The completion phase of well operations begins when drilling is completed, and ends when the well is brought on production. Typical completion operations include, but are not restricted to, perforating, placing gravel packs, acidizing, fracturing and setting production tubing and packers. The goal of these operations is to obtain a well which has a productivity that is not limited by the completion itself. While this sounds easy to accomplish, completion techniques are commonly used in many parts of the world that restrict the productivity of the well.
The purpose of this manual is to provide information on completion techniques for maximizing productivity and longevity of gravel packed wells. To achieve this purpose, the factors that can have a negative effect on the flow of fluids from a well should be understood. The nature of fluid flow towards a wellbore and a description of the potential restrictions to production are described.
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