摘要
通过大量岩心运行实验及现场钻进试验，提出了反循环连续取心水力参数的计算公式，确定了保证岩心顺利输送的液流速度临界值与管路各处的压力损失值，从而进一步探讨了水力输送岩心的机理，为连续取心钻具的优化设计及保证岩心的顺利输送提供了水力参数选择依据。
: Based on many core lifting tests and field drilling, calculation formulas for hydra-
ulic parameters in reverse circulation corrtionuous coring is raised, the critical drilling fluid lifting
velocity to ensure smooth core transportation and the pressure loss at different places of pipeline
are determined, thus the mechanism of hydraulic core transportation is discussed, providing a base
for the selection of hydraulic parameters for optimum design of contimuous coring tool and or
smooth core transportation.
出处
《探矿工程》
1992年第6期9-12,共4页
Exploration Engineering(Drilling & Tunneling)
