کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7746206 | 1498280 | 2014 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
All-solid-state sensors used in drilling muds to prevent H2S gas evolution on oil wells
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
During oil or water drilling, the evolution of gaseous hydrogen sulfide (H2S) may occur. A better solution would be to prevent the evolution of the gas by simultaneously measuring the presence of sulfide ions (S2-) in the drilling mud and the pH, sulfide ions being predominantly under gaseous H2S form when pH is smaller than 7. We proposed then to perform in situ measurements, using a potentiometric technique, to simultaneously record the presence of sulfide and the pH of the mud. In case of a rapid decrease of pH, human action could be done to rapidly increase the pH and to prevent H2S evolution. A new type of all-solid-state reference electrode based on thick films of lithium lanthanum titanium oxide (LLTO) has therefore been developed. This reference electrode is associated with a solid state pH electrode and an ionic selective electrode for the detection of sulfide ions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Ionics - Volume 262, 1 September 2014, Pages 279-282
Journal: Solid State Ionics - Volume 262, 1 September 2014, Pages 279-282
نویسندگان
Claude Bohnke, Stéphanie Lorant, Veyis Gunes, Jean-Yves Botquelen, Jérôme Breviere,