大容量存储器在井下存储式核密度计中的应用

为解决原油开采前需测得井下油层密度分布的问题，利用将放射源、闪烁晶体探测器、放大电路、数据存储电路、高压电源、锂电池组装成一体，放入不锈钢管中，可构成井下存储式核密度计。该密度计可在井下长期记录油层密度的变化曲线。重点介绍核密度的设计原理的同时充分分析了单片机（A189-2051）与存储器（E^2PROM）进行数据传输的电路设计与软件的编程方法。依此方法，单片机应用系统的片外数据存储器扩展到很大容量，设计方法简单，易于控制，硬件工作稳定。

Application of Mass Storage to Storing Type Nuclear Densimeter Used in Well

To resolve the problem of crude oil exploiting needing now and then being able to do measure the distribution of oil reservoir density,form the radiate source,the scintillation detector,the expanded circuit,the circuit to store the data,high tension supply and lithium battery assembled into the whole part,and then put the whole part together into the pipe of the stainless steel to form the storing type densimeter used in the well.The densimeter can make the long-term record of underground reservoir density curve.Mainly introduces the nuclear densimeter principle and meanwhile fully analyses the electrical circuit design that the one-chip computer(AT89c2051) and memory(E2PROM) carry on data transmission and the programme method of the software.Accordingly,the data storage unit of the application system of microcontroller chip can be expanded to large capacity,design method is simple and easy to control,and the hardware stability work.