| 延113—延133井区水平井钻遇地层特征及地质导向 |
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| 引用本文： | 阚洪阁,薛杰,罗腾跃,张昆,杜奎甫,朱明,俞天军,陈刚. 延113—延133井区水平井钻遇地层特征及地质导向[J]. 非常规油气, 2022, 9(1): 57-64. DOI: 10.19901/j.fcgyq.2022.01.07 |
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| 作者姓名： | 阚洪阁 薛杰 罗腾跃 张昆 杜奎甫 朱明 俞天军 陈刚 |
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| 作者单位： | 斯伦贝谢长和油田工程有限公司,西安710016,陕西延长石油(集团)有限责任公司研究院,西安710075,西南石油大学地球科学与技术学院,成都610500;西南石油大学油气藏地质及开发工程国家重点实验室,成都610500;中国地质大学(武汉)构造与油气资源教育部重点实验室,武汉430074,斯伦贝谢中国公司,北京100015,延长石油集团油气勘探公司,陕西延安716000 |
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| 基金项目： | 构造与油气资源教育部重点实验室基金项目“海相页岩石墨化成因机理及对含气性影响”(TPR-2020-07)。 |
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| 摘 要： | 延113—延133井区山23储层以水平井开发为主,局部的构造隆起、厚度和倾角的变化都会造成水平井钻出储层。根据岩心和成像测井等数据,系统研究了山23砂体上覆、下伏和层间地层发育特征并依据地质认识指导水平井导向。研究表明:砂体上覆地层一般发育水下天然堤砂泥岩薄互层沉积,当钻遇该类地层应及时降斜;下伏太原组泥岩有机质含量较高,呈现出高中子、高电阻率和低密度的特征,当钻遇地层岩性突变,泥岩电阻率200～300Ω·m,应及时增斜;层间发育少量泥质夹层和高伽马砂岩夹层,地质导向时可以微调或不调整,继续稳斜钻进。该研究成果对鄂尔多斯盆地山23储层水平井钻井有指导意义。
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| 关 键 词： | 鄂尔多斯盆地 山23水平井 地质导向 成像测井 薄互层 高伽马砂岩 |
Horizontal drilling formation characteristics and geosteering in Yan113-Yan133 well block |
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| KAN Hongge,XUE Jie,LUO Tengyue,ZHANG Kun,DU Kuifu,ZHU Ming,YU Tianjun,CHEN Gang. Horizontal drilling formation characteristics and geosteering in Yan113-Yan133 well block[J]. Unconventional Oil & Gas, 2022, 9(1): 57-64. DOI: 10.19901/j.fcgyq.2022.01.07 |
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| Authors: | KAN Hongge XUE Jie LUO Tengyue ZHANG Kun DU Kuifu ZHU Ming YU Tianjun CHEN Gang |
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| Affiliation: | (SCP Oilfield Services, Xi’an 710016, China;Yanchang Petroleum Group Research Institute, Xi’an 710075, China;School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, China;State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China;Key Laboratory of Tectonics and Petroleum Resources, Ministry of Education, China University of Geosciences, Wuhan 430074, China;Schlumberger China, Beijing 100015, China;Yanchang Petroleum Group Exploration Company, Shaanxi Yan’an 716000, China) |
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| Abstract: | Permian Shan23 reservoir in Yan113-Yan133 well block is mainly developed by horizontal wells.Regional uplift,thickness and dip changes will cause wells to drill out of Shan23 reservoir.Based on core data and imaging logs this paper systematically studied the overlying,underlying and interbedded formation characteristics and guided horizontal wells geosteering by geological understanding.The results illustrated the overlying formation of Shan23 sandbody develops thin interbedded sand and mudstone of underwater levee deposits and should build off in time.The underlying shale of Taiyuan Formation contains higher organic matter and shows high neutron,resistivity and low density in logs.Lithological mutation and 200~300Ω·m resistivity illustrate underlying formation and should build up timely.Shale interbeds and high gamma sandstone strips are developed which can fine tune or continue steady drilling.The research results have guiding significance for Shan23 horizontal well drilling in Ordos Basin. |
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| Keywords: | Ordos Basin Shan23 horizontal wells geosteering imaging logs thin Interbed high Gamma sandstone |
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