Asian Journal of Microbiology, Biotechnology & Environmental Sciences Paper

Vol 14, Issue 2, 2012; Page No.(167-174)

FORMULATION OF WATER-BASED DRILLING FLUID USING LOCAL MATERIALS

FRANCIS D. UDOH AND ANIETIE N. OKON

Abstract

In a quest to provide a substitute for foreign bentonite as a drilling fluid in the oil and gas industry in Nigeria, local clay was obtained from Ewet-Offot, Akwa Ibom State, Nigeria. Water-based mud was formulated from the clay after its properties were determined and compared with those of bentonite, the clay of choice for drilling operations. The results obtained show that there was a significant difference in the formulated drilling fluids rheological properties and the pH values when compared to those of bentonite. This is as a result of low concentration of sodium cations (Na++) which hinders its swelling tendency as well as clay water attraction. When beneficiated with soda ash (Na2CO3) and sweet potato starch at a concentration of 5.0g and 50g respectively to 350mL of the local mud, the muds pH value increased by 70% from an initial value of 5.65 to 9.60 while the apparent viscosity, yield point and plastic viscosity increased by 229%, 200% and 250% respectively. With the addition of barite (BaSO4) content of 10g to 350mL of the formulated drilling fluid, the clay density improved by 7% from an initial value of 8.60lb/gal to 9.20lb/gal. Therefore, at considerable concentration, the Ewet-Offot clay exhibits good rheological properties that would compare favourably with those of bentonite when beneficiated with soda ash (Na2CO3) and sweet potato starch. Meaning, a possible drilling fluid could be formulated from Ewet-Offot clay.

Enter your contact information below to receive full paper.
Your Name :
Email:
Phone:
City:
Cost of Full Paper: Rs.75 for Indian Nationals or $20 (USD) for international subscribers.
By clicking on Request Paper you Agree to pay the above mentioned cost per paper.
  
Journal Issues
Vol 19, Issue 2, 2017
Vol 19, Issue 1, 2017
Vol 18, Issue 4, 2016
Vol 18, Issue 3, 2016
Vol 18, Issue 2, 2016
Vol 18, Issue 1, 2016
Vol 17, Issue 4, 2015
Vol 17, Issue 3, 2015
Vol. 17 Special Issue 2015
Vol 17, Issue 2, 2015
Vol 17, Issue 1, 2015
Vol 16, Issue 4, 2014
Vol 16, Issue 3, 2014
Vol 16, Issue 2, 2014
Vol 16, Issue 1, 2014
Vol 15, Issue 4, 2013
Vol 15, Issue 3, 2013
Vol 15, Issue 2, 2013
Vol 15 Issue 1, 2013
Vol 14, Issue 4, 2012
Vol 14, Issue 3, 2012
Vol 14, Issue 2, 2012
Vol.14, Issue 1, 2012
Vol.13, Issue 4, 2011
Vol.13, Issue 3, 2011
Vol.13, Issue 2, 2011
Vol.13, Issue 1, 2011
Vol.12, Issue 4, 2010
Vol.12, Issue 3, 2010
Vol.12, Issue 2, 2010
Vol.12, Issue 1, 2010
Vol 11, Issue 4, 2009
Vol 11, Issue 3, 2009
Vol 11, Issue 2, 2009
Vol 11, Issue 1, 2009
Vol 10, Issue 4, 2008
Vol 10, Issue 3, 2008
Vol 10, Issue 3, 2008
Vol 10, Issue 2, 2008
Vol 10, Issue 1, 2008
Vol 9, Issue 4, 2007
Vol 9, Issue 3, 2007
Vol 9, Issue 2, 2007
Vol 9, Issue 1, 2007
Vol 8, Issue 4, 2006
Vol 8, Issue 3, 2006
Vol 08, Issue 2, 2006
Vol 08, Issue 1, 2006
Vol 7 Issue 4, 2005
Vol 07, Issue 3, 2005
Vol 07, Issue 2, 2005
Vol 6 Issue 4, 2004
Vol 6 Issue 3, 2004
Vol 6 Issue 2, 2004
Vol 6 Issue 1, 2004
Vol 5 Issue 3, 2003
Vol 5 Issue 2, 2003
Vol 04, Issue 4, 2002
Vol 04, Issue 1, 2002
Vol 3 Issue 1-2, 2001
Vol 1 Issue 1-2, 2000
Vol 1 Issue 3-4, 1999
Vol 1 Issue 1-2, 1999
Looking for Past Issues? Click here to get them!!