Organize samples for the lab

6 Ideas to Make a Flawless Transfer of Chain of Custody to the Lab

Imagine This… You have just finished a very large field program.  You must have collected nearly 100 samples, all different matrices (water, soil, sediment, product samples), and multiple analyses are needed.  You have COCs (chain of custody forms) filled out for everything, and you are driving over to the laboratory…

Methane is from a Deeper Thermogenic Source . . . Or, is it?

The carbon isotope signature of methane is often presented as the ‘silver bullet’ capable of identifying whether soil gas is from a deeper thermogenic source or produced by microbial processes. The stakes are high because failing to identify a gas migration (GM) issue can have serious environmental consequences…

Why ethane is a key indicator to identify gas migration

Ethane is a reliable geochemical tracer that can be used as a single line of evidence to identify a potential gas migration issue. Ethane and longer chain hydrocarbons are produced during the thermal degradation of organic matter (kerogen) over geological timescales. Microbial …