摘要
为在钻井设计软件中精确地绘制出多控制点水平井靶体,给出了多控制点水平井靶体的数学定义。以矢量代数为数学工具,利用靶体设计轴线上任意点的法面坐标,给出了靶体外边界曲线的数学定义,提出了曲边长方体靶的新概念,建立了靶体外边界曲线的计算公式。钻井设计软件开发实践及应用效果表明,曲边长方体靶的定义是合理的,计算公式是精确的,且易于编程实现;可以在水平投影图、垂直投影图、剖面展开图、三维图形中精确地绘制出水平井靶体图形。
The mathematical defnition of horizontal well target with multiple control points was set, so as to describe it accurately in the drilling design software. The vector algebra was used as the mathematical tool, and the external boundary curve of target was mathematically defned by using the normal plane coordinates of an arbitrary point on the target design axis. Then, a new concept of cuboid target with curved boundary was proposed and the calculation formula was also established for the external boundary curve of target. And fnally, the drilling design software was applied in feld. It is shown that the defnition of cuboid target with curved boundary is reasonable and its calculation formula is accurate and can be easily presented in programming. Moreover, it was made possible to draw horizontal well targets accurately in horizontal projection, vertical projection, profle expansion and 3D diagrams.
出处
《石油钻采工艺》
CAS
CSCD
北大核心
2016年第3期286-290,共5页
Oil Drilling & Production Technology
关键词
钻井设计
水平井
井眼轨道
控制点
曲边长方体靶
drilling design
horizontal well
hole trajectory
control point
cuboid target with curved boundary
