Patent · US Active

Fast mud gas logging using tandem mass spectroscopy

US8536524B2 · kind B2 · utility

21Cited by

1References

29Claims

0Family size

Assignee

SCHLUMBERGER TECHNOLOGY CORPORATION · US

Inventors

Andrew E. Pomerantz · Lexington, US
Jerome Breviere · Taverny, FR

Key dates

Filing date	Oct 6, 2011
Grant date	Sep 17, 2013
Priority date	—
Expiry date	Apr 7, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH01J49/004
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Systems and methods for high speed mud gas logging are described. A general workflow of mud gas logging uses tandem mass spectroscopy. The workflow involves first separating the volatile components of the hydrocarbons (typically C8 and below) from the drilling fluid using a fluid extractor (or degaser). Extracted gases are then diluted in air and transported to an analyzer, which measures the concentration of each of those gases in air. A tandem mass spectroscopy-based analyzer is used that is able to quantify each of those hydrocarbon components, including resolving isomeric species, while tolerating the presence of the non-hydrocarbons. According to some embodiments, triple quadrapole mass spectroscopy is used.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.