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Minimizing formation damage during gravel pack operations

Patent ·
OSTI ID:6437706
A method is described for minimizing formation damage caused by intrusive fluids prior to a gravel packing operation in loosely consolidated formations penetrated by at least one well. The method comprises: filling the casing of the well with an underbalanced completion fluid; placing within the well a removable packer capable of isolating the space between the casing and the formation from the downhole well pressure; setting through the packer a first tubing suitable for perforating and stabilizing the flow of fluids into the well; perforating the casing; and introducing a blocking agent into the formation via the perforations which agent upon solidification is sufficient to minimize formation damage by avoiding the introduction of formation fluids.
Assignee:
Mobil Oil Corp., New York, NY
Patent Number(s):
US 4664191
OSTI ID:
6437706
Country of Publication:
United States
Language:
English