论文部分内容阅读
通常情况下我们采用电缆测井来评价非常规页岩地层。但是,由于井眼长时间受到浸泡而引起不稳定的问题将使得我们越来越多地使用随钻测井来评价非常规页岩。本文讨论了使用随钻测井工具记录非常规页岩环境的服务和随钻实时数据传输的优点,同时也讨论了LWD和电缆测井的差异,包括裸眼井和套管井的数据采集方式,延时效应和声波、电阻率与核各向异性的响应。本文列举了Bakken和Haynesville页岩的方位电阻率,密度,井径和声波数据。还特别考虑了高角度井的测井解释。最后,为了在非常规页岩地层中采集最理想的数据,提供了最优化的LWD项目和仪器配置。
Normally we use wireline logging to evaluate unconventional shale formations. However, the problem of instability caused by prolonged immersion of the wellbore will allow us to use logging-while-drilling logging more and more to evaluate unconventional shale. This article discusses the benefits of using logging-while-drilling tools to record services in unconventional shale environments and real-time data while drilling, and discusses the differences between LWD and wireline logging, including data acquisition for openhole and cased wells, Response of Time Effect and Sonic, Resistivity and Nuclear Anisotropy. This article lists the azimuthal resistivity, density, caliper, and acoustic data for the Bakken and Haynesville shales. Special consideration is also given to well logging interpretation of high-angle wells. Finally, in order to collect the best data in unconventional shale formations, optimal LWD projects and instrument configurations are provided.