寻找油气藏的放射性方法技术及应用

Radioactivity survey for hydrocarbon's detection

成都理工学院, 成都610059

Chengdu Institute of Technology, Chengdu City, Internal Postcode 610059

通过近几年的研究, 寻找油气藏的放射性方法技术取得了较大进展。在数据采集技术方面, 以γ能谱测量和电离室α杯法为主, 采用自行研制的微机化仪器开展高灵敏度、高精度、多参数数据采集, 可以快速提供多种参数。在数据处理研究中, 以地面放射性测量工作站为基础, 利用成图成像、人机交互处理与解释等技术, 初步形成了油气藏上方放射性测量数据的预处理和异常分离方法。应用上述方法技术, 在四川进行了放射性方法找油气的试验, 预测了产油气有利区, 初步取得了成功。实践证明, 放射性方法是一种简便、快速、经济、实用、安全的找油气方法, 其推广应用可望取得良好的经济效益。

Through the research in recent years,much progrcss has been made in applying radioactivity to hydrocarbon's detection. By mcans of γ spectroscopic analysis and ionization chamber α-cup method, our data acquisition is dcsigned to perform on a selfdeveloped microcomputerized instrumcnt, with which multi-parameters can be rapidly acquired in high-precision. In data processing,many techniques including imaging, interactive interpretation are adopted to run in a surface workstation of radioactivity survey, through which the techniques for data prc-processing and anomaly separating are tentatively developed. As a result of applying the above mentioned techniques to the trial of radioactivity survey in oil/gas detection, we have successfully predioted some prospecting areas in Sichuan Province. Practice shows that the radioactivity survey should be a good method in oil/gas detection, whose properties of rapidity,economy,practicality and safety may result in dramatic cconomic benefits.