西南石油大学学报(自然科学版) ›› 2022, Vol. 44 ›› Issue (4): 145-152.DOI: 10.11885/j.issn.1674-5086.2020.09.03.01

• 石油与天然气工程 • 上一篇    下一篇

玛湖致密油开发硫化氢产生原因

石国新1,2, 王凤清1,2, 曹强1,2, 罗强1,2, 田辉3   

  1. 1. 中国石油新疆油田公司实验检测研究院, 新疆 克拉玛依 834000;
    2. 中国石油新疆油田公司 西南石油大学提高采收率工程联合实验室, 新疆 克拉玛依 834000;
    3. 中国石油新疆油田公司百口泉采油厂, 新疆 克拉玛依 834000
  • 收稿日期:2020-09-03 发布日期:2022-07-28
  • 通讯作者: 石国新,E-mail:shigx@petrochina.com.cn
  • 作者简介:石国新,1968年生,男,汉族,新疆乌鲁木齐人,高级工程师,博士,主要从事油气田开发方面的研究。E-mail:shigx@petrochina.com.cn
    王凤清,1969年生,女,汉族,黑龙江绥化人,工程师,主要从事提高采收率方面的技术研究。E-mail:wfqing@petrochina.com.cn
    曹强,1962年生,男,汉族,新疆克拉玛依人,工程师,主要从事提高采收率方面的技术研究。E-mail:cq@petrochina.com.cn
    罗强,1972年生,男,汉族,四川仁寿人,高级工程师,博士,主要从事提高采收率方面的技术研究。E-mail:luoq33@petrochina.com.cn
    田辉,1990年生,男,回族,新疆伊宁人,工程师,主要从事油气田开发方面的研究。E-mail:thxj@petrochina.com.cn
  • 基金资助:
    中国石油重大科技专项(2017E-0415)

Mechanism of Hydrogen Sulfide Generation During Tight Oil Development at Mahu

SHI Guoxin1,2, WANG Fengqing1,2, CAO Qiang1,2, LUO Qiang1,2, TIAN Hui3   

  1. 1. Research Institute of Experiment and Detection, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China;
    2. Xinjiang Oilfield-Southwest Petroleum University Joint Laboratory of EOR, Karamay, Xinjiang 834000, China;
    3. Baikouquan Plant, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China
  • Received:2020-09-03 Published:2022-07-28

摘要: 玛湖油田三叠系百口泉组油藏致密油开发过程中,62%的油井产硫化氢。为明确硫化氢产生原因,分别采用硫化氢定性评价和定量测定方法开展了微生物硫酸盐还原和酸岩反应生成硫化氢的研究。实验结果表明,在50℃或含杀菌剂条件下,硫酸盐还原菌不生长也不产生硫化氢;玛湖百口泉组油藏50.0 g岩芯粉与15%的盐酸完全反应可生成4.34×10-6 mol硫化氢。因此,储层矿物中酸挥发性硫化物与盐酸反应是玛湖油田百口泉组油藏致密油开发过程中硫化氢产生的根本原因。该研究结果为预防硫化氢产生和保障玛湖安全生产提供了重要技术支撑。

关键词: 玛湖油田, 致密油, 硫化氢, 微生物硫酸盐还原, 酸挥发性硫化物

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

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