石油钻采工艺2016，Vol.38Issue(1)：5-9,5.DOI:10.13639/j.odpt.2016.01.002
长庆油田短靶前距水平井钻井关键技术
Key drilling technology of horizontal well with short frontal distance from the target point in Changqing Oilifeld
薛让平 1杨光 1谢锦刚 2贾平军 3丁建东 4张旺宁2
作者信息
- 1. 川庆钻探工程公司长庆钻井总公司
- 2. 长庆油田公司工程技术管理部
- 3. 中国石油集团工程技术分公司
- 4. 华北油田公司采油工程研究院
- 折叠
摘要
Abstract
Drilling technology of horizontal well with short frontal didtance from target point has a lot of technical dififculties in the optimization design of wellbore trajectory and prediction of delfecting force of bottom hole assembly, such as the dififculties in predicting the maximum build-up rate and constant curvature very accurately. Analysis has been made against all these dififculties. The key technical point will be focused on the analysis on the inlfuence of frontal distance from the target and build-up rate in wellbore trajectory design on friction torque and the optimization of the prediction method of delfecting force of bottom hole assembly, and the main ideas on the wellbore trajectory design of horizontal well with short frontal distance from the target have been proposed, which means establishing constant curvature-based prediction method of delfecting force of bottom hole assembly with monotone increasing proifle by considering such factors as the stabilizer and structure corner, borehole enlargement and bit pressure. The feasibility of relevant key techniques has been demonstrated by combining cases and the prediction method established can effectively guide the requirements for delfecting force of bottom hole assembly when drilling is really made.关键词
水平井/短靶前距/井眼轨道优化/造斜率/长庆油田Key words
horizontal well/short frontal didtance from target point/wellbore trajectory optimization/build-up rate/Changqing Oilifeld分类
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薛让平,杨光,谢锦刚,贾平军,丁建东,张旺宁..长庆油田短靶前距水平井钻井关键技术[J].石油钻采工艺,2016,38(1):5-9,5.
