石油钻采工艺2017，Vol.39Issue(4)：429-434,6.DOI:10.13639/j.odpt.2017.04.007
盐井大井斜开窗侧钻水平井绕腔连通技术
Cavity bypassing connection technology for high-angle window sidetracking of brine horizontal well
王治国 1李根奎 1杨国杰2
作者信息
- 1. 中国石化华东石油工程公司江苏钻井公司
- 2. 中国石化华东石油工程公司工程技术公司
- 折叠
摘要
Abstract
After a cavity is built up by means of solution mining through brine wells, the rock salt bed in the cavity suffers plastic damage for its support pressure is higher than the strength limit corresponding to its stress state. As the exploitation continues, the dam-age form is unchanged but the damage range is expanded. When running through mudstones along the original drilling trajectory of well group Su 16, cavity passages are blocked, so brine exploitation rate is impacted seriously, only 6-7 m3/h, it is basically at semi production state and the blockage cannot be removed even multiple technologies are adopted. High angle windowing technology and short radius horizontal well technology were introduced to carry out 3D bypass design, trajectory optimization and window sidetracking program op-timization on side Well Suyan 16-1 so that its trajectory can bypass small cavities and connect with large cavities of Well Suyan 16. With the successful application of high angle windowing technology, high deflection rate trajectory control and cavity bypassing connection technology, the high angle windowing based cavity bypassing connection technology is developed. It provides the demonstration basis for the normalization of window sidetracking of horizontally connected brine wells.关键词
盐井/侧钻水平井/斜向器/轨道设计/三维绕障/溶腔连通Key words
brine well/sidetracking horizontal well/whipstock/trajectory design/3D bypass/cavity connection分类
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王治国,李根奎,杨国杰..盐井大井斜开窗侧钻水平井绕腔连通技术[J].石油钻采工艺,2017,39(4):429-434,6.
