A perforation into the side of a borehole sets up a very high stress environment which may lead to rock collapse around the perforations. This study shows that a formation which has a low permeability, and is abnormally pressured, should be permeability, and is abnormally pressured, should be produced with a very limited drawdown so as to prevent produced with a very limited drawdown so as to prevent perforation collapse. perforation collapse.

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