In the petroleum industry, ordinary Portland cement (OPC) is utilized for different cementing
applications. Yet, there are some technical and environmental issues for the usage of OPC …

This research examines how varying cobalt particle sizes and support pore sizes affect CO
diffusion in Fischer-Tropsch synthesis (FTS). It explores cobalt catalysts deposited on perlite …

Weighting materials such as hematite are used to increase the density of cement slurries for
different applications. Density variation (DV) across the cement column due to heavy …

Ordinary Portland cement (OPC) has introduced different environmental and technical
issues. Researchers tried either adding new materials to cement or developing alternatives …

The cement paste is subjected to various loads throughout a well's life, which may
compromise some of its essential characteristics and impair its performance. When the …

Cement replacement materials can not only benefit the workability of the concrete but can
also improve its compressive strength. Reducing the cement content of concrete can also …

A high-quality plug of the abandoned wellbore is considered an essential technical aspect of
the oil and gas well abandonment technology system. This paper presents a method of …

Heavyweight oil-well cement systems are designed for isolating intervals and supporting the
casing at deeper depths where high temperatures and pressures are encountered. The …

To solve the problem of microcracks caused by CO 2 erosion in the cementing ring, an
environmental responsive polymer (LJIY) was prepared to repair microcracks. LJIY was …

Portland cement (PC) is known for its environmental and technical concerns and massive
energy consumption during manufacturing. Geopolymer cement is a promising technology …