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多探头脉冲中子技术(MDPN)的发展是目前岩石物理监测的一个转折点,即使在很复杂的测井环境下录取的MDPN资料,经证实仍能反应复杂的开采机理,并能够通过各种各样的传输方式展现出来。该技术有随钻测井(仅限于基线)和电缆测井两种测量方式,井下仪器有三个或多个伽马探头,本文主要介绍了在套管井中的测井应用情况。资料采集设备和资料解释常规流程之间存在明显的区别。能够完成MDPN资料采集的设备有很多种,因此在不同的测井目的中,了解它们测量的是什么,以及需要处理到什么程度才能得到有用的结果,这是非常重要的。将不同仪器录取的原始资料进行对比,说明了MDPN不同测量方法的优点及在岩石物理性质方面的潜在应用价值。根据特定的测井目的,对资料进行了相应的处理和解释。本文介绍了MDPN技术在不同测井目的中运营商的角度以及适合所有不同仪器的常规解释流程。
The development of multi-probe pulsed neutron technology (MDPN) is currently a turning point in rock physics monitoring. MDPN data, even in very complex logging environments, has been shown to respond to complex mining mechanisms and to be used by various The kind of transmission shows up. This technique has two measurements, logging while drilling (baseline only) and cable logging. The downhole tool has three or more gamma probes. This paper describes logging applications in cased wells. There is a clear difference between the data collection device and the normal process of data interpretation. There are many types of devices that can complete MDPN data acquisition, so it is important to understand what they measure and how much processing needs to be done to get useful results for different logging purposes. The comparison of the original data taken by different instruments shows the advantages of different measurement methods of MDPN and the potential application value in petrophysical properties. According to the specific logging purpose, the data are processed and explained accordingly. This article describes the operator perspective of MDPN technology for different logging purposes and the common interpretation process for all different instruments.