钻井井身质量评价方法研究及软件实现

A Study on the Evaluation Methods of Drilling Well Bore Quality and the Application of Software

传统的井身质量评价是对大量测量数据的简单计算处理,是通过与各单项的评价标准的对比,得到井身质量的单项评价报告。在传统单项质量评价的基础上,利用层次分析法,给出各单项相对于整个井身质量评价的权重系数,将各个单项评价综合起来,系统地考虑各评价单项对井身质量的整体影响,实现了井身质量评价的综合化;利用模糊数学方法,将一些不易定量的评价单项定量化;在实现方式上,结合现代软件技术对数据进行计算处理,使得井身质量评价达到了高效、快速、准确,满足工程实际需求。

Traditional evaluations on well bore quality usually do the simple calculation of a large amount of measuring data, and then an individual evaluation report has been obtained from the comparison with every individual evaluation standard. Based on the traditional evaluation of the individual quality, the weight coefficient of every individual evaluation in the whole evaluation of the well bore quality is given by the use of step analysis method. And then all individual evaluations are integrated so that the influences of all individual evaluations on the whole well bore quality are taken into systematic consideration, thus realizing the integration of well bore quality evaluation. Meanwhile, some individual evaluations that are difficult to determine are quantified by means of fuzzy mathematic method. In the approach of implementing the above, modern software technologies are used to deal with data, which makes the well bore quality evaluation reach the goal of high efficiency, rapidity and accuracy, and also meet the practical demands of projects.