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International Journal of Petroleum and Geoscience Engineering
IJPGE 2021, 12 pages - Article ID: IJPGE-2105092112325
Experimental Study on using Nano-Gilsonite in Water-Based Drilling Fluids as a High-Performance Filtration Control Agent and Stuck Pipe Reducer in High-Pressure High-Temperature Wells
a Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
b Energy Gostar Diaco Company, Tehran, Iran
ABSTRACT
Nano-fluids are fluids containing nano-materials which, due to the unique physical/chemical properties, have special properties, and also offer undeniable potential in broad industries. However, there are still unstudied nano-materials that can be used to attain the most benefits of these types of materials in drilling industries. Recently, several researchers have studied the application of different nano-materials to formulate drilling fluids with enhanced properties to increase mud resistance in high-pressure and high-temperature (HPHT) in downhole conditions. Also, Gilsonite powder as a fluid loss controller and torque and drag reducer is a common drilling fluid agent in oil-based/water-based muds. In this paper, the effect of Nano-Gilsonite particles on properties of water-based drilling fluid such as rheological properties, API fluid loss, HPHT fluid loss, pH, and differential sticking is investigated and discussed. The results indicate that Nano-Gilsonite particles have a highly beneficial effect on water-based drilling fluid additive to conquer drilling problems such as differential sticking problems and high fluid loss problems in HPHT conditions. For instance, adding 2% wt/wt Nano-Gilsonite to a simple bentonite mud could diminish pipe sticking tendency by approximately 98.5%. The goal of this research is using and optimizing Nano-Gilsonite particles as an environmentally friendly water-based drilling fluid agent to minimize operational problems while drilling in HPHT zones.