| 基于三线性流模型的致密/页岩油藏水平井统一压裂设计研究 |
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| 引用本文： | 方立勤,梁秀丽,杨承伟,郑自刚,王秀坤,盛家平,乐平. 基于三线性流模型的致密/页岩油藏水平井统一压裂设计研究[J]. 非常规油气, 2021, 8(2): 120-126 |
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| 作者姓名： | 方立勤 梁秀丽 杨承伟 郑自刚 王秀坤 盛家平 乐平 |
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| 作者单位： | 中国石油大学(北京)非常规油气科学技术研究院,北京102249;中石油大庆油田分公司勘探开发研究院,黑龙江大庆163000;中石油长庆油田分公司勘探开发研究院,西安710018;中国石油大学(北京)非常规油气科学技术研究院,北京102249;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 |
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| 基金项目： | 北京市自然科学基金青年科学基金项目“致密油藏复杂孔缝系统内油水交换机制的多尺度模拟研究”(2214077);国家自然科学基金面上项目“页岩油藏空气氧化热破裂机制研究”(51974334);国家重大科技专项“长庆特/超低渗油藏CO2驱油与埋存关键技术研究”(2016ZX05016-003)。 |
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| 摘 要： | 为了优化设计致密/页岩油藏水力裂缝参数,针对传统拟稳态设计方法的局限性,开展统一压裂设计与三线性流模型的结合,得到水力裂缝参数与全流态产能的对应关系.以长庆油田长-7段一口压裂水平井为例,研究得到其最优的裂缝半长为150 m,对应的无因次导流能力为1.84,单缝10年最大累产量为4 015 t.进一步分析可知,给定支撑...
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| 关 键 词： | 致密/页岩油 压裂水平井 统一压裂设计 三线性流 |
Study on unified fracturing design of horizontal well in tight/shale reservoirbased on trilinear flow model |
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| FANG Liqin,LIANG Xiuli,YANG Chengwei,ZHENG Zigang,WANG Xiukun,SHENG Jiaping,YUE Ping. Study on unified fracturing design of horizontal well in tight/shale reservoirbased on trilinear flow model[J]. Unconventional Oil & Gas, 2021, 8(2): 120-126 |
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| Authors: | FANG Liqin LIANG Xiuli YANG Chengwei ZHENG Zigang WANG Xiukun SHENG Jiaping YUE Ping |
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| Affiliation: | (The Conventional Oil and Gas Institute,China University of Petroleum(BeiJing),Beijing 102249,China;Exploration and Development Research Institute of Daqing Oilfield,Heilongjiang Daqing 163000,China;Exploration and Development Research Institute of Changqing Oilfiled,Xi’an 710018,China;SKL of Oil&Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu 610500,China) |
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| Abstract: | In order to optimize the design of hydraulic fracture parameters in tight/shale reservoirs,in view of the limitations of traditional pseudo-steady-state design methods,the unified facture design and the trilinear flow model are combined to obtain the corresponding relationship between hydraulic fracture parameters and full flow state productivity.Taking a fractured horizontal well in the Chang-7 section of Changqing Oilfield as an example,the research shows that the optimal fracture half-length is 150 m,the corresponding dimensionless conductivity is 1.84,and the ten years maximum cumulative production of a single fracture is 4015 t.Further analysis shows that when the given proppant dose is constant,when the reservoir permeability is low(such as 0.001 mD),the dimensionless conductivity is larger(>10),and the productivity increases with the increase of the half fracture length,more suitable for creating long fracture.The research results have certain guiding significance for the optimal design of tight/shale reservoir fracturing. |
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| Keywords: | tight/shale oil reservoirs fractured horizontal well unified fracturing design trilinear flow model |
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