Nano-clays as additives for controlling filtration properties of water-bentonite suspensions

Jaber Taheri Shakib, Vahid Kanani, Peyman Pourafshary

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Formation damage is a process that impairs the permeability of a reservoir and consequently decreases the natural flow of fluids from the reservoir into the formation. This phenomenon may occur due to various mechanisms, which reduces the well production. One of the most important factors that cause formation damage is drilling fluid invasion. Hence, designing additives for drilling fluid to minimize filtration into the formation is essential. Prior to the mud cake development, the primary factor involved in nano particles movement through the formation matrix seems to be due to the extra small size of these particles. However, in the case of mud cake creation, the nano particles bridging provides a barrier by which the transport of these tiny materials would be decreased substantially. In this study, the effect of different nano-materials like nano titanium, nano copper oxide, nano alumina, and nano-clay on drilling fluid filtrate is examined. Viscosity, filtration, and rheological properties of the newly designed mud were measured to characterize the formation damage due to mud invasion. Nano clay shows the best performance in controlling filtration and at a concentration of 6% it was able to reduce the filtration rate by about 5% more than conventional additives.

Original languageEnglish
Pages (from-to)257-264
Number of pages8
JournalJournal of Petroleum Science and Engineering
Volume138
DOIs
Publication statusPublished - Feb 1 2016

Fingerprint

Bentonite
bentonite
Drilling fluids
drilling fluid
Clay
mud
clay
damage
Water
water
Copper oxides
aluminum oxide
titanium
Flow of fluids
Alumina
viscosity
Titanium
oxide
Viscosity
permeability

Keywords

  • Bentonite
  • Filtration
  • Nano
  • Rheology
  • Viscosity

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Fuel Technology

Cite this

Nano-clays as additives for controlling filtration properties of water-bentonite suspensions. / Shakib, Jaber Taheri; Kanani, Vahid; Pourafshary, Peyman.

In: Journal of Petroleum Science and Engineering, Vol. 138, 01.02.2016, p. 257-264.

Research output: Contribution to journalArticle

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