影响单位进尺成本的因素及其影响规律研究

Unit Drilling Cost Influencing Factors and Influencing Regularities

介绍了一种用于分析不同因素对单位进尺成本影响的新方法——偏因素分析方法,该方法可用于在影响因素众多的情况下确定各因素对施工经济性的影响作用;同时介绍了成本影响系数这一新概念,成本影响系数表示了某一因素在一定的条件下对单位进尺成本影响程度的大小。在钻进技术经济研究中采用成本影响系数,可使对影响单位进尺成本因素的对比评价更加方便易行。以一个5000m取心钻进项目为例,计算了不同影响因素变化时的单位进尺成本和成本影响系数,最终根据成本影响系数绝对值的大小,对影响单位进尺成本的不同因素进行了评价。

This article introduces a new method, ＂partial variable analysis method＂, for analyzing the influence of different factors on unit drilling cost. Also it discusses a new conception represented cost influencing factor, a measure of the influence of any parameter that influences drilling economics. By using cost influencing factor in the drilling technical economics research, it can be much easier to use the evaluation of different influencing parameters that influences drilling economics. Taking a 5000 m deep core drilling project as an example, the unit drilling cost and cost influencing factor of different parameters are calculated. According to the absolute value of cost influencing factor, the evaluation of different drilling cost influencing parameters is conducted.