Effects of nano‐sepiolite on rheological properties and filtration loss of water‐based drilling fluids

Abstract

a This work deals with the synthesis of nano-sepiolite (NSP) and its evaluations as potential drilling fluids (DF) additive for improvement of DF rheological properties and filtration loss. Results show that addition of NSP to the base drilling fluids stabilized its rheological properties (plastic viscosity and yield point) and improved its gel strength at normal and increased temperature and pressure. The effect of NSP on fluid loss was also investigated, and results show that NSP stabilized and improved fluid loss for both normal and high pressure and temperature conditions.

Clay minerals in drilling fluids: functions and challenges

“…It is stable up to 260°C and in a saturated saline-water phase owing to its structure (Altun & Serpen, 2005). Sepiolite is also used in drilling fluids as a rheological additive, as it exhibits great thermal stability, excellent salt resistance and excellent rheological properties in water-based drilling fluids (Abdo et al , 2016).…”

Impact of ZnO and CuO nanoparticles on the rheological and filtration properties of water-based drilling fluid

“…Again in 2016, Abdo and Hassan, demonstrated the superior ability of nano-sepiolite in maintaining the filtration loss of water-based drilling fluid at up to 2500 psi and 200 o C; however, the aluminium oxide (Al2O3) nanoparticles caused an increasing trend of filtration loss at higher concentrations, due to the agglomeration of the nanoparticles 26 . The rheological properties, nevertheless, were still significantly improved 27 .…”

Applicability of Fe3O4 nanoparticles for improving rheological and filtration properties of bentonite-water drilling fluids in the presence of sodium, calcium, and magnesium chlorides

“…Besides, carbon-based NPs, including graphene (Kosynkin et al 2011;Aftab et al 2017) and Multi-Walled Carbon Nano Tube (MWCNT) (Aftab et al 2017;Sedaghatzadeh et al 2012;Fazelabdolabadi et al 2015) can enhance WBDFs' formulation. Moreover, nanoclay minerals such as Attapulgite (Abdo 2014), sepiolite (Abdo et al 2016;Needaa et al 2016;Abdo and Haneef 2013), and palygorskite (Abdo and Haneef 2013) due to their structure can improve the performance of WBDFs. Also, nanocomposites such as Fe 3 O 4 -PSSS (Wang et al 2018), TiO 2 -polyacrylamide (Sadeghalvaad andSabbaghi 2015), polymer-silica (Mao et al 2015), polyacrylamide-clay (Jain et al 2015), and ZnO-clay (Abdo et al 2014) can be effective additives for WBDFs.…”