Use of diverting agents for injection well stimulation
Patent
·
OSTI ID:5071839
This invention relates to increasing the injectivity profile of injection wells in fluid communication with a heterogeneous formation. Such is accomplished with micellar dispersions containing a diverting agent or by intermittently injecting a micellar dispersion and then a diverting agent. The micellar dispersion is comprised of hydrocarbon, surfactant, and aqueous medium. The diverting agent can be an aqueous or hydrocarbon mixture containing a solubilized or suspended material which will effectively block the more permeable zones within the heterogeneous formation. From about 1 to about 500 gal per vertical ft of oil-bearing formation of the micellar dispersion is normally sufficient to stimulate the formation. (9 claims)
- Assignee:
- Marathon Oil Co.
- Patent Number(s):
- US 3707194
- OSTI ID:
- 5071839
- Country of Publication:
- United States
- Language:
- English
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