Simultaneous analysis of multiple components in well fluids

US11169114B2 · kind B2 · utility

Assignee

• SCHLUMBERGER TECHNOLOGY CORPORATION · US

Inventors

• Sharath Chandra Mahavadi · Lexington, US
• Simon Ivar Andersen
• Olivier Porcherie · Paris, FR
• Isabelle Couillet · Kuala Lumpur, MY

Key dates

• Filing date: Jan 20, 2015
• Grant date: Nov 9, 2021
• Expiry date: Jan 20, 2035

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21B49/00
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The current application discloses methods and systems to analyze on-site and in real-time or quasi real-time the composition of the well fluid before or during use or disposition. The method is based on capillary electrophoresis (CE) and does not require the addition of tracers into the well fluid or additive. Based on the significance of each additive on the well fluid properties, it can be decided to determine the concentration of all additives or only one or a limited number of the additives present in the fluid, and the concentrations can be adjusted as needed to reach the desired target concentration(s).