新疆LQ井区砂岩油藏廉价营养体系筛选与评价
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1.中国石油新疆油田分公司实验检测研究院;2.中国石油新疆油田分公司陆梁油田作业区;3.南开大学生命科学学院

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Screening and evaluation of cheap nutrient system for sandstone reservoir in well block LQ, Xinjiang
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Nan Kai university

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    摘要:

    本文针对LQ井区砂岩油藏主要采油功能菌的营养需求,通过单因素实验筛选出最佳碳源、氮源、磷源,并初步确定各组分浓度,以此为基础再通过Plackett-Burman实验和去因子实验分析各组分的显著性影响因素,确定各组分的浓度,最后通过响应面实验,根据响应因素对各组分进一步优化,得出最终的浓度。筛选出的营养体系配方乳化效果较好,激活主要采油功能基因烃氧化基因达到107copies/mL,物模驱油实验提高采收率11.65%,本研究为LQ井区微生物驱现场试验提供了很好的技术支撑。

    Abstract:

    According to the nutritional requirements of the main oil recovery functional bacteria in the sandstone reservoir of LQ well block, the optimal carbon source, nitrogen source and phosphorus source were selected through single factor experiment, and the concentration of each component was preliminarily determined, on this basis, the significant influence factors of each component were analyzed by Plackett-Burman experiment and factor removal experiment, and the concentration of each component was determined, finally, response surface test was used to determine the concentration of each component, the final concentration was obtained by further optimizing each component according to the factors. The results showed that the selected nutrient system had good emulsifying effect, the main oil recovery function gene hydrocarbon oxidation gene reached 107copies/ml, and the physical model oil displacement experiment improves oil recovered by 11.65%. This study provides a good technical support for the field test of microbial flooding in well block LQ.

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历史
  • 收稿日期: 2020-10-20
  • 最后修改日期: 2021-02-22
  • 录用日期: 2021-03-18
  • 在线发布日期: 2023-06-02
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