摘要
声电测井是重要的储层渗透率评价方法。研究实现了一种新型声电测井仪(AELT),该仪器采用独创的阵列式复合探测器结构,具有针对声电测井方法的全功能、多参数探测能力。论述了探测器的结构和基本参数;仪器电子系统包括声电信号激励、数据采集、仪器控制和数据通讯等模块,对其组成及原理进行了介绍。仪器实际测井数据确认了界面和伴随2种基本声电转换波信号的特征,提出的归一化转换波能量比被证明与地层渗透特性高度相关;对进一步深入研究的方向作出了展望。
Acoustoelectric logging is an essential evaluating method for reservoir permeability. A new type of acoustoelectric logging tool （AELT） is worked out based on our researches. An originally invented array complex-sonde structure is applied in the tool, which is capable of full functional and multi-parameter prospecting for the acoustoelectric logging method. The structure and basic parameters are extensively described in this paper. The electric system of the tool includes the modules of acoustic and electric excitation, data acquisition, instrument control and data communications, etc. The characteristics of the interface and accompanying basic acoustoelectric converted-wave signals are verified based on the practical data from the tool. The proposed normalized-energy-ratio of the converted-wave is highly correlated to the formation permeability characteristics, and some outlooks of further in-depth researches are presented.
出处
《测井技术》
CAS
CSCD
2015年第3期323-329,共7页
Well Logging Technology
基金
中国石油天然气集团公司重大科技项目测井前沿技术与应用基础研究(2011A-3903)
国家重点实验室课题油气资源与探测资助
关键词
测井仪器
声电效应
动电效应
震电效应
探测器
数据采集
渗透率
logging tool
acoustoelectric effect
electrokinetic effect
seismoelectric effectsonde
data acquisition
permeability
