| Simulation Experiments on the Reaction of CH_4-CaSO_4 and Its Carbon Kinetic Isotope Fractionation |
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| 引用本文： | Yue Changtao,Li Shuyuan,Ding Kangle and Zhong Ningning (State Key Laboratory of Heavy Oil Processing,University of Petroleum,Beijing 102249,China). Simulation Experiments on the Reaction of CH_4-CaSO_4 and Its Carbon Kinetic Isotope Fractionation[J]. 石油科学(英文版), 2005, 0(1) |
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| 作者姓名： | Yue Changtao Li Shuyuan Ding Kangle and Zhong Ningning (State Key Laboratory of Heavy Oil Processing University of Petroleum Beijing 102249 China) |
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| 作者单位： | State Key Laboratory of Heavy Oil Processing，University of Petroleum，Beijing 102249，China |
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| 摘 要： | 1. Introduction The association of sulfate with hydrocarbon isthermodynamically unstable in deep sulfate-richcarbonate reservoirs. Thermochemical sulfate reduction(TSR) by hydrocarbons takes place in geologicaldeposits, which can account for the accumulation ofH2S in deep sour gas reservoirs (Claypool, et al., 1989;Machel, 1987, 1998; Tridinger, et al., 1985; Wang, et al.,2002; Worden, et al., 1996). Wherever it is present ingas reservoirs, H2S causes natural gas destr…
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Simulation Experiments on the Reaction of CH_4-CaSO_4 and Its Carbon Kinetic Isotope Fractionation |
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| Yue Changtao,Li Shuyuan,Ding Kangle and Zhong Ningning. Simulation Experiments on the Reaction of CH_4-CaSO_4 and Its Carbon Kinetic Isotope Fractionation[J]. Petroleum Science, 2005, 0(1) |
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| Authors: | Yue Changtao Li Shuyuan Ding Kangle Zhong Ningning |
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| Abstract: | Thermochemical sulfate reduction (TSR) in geological deposits can account for the accumulation of H2S 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. |
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| Keywords: | Thermochemical sulfate reduction (TSR) hydrogen sulfide (H2S) simulation experiment carbon kinetic isotope fractionation |
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