测井评价的“九性”关系及其研究方法

The Nine-property Relationship of Log Evaluation and Its Research Method

测井"四性"关系以及在其基础上发展的"五性"、"六性"和"七性"关系,忽略了井筒特性和测井评价的多维、多尺度特性等信息,致使常规储层评价技术不够深入和全面,非常规储层评价亦存在明显的缺陷。为应对这一挑战,整合和梳理出新"九性"关系,包括测井属性、井筒环境特性、岩性(结构、矿物组分)、物性(基质孔隙结构、次生孔隙)、地化特性、含油气性与产能特性、地层压力与流动和保存特性、地层三维非均质性(纵向、径向、周向)和储层可改造特性的关系。介绍了"九性"关系分析要注意的几个问题以及研究思路。预期该分析方法的深入应用,将为测井评价技术及其发展提供有益的借鉴。

In the past,the reservoir logging evaluation often based on the evaluation of the‘fourproperty＇relationship,or the five-property,six-property and seven-property relationship developed on the basis of four-property＇.However,this method often ignores the characteristics of wellbore and the multi-dimension and multi-scale characteristics of logging evaluation,which results in the conventional reservoir evaluation technology being simple and incomprehensive,as well as the unconventional reservoir evaluation.To meet this challenge,the new nine-property relationship has been integrated and sorted out in this paper.The new nine property relationship mainly reflects the relationship between logging attributes and wellbore and formation,including logging attributes, wellbore environment characteristic, lithology（structure, mineral components）,physical properties（matrix pore and secondary pore structure）,geochemical characteristics,oil-bearing properties and production characteristics,formation pressure and fluid flow and conservation characteristics,formation three-dimensional heterogeneity（longitudinal,radial,circle）and reservoir reform characteristics.This paper also introduces several issues that need attention in the process of analysis of the nine-property relationship,as well as the research ideas.It is expected that the application of the analytical method will provide a useful reference for logging evaluation technology and its development.