Fisher准则函数在测压点设计上的应用

Application of Fisher Criterion Function in Design of Pressure Measuring Points

目前渤海地区常用的电缆测压仪器主要有斯伦贝谢公司的MDT和中海油服的EFDT,但无论是斯伦贝谢公司还是中海油服都未对其测压仪器的工作条件给出明确的标准,测压点的设计都主要依托工程师的工作经验,导致现场实际测压成功率偏低。通过优选出与测压成败相关的敏感性参数,利用Fisher准则函数进行多参数降维处理,建立研究区的测压点设计标准,从而实现测压点设计优化和提高测压成功率的目的。

At present,MDT of Schlumberger and efdt of CNOOC are the most commonly used cable pressure measuring instruments in Bohai area.However,neither Schlumberger nor CNOOC has given a clear standard for the working conditions of their pressure measur⁃ing instruments.The design of pressure measuring points mainly depends on the working experience of engineers,which leads to the low success rate of actual pressure measurement.By optimizing the sensitive parameters related to the success or failure of pressure measurement,the Fisher criterion function is used to reduce the dimension of multi-parameters,and the design standard of pressure measurement points in the study area is established,so as to achieve the purpose of optimizing the design of pressure measurement points and improving the success rate of pressure measurement.