摘要
为了精确地解释水平井的测井数据,建立了简化的声波测井物理模型,结合FFT等数字信号处理算法,利用Matlab语言模拟了不同地层孔隙度包含不同流体的情况下所接收到的声波测井信号子波的区别,提出了水平井周围介质特性的反演方法。该方法可用来分析和判定油水分布。将该方法程序化,开发了一套声波测井全信息精确分析软件。使用该软件对国内油田10余口油井的测井资料进行反演,分析解释出水井段,成功率在90%以上,生产效率得到明显提高。
In order to accurately interpret the logging data of horizontal well,a simplified physical model of acoustic-logging is established combining with FFT and other digital signal processing algorithms,and an inversion algorithm was proposed for the property of medium around horizontal well. For the case of different porosity formation containing different fluid,the received acoustic-logging signal wavelet was calculated by employing Matlab language. Based on the above algorithm,the inversion interpretation software of acoustic-logging data was developed. Using this set of software to perform the inversion interpretations of logging data of more than 10 oil wells,the success rate is over 90%,and the production efficiency is increased obviously.
出处
《石油管材与仪器》
2015年第6期35-39,43,共6页
Petroleum Tubular Goods & Instruments
基金
国家自然科学基金(40974078)
关键词
水平井
石油测井
孔隙度
声衰减
反演解释
horizontal well
acoustic-logging
porosity
acoustic-attenuation
inversion interpretation
