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Noise Log——噪声测井。也叫声测井(Sound Log)或音频示踪测井(Audio tracer Survey)。它是运用高能流体从地层裂缝中穿过会产生一种涡流噪声这一原理来检查固井质量,寻找管外漏失的一种生产测井方法。由于噪声幅度及其频率是随着流体数量、类型以及流体所通过的介质的不同而变化,因而,通过对噪声特征的测量,可以判断流体流动的类型和方位。噪声测井与井温及其它测井仪器组合,是监视水力压裂过程的一种新的手段。 Electromagnetic Propagation Logging—电磁波传播测井。这是一种新的测井方法,主要用于测量在井眼附近地层中传播的微波频率的相位移和能量衰减情况,只要矿化度不高,可以求出与地层水矿化度关系不大的孔隙度和含水饱和度,划分油水层。在淡水中测量,效果最好。
Noise Log - Noise Logging. Also called Sound Log or Audio tracer Survey. It is a production logging method that uses the principle that high-energy fluid passes through cracks in the formation to generate a vortex noise to check the cementing quality and find out the leakage outside the pipe. Because the noise amplitude and its frequency vary with the amount and type of fluid and the medium through which the fluid passes, the type and orientation of the fluid flow can be determined by measuring the noise signature. Noise logging is combined with well temperature and other logging tools to provide a new means of monitoring hydraulic fracturing. Electromagnetic Propagation Logging - Electromagnetic Propagation Logging. This is a new logging method that is mainly used to measure the phase shift and energy attenuation of the microwave frequencies propagating in the formation near the borehole. As long as the degree of mineralization is not high, the relationship with formation water salinity is not found Large porosity and water saturation, the division of oil and water layer. Measured in fresh water, the best.