Effect of SiO2 Nanoparticle Addition on the Filtrate Characteristics of Drilling Fluids Used in Carbonate Reservoirs

Development of Novel Nanodetectors in Drilling Fluids To Identify the Contribution of Different Producing Zones in Naturally Fractured Carbonate Reservoirs: From the Laboratory to Field-Level Implementation

“…Additionally, as a result of the overpressure condition evidenced in the reservoir, drilling operations must be carried out while maintaining the hydrostatic pressure above the pore pressure to prevent the influx of formation fluids into the wellbore . The latest studies have focused on developing innovative and environmentally friendly additives for the formulation of better water-based drilling fluids. − Although results show the utility of nanotechnology in improving the properties of the drilling fluid, there is still a limitation during the drilling of carbonate reservoirs in determining which section of the well and which fractures contribute to production. Briefly, the open hole completion of horizontal wells in naturally fractured carbonate formations and the overbalance condition in which the drilling operations of some wells are carried out have made it challenging to identify the zones or fractures that contribute to the flow.…”

“…Field results, including concentrations of nanoparticles higher than 1000 mg L –1 , have shown that rheological and filtration properties can be enhanced cost-effectively . Nevertheless, most of these studies have been focused on sandstone-based reservoirs, and few studies have been reported in carbonate reservoirs, with no field trials found in the specialized literature. ,,, …”

“…9 Nevertheless, most of these studies have been focused on sandstone-based reservoirs, and few studies have been reported in carbonate reservoirs, with no field trials found in the specialized literature. 5,9,12,13 Nanocapsule-type and core−shell-type nanoparticles have also been developed for different applications in the oil and gas industry, mainly focused on the target delivery of some chemicals in the reservoir. These nanoparticles are composed of a core that could be solid or liquid, covered by a shell specially designed to a targeted purpose.…”