预解释是整个测井解释中最重要的一个环节,可以用来确定地层模型(岩性)、地层流体(石油、天然气、水)以及各解释的中间参数。由于这一步是测井解释中的最重点,所以我们以解释的基本公式为基础,尝试如何才能确定各中间参数的理论值。所用的基本方法是作各种交会图。为了便于解释这些交会图,首先就交会图的使用目的、使用条件和使用方法加以讨论,然后进一步扩大到对泥质岩石的研究。下边叙述有关的研 Pre-interpretation is one of the most important aspects of logging interpretation and can be used to determine formation models (lithology), formation fluids (oil, gas, water), and intermediate values ​​for each interpretation. Since this step is the most important part of well logging interpretation, we will try to determine how the theoretical values ​​of each intermediate parameter will be based on the basic equations of interpretation. The basic method used is to make various rendezvous diagrams. In order to explain these rendezvous diagrams, the purpose, conditions of use and methods of use of the rendezvous diagram are discussed first, and then further extended to the study of shaly rock. The following describes the research