Page tree

Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

LaTeX Math Inline
bodyr_c

outer radius of the casing

LaTeX Math Inline
body--uriencoded--r_%7Bci%7D

inner radius of the casing

LaTeX Math Inline
bodyh_c = r_c - r_i

casing wall thickness

LaTeX Math Inline
bodyr_w

wellbore radius by drilling bit

LaTeX Math Inline
body--uriencoded--\displaystyle U_%7Bti%7D %7Bci%7D = \frac%7B\lambda%7D%7B2 \, r_%7Bci%7D%7D \, %7B\rm Nu%7D_%7Bci%7D

Pipe Flow Heat Transfer Coefficient

LaTeX Math Inline
body--uriencoded--\displaystyle U_c = \frac%7B\lambda_c%7D%7Br_%7Bci%7D \cdot \ln (r_c/r_%7Bci%7D)%7D

Casing Wall Conductive Heat Transfer Coefficient

LaTeX Math Inline
body--uriencoded--\displaystyle U_%7Bcem%7D = \frac%7B\lambda_%7Bcem%7D%7D%7Br_c \cdot \ln (r_w/r_c)%7D

Cement Conductive Heat Transfer Coefficient

LaTeX Math Inline
body\lambda

thermal conductivity of fluid moving through the tubing

LaTeX Math Inline
body\lambda_с

thermal conductivity of casing material

LaTeX Math Inline
body--uriencoded--\lambda_%7Bcem%7D

thermal conductivity of cement

...