Determination of fracturing fluid loss rate from pressure decline curve
US4398416A · kind A · utility
28Cited by
1References
6Claims
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Key dates
| Filing date | Aug 6, 1981 |
| Grant date | Aug 16, 1983 |
| Priority date | — |
| Expiry date | Aug 6, 2001 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/008
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The fluid loss during the extension of a fracture into a subterranean formation is determined from pressure decline measurements of a calibration fracture extending from a wellbore into subterranean formation. During the decline of the calibration fracturing treatment pressure, the period of time while the pressure decline is primarily controlled by fluid loss is selected. The fluid loss coefficient for fracturing fluids having similar characteristics is determined from the pressure decline during the selected period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.