小直径钻头层次优选AHP模型的确立及应用  

The application and determination of analytical hierarchy process model in the optimization of small diameter bits

作　　者：甘一风[1] 石晓兵[1] 常伟 

机构地区：[1]西南石油大学 [2]中国海洋石油渤中25-1作业分公司

出　　处：《内蒙古石油化工》2006年第8期146-148,共3页Inner Mongolia Petrochemical Industry

摘　　要：钻井中,钻头费用在1口井的总投资里所占的比例一般不大,但钻头的使用效果会直接影响整个钻井。由于小直径钻头的特殊性,轴强度低,落井后不易打捞,以及转速、钻压、井下工具等因素的限制,小直径钻头的优选较常规尺寸更重要,在进行小直径钻头评价和优选时,每种类型的小直径钻头都包含有各类技术经济指标,很多指标既相互依赖,又相互矛盾,因而给决策、评价带来很大困难。另外,决策人员有时很容易受某一具体指标的影响,常常会单凭一项经济或技术指标而肯定或否定某一类型的钻头。为此,本文对中原油田小井眼(458″)钻头尝试运用综合评价法中的层次分析(AHP,A nalyticH ierarchy Process)理论进行评价与优选。The expenses of bits is low proportion in drilling ,but the bits can badly affect the drilling . It is more important for small diameter bits than the general in evaluation and optimization . The optimization of the small diameter bits is affected by many factors, which are both influenced and contradictory . And when we select the best one from kinds of small diameter bits , a single index is commonly adopted ,even sometimes other factors are comprehensively considered . The optimization is also determined by personal judgments and lacks scientific operational method and programs . In this paper ,the weight of each factor is estimated by using the hierachical analysis process . On this basis , the applicability magnitude of each kind of small diameter bit can be established by a method of weight means . It can provided a scientific and quantitative foundation for comprehensive optimization of the small diameter bits.

关 键 词：层次分析法 小直径钻头 层次分析模型 

分 类 号：TE931.2[石油与天然气工程—石油机械设备]