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INFLUENCE OF CNT-NANOPARTICLES IN THE FILTRATE CHARACTERISTICS AND FILTER CAKE FORMATION OF A WATER-BASED DRILLING FLUID

Anoop Kanjirakat
Mechanical Engineering Program, Texas A&M University at Qatar, Doha, Qatar

Arnel Carvero
Petroleum Engineering Program, Texas A&M University at Qatar, Doha, Qatar

Reza Sadr
Texas A&M University at Qatar, Education City, Doha; J. Mike Walker ’66 Department of Mechanical Engineering, Texas A&M University, College Station, USA

Mahmood Amani
J. Mike Walker ’66 Department of Mechanical Engineering, Texas A&M University, College Station, USA

DOI: 10.1615/TFEC2020.env.032112
pages 247-252

Abstract

In a reservoir drilling application, the drilling mud should minimize the amount of the filtrate fluid entering into the reservoir formation. To ease the drilling process, the filter cake formed should also be thin, stable, and of uniform distribution. The addition of nanoparticles into the drilling mud is expected to improve these functionalities. In the present work, the effect of addition of carbon nanotubes (CNT) into a water-based drilling mud sample in improving its filtrate characteristics is studied. The filtrate volume, dry and wet weights, and thickness of the filter cakes are measured to evaluate the filtrate characteristics. Ceramic disks of two pore-throat sizes are used in the experimentation. The addition of CNT particles is observed to beneficial in reducing the filtrate amount or fluid loss. An increase in nanoparticle loading is observed to have increased the filtrate cake thickness. The porosity of the filter cake formed is observed to be lower than that of the ceramic disk used.

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