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小直径石油测井中子发生器研制
Development of Small Neutron Generator for Well Logging
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摘要: 为满足国内油田石油测井的迫切需要,对小直径测井中子发生器进行了研发。该发生器离子源采用微型化冷阴极Penning离子源,离子光学采用结构简单的单极加速系统。经实验室测试和用户现场刻度及测井表明,研制的中子发生器具有耐高温、产额高、稳定性好等特点,是目前国内研制的最小直径的工业测井中子发生器。所测数据与其它测井方法相比较,地质资料符合性好,满足了用户测井要求,现已用于油田生产测井。Abstract: A small neutron generator has been developed for meeting the need of well logging in oil fields.The miniature cold cathode Penning ion source and single electrode ion optics system are used in neutron generator.The good performance of the generator has been proved in the laboratory test and well logging in oil field.The generator has good characteristics,such as small diameter,high temperature resistant,high neutron output and good stability.At present,the neutron generator is the smallest logging generator in China,which has been used in oil field generally for conforming the geological data.
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