Maximum length of a slanted well in a given reservoir thickness

Input(s)

$\mathrm{h}$: Pay Zone Thickness (ft)

$\alpha$: Angle of inclination of drilling (degrees)

Output(s)

L: Length of Slant Wellbore (ft)

Formula(s)

$$ L=\frac{h}{\cos \left(\alpha * \frac{\pi}{180}\right)} $$

Reference(s)

Horizontal Well Technology, Joshi, Page: 96.