Influence of Granite Waste on the Rheological Behavior of Oil Well Cement Slurries

Abstract

Several materials have been added to oil well cement slurries to improve their fresh and hardened properties. Many of these materials are industrial and agroindustrial wastes, and their use promotes sustainable development, avoiding their disposal in the environment. In this context, this study evaluates the rheological behaviour of oil well cement slurries containing granite cutting waste. The slurries were formulated with additions of 10%, 15%, and 20% of granite waste (by weight of cement-BWOC), as well as reference slurry containing only water and Portland cement. The results revealed that slurries containing up to 20% of granite waste presented satisfactory rheological properties, proving their potential for application in oil well cementing operations. Moreover, the addition of 20% of granite waste was not considered detrimental to the compressive strength of the cement slurries.

The Use of the Granite Waste Material as an Alternative for Silica Flour in Oil-Well Cementing

“…The possibility of reducing the oil-well cementing cost by replacing the silica flour with the inexpensive granite waste material for applications of cementing the oil-wells hightemperature conditions was evaluated. Three concentrations of the granite waste material (30,35, and 40% BWOC) were evaluated to be used as alternative for 35% silica flour. Based on the evaluated properties and the obtained results, the following points are concluded:…”

“…The use of granite waste in oil-well cementing was suggested by Moura et al 35 The effect of different concentrations of the granite waste material (10, 15, and 20%) on the rheology of the cement under two temperature conditions of 80 and 102 °F was investigated. As an outcome, they concluded that the rheological properties of the cement including up to 20% of granite waste was acceptable.…”