石油钻采工艺Issue(5)：26-29,4.DOI:10.13639/j.odpt.2015.05.007
伊朗北阿首口双分支井AZNN-022井眼轨道设计与控制
Well path design and control of the ifrst double branch well AZNN-022 in Iran North Azadegan Oilifeld
杨晓峰1
作者信息
- 1. 中国石油长城钻探工程有限公司，辽宁盘锦 124010
- 折叠
摘要
Abstract
Iran north Azadegan Oilifeld entered integrated development stage in 2011, and a number of horizontal wells have been drilled targeted at Savark 3. The average depth of the drilled horizontal wells is over 4 000 m, and average drilling period was over 3 months. In order to improve oil recovery of single wells and shorten drilling period, the ifrst double branch well AZNN-022 was planned. The ifnal zone of the holes of this branch well is different from the target of the main hole, and its horizontal offset is short, its curvature is designed as high and it is dififcult to prevent collision during drilling. This paper successfully addressed the above dififculty by optimizing the window cutting location, optimized trajectory design, accurate control of the trajectory, and anti-collision scan. The branch holes were successfully drilled and downhole safety was realized. This is of great guidance signiifcance to subsequent drilling of double branch wells and sidetracking drilling in the deviated hole.关键词
轨迹控制/防碰扫描/钻具组合/地质导向/摩阻水力分析Key words
trajectory control/anti-collision scan/drilling tool assembly/geosteering/drag hydraulic analysis分类
能源科技引用本文复制引用
杨晓峰..伊朗北阿首口双分支井AZNN-022井眼轨道设计与控制[J].石油钻采工艺,2015,(5):26-29,4.
