Rheological properties of cement slurries modified by silica nanostructures applied in drilling industry

Abstract

The most important purpose of cementing boreholes is to counteract the inflow of deep-seated waters into productive levels of oil and gas-bearing rocks. The increasing requirements regarding the properties of cement grout and cement stone enforces the search for unconventional solutions and materials that will provide a resolved improvement in their properties and resistance to temperature and chemical factors in difficult geological and reservoir conditions. Therefore, the number of binding materials that have been improved by various types of structures is growing rapidly. Materials with the properties needed to meet the above challenges are close to the technology of nanomaterials, which are still used in the oil industry to a very small extent. The comparative analysis conducted by the author showed that using appropriate amounts of SiO2 nanoparticles it will be possible to design a cement paste with good rheological parameters, high strength and, at the same time, characterized by low filtration.

Synthesis and characterization of a novel functionalized silica/polyacrylamide composite for advanced water‐based drilling design

“…Besides, the crystallinity size from XRD analysis of SiO 2 is smaller than the particle size obtained from SEM, which is attributed to the particle of SiO 2 having many crystal configurations. Further, Piklowska 52 reported that silica with nano‐size affects the drilling properties, which can contribute to the desired wellbore in drilling. In short, the unique structure of SiO 2 has been proven with the SEM and XRD profiles obtained.…”