Smart Cement Modified with Nano Fly Ash and Micro Fiber for Oil Well Applications

Abstract

Adequate slurry design is critical to the success of a cementing work. In this study, a ball mill procedure was used to prepare a nano powder from a fly ash material supplied by Al-kufa Cement Factory for re-inforcing the oil well cement through using it as a partial replacement of oil well cement class G by a weight percentage of(0.25%,0.5%, 0.75% and1%)and micro fiber polypropylene at percentage (0.25%,0.5%,0.75%,and 1%).The mix with a water to cement ratio was made at 0.44.Characterizations of the prepared samples were conducted by X-Ray Diffraction (XRD), Atomic Force Microscope (AFM), density and compressive strength. The results manifested that the structural properties were improved with the development of calcium silicate hydration (C-S-H)phase, the density as well as the enhancement in compressive strength. That makes it proper for the oil well applications.

Effect of carbon reinforcements on selected properties of mortar

“…The cement hydration is a critical step in the preparation of cementitious materials where all mechanical and physical properties are highly dependent on it. Calcium Silicate Hydrate (C-S-H) is the main product of the hydration of Portland cement (Abdulhamead et al , 2019) and Raki et al (2010), which is almost amorphous material – that build up to about 60% by volume of the blend. C, S and H represent, CaO, SiO2 and H2O.…”

“…Abdulhamead et al (2019) had used a fly ash nano powder for reinforcing the oil well cement through using it as a partial substitute of oil well cement by a Wt.% of 0.25, 0.5, 0.75 and 1% and micro fiber polypropylene at 0.25, 0.5, 0.75 and 1%. The results revealed an improvement in density and compressive strength.…”

“…The results revealed an improvement in density and compressive strength. That made it suitable for the oil well applications (Abdulhamead et al , 2019).…”