Mechanism of Hydrogen Sulfide Generation During Tight Oil Development at Mahu

doi:10.11885/j.issn.1674-5086.2020.09.03.01

Abstract

Abstract: In the development of tight oil in the Triassic Baikouquan Formation of Mahu Oilfield, hydrogen sulfide has been detected in 62 percent of production wells. In order to find out the cause of the generation of hydrogen sulfide, qualitative evaluation and quantitative analysis experiments have been applied to investigate the hydrogen sulfide generation by bacterial sulfate reduction and acid-rock reaction individually at reservoir condition. The results show that sulfate-reducing bacteria cannot multiply and produce hydrogen sulfide at 50℃ or in presence of bactericide. 4.34×10^-6 mol hydrogen sulfide are produced by the reaction of the 50.0 g of core powder with 15% hydrochloric acid. The primary cause of hydrogen sulfide generation is the reaction of hydrochloric acid and the acid volatile sulfide in the reservoir. The research results provide an important technical support for preventing generation of hydrogen sulfide and for maintaining the safety production of Mahu tight oil.

Key words: Mahu Oilfield, tight oil, hydrogen sulfide, bacterial sulfate reduction, acid volatile sulfide

CLC Number:

TE39

SHI Guoxin, WANG Fengqing, CAO Qiang, LUO Qiang, TIAN Hui. Mechanism of Hydrogen Sulfide Generation During Tight Oil Development at Mahu[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2022, 44(4): 145-152.

