Rheological properties measurement of Mucuna solannie as cement slurry extender: characterization and verification using rheological models

Igwilo K Chinwuba,Amaefule C Vivian,Uwaezuoke Nnaemeka,Abubakar U Raji,Onyebuchi Nwanwe

doi:10.14419/ijet.v9i4.30934

Abstract

Rheological properties of lead cement slurry with Mucuna solannie admixture as an extender was measured in accordance with API standard. Bentonite extender was used as a control. The elemental and oxide compositions of Mucuna solannie were determined using Scanning Electron Microscope and X-Ray Florescence (XRF) methods, and rheological properties were obtained using rheometer after conditioning. The rheological data from Mucuna solannie and bentonite lead slurries were validated using Bingham Plastic and Herschel-Bulkley models. The result showed that Mucuna solannie contains high carbon atomic concentration and is responsible for its high rheological properties values. Lead slurry prepared with Mucuna solannie gave higher plastic viscosity, yield point and gel strength than that of bentonite. Herschel-Bulkley model described the rheological properties better than Bingham Plastic model. Due to high rheological properties values of the slurry prepared with Mucuna solannie, dispersant is needed for the optimization of the yield point and gel strength.

Highlights

The rheology of conventional cement paste is not as complicated as that of cement slurries used in oil well operations
From Fable 9, it can be seen that cement formulated with bentonite has lower plastic viscosity and yield point compared to that of the cement formulated with Mucuna solannie
This showed that lead slurry prepared with Mucuna solannie has more resistance to flow, it has a better transport capacity than that of lead slurry prepared with bentonite

Summary

Introduction

The rheology of conventional cement paste is not as complicated as that of cement slurries used in oil well operations. Other researchers investigated the effects of temperature on water-based mud properties like Mucuna solannie mud and Detarium microcarpum, Brachystegea eurycoma, Pleurotus mud [3], [4] They discovered that rheological properties decreased with temperature increase, and fluid loss increased with temperature increase. Both drilling mud and cement slurry are all pseudo-plastic fluids; they have similar behavior in terms of rheological properties because they are all pseudo plastic fluids Another researcher investigated chemical admixtures effects on rheology mechanisms in oil/water cement slurries at varying temperatures where advanced shear-strain/shear-stress rheometer was applied [5]. The result was greater repulsion which enhanced the cement paste rheological properties [6] Rheological properties optimization, such as plastic viscosity and yield stress, can be achieved with statistical design if cementitious materials supplements are applied at varying temperatures. Bingham Plastic and Herschel-Bulkley models are the two rheological models applied in this research where cement slurry was prepared with Mucuna solannie as extender, while cement slurry prepared with bentonite on equal concentration was used as a control

Methods

Results

Conclusion