特种油气藏 ›› 2020, Vol. 27 ›› Issue (5): 53-60.DOI: 10.3969/j.issn.1006-6535.2020.05.008

• 地质勘探 • 上一篇    下一篇

微生物地球化学勘探技术在黄土塬地貌区油气勘探中的应用

曹军1, 周进松1, 银晓1, 李园园1, 刘鹏1, 丁力2, 梁永兴2   

  1. 1.陕西延长石油(集团)有限责任公司,陕西 西安 710075;
    2.盎亿泰地质微生物技术(北京)有限公司,北京 102200
  • 收稿日期:2020-01-06 修回日期:2020-08-02 出版日期:2020-10-25 发布日期:2022-02-18
  • 作者简介:曹军(1983—),男,高级工程师,2006年毕业于成都理工大学材料科学与工程专业,2014年毕业于中国石油大学(北京)地质学专业,获博士学位,现主要从事油气地球化学研究和天然气勘探工作。
  • 基金资助:
    陕西省重点科技创新团队计划项目“延长石油天然气勘探开发创新团队”(2015KCT-17);陕西延长石油(集团)有限责任公司项目“延长外围新区微生物地球化学勘探研究及应用”(ycsy2018ky-A-12)

Application of Microbial Geochemical Exploration Technology in Oil and Gas Exploration in Loess Tableland Regions

Cao Jun1, Zhou Jinsong1, Yin Xiao1, Li Yuanyuan1, Liu Peng1, Ding Li2, Liang Yongxing2   

  1. 1. Shaanxi Yanchang Oil (Group) Co., Ltd., Xi'an, Shaanxi 710075,China;
    2. AE&E Geomicrobial Technologies, Inc., Beijing 102200, China
  • Received:2020-01-06 Revised:2020-08-02 Online:2020-10-25 Published:2022-02-18

摘要: 鄂尔多斯盆地延长探区富县北部地处黄土塬地貌区,天然气勘探程度较低。针对黄土塬地貌区地震响应微弱、适用性差、流体检测难度大的问题,采用微生物地球化学勘探技术,结合油气钻探和地质资料展开综合研究。结果表明:黄土塬地貌区检测到显著的微生物异常;微生物及地球化学成果指示延长探区具有油气并存的特点;研究区可划分为9个微生物异常区和3个有利区带,其中,中部有利区指示含气前景好,西北部有利区含气性较好,东南部有利区可能与天然气富集有关。综合研究表明,微生物地球化学勘探技术在黄土塬地貌区的含油气性评价方面具有一定的适用性,研究成果可为黄土塬地貌区油气有利区带筛选提供参考依据。

关键词: 微生物烃检测, 地球化学, 含气性评价, 延长探区, 黄土塬地貌区

Abstract: The northern part of Fuxian County in Yanchang exploration area of the Ordos Basin is located in loess tableland region, and the degree of natural gas exploration is relatively low. Aiming at the problems of weak seismic response, poor applicability and difficult fluid detection in loess tableland region, a comprehensive study was carried out by using microbial geochemical exploration technology combined with oil and gas drilling and geological data. The study results show that: (1) significant microbial anomalies have been detected in the loess tableland region. (2) microbial and geochemical results indicate that the Yanchang exploration area has the characteristics of coexistence of oil and gas. (3) the study area can be divided into 9 microbial abnormal zones and 3 favorable zones. In which, the middle favorable zone indicates a good gas-bearing prospect, the northwest favorable zone has a better gas-bearing property, and the southeast favorable zone may be related to natural gas enrichment. Comprehensive research shows that microbial geochemical exploration technology has certain applicability in the evaluation of hydrocarbon-bearing properties in loess tableland regions. The research results can provide reference for screening favorable oil and gas zones in loess tableland regions.

Key words: microbial hydrocarbon detection, geochemistry, gas-bearing evaluation, Yanchang exploration area, loess tableland region

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