带压含硫气田水中H2S的测定汪玉洁1迟永杰2涂振权2高晓根21.保山学院资源环境学院2.中国石油西南油气田公司天然气研究院摘要:目的捕集和检测带压含硫气田水常规减压取样过程排放闪蒸气中损失的H2S组分,以实现带压含硫气田水中H2S含量更加准确的测定,为优化和提升闪蒸气H2S处理装置的设计和净化效率提供数据支撑。方法针对当前气田水减压平衡处理后H2S测定结果明显偏低的问题,从带压液体取样和H2S气体分析检测两个方面开展研究,讨论了取样装置、取样方法、分析检测方法、样品前处理、酸液用量和汽提时间等参数的影响。结果实现了等压取样,汽提时间为5min,样品无须过滤前处理,解吸液为去离子水,以经典碘量法检测H2S。结论通过比较实际样品带压和减压条件下H2S含量的测定结果,表明该技术对准确测定带压含硫气田水中H2S含量更加可靠,并将对其他带压溶液中溶解性气体的测定提供可借鉴的思路。关键词:气田水;带压溶液;H2S;碘量法DOI:10.3969/j.issn.1007-3426.2023.04.018引用格式:汪玉洁,迟永杰,涂振权,等.带压含硫气田水中H2S的测定[J].石油与天然气化工,2023,52(4):105-109.WANGYJ,CHIYG,TUZQ,etal.DeterminationofH2Sinthepressurizedsulfur-containinggasfieldwater[J].ChemicalEngineeringofOil&Gas,2023,52(4):105-109.DeterminationofH2Sinthepressurizedsulfur-containinggasfieldwaterWangYujie1,ChiYongjie2,TuZhenquan2,GaoXiaogen21.CollegeofResourceandEnvironment,BaoshanUniversity,Baoshan,Yunnan,China;2.ResearchInstituteofNaturalGasTechnology,PetroChinaSouthwestOil&GasfieldCompany,Chengdu,Sichuan,ChinaAbstract:ObjectiveCapturinganddetectingthelostH2Scomponentintheemittedflashgasduringconventionaldecompressionsamplingtowardspressurizedsulfur-containinggasfieldwatercanrealizethemoreaccuratedeterminationofitsH2Scontent,andprovidedatasupportforoptimizingandupgradingthedesignandpurificationefficiencyofH2Streatmentunitoverflashgas.MethodsConsideringtheproblemthatthedeterminationresultofH2Sforgasfieldwaterafterthedecompressionandbalancetreatmentareobviouslylow,thisworkconductstheresearchfromtheaspectsofpressurizedliquidsamplingandH2Sgasanalysistodiscusstheinfluencesofparametersincludingsamplingdevice,samplingmethod,analysismethod,samplepretreatment,acidconsumptionands...
