This study looks
into the comparison of the different productivity index
model, in other to know that which will be suitable for high
productivity and it also investigates the effect of
reservoir and well parameters on the productivity index of
horizontal well. It also analyses the effect of skin due to
partial completion on productivity index using the three
partial well completion configurations of Brons and Marting.
The results indicate that PI increases with increase well
length for all the productivity index models, the Giger’s
model will produce a higher productivity than the other
models for the same well length variations. It also shows PI
increased with increase in well length and anisotropy value,
and that horizontal wells are better suited for thin beds.
The result of the effect of completion method on skin shows
that wells that are perforated at equal interval along the
wellbore experienced a little or no skin effect thereby
Keywords: Comparative study, Productivity index,
Horizontal well models, Horizontal well.