[1]孙藏军,李永春,姜春宇,等.石臼坨凸起Q31区块馆陶组气测异常原因分析[J].复杂油气藏,2022,15(01):40-43.[doi:10.16181/j.cnki.fzyqc.2022.01.008]
 SUN Cangjun,LI Yongchun,JIANG Chunyu,et al.Analysis of abnormal gas measurement in Guantao Formation in Block Q31of Shijiutuo Uplift[J].Complex Hydrocarbon Reservoirs,2022,15(01):40-43.[doi:10.16181/j.cnki.fzyqc.2022.01.008]
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石臼坨凸起Q31区块馆陶组气测异常原因分析()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
15卷
期数:
2022年01期
页码:
40-43
栏目:
油气勘探
出版日期:
2022-03-25

文章信息/Info

Title:
Analysis of abnormal gas measurement in Guantao Formation in Block Q31of Shijiutuo Uplift
作者:
孙藏军1李永春1姜春宇2石 飞1周立业1
1.中海石油(中国)有限公司天津分公司,天津 300452;2.中海油能源发展股份有限公司工程技术分公司,天津 300452
Author(s):
SUN Cangjun1LI Yongchun1JIANG Chunyu2SHI Fei1ZHOU Liye1
1. Tianjin Branch of CNOOC Ltd.,Tianjin 300452,China;2.Cnooc EnerTech-Drilling & Production Co.,Tianjin 300452,China
关键词:
气测异常地质成因重质油伴生甲烷气馆陶组石臼坨凸起
Keywords:
abnormal gas measurementgeological originheavy oilassociated methane gasGuantao FormationShijiutuo Uplift
分类号:
TE132
DOI:
10.16181/j.cnki.fzyqc.2022.01.008
文献标志码:
A
摘要:
针对石臼坨凸起西南缘Q31区块馆陶组油藏录井气测仅见高含量的C1烃组分,不含其他烃组分的特殊地质现象,利用常规原油物性、族组分及生物标志化合物等地球化学资料,探讨研究区馆陶组油藏的基本地化特征、原油菌解过程及甲烷气的生成机理。结果表明,研究区馆陶组重质油为成熟油,在成藏后遭受生物降解作用导致稠化,并且在稠化过程中,原油降解气以油藏伴生甲烷气(溶解气)的形式产出,当钻头钻开储集层时,地层能量快速释放而造成录井气测仅见高含量的C1烃组分的现象。研究认识对于油藏开发方案制订具有一定指导意义。
Abstract:
In light of the special geological phenomenon of high C1 hydrocarbon content but no other hydrocarbon components in the gas logging of the Guantao Formation reservoir in the Q31 Block on the southwestern margin of the Shijiutuo Uplift,the basic characteristics,the process of crude oil biolysis,and the mechanism of methane gas generation were discussed using geochemical data such as conventional crude oil physical properties,family components,and biomarker compounds. The results show that the heavy oil of the Guantao Formation in the study area is mature oil that thickened after accumulation due to biodegradation and crude oil degradation gas was produced in the form of methane gas (dissolved gas) associated with the reservoir during the thickening process. When the drill bit drilled into the reservoir,the formation energy was immediately released,resulting in the logging gas measurement containing only high levels of C1 hydrocarbon components. This knowledge of the study has a certain guiding significance for the formulation of a reservoir development plan.

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备注/Memo

备注/Memo:
收稿日期:2021-08-09;改回日期:2021-11-08。
第一作者简介:孙藏军(1988—),硕士,工程师,主要从事海上油气田开发地质研究工作。E-mail:suncj2@cnooc.com.cn。
基金项目:国家科技重大专项 “渤海海域勘探新领域及关键技术研究”(2016ZX05024-003);中海石油(中国)有限公司重点项目“渤海中深层复杂油气藏高效开发技术”(CNOOC-KJ135 ZDXM36 TJ03TJ)。
更新日期/Last Update: 1900-01-01