水平井的靶心距计算  

Calculation of the distance to target center in horizontal well

作　　者：张积锁[1] 鲁港[2] 白冬青[3] 

机构地区：[1]中国地质大学,北京100083 [2]中油辽河油田公司,辽宁盘锦124010 [3]中油辽河石油勘探局,辽宁盘锦124010

出　　处：《特种油气藏》2008年第1期95-98,共4页Special Oil & Gas Reservoirs

摘　　要：对行业标准中的靶心距计算进行补充、完善和推广,应用解析几何学中的点到平面的有向距离的概念,给出了入靶点所在测段的判别条件和新算法,对圆柱螺线法和最小曲率法推导出了入靶点坐标的有关计算公式。该计算方法在三维水平井钻井质量评价、中靶分析等问题中有重要的应用价值。This paper supplements,improves and spreads the calculation of the distance to target center in industrial standard,gives the discriminant conditions and a new algorithm for the measurement section where the entry point to target is located by using the directional distance from point to plane in analytic geometry,and deduces related calculation equations of the entry point to target for cylindrical helical method and minimum-curvature method.This method is of important application value in 3-D horizontal well drilling quality evaluation and target-entry analysis.

关 键 词：定向井 水平井 靶心距 实钻轨迹 解析解 

分 类 号：TE243[石油与天然气工程—油气井工程]