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Lisa Molofsky

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Lessons Learned:<br />

Lines of Evidence for Stray Gas Investigations<br />

Geology/<br />

Hydrogeology<br />

Presence of gas-bearing strata, fault and<br />

fracture systems, aquifer dynamics<br />

History<br />

Regional<br />

Patterns<br />

Well<br />

Construction<br />

Prior oil and gas activity, stray gas<br />

incidents and evidence of naturallyoccurring<br />

gas seeps.<br />

Regional patterns of methane occurrence<br />

and composition.<br />

Construction and completion details for<br />

affected water wells and nearby gas wells.<br />

Geochemical<br />

Fingerprinting<br />

Analyses of composition and isotopic<br />

signatures of gas sources.

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