Wire line method and apparatus for cleaning well perforations
Patent
·
OSTI ID:5377174
Sand control operations in cased and perforated wells equipped with a tubing string, such as a production tubing string, are improved by first cleaning the perforations. This is accomplished by lowering a tool comprising a chamber of fixed volume, an actuator for rapidly opening the chamber, and a means for packing off the tubing string above the production interval into the well on a wire line. The interval adjacent the perforations is packed off. The chamber is rapidly opened into communication with fluids in the well bore to surge fluid from the surrounding earth formation through the perforations and into the well. (11 claims)
- Assignee:
- Shell Oil Co.
- Patent Number(s):
- US 3712378
- OSTI ID:
- 5377174
- Country of Publication:
- United States
- Language:
- English
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