Abstract
Abstract Being a principal reservoir engineering tool, welltesting can yield very important information that can be integrated into models generated from other data sources to form more reliable models. It has been observed that welltests can be exceptionally useful when conducted in closed systems due to the significance of information that can be extracted with regard to boundaries and limits in addition to the other routinely calculated parameters; permeability and skin at one point in time. However, the concept of a sequence of welltests on the same well has been found even more important in improving the oil recovery from closed sandstone lenses in the Bahrain field. Conducted on a specific well situated within a sand lens, sequential welltesting yielded valuable information that assisted in understanding the drive mechanism and the deteriorating reservoir parameters, permeability and skin. Such method was found crucial in improving the recovery from the sand lens from a reservoir as well as single well treatment perspective. In this paper an example of how such technique aided in improving the oil recovery from a small sand lens is presented.
Published Version
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