Method of early predicting paraffin deposition risks during production and transport
US6611763B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2001 |
| Grant date | Aug 26, 2003 |
| Priority date | — |
| Expiry date | Jun 16, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/2811
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Method of predicting paraffin deposition risks during hydrocarbon production and/or transport, applicable at an early reservoir characterization and production stage. It comprises forming a database characterizing the hydrocarbons in the formation, including density data acquired by well logging and data obtained by analysis of rock samples taken from the reservoir formation, an analytical representation of the hydrocarbons by a limited number of pseudo-components comprising each certain hydrocarbon classes with a definition of their respective mass fractions and application of data of said base to a thermodynamic model for determining one or more parameters indicative of the crystallization conditions such as, for example, the starting crystallization temperature, the solid fraction that precipitates when the temperatures falls below this starting crystallization temperature, etc. Applications: hydrocarbon production field valuation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.