/low temperature (LPLT) and high pressure/high temperature (HPHT) conditions (250°F/500 psia). Results from empirical testing clearly indicated that the functional performance of PCP can only be achieved through controlling the particulate size. The thermal/mechanical resistance provided by micro-scale PCP resulted in a 70.4% decrease in HPHT filtrate volume (to 8.0 cc). The superior mechanical/thermal resistance of micro-scale PCP was also responsible for forming relatively impermeable filter cakes which facilitated the “mechanical scaffolding” action. In contrast to micro-scale PCP’s excellent thermal/mechanical resistance, nano-scale PCP was shown to exhibit improved performance in surface area dependent processes resulting in a 52.6% reduction in LPLT fluid loss (to 7.3 cc). Nano-scale PCP also demonstrated additional advantages including intrinsic pH buffer capacity and enhanced air entrainment. As such these results indicate that PCP represents a viable, non-synthetic, green alternative to existing synthetic drilling fluid additives; and further illustrate the importance of employing particle size engineering as a tool to tailor biomass derived products for particular geotechnical regimes. Therefore, it is recommended that micro-scale PCP be utilized for HPHT stabilization while nano-scale PCP be used in specialized low-temperature drilling systems.</p>

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The Influence of Nano and Sustainable Materials on Enhancing Mud Filtration

  • 期刊论文

  • 发表日期：

    2026年7月30日

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  • Musab Fatah Jabary,
  • Amel H. Assi

摘要

Abstract

The development of eco-friendly, high-performance water-based drilling fluids will be necessary to minimize the impact that drilling has on the environment without adversely impacting hole stability. This study investigates the feasibility of using Pine Cone Powder (PCP), an unutilized lignocellulosic biomass, as a multi-functional drilling fluid additive. Particular emphasis was placed on the potential effects of particle size engineering on optimizing fluid performance. Drilling systems utilizing aqueous drilling fluids were developed containing either nano-scale (234 nm) or micro-scale (<75 μm) PCP at variable concentrations. Thorough evaluations of the rheological, filtration, and physical chemical characteristics were performed under both low-pressure/low temperature (LPLT) and high pressure/high temperature (HPHT) conditions (250°F/500 psia). Results from empirical testing clearly indicated that the functional performance of PCP can only be achieved through controlling the particulate size. The thermal/mechanical resistance provided by micro-scale PCP resulted in a 70.4% decrease in HPHT filtrate volume (to 8.0 cc). The superior mechanical/thermal resistance of micro-scale PCP was also responsible for forming relatively impermeable filter cakes which facilitated the “mechanical scaffolding” action. In contrast to micro-scale PCP’s excellent thermal/mechanical resistance, nano-scale PCP was shown to exhibit improved performance in surface area dependent processes resulting in a 52.6% reduction in LPLT fluid loss (to 7.3 cc). Nano-scale PCP also demonstrated additional advantages including intrinsic pH buffer capacity and enhanced air entrainment. As such these results indicate that PCP represents a viable, non-synthetic, green alternative to existing synthetic drilling fluid additives; and further illustrate the importance of employing particle size engineering as a tool to tailor biomass derived products for particular geotechnical regimes. Therefore, it is recommended that micro-scale PCP be utilized for HPHT stabilization while nano-scale PCP be used in specialized low-temperature drilling systems.