杨会东,王凤启,蔡东梅,付宪弟,王剑,刘朋坤,姜琦,徐立恒
YANG Huidong,WANG Fengqi,CAI Dongmei,FU Xiandi,WANG Jian,LIU Pengkun,JIANG Qi,XU Liheng

• 1:中国石油大庆油田有限责任公司勘探开发研究院
• 2:中国石油大庆油田有限责任公司勘探事业部

摘要(Abstract)：

针对大庆长垣油田萨零组储层水敏强、含油性差、厚度薄，以及河道窄小等问题，以长垣油田杏北开发区杏3区块为例，结合测井资料、室内实验及取心井综合解释资料，通过两步法协同敏感属性分析，判别与含油性及水敏强弱关联性最高的属性参数，然后结合属性参数范围，利用基于波形特征指示的井震联合反演技术，精准预测萨零组弱水敏高含油优质储层，从而指导井位部署。结果表明：声波时差与电阻率组合能够划分油层、差油层和非储层，自然伽马可以判别水敏强弱；利用反演预测结果部署1口新井，岩心分析数据表明该井水敏指数为0.62，为中等偏强水敏，含油级别以油浸和含油为主，含油饱和度平均为61.4%，反演结果精准可靠；该新井投产1 a，平均日产油3.5 t，累计年产油1 090.6 t，投产效果较好。研究成果为萨零组开发奠定基础，对大庆油田的高质量稳产意义重大。
In view of the problems of high water sensitivity, poor oil-bearing property, small thickness and narrow channels of reservoirs in S0 member of Daqing Placanticline oilfield, Xing3 block in Xingbei development zone of Placanticline oilfield is taken as an example to determine attribute parameters with the most correlation with oilbearing property and water sensitivity through 2-step collaborative analysis of sensitivity attribute by using data of well logging, laboratory experiment and comprehensive interpretation of coring well. Then, combined with attribute parameters range, well-seismic joint inversion technique based on waveform characteristics indication is used to accurately predict high-quality reservoirs with high oil-bearing property and weak water-sensitivity in S0 member, guiding well deployment. The results show that combination of acoustic and resistivity logging can identify oil layer, poor oil layer and non-reservoir, while q_(API) can identify water sensitivity strength. A new well is drilled based on inversion prediction results, and its core analysis data shows water sensitivity index of 0.62, indicating moderately strong water sensitivity. Oil-bearing level is dominated by oil immersion and oil bearing, with average oil saturation of 61.4%. The inversion results are accurate and reliable. Meanwhile, production of this new well for 1 a gets average daily oil production of 3.5 t and cumulative oil production of 1 090.6 t, showing good production effect. The research lays a foundation for the development of S0 member and has great significance for high-quality production stabilizing in Daqing Oilfield.

关键词(KeyWords)： 波形反演;储层预测;敏感属性;水敏储层;大庆长垣
waveform inversion;reservoir prediction;sensitive attribute;water sensitive reservoir;Daqing Placanticline

Abstract:

Keywords:

基金项目(Foundation): 国家科技重大专项“井震结合油藏精细结构表征技术”（2011ZX05010-001）;; 中国石油天然气股份有限公司重大科技专项“大庆长垣特高含水油田提高采收率示范工程”（2016ZX05054）

作者(Author): 杨会东,王凤启,蔡东梅,付宪弟,王剑,刘朋坤,姜琦,徐立恒
YANG Huidong,WANG Fengqi,CAI Dongmei,FU Xiandi,WANG Jian,LIU Pengkun,JIANG Qi,XU Liheng

DOI: 10.19597/J.ISSN.1000-3754.202401056

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