Experimental Analysis and Cement Slurries Properties Evaluation Using Novel Additives

Abstract

This project focuses on the changes in the characteristics and properties of cement slurry while adding different environmentally friendly additives. To properly implement the cementing job, cement should have the desired properties and characteristics. It should have very low permeability, high strength, sufficient thickening time and pump-ability to reach the target depth and the desired density, depending on the conditions of the well. To control the cement properties and obtain the desired characteristics, additives are usually used and mixed with plain cement. In this project, new and novel additives, including cactus powder, hay bran, hay bran ash, rice husk, and rice husk ash were used and mixed separately with the plain cement. The plain and blended cement samples were exposed to various API cement tests, including the compressive strength test, gas-permeability test, fineness test, and density test. This paper focuses mainly on the results of the compressive strength test conducted on the plain cement and rice husk ash, hay bran ash blended with cement. Results showed that the rice husk ash blended cement at a 10% replacement level exhibited the highest value of compressive strength, whereas the other non-ash additives adversely affected the strength of the cement.