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用示踪砂^(192)Ir定量评价水力压裂裂缝宽度

Using Tracer-sand ^(192)Ir on the Quantitative Evaluation of Fracture Width in Hydraulic Fracturing
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摘要 针对目前油田水力压裂产生人工裂缝的重要参数缝宽,利用示踪砂^(192)Ir对压裂裂缝宽度进行定量化实验研究。首先建立模拟裂缝模型进行理论推导与计算,得到裂缝宽度与^(192)Ir射线强度的线性关系。在此基础上,制备用于示踪实验的示踪砂^(192)Ir,并将示踪砂混入填满支撑砂的模拟裂缝中。在裂缝宽度实验装置中,使用测井仪进行检测,得到裂缝宽度与^(192)Ir射线强度的实验关系曲线;最后通过现场实验验证了使用示踪砂评价水力压裂裂缝宽度结果的准确性。 The fracture width, which is an important parameter of hydraulic artificial fractures in oil fields, can be quantified by the tracer-sand 192Ir. First, through the deduction and calculation based on the simulated fracture model, the linear relationship between the fracture width and the 192Ir ray intensity can be obtained. The tracer-sand 192Ir for tracer experiment is prepared, and then add the tracer-sand into the simulated fracture filled with the supporting sand, and log in the laboratory fracture width apparatus, the experimental relationship curve between fracture width and 192Ir ray intensity is obtained. Finally, field experiments prove that the use of tracer-sand to evaluate the width of hydraulic fracturing is accurate.
作者 王路伟 高翔 崔海平 WANG Luwei;GAO Xiang;CUI Haiping(China Institute of Atomic Energy,Beijing102413,China;High Tech Atom CO.LTD.,Beijing102413,China)
出处 《同位素》 CAS 2019年第2期108-114,共7页 Journal of Isotopes
关键词 放射性示踪 裂缝宽度定量评价 压裂裂缝 radioactive tracer quantitative evaluation of fracture width fractureing
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