DefinePK

Abstract

Because of the significantly larger drainage area over the vertical wells, it is recognized that horizontal wells produce more than twice the flow rate of a vertical well under the same drawdown pressure which also reduces the occurrence of coning. Then, horizontal well drilling has increased around the well; therefore, it is so important to describe and predict well pressure behavior and develop tools for well test data interpretation. Although, there is already a methodology for pressure transient analysis for the mentioned well configuration, known as TDS technique, this does not included neither hemilinear flow, parabolic flow nor open flow boundaries. Besides, most of the equations for gas well have not been introduced in the literature. This paper deals with this situation and presents a detailed synthetic interpretation example of the complemented interpretation technique.