Chemistry: analytical and immunological testing – Sulfur containing – Organic or sulfhydryl containing
Reexamination Certificate
2005-09-06
2005-09-06
Gakh, Yelena G. (Department: 1743)
Chemistry: analytical and immunological testing
Sulfur containing
Organic or sulfhydryl containing
C436S025000, C436S030000, C436S032000
Reexamination Certificate
active
06939717
ABSTRACT:
Described is a downhole method and apparatus for detecting hydrogen sulphide in formation fluids produced in a hydrocarbon well. The sensor system is located within or in communication with an extraction chamber used to extract hydrogen sulphide in a gaseous state from the formation fluid and preferably equipped with renewable sensing elements.
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Hart, J.P.
Jiang Li
Jones Timothy Gareth John
Mullins Oliver Clinton
Wu Xu
Batzer William B.
Gakh Yelena G.
Macquet Christophe
Schlumberger Technology Corporation
Wang William L.
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