摘要
在试验测定岩心的微钻头可钻性Kd和声波时差△t的基础上,分析了岩石可钻性与声波时差的关系,建立了用声波时差确定岩石可钻性的计算模式。结合胜利油田东车地区部分岩心的可钻性实测值及相应井段的声波时差测井资料,检验了该模式的实际符合情况,给出了修正的计算模式。修正模式的计算精度可满足工程要求,是一种求取油矿地层可钻性的新方法。
the paper analyzes the relationship between rock drillability (Kd) and sonic interval transit time(△t),and creates a computing model of using △t to determine Kd. The model wis modified with the data of core test and corresponding interval logs in Dongxin region,Shengli Oilfield. The modified model must be a new method to evaluate the formation drillability since its computing accuracy is favourable.
出处
《石油钻采工艺》
CAS
CSCD
北大核心
1996年第6期27-30,共4页
Oil Drilling & Production Technology
关键词
声波时差
岩心试验
岩石可钻性
数学模型
sonic interval transit time
core test
rock drillability
regression analysis
mathematical model