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利用声波时差资料确定岩石可钻性的研究
石油钻采工艺
1996年 18卷 第6期
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Title
STUDY OF DETERMINING THE ROCK DRILLABILITY WITH SONIC INTERVAL TRANSIT TIME
Authors
Zou Deyong
Chen Yonghong
摘要
在试验测定岩心的微钻头可钻性Kd和声波时差Δt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。
Abstract
The paper analyzes the relationship between rock drillability(Kd) and sonic interval transit time(Δt),and creates a computing model of using Δt 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.
关键词：
声波时差;
岩心试验;
岩石可钻性;
回归分析;
数学模型;
Keywords:
sonic interval transit time;
core test;
rock drillability;
regression analysis;
mathematical model;
DOI
10.3969/j.issn.1000-7393.1996.06.005
论文详情