Drilling Fluid Pressure Calculation