Rapid steam allocation management and optimization for oil sands
US10975668B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2018 |
| Grant date | Apr 13, 2021 |
| Priority date | — |
| Expiry date | Apr 24, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/07
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The current subject matter is related to optimizing resource (e.g., steam) allocation within steam assisted gravity drainage (SAGD) system, and predicting future oil production from production wells of the SAGD system. In some embodiments data characterizing a hypothetical rate of steam injection into injection wells of the SAGD system can be applied within a capacitance resistance model (CRM) to determine an estimated rate of future fluid production, the fluid being a mixture of oil and water. An emulsion viscosity, as well as the estimate rate of future fluid production, can be applied within a Koval fractional flow model to determine an estimate rate of future oil production. In some cases, the hypothetical rate of steam injection can be optimized based on an optimization objective, e.g., a steam-to-oil ratio (SOR).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.