准噶尔盆地春光探区油气微生物指示

doi:10.7623/syxb201707007

石油学报 ›› 2017, Vol. 38 ›› Issue (7): 804-812.DOI: 10.7623/syxb201707007

准噶尔盆地春光探区油气微生物指示

杨帆^1,2, 沈忠民¹, 汤玉平², 许科伟², 顾磊², 高俊阳²

1. 成都理工大学油气藏地质及开发工程国家重点实验室四川成都 610059;
2. 中国石油化工股份有限公司石油勘探开发研究院无锡石油地质研究所江苏无锡 214126

收稿日期:2016-09-12 修回日期:2017-04-27 出版日期:2017-07-25 发布日期:2017-08-10
通讯作者: 沈忠民,男,1954年10月生,1976年获桂林冶金地质学院学士学位,1994年获南京大学地球科学系博士学位,现为成都理工大学能源学院教授、博士生导师,主要从事油气成藏与储层地质学研究。Email:szm313@cdut.edu.cn
作者简介:杨帆,男,1983年1月生,2006年获中国地质大学(北京)学士学位,2009年获中国地质大学(北京)硕士学位,现为中国石油化工股份有限公司石油勘探开发研究院无锡石油地质研究所副主任师、工程师,主要从事油气地球化学勘探及油气微生物勘探研究。Email:yangfan_56@163.com
基金资助:
国家自然科学基金项目（No.41202241）资助。

Hydrocarbon microbial prospecting in Chunguang exploration area,Junggar Basin

Yang Fan^1,2, Shen Zhongmin¹, Tang Yuping², Xu Kewei², Gu Lei², Gao Junyang²

1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Sichuan Chengdu 610059, China;
2. Wuxi Research Institute of Petroleum Geology, Sinopec Petroleum Exploration and Production Research Institute, Jiangsu Wuxi 214126, China

Received:2016-09-12 Revised:2017-04-27 Online:2017-07-25 Published:2017-08-10

摘要/Abstract

摘要：

油气微生物勘探具有有效、直接、经济的技术特点，日益受到全球油气勘探界的重视。以准噶尔盆地春光探区为研究对象，在探区北部横穿稀油区（T23井沙湾组）和稠油区（T10井-T17井白垩系）部署了一条微生物地球化学勘查剖面，分别采集微生物勘探样品和化探样品120件。同时在探区西南部油藏上方部署一块采样区，采集微生物勘探样品243件。采用平板菌落法培养分析样品中油气指示微生物的数量，结合油藏和钻井信息研究微生物异常分布特征。结果显示，剖面上油气微生物数量与酸解烃含量的分布与下伏油藏及背景区有很高的吻合度，两者在油藏上方呈顶端异常模式，剖面南北两端形成低值背景区。此外，结合石油地质及钻井信息探讨了油气微生物平面分布规律：平面上微生物异常分布集中，与油藏聚集体吻合度较高，在高产油流井T45-1井、T33井、T22井及T67井区形成了高值异常区，其中T67井微生物高值区钻井部署较少，需加大勘探力度。微生物异常与钻井对比显示，两者符合率达70%以上。春光探区油气微生物指示初探表明，微生物对油藏中轻烃组分的微渗漏具有有效指示性，与下伏油藏具有较高响应关系。在实际勘探中，微生物勘探结果应与石油地质、地震、钻井等资料相结合，为油气富集区预测、钻前评价和钻井部署提供有力依据和建议。

关键词: 春光探区, 微生物勘探, 甲烷氧化菌, 丁烷氧化菌, 酸解烃

Abstract:

Hydrocarbon microbial prospecting technique is effective, direct and economic, and thus has attracted more and more attention from global oil and gas exploration industry. Taking the Chunguang exploration area in Junggar Basin as a research target, a microbial geochemical profile was deployed in the north of the exploration area crossing light oil area (Well T23, Shawan Formation) and heavy oil area (Well T10-T17, Cretaceous reservoir), and 120 microbial prospecting samples and geochemical samples are collected respectively. Meanwhile, a sampling area was deployed in the southwestern exploration area, and 243 samples are collected for microbial prospecting. Microbial population of the sample with hydrocarbon indication was analyzed using the plate counter method. In combination with the reservoir and drilling information, the abnormal distribution characteristics of microbes were also analyzed. The results illustrate that the distribution of both hydrocarbon microbial population and acidolysis hydrocarbon content on the profile is highly consistent with that in the underlying reservoirs and background area. Both show the apical anomaly pattern at the top of reservoir, and obvious low-value background areas are formed on the north and south ends of the profile. Furthermore, the planar distribution laws of hydrocarbon microbes are discussed based on petroleum geology and drilling information. The planar anomalous distribution of microbes is intensive with a high consistency with reservoir aggregate, leading to the formation of high-value anomaly areas in the high-yield oil wells such as Well T45-1, T33, T22 and T67. Meanwhile, more efforts should be put in the exploration of Well T67 microbial high-value area due to the lack of drilling deployments. The comparison result displays that the consistency between microbial anomalies and drillings reaches more than 70%. The preliminary exploration of hydrocarbon microbial indicators in Chunguang exploration area proves that the microbes have effective indications to light hydrocarbon components with a high response to the underlying reservoirs. In practical explorations, the microbial prospecting results in combination with petroleum geology, seismic survey, drilling and other data can provide forceful foundations and recommendations for the prediction, pre-drilling evaluation and drilling deployment in the hydrocarbon-rich areas.

Key words: Chunguang exploration area, microbial prospecting, methane-oxidizing bacteria, butane-oxidizing bacteria, acidolysis hydrocarbon

中图分类号:

TE132

杨帆, 沈忠民, 汤玉平, 许科伟, 顾磊, 高俊阳. 准噶尔盆地春光探区油气微生物指示[J]. 石油学报, 2017, 38(7): 804-812.

Yang Fan, Shen Zhongmin, Tang Yuping, Xu Kewei, Gu Lei, Gao Junyang. Hydrocarbon microbial prospecting in Chunguang exploration area,Junggar Basin[J]. Acta Petrolei Sinica, 2017, 38(7): 804-812.

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准噶尔盆地春光探区油气微生物指示

Hydrocarbon microbial prospecting in Chunguang exploration area,Junggar Basin

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