Build wellhead position hydrodynamics model , analog the hydrogen sulfide concentration in a condition of no wind or a wind and do researches about testing method of hydrogen sulfide at wellhead and cellar, aimed at hydrogen sulfide spreading and never being easily detected when it spills over from wellhead during drilling wells. It shows that without wind the hydrogen sulfide gas accumulates at the cellar and the speed of wind influents almost nothing on the distribution of the concentration of hydrogen sulfide at the board located in the wellhead and influents much to the hydrogen sulfide concentration at the cellar. Depending on that, suggest place a dispersive sensor upside down at the wellhead and a suction sensor at the cellar to test the hydrogen sulfide concentration accurately.
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张兴全,李相方,李玉军,等. 井口硫化氢气体扩散及检测方法研究[J]. 科学技术与工程, 2011, (28): . zhangxingquan, lixiangfang, LI Yujun, et al. Wellhead hydrogen sulfide gas diffusion and detection[J]. Science Technology and Engineering,2011,(28).