摘要
在定向钻井设计和施工中,需要根据造斜率来选择和设计钻具组合。对于弯壳体导向钻具来说,钻具的结构参数是影响造斜率的主要因素。几何法可以比较直观地反映出这些结构参数与造斜率之间的关系,突出了关键因素对工具造斜率的影响,计算方法简单,计算精度可满足工程要求,是设计弯壳体导向钻具的一种有效方法。在保持精确几何关系的条件下,简化了几何造斜率的计算方法,所有计算公式都未做近似处理,是几何法的精确解。最后,根据不同的设计要求,提出了设计导向钻具的枚举法和迭代法,并给出了各种条件下的设计示例。
During directional drilling design and constru ct ion,it is necessary that choice and design bottom hole assembly rely on build-u p rate.To bend housing steerable drill tool,the structure parameter of drill to ol is key influence factor of build-up rate. The relation of structure parameter and build-up rate can be frank reflect by geometry method, and the method stand s out the key factor influences build-up rate of the tool,calculation method si mple, and calculation precision does satisfy engineering requirement,is a avail able method to design bend housing steerable drill tool. Calculation formula doe s not dispose approximately,is a exact explain of geometry method.At last,accor ding to the different design claims,enumerate method and iteration of steerable drill tool is designed,and give some design exemples in different conditions.
出处
《石油钻采工艺》
CAS
CSCD
北大核心
2005年第4期18-20,23,共4页
Oil Drilling & Production Technology
基金
中国石油化工股份有限公司科技攻关项目(编号P01075)
关键词
导向钻井
钻具设计
造斜率
数学模型
水平钻井
steerable drilling drill tool design mathema tical model horizontal drilling Bent Housing motor
