Methods for completing wells traversing earth formations
Patent
·
OSTI ID:6048804
A perforated well bore interval traverses one or more earth formations for isolating the perforated interval from the remainder of the well bore. An enclosed chamber that is initially retained at a reduced pressure is then suddenly placed into fluid communication with the isolated interval to rapidly produce a limited volume of connate fluids for flushing foreign material and contaminants from the formations surrounding the perforations. Thereafter a clean fluid is suddenly surged back through the perforations to clear the entrances to the perforations and force the fluid under an elevated pressure into the surrounding formations. Then, the well is completed either by performing a typical acidizing, fracturing or formation-consolidation operation or by installing a typical gravel pack in the casing over the entrances to the perforations. (13 claims)
- Assignee:
- Schlumberger Technol. Corp.
- Patent Number(s):
- US 3627045
- OSTI ID:
- 6048804
- Country of Publication:
- United States
- Language:
- English
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