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References

[1] 中华人民共和国国家卫生健康委员会.工作场所有害因素职业接触限值第1部分:化学有害因素:GBZ 2.1-2019[S].北京:中国标准出版社, 2019. National Health Commission of the People's Republic of China. Occupational exposure limits for hazardous agents in the workplace part I:Chemical hazardous agents GBZ 2.1-2019[S]. Beijing:Standards Press of China, 2019.
[2] 吕慧.孤岛油田热采油井硫化氢生成规律研究[D].青岛:中国石油大学, 2014. LÜ Hui. Study on the formation of hydrogen sulfide in seam injection well of Gudao Oilfield[D]. Qingdao:China University of Petroleum, 2014.
[3] 戴金星, 胡见义, 贾承造, 等.科学安全勘探开发高硫化氢天然气田的建议[J].石油勘探与开发, 2004, 31(2):1-4. doi:10.3321/j.issn:1000-0747.2004.02.001 DAI Jinxing, HU Jianyi, JIA Chengzao, et al. Suggestions for scientifically and safety exploring and developing high H₂S gas fields[J]. Petroleum Exploration and Development, 2004, 31(2):1-4. doi:10.3321/j.issn:1000-0747.2004.02.001
[4] 戴金星.中国含硫化氢的天然气分布特征、分类及其成因探讨[J].沉积学报, 1985, 3(4):109-120. DAI Jinxing. Distribution, classification and origin of natural gas with hydrogen sulphide in China[J]. Acta Sedimentologica Sinica, 1985, 3(4):109-120.
[5] 朱光有, 戴金星, 张水昌, 等.含硫化氢天然气的形成机制及分布规律研究[J].天然气地球科学, 2004, 15(2):166-170. doi:10.3969/j.issn.1672-1926.2004.02.014 ZHU Guangyou, DAI Jinxing, ZHANG Shuichang, et al. Generation mechanism and distribution characteristics of hydrogen sulfide bearing gas in China[J]. Natural Gas Geoscience, 2004, 15(2):166-170. doi:10.3969/j.issn.1672-1926.2004.02.014
[6] 薛景战.乌东井田瓦斯中硫化氢异常的BSR和TSR成因研究[D].北京:中国矿业大学, 2017. XUE Jingzhan. The bacterial sulfate reduction and thermochemical sulfate reduction reason research of abnormal hydrogen sulfide in coal mine gas of Wudong[D]. Beijing:China University of Mining & Technology, 2017.
[7] 林日亿, 宋多培, 周广响, 等.热采过程中硫化氢成因机制[J].石油学报, 2014, 35(6):1153-1159. doi:10.7623/syxb201406013 LIN Riyi, SONG Duopei, ZHOU Guangxiang, et al. Hydrogen sulfide formation mechanism in the process of thermal recovery[J]. Acta Petrolei Sinica, 2014, 35(6):1153-1159. doi:10.7623/syxb201406013
[8] 易绍金, 丁齐柱, 薛燕.快速测定硫酸盐还原菌菌量的培养——镜检法[J].江汉石油学院学报, 1992, 14(4):49-52. YI Shaojin, DING Qizhu, XUE Yan. Rapid quantitative determination of sulfate-reducing bacteria by cultivation-microscopy method[J]. Journal of Jianghan Petroleum Institute, 1992, 14(4):49-52.
[9] 黄毅, 杨俊印, 吴拓, 等.辽河油田稠油区块硫化氢分布特征及成因研究[J].天然气地球科学, 2008, 19(2):255-260. HUANG Yi, YANG Junyin, WU Tuo, et al. Distribution and origin of hydrogen sulphide in heavy oil block, Liaohe Oil-Field[J]. Natural Gas Geoscience, 2008, 19(2):255-260.
[10] MACHEL H G. Bacterial and thermochemical sulfate reduction in diagenetic settings-old and new insights[J]. Sedimentary Geology, 2001, 140(1-2):143-175. doi:10.1016/s0037-0738(00)00176-7
[11] 陈启林, 张小军, 黄成刚, 等.柴达木盆地英西地区渐新统硫酸盐硫同位素组成及其地质意义[J].地质论评, 2019, 65(3):558-572. doi:10.16509/j.georeview.2019.03.004 CHEN Qilin, ZHANG Xiaojun, HUANG Chenggang, et al. Sulfur isotopic composition of sulphate in oligocene series in Yingxi Area, Qaidam Basin, and its geological significance[J]. Geological Review, 2019, 65(3):558-572. doi:10.16509/j.georeview.2019.03.004
[12] 田继先, 赵健, 张静, 等.柴达木盆地英雄岭地区硫化氢形成机理及分布预测[J].岩性油气藏, 2020, 32(5):84-92. doi:10.12108/yxyqc.20200509 TIAN Jixian, ZHAO Jian, ZHANG Jing, et al. Formation mechanism and distribution prediction of hydrogen sulfide in Yingxiongling Area, Qaidam Basin[J]. Lighologic Reservoirs, 2020, 32(5):84-92. doi:10.12108/yxyqc.20200509
