[1]陈小元,杨宝华,秦 春,等.塔河油田TH12328CH长靶前位移中短半径水平井钻探实践[J].复杂油气藏,2014,(01):58.
　Chen Xiaoyuan,Yang Baohua,Qin Chun,et al.Drilling practice of the medium-short radius horizontal well TH12328CH with a long displacement before the target in Tahe oilfield[J].Complex Hydrocarbon Reservoirs,2014,(01):58.
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塔河油田TH12328CH长靶前位移中短半径水平井钻探实践
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
期数:
2014年01期
页码:
58
栏目:
油气工程
出版日期:
2014-03-25

文章信息/Info

Title:
Drilling practice of the medium-short radius horizontal well TH12328CH with a long displacement before the target in Tahe oilfield
作者:
陈小元; 杨宝华; 秦 春; 莫 钺; 王 委; 董来明
中国石化江苏石油工程有限公司钻井处,江苏 江都 225261
Author(s):
Chen Xiaoyuan; Yang Baohua; Qin Chun; Mo Yue; Wang Wei; Dong Laiming
Drilling Company of Jiangsu Petroleum Engineering Ltd.Co.,SINOPEC,Jiangdu,Jiangsu 225261
关键词:
长靶前位移 中短半径 侧钻 水平井 轨迹控制
Keywords:
long displacement before target;  medium-short radius;  sidetracking;  horizontal well;  trajectory control
分类号:
TE243
摘要:
塔河油田常规中短半径水平井靶前位移为40～50 m,造斜率控制在(1°～1.5°)/m。TH12328CH侧钻水平井为避开一个溢漏并存的定容体腔,靶前位移长达395 m。针对该井井身轨迹控制难度大,测量仪器性能要求高,钻压传递困难,极易发生出新眼及钻具疲劳断裂等事故难点,介绍了该井井身剖面设计、开窗试钻、井身轨迹控制、优快钻井技术等方面措施。钻探实践表明:3°单弯螺杆是塔河油田中短半径侧钻水平井的理想选择; 短无磁测斜工艺可提高井底轨迹预测精度; 采用柔性倒装钻具组合、优选仪器、下钻分段循环降温、下钻遇阻摆原工具面位置进行划眼等措施,保证了施工安全。
Abstract:
For conventional medium-short radius horizontal wells in Tahe oilfield,the displacement before the target is 40 to 50 m,and the build-up rate is 1 to 1.5 degree per meter.To evade a cavity in which overflow and lost-circulation occured at the same time,the well TH12328 has a long displacement of 395 m.Aiming at a series of difficulties such as difficultly controlling well trajectory,difficultly conveying WOB,easily making a new borehole,drilling string fatigue,high requirements for survey tools,etc.,this article introduces some methods adopted in well profile design,casing sidetrack,trajectory control,and high performance drilling.The drilling practice showed that 3° motor is the best choice for the medium-short horizontal well in Tahe oilfield; the short-collar survey technology can improve prediction accuracy of well trajectory; some measures can guarantee drilling safety,which include using flexible inverted BHA,optimizing survey tools,reducing temperature by circulation while trip in,reaming located by old tool face,etc.

参考文献/References:

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[5] 陈小元,王绪鹏,刘波,等.TP4CH超深侧钻水平井钻探技术.复杂油气藏,2011,4(2):72-75.
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备注/Memo

备注/Memo:
收稿日期:2013-04-27; 改回日期:2013-06-30
作者简介:陈小元(1969—),高级工程师,现从事钻井工程技术研究及管理工作。电话:0514-86761877,E-mail:chen_xy.jsyt@sinopec.com。
攻关项目:江苏石油勘探局(JS 12029)
更新日期/Last Update: 2014-03-25