Well treatment fluid diversion with low density ball sealers
Patent
·
OSTI ID:6508395
A ball sealer is described for use as a diverting agent when treating a well having a perforated casing. The ball sealer is sized to plug a perforation and has a density less than the treating fluid. The ball sealer is made of a core material, such as syntactic foam or polymethylpentene, and a covering of a thin layer of an elastomeric material. After some of the treating fluid has been injected into the well, the ball sealers are injected and carried by the fluid flow down to the perforations where they seat and divert the further injection of treating fluid through the remaining open perforations.
- Assignee:
- Exxon Production Research Co.
- Patent Number(s):
- US 4102401
- OSTI ID:
- 6508395
- Country of Publication:
- United States
- Language:
- English
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