石油钻采工艺2016，Vol.38Issue(1)：1-4,4.DOI:10.13639/j.odpt.2016.01.001
大庆油田第一口深层天然气双分支水平井钻完井实践
Drilling and completion practice on the ifrst deep dual branch horizontal gas well in Daqing Oilifeld
摘要
Abstract
The Changde deep gas ifeld of Daqing Oilifeld is volcanic reservoir, most of which are tight volcanic rocks and sandy conglomerates. So it has poor drillability and poses great dififculty for drilling. In order to maximize the reservoir contact area and their producing degree, a dual branch horizontal well, Fangshen 6-shuangping 1 well, was drilled particularly in this gas ifeld. The horizontal section length of this dual branch hole is over 1 300 m, and the sidetracking and horizontal drilling are of great dififculty. The design of wellbore conifguration, wellbore trajectory and completion methods was optimized with reference to the data of offset wells and in combination of formation features.Meanwhile, the speeding-up drilling tools were used and the bottom hole assembly for upper and lower branches was optimized, so the average drilling rate of horizontal section of this well was increased remarkably compared with an offset well of same length horizontal section. The successful drilling of this well has solved the problem of single drilling technology for deep gas pools in Daqing Oilifeld and provides a new method for developing deep gas wells efifciently.关键词
火山岩储层/深层气井/双分支井/优化设计/大庆油田Key words
volcanic reservoir/deep gas well/dual branch well/optimization design/DaqingOilifeld分类
能源科技引用本文复制引用
潘荣山,张凯,李继丰,白秋月..大庆油田第一口深层天然气双分支水平井钻完井实践[J].石油钻采工艺,2016,38(1):1-4,4.基金项目
国家自然科学基金“钻头谐振激励下岩石的响应机制及破碎机理研究”（编号51274072）。 （）
