Patent ID: 8596380
Filing Date: 2013-12-03
Classification: G01N

Abstract:
1. A measurement system configured to assess hydrogen sulfide (H2S) concentration within drilling fluid, the drilling fluid being part of a drilling system configured to drill a wellbore in the Earth, the measurement system comprising: a) an intermittent assessment subsystem configured to quantitatively determine hydrogen sulfide concentration in the drilling fluid, wherein such determining is carried out on an intermittent basis; and b) an ongoing assessment subsystem configured to qualitatively assess changes in hydrogen sulfide concentration in the drilling fluid in situ and on an ongoing basis, the ongoing assessment subsystem comprising: wherein the ongoing assessment of changes in hydrogen sulfide concentration by the ongoing assessment subsystem is calibrated with the quantitative determination of hydrogen sulfide concentration provided intermittently by the intermittent assessment subsystem, so as to provide for a qualitative, in situ, continuous monitoring of hydrogen sulfide in the drilling fluid.