钻井液与完井液2009，Vol.26Issue(4)：34-37,4.
反循环气体钻井压力计算分析
Pressure Calculation and Analysis of Reverse Circulation Air Drilling
摘要
Abstract
In air drilling, the volumetric flow rate of air is critical to the success of under-balanced drilling. Air or other gases are highly compressible so the volumetric flow rate is closely related to pressure which is comprehensively studied by a lot of researchers. Take air as an example, equations calculating pressures in drill pipes and in annular space are derived and general solutions of the equations obtained. By defining the equation constants from boundary conditions, the change of pressure with temperature and well depth is solved, from which air volumetric flow rate can be calculated. This calculation provides the basis for drill-ing rig selection.关键词
反循环气体钻井/压力计算推导/公式求解Key words
Reverse circulation air drilling/ Pressure calculation and derivation/ Used for equation solution分类
能源科技引用本文复制引用
朱丽红,殷琨,刘建林,黄勇..反循环气体钻井压力计算分析[J].钻井液与完井液,2009,26(4):34-37,4.
