The Effects of Various Parameters on Wellbore Stability During Drilling Through Shale Formations

Rafieepour, S ; Sharif University of Technology | 2015

734 Viewed
  1. Type of Document: Article
  2. DOI: 10.1080/10916466.2011.606253
  3. Publisher: Taylor and Francis Inc , 2015
  4. Abstract:
  5. Field evidence indicates that the thermal and chemical regimes in wellbore considerably affect the wellbore stability. This study presents a general coupled model for transport of solute, solvent and heat including their combined effects on the wellbore stability. Optimization of drilling fluid parameters is crucial for wellbore stability analysis particularly in high pressure-high temperature environments. The coupled effects of chemical potential and temperature gradients on fluid flow significantly change the pore pressure and stress around a borehole. The effects of various parameters such as mud weight, solute concentration gradient, shale properties, and temperature gradient on wellbore stability have been investigated. Copyright
  6. Keywords:
  7. Failure criterion ; Thermal osmosis ; Boreholes ; Drilling fluids ; Flow of fluids ; Oil field equipment ; Osmosis ; Shale ; Stability ; Temperature ; Thermal gradients ; Chemical osmosis ; Failure criteria ; Fluid parameters ; High pressure high temperature ; poro-chemo-thermo-elastic ; Solute concentrations ; Wellbore stability ; Wellbore stability analysis ; Chemical stability
  8. Source: Petroleum Science and Technology ; Volume 33, Issue 12 , 2015 , Pages 1275-1285 ; 10916466 (ISSN)
  9. URL: http://www.tandfonline.com/doi/full/10.1080/10916466.2011.606253