Effect of sand concentration in foam fracturing
Conference
·
· Proc. Annu. Southwest. Pet. Short Course; (United States)
OSTI ID:5811206
Foams used as fracturing fluids for formation stimulation are mixtures of compressed nitrogen gas and a base liquid. The quality of a fracturing foam refers to the volumetric gas content of the foam and usually is in range of 65 to 95%. The addition of sand to a fracturing foam can have a significant effect on the actual flow rate of the base liquid at the surface. This effect on the surface will change the foam flow rate and foam quality desired down hole. The hydrostatic pressure exerted by the fracturing foam also will be effected as sand concentration changes. Using the true volume of sand as a basis, several equations are presented which compensate for the effects of sand concentration in foam. A well-designed foam frac job is necessary for proper implementation of the stimulation treatment.
- OSTI ID:
- 5811206
- Report Number(s):
- CONF-8204172-
- Conference Information:
- Journal Name: Proc. Annu. Southwest. Pet. Short Course; (United States) Journal Volume: 29
- Country of Publication:
- United States
- Language:
- English
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