电磁流量测井在水文地质勘探中的应用

Application of Electromagnetic Flow Logging In Hydrogeological Exploration

电磁流量测井属于水文测井内最直接、最可行的物探方法,测量范围较宽广,测量可靠,方法简单,将其方法应用于水文地质中,有较好效果。通过电磁流量测井,可以划分钻孔内各含水层的深度、厚度;确定钻孔内地层涌(漏)水部位的涌(漏)水量,估算单孔涌水量;查明钻孔中含水层之间的补给关系,并测定钻孔内水的流速、流向,计算各单层含水层涌(漏)水量,并计算Q=f(h)曲线以及Q(s)曲线等参数。针对电磁流量测井具体技术,本文介绍了电磁流量测井的测量方法、数据采集方式、资料整理及解释方法等,有助于详细了解电磁流量测井仪器及其实际效果,并在实际工程实践中进行了应用。

electromagnetic flow logging is the most direct and feasible geophysical method in hydrology logging. It has a wide range of measurement, reliable measurement and simple method. The method is applied to hydrogeology and has a good effect. Through the electromagnetic flow logging, the depth and thickness of the aquifers in the borehole can be divided and the water inflow （leaking） in the area of the inner layer of the borehole is determined, the water inflow of the single hole is estimated, the recharge relationship between the aquifers in the borehole is ascertained, the flow velocity and direction of the inner water in the borehole are measured, and the water inflow （leakage） of each single layer is calculated and the water flow in the borehole is measured. The parameters such as the Q = f （H） curve and the Q（s） curve are calculated. In this paper, in view of the specific technology of electromagnetic flow logging, this paper introduces the measurement method, data collection method, data arrangement and interpretation method of electromagnetic flow logging, which is helpful to understand the electromagnetic flow logging instrument and its practical application in detail, and it should be used in practical engineering practice.