What is perforation in drilling?
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Similarly one may ask, why does the well need to be perforated?
With cased hole completions, a cement liner or casing will have been deployed in order to separate the oil or gas producing formation from the well bore. When the well is ready to be brought into production, the final stage of completion is to perforate the liner so that the well can flow.
Secondly, what is used to perforate the casing? The process of perforation involves lowering a perforating gun into a wellbore to a planned depth and energizing the gun to be safely fired. When perforating a well, shape charges are fired and then energy from the explosion will create tunnels through casing, and cement and then into a reservoir.
Also, what is perforation?
A perforation is a small hole in a thin material or web. The process of creating perforations is called perforating, which involves puncturing the workpiece with a tool. Perforations are usually used to allow easy separation of two sections of the material, such as allowing paper to be torn easily along the line.
How does a perforating gun work?
The primary objective of a perforating gun is to provide effective flow communication between a cased wellbore and a productive reservoir. To achieve this, the perforating gun “punches” a pattern of perforations through the casing and cement sheath and into the productive formation.