石油钻采工艺2009，Vol.31Issue(5)：23-28,6.
PDC钻头水力学研究最新进展
The latest developments of the hydraulics research on PDC bit
摘要
Abstract
Based on Literature in recent years of Bit Hydraulics at home and abroad, this paper addresses the latest developments of hydraulic parameters of PDC bits, bottom flow field and the progress of hydraulic optimization, proposing research problems and future research directions. Analysis shows that optimization of hydraulic parameters of PDC bits tend to use higher displacement and lower pumping pressure; the bits bottom flow field simulation Has been gradually shifting from two-dimensional, single-nozzle flow numerical simulation developed to a three-dimensional, rotating, non-symmetric multi-nozzle flow numerical simulation; bits bottom flow field has organically combined with experiments; PDC bits bottom flow field simulation use water as the medium, leaving the influence of flow field by the viscosity of drilling fluid, bottom debris and the bottom temperature out of account. The Hydraulics Research on PDC bit still at a qualitative stage, the quantification of PDC bit hydraulics is the focus of future research work.关键词
PDC钻头/水力学/数值模拟/井底流场/水力结构Key words
PDC bit/ hydraulics/ numerical simulation/ bottom flow field/ hydraulic structures分类
能源科技引用本文复制引用
朱海燕,王锡洲,刘时英,刘清友..PDC钻头水力学研究最新进展[J].石油钻采工艺,2009,31(5):23-28,6.基金项目
国家自然科学基金项目"基于钻井系统动力学的井眼轨迹预测理论及控制方法研究"(编号:50474040) （编号:50474040）
中国石油化工集团公司先导性项目"钻柱连续循环系统技术研究"(编号:P07044) （编号:P07044）
中国石油化工集团公司技术开发项目"巴麦优快钻井技术研究"(编号:GYKY200725)资助. （编号:GYKY200725）
