基于CompactPCI架构的核测井地面数据获取系统设计与实现  

Design and Realization of a Nuclear Logging Data Acquisition System Based on Compact PCI Architecture

作　　者：阮福明[1] 朱耀强[1] 曹平[2] 宋克柱[2] 

机构地区：[1]中海油田服务股份有限公司物探研究院,北京110049 [2]核探测与核电子学国家重点实验室中国科学技术大学近代物理系,合肥230026

出　　处：《核电子学与探测技术》2013年第2期245-251,共7页Nuclear Electronics & Detection Technology

基　　金：国家高技术研究发展计划(863计划)资助项目(2006AA09A102-02)

摘　　要：介绍了一种基于Compact PCI架构的用于核测井的地面数据采集与记录系统。该系统将井下仪器上传数据进行数字化后交由FPGA硬件实现的数据解码算法进行数据恢复,结合高效的人机结合训练方法,本系统能够完成井下数据长距离的实时传输、处理和存储,最高数据率达到230 kbps,传输距离达到7 000 m。本系统结构简凑、架构合理,易于扩展、升级和使用,能够胜任不同规格的电缆和井的通信。该系统对于其它如垂直地震剖面测井、声波测井以及相关远距离、实时数据传输等应用有着重要的参考价值。A data acquisition system is introduced. It is designed based on Compact PCI architecture, and it is used as the data acquisition system on the Earth＇s surface for nuclear logging. In this system, signal transmitted from the down - hole devices is digitized and fed into a FPGA chip directly for data decoding. Combing with a high efficient training method based on human -computer cooperation, this system can accomplish functionalities of long distance transmission, data processing and storing in real - time. The total transmission data rate can achieve up to 230 kbps, and the transmission distance earl achieve up to 7 000 m. This system has advantages of simple structure, good expansibility and resilience for different cables or running environment. In addition to nuelear logging, this system is valuable for other related applications as vertical seismic profile logging, acoustic logging and long distance data transmission in realtime etc.

关 键 词：核测井 COMPACT PCI 现场可编程门阵列 铠装电缆通信 训练 Linux 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]