【摘 要】
：
为让圆弧型井眼轨道设计模型的求解方法简洁、有效、快速且具有足够精度,提出了井眼轨道解析、扫描和迭代的综合求解法.讨论了三段制和五段制两种典型的圆弧型井眼轨道及其初
【机 构】
：
中国石油集团工程技术研究院有限公司 北京102206
论文部分内容阅读
为让圆弧型井眼轨道设计模型的求解方法简洁、有效、快速且具有足够精度,提出了井眼轨道解析、扫描和迭代的综合求解法.讨论了三段制和五段制两种典型的圆弧型井眼轨道及其初值问题.对于三段制轨道,利用其几何性质直接给出解析计算公式;对于五段制轨道,分为约束目标井段的井斜角或方位角、约束中间稳斜段的井斜角或方位角两大类,并建立了简洁的参数约束方程,提出了先以图谱扫描初步求解、再以此为初值迭代求解的综合求解方法.研究结果表明,所提出的算法简单实用,易于编程实现,在三维定向井和水平井设计中具有应用价值.
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