摘要
归纳丛式定向井设计中常见障碍物的数学模型有细直圆锥、圆环加斜圆台和空间圆柱三种。分析了绕障设计的必要性,得出在各种障碍物条件下绕障必要性的判断关系式。提出一种新的三维绕障定向井设计方法——斜平面试算法,并给出了设计实例。
This paper sammarizes the mathematical models of the obstructions which are often encountered in cluster-directional well drilling designs, It is shown that they can be summarized in to 3 types: thin vertical circular cone, ring, and inclined frustum, and cylinder. It further analyses the necessity of bypassing the obstructions, derives criteria of bypassing under different conditions, and presents a new 3-D design method of bypassing the obstructions——the inclined plane-trial-and-error method. A design example is given also.
出处
《石油学报》
EI
CAS
CSCD
北大核心
1992年第3期109-117,共9页
Acta Petrolei Sinica
