Estimating diffusion coefficient for a reservoir stimulation fluid
US9109440B2 · kind B2 · utility
3Cited by
0References
15Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 21, 2013 |
| Grant date | Aug 18, 2015 |
| Priority date | — |
| Expiry date | Feb 7, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/25
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The subject disclosure relates to matrix acidizing. More specifically, systems and methods are described for estimating a diffusion coefficient for an acid fluid used to stimulate a subterranean reservoir wherein a spent acid is formulated that includes one or more by-products of the reaction between the fluid and rock. A rock sample, such as in the form of a rotating disk is exposed to spent acid under elevated pressure and temperature conditions while the fluid is sampled and analyzed. A diffusion coefficient for the spend acid is estimated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.