1009地层倾角测井仪动态范围扩展技术

The Technolog of the Expansion of Dipmeter 1009's Dynamic Range

引进美国阿特拉斯公司制造的、3600系列测井仪器中的1009地层倾角测井仪,其地层电阻率的动态测量范围为0.25～100Ω·m,不能满足我国某些地区的测井需要.为此,需将此仪器进行技术改造,扩大其动态测量范围,以适应测井的要求.本文介绍了将该仪器的动态测量范围扩展到0.25～5000Ω·m的设计思想、实现方案,同时还给出了有关改造电路的设计参数和具体细节.

The dynamic measuring range of the formatiion resistivity for the imported dipmeter 1009 of 3600 series logging instruments made by Atalass Inc. is 0. 25Ω·m～100Ω·m, which can not meet the logging requirement at some place in our country. In order to meet the logging requirement, the tool should be reformed to expand the dynamic measuring range. This paper introduces the design idea and realizing method for expanding the dynamic measuring range to 0. 25Ω·m～5000Ω·m. At the same time, it also gives the design parameters and details about the relevant circuits.