Rheological Behavior of Xanthan Gum Solutions to Estimate the Settling Velocity of Particles during Stops Drilling Operation

Bruno Arantes Moreira; Letícia Goulart Netto; Rafael Eduardo A. de Faria; Fábio de Oliveira Arouca; João Jorge Ribeiro Damasceno

doi:10.4028/www.scientific.net/MSF.727-728.1872

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Rheological Behavior of Xanthan Gum Solutions to Estimate the Settling Velocity of Particles during Stops Drilling Operation

Abstract:

The time-dependent viscosity is a desirable feature in drilling fluids. The gel formation process during circulation stops avoid the settling of particles generated by the drill bit, keeping the solids in suspension in the annular space. However, when larger particles breakdown the gel strength, interfere in the recovery of circulation, causing operational problems such as stuck pipe and other drilling complications. Within this context, this study evaluated the main factors that affect fluid-gel properties or the gelling process. Understanding the factors that influence the rheological behavior of drilling fluids was possible to estimate the settling velocity of particles during oil well drilling. Non-newtonian solutions were prepared with water and xanthan gum with mass concentration of 0.2%. The results showed that the gelation of xanthan gum solutions showed a rapid and non-progressive gelling as desired for drilling fluids.

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Periodical:

Materials Science Forum (Volumes 727-728)

Pages:

1872-1877

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.727-728.1872

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Online since:

August 2012

Authors:

Bruno Arantes Moreira, Letícia Goulart Netto, Rafael Eduardo A. de Faria, Fábio de Oliveira Arouca, João Jorge Ribeiro Damasceno

Keywords:

Stops Drilling Operation, Thixotropic Fluid, Xanthan Gum

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