The genesis of H<sub>2</sub>S associated with heavy oils in Hendijan and Bahregansar oilfields, Sarvak reservoir

Hosseiny, Ehsan; Baniasad, Alireza; Dehyadegari, E.

doi:10.1080/15567036.2013.831145

Cited by 6 publications

(1 citation statement)

References 11 publications

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“…At present, the genesis of H 2 S in coal seams is mainly explored from the aspects of the geological environment, sulfur isotopes, and geothermal history at home and abroad. Hosseiny et al 11 discussed thermal cracking, BSR, and deep migration and concluded that BSR was the main mechanism of H 2 S generation in oilfield reservoirs. Yongjie et al 12 introduced polyethylenimine into MOFs and found that it improved the adsorption performance of H 2 S and achieved clean and efficient utilization of coal.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Formation Mechanism of Hydrogen Sulfide in the 13# Coal Seam of Shaping Coal Mine

Ai,

Wang,

Sun

et al. 2024

ACS Omega

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In order to accurately predict the law of occurrence and migration of hydrogen sulfide (H 2 S) in the underground and effectively solve the problem of excessive concentration of H 2 S gas, laboratory experiments on the content of various forms of sulfur in coal, sulfur isotopes, thermal evolution history, and coal seam water samples were carried out by applying the theories of coal mine geology, microbiology, and analytical chemistry, and based on the experimental results, the cause of H 2 S gas was explored. Through the analysis of the geological conditions of the coal seam mined, it can be seen that the coal mine experienced the alternation of marine and continental phases in the process of coal formation and that there was no magma intrusion. The experimental results showed that iron sulfide in coal accounts for 73.25% of the total sulfur, indicating that the coal seam was rich in pyrite. The results of the isotope test showed that the sulfur isotopes in coal samples were all negative, indicating that the sulfur isotope fractionation in coal was large, the loss was serious, and the coal seam was greatly affected by seawater. According to the experimental results of vitrinite reflectance, it can be concluded that the highest temperature during the thermal evolution of the coal seam is 108.12 °C, which has not reached the temperature condition of sulfate thermochemical reduction. Comparing the concentration of acid ions in coal seam water and tap water, it was found that the concentration of SO 4 2− in coal seam water is low, while the concentration of HCO 3 − is high. According to the experimental results and theoretical analysis, the H 2 S gas in the high-sulfur coal mine was caused by microbial sulfate reduction. Finally, the transformation path of sulfur in the coal seam was deduced and analyzed. The results showed that sulfur in coal is positively correlated with H 2 S gas concentration.

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Section: Introductionmentioning

confidence: 99%

Analysis of the Formation Mechanism of Hydrogen Sulfide in the 13# Coal Seam of Shaping Coal Mine

Ai,

Wang,

Sun

et al. 2024

ACS Omega

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Multivariate thermochemical sulphate reduction (TSR) low temperature origin for H2S production: A Fars Provinance gas field

Torghabeh

Kalantariasl

Ghorbani

et al. 2021

Journal of Natural Gas Science and Engineering

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Reservoir gas isotope fingerprinting and mechanism for increased H2S: An example from Middle East Shanul gas field

Torghabeh

Kalantariasl

Kamali

et al. 2021

Journal of Petroleum Science and Engineering

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The genesis of H₂S associated with heavy oils in Hendijan and Bahregansar oilfields, Sarvak reservoir

Cited by 6 publications

References 11 publications

Analysis of the Formation Mechanism of Hydrogen Sulfide in the 13# Coal Seam of Shaping Coal Mine

Analysis of the Formation Mechanism of Hydrogen Sulfide in the 13# Coal Seam of Shaping Coal Mine

Multivariate thermochemical sulphate reduction (TSR) low temperature origin for H2S production: A Fars Provinance gas field

Reservoir gas isotope fingerprinting and mechanism for increased H2S: An example from Middle East Shanul gas field

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The genesis of H2S associated with heavy oils in Hendijan and Bahregansar oilfields, Sarvak reservoir

Cited by 6 publications

References 11 publications

Analysis of the Formation Mechanism of Hydrogen Sulfide in the 13# Coal Seam of Shaping Coal Mine

Analysis of the Formation Mechanism of Hydrogen Sulfide in the 13# Coal Seam of Shaping Coal Mine

Multivariate thermochemical sulphate reduction (TSR) low temperature origin for H2S production: A Fars Provinance gas field

Reservoir gas isotope fingerprinting and mechanism for increased H2S: An example from Middle East Shanul gas field

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The genesis of H₂S associated with heavy oils in Hendijan and Bahregansar oilfields, Sarvak reservoir