Simulation Experiments on the Reaction of CH4-CaSO4 and Its Carbon Kinetic Isotope Fractionation

Simulation Experiments on the Reaction of CH4-CaSO4 and Its Carbon Kinetic Isotope Fractionation

YueChangtao;LiShuyuan;DingKangle;ZhongNingning

【期刊名称】《石油科学：英文版》 【年(卷),期】2005(002)001

【摘要】Thermochemical sulfate reduction (TSR) in geological deposits can account for the accumulation of H,S in deep sour gas reservoirs. In this paper, thermal simulation experiments on the reaction of CH4-CaSO4 were carried out using an autoclave at high temperatures and high pressures. The products were characterized with analytical methods including carbon isotope analysis. It is found that the reaction can proceed to produce H2S, H2O and CaCO3 as the main products. Based on the experimental results, the carbon kinetic isotope fractionation was investigated, and the value of Ki(kinetic isotope effect) was calculated. The results obtained in this paper can provide useful information to explain the occurrence of H2S in deep carbonate gas reservoirs.

【总页数】4页(P.82-85)

【关键词】热化学硫酸还原;模拟试验;CH4-CaSO4;碳动态同位素;硫化氢;硫酸钙;甲烷

【作者】YueChangtao;LiShuyuan;DingKangle;ZhongNingning 【

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StateKeyLaboratoryofHeavyOilProcessing,UniversityofPetroleum,Beijing102249,China 【正文语种】英文 【中图分类】O613.2 【相关文献】

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4.Kinetic study on the reaction between CO2-CO and wustite using the isotope exchange method [J], Teng Zhang; Xiao-jun Hu; Kuo-Chih Chou

5.Computation of kinetic isotope effects for enzymatic reactions [J], GAO JiaLi

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