Apparatus and methods for determining in real-time efficiency of extracting gas from drilling fluid at surface

US11686168B2 · kind B2 · utility

Assignee

• Baker Hughes, a GE company, LLC · US

Inventors

• Brian Ochoa · Hannover, DE
• Nicklas Jeremias Ritzmann · Celle, DE

Key dates

• Filing date: Aug 20, 2020
• Grant date: Jun 27, 2023
• Expiry date: Jul 1, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2030/8854
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A system and method for determining an efficiency of gas extraction. A chamber allows inflow and outflow of the drilling fluid. An amount of gas extracted from a drilling fluid flowing through the chamber at a constant rate during a dynamic process is measured. A dissolution curve is obtained indicative of a gas remaining in the chamber after the dynamic process. An amount drawn from the chamber during a static process subsequent to the dynamic process is measured. An amount of gas from the drilling fluid during the static process is determined from a difference between the amount of gas drawn from the chamber during the static process and an amount of gas indicated by the dissolution curve. The gas extraction efficiency is determined from a ratio of the amount of gas extracted during the static process and the amount of gas extracted during the dynamic process.