[13] 谢增业, 李志生, 王春怡, 等.硫化氢生成模拟实验研究[J].石油实验地质, 2008, 30(2):192-195. doi:10.11781/sysydz200802192 XIE Zengye, LI Zhisheng, WANG Chunyi, et al. Study on generation of hydrogen sulfide by simulation experiment[J]. Petroleum Geology & Experiment, 2008, 30(2):192-195. doi:10.11781/sysydz200802192
[14] 张永成, 王洪辉, 李应祥, 等.青海油田三厂硫化氢形成机理及腐蚀性研究[J].西南石油大学(自然科学版), 2011, 33(1):151-155. doi:10.3863/j.issn.1674-5086.2011.01.028 ZHANG Yongcheng, WANG Honghui, LI Yingxiang, et al. Generation mechanism and corrosion for hydrogen sulfide in oil well of 3rd oil plant in Qinghai Oilfield[J]. Journal of Southwest Petroleum University (Science and Technology Edition), 2011, 33(1):151-155. doi:10.3863/j.issn.1674-5086.2011.01.028
[15] 庄文, 初立业, 邵宏波.油田硫酸盐还原菌酸化腐蚀机制及防治研究进展[J].生态学报, 2011, 31(2):575-582. ZHUANG Wen, CHU Liye, SHAO Hongbo. Acid corrosion mechanism of the sulfate-reducing bacteria and protecting studies in oilfield[J]. Acta Ecologica Sinica, 2011, 31(2):575-582.
[16] 徐程, 杨斌, 朱雪菁, 等.大风江口海域沉积物酸可挥发性硫化物、重金属分布及风险评价[J].环境科学研究, 2020, 33(6):1530-1538. doi:10.13198/j.issn.1001-6929.2019.10.06 XU Cheng, YANG Bin, ZHU Xuejing, et al. Distribution of acid volatile sulfide and heavy metals in sediments of the Dafengjiang River estuary and risk assessment of heavy metals[J]. Research of Environmental Sciences, 2020, 33(6):1530-1538. doi:10.13198/j.issn.1001-6929.2019.10.06
[17] 蔡晔, 林休休.连续流动法测定沉积物中的酸挥发性硫化物[J].环境科技, 2015, 28(3):56-59. doi:10.3969/j.issn.1674-4829.2015.03.013 CAI Ye, LIN Xiuxiu. Continuous flow method for the determination of acid volatile sulfide in sediments[J]. Environmental Science and Technology, 2015, 28(3):56-59. doi:10.3969/j.issn.1674-4829.2015.03.013
[18] 刘景春, 严重玲, 胡俊.水体沉积物中酸挥发性硫化物(AVS)研究进展[J].生态学报, 2004, 24(4):812-818. doi:10.3321/j.issn:1000-0933.2004.04.024 LIU Jingchun, YAN Zhongling, HU Jun. A review on the studies of acid-volatile sulfide in aquatic sediments[J]. Acta Ecologica Sinica, 2004, 24(4):812-818. doi:10.3321/j.issn:1000-0933.2004.04.024
[19] 邓燕, 薛仁江, 郭建春.低渗透储层酸预处理降低破裂压力机理[J].西南石油大学(自然科学版), 2011, 33(3):125-129. doi:10.3863/j.issn.1674-5086.2011.03.021 DENG Yan, XUE Renjiang, GUO Jianchun. The mechanism of high-pressure high-temperature and low permeability acid pretreatment to reduce fracturing pressure[J]. Journal of Southwest Petroleum University (Science and Technology Edition), 2011, 33(3):125-129. doi:10.3863/j.issn.1674-5086.2011.03.021
[20] RICHARD D T, LUTHER G W. Kinetics of pyrite formation by the H₂S oxidation of iron (II) monosulfide in aqueous solutions between 25 and 125℃:The mechanism[J]. Geochimica et Cosmochimica Acta, 1997, 61(1):135-147. doi:10.1016/S0016-7037(96)00322-5
[21] 蒲晓强.中国边缘海典型海域沉积物早期成岩过程中硫的循环[D].青岛:中国科学院海洋研究所, 2005. PU Xiaoqiang. Sulfur cycle in sediments of the Chinese marginal seas during early diagenesis[D]. Qingdao:Institute of Oceanology, Chinese Academy of Sciences, 2005.
[22] 赵雷昭.新疆吉木萨尔凹陷二叠系芦草沟组黄铁矿成因与形成环境探讨[D].西安:西北大学, 2018. ZHAO Leizhao. The study on the genesis and forming environment of pyrite in Lucaogou Formation in Jimusal Sag, Permian, Xinjiang[D]. Xi'an:Northwest University, 2018.
[23] 许同, 刘洛夫, 汪洋, 等.乌尔禾-风南地区百口泉组碎屑岩储层成岩作用及孔隙演化[J].东北石油大学学报, 2018, 42(4):26-39. doi:10.3969/j.issn.2095-4107.2018.04.003 XU Tong, LIU Luofu, WANG Yang, et al. Diagenesis and porosity evolution of clastic reservoir of Baikouquan Formation in Wuerhe-Fengnan Area[J]. Journal of Northeast Petroleum University, 2018, 42(4):26-39. doi:10.3969/j.issn.2095-4107.2018.04.003