不确定性信息方法确定气测渗透率  

Determine gas log permeability by uncertainty information method

作　　者：朱义东[1] 荣宁[2] 李建萍 廖建华[2] 杨白书[4] 

机构地区：[1]西南石油学院,四川成都610500 [2]中油塔里木油田分公司,新疆库尔勒841000 [3]新疆准东石油技术股份有限公司,新疆阜康831511 [4]中油大庆油田责任有限公司,黑龙江大庆163000

出　　处：《特种油气藏》2005年第3期45-46,108-109,共4页Special Oil & Gas Reservoirs

摘　　要：在实验室测定气测渗透率的方法中,由于人为的测量、读数误差,将导致多次测量后的算术平均值偏离实际值,而且求得的算术平均值是1个实数,通过它表示多个实测值将会导致信息的遗漏和数据的失真,可信程度较低。采用不确定性信息方法表示,即用可信度分布密度函数将所有数据包括进来,使数据无遗漏、不失真,具有抗干扰性能好、减少误差积累、计算结果更准确以及实用性强等优点。In laboratory measuring method of gas log permeability, the arithmetic mean of many measurements may deviate from the actual value due to artificial errors in measurement and reading, and the arithmetic mean thus obtained is a real number, which may result in missing information and data distortion when it is used to represent many measured values. It has a low credibility. The uncertainty information method involves all data by using credibility distribution density function to avoid data missing and distortion. This method is antijamming, more accurate and practical, and reduces error accumulation.

关 键 词：气测渗透率 误差 不确定性信息 

分 类 号：TE311[石油与天然气工程—油气田开发工程]