Closed loop additive injection and monitoring system for oilfield operations
US7389787B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2005 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | Jul 9, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7761
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system is provided that monitors at the wellsite injection of additives into formation fluids recovered through wellbores and controls the supply of such additives from remote locations. The selected additive is supplied from a source at the wellsite into the wellbore via a suitable supply line. A flow meter in the supply line measures the flow rate of the additive through the supply line and generates signals representative of the flow rate. A controller at the wellsite determines the flow rate from the flow meter signals and in response thereto controls the flow rate of the additive to the well. The wellsite controller interfaces with a suitable two-way communication link and transmits signals and data representative of the flow rate and other parameters to a second remote controller. The remote controller transmits command signals to the wellsite controller representative of any change desired for the flow rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.