海上同层侧钻井实施方案优选方法
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摘要
为了评价同层侧钻井之裸眼水泥塞侧钻方式与套管开窗侧钻方式的经济性,优选侧钻方式,介绍了2口同层侧钻井的常规的设计及作业过程,分析弃井过程中打捞筛管工期的长短及裸眼水泥塞侧钻的经济性。通过建立应用侧钻方案决策图,筛选影响侧钻经济性的关键因素,归纳出的打捞筛管经济工期及经济临界剩余工期的计算方法,可用于在现场作业过程中出现筛管打捞困难的情况下,是否改变方案的决策,以达到节约成本之目的,具有一定的推广价值。
In order to evaluate the economy of openhole cementing sidetracking in the same layer and openhole sidetracking in casing to optimize the way of sidetracking,the conventional design and operation processes of 2 wells by the same layer sidetracking are introduced.The period of screen pipe fishing in well abandonment and the economy of openhole cementing sidetracking are analyzed,by establishing a decision graph of sidetracking scheme,the key factors affecting the economy of sidetracking are seeked out,and the calculation method concluded for the economic construction period of screen pipe fishing and critical surplus construction period of the economy can be used as the decision basis for whether the screen pipe fishing scheme should be adjusted or not.
In order to evaluate the economy of openhole cementing sidetracking in the same layer and openhole sidetracking in casing to optimize the way of sidetracking,the conventional design and operation processes of 2 wells by the same layer sidetracking are introduced.The period of screen pipe fishing in well abandonment and the economy of openhole cementing sidetracking are analyzed,by establishing a decision graph of sidetracking scheme,the key factors affecting the economy of sidetracking are seeked out,and the calculation method concluded for the economic construction period of screen pipe fishing and critical surplus construction period of the economy can be used as the decision basis for whether the screen pipe fishing scheme should be adjusted or not.
引文
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[8]王允海,和鹏飞,万祥,等.渤海152.4mm小井眼长裸眼段筛管完井技术[J].石油化工应用,2016,35(5):27-29.
[2]赵少伟,范白涛,岳文凯,等.海上高效侧钻小井眼水平井钻完井技术研究及应用[J].探矿工程(岩土钻掘工程),2016,43(3):13-18.
[3]罗鸣,顾纯巍,杜威.半潜式钻井平台水平井裸眼侧钻技术[J].石油钻采工艺,2014,36(3):20-22.
[4]叶金胜,郝金克,贾庆升,等.胜利油田水平井防砂管柱打捞技术[J].石油机械,2002,30(9):40-42.
[5]陈建庆,章桂庭.裸眼水平井防砂管内冲砂技术探讨[J].石油天然气学报,2013,35(5):131-133.
[6]韩耀图,林家昱,谢涛,等.渤海油田水平砾石充填井防砂管柱打捞技术的应用[J].中外能源,2016,21(5):58-62.
[7]王晓鹏,韩耀图.渤海油田低效井侧钻技术应用前景分析[J].非常规油气,2015,2(5):60-65.
[8]王允海,和鹏飞,万祥,等.渤海152.4mm小井眼长裸眼段筛管完井技术[J].石油化工应用,2016,35(5):27-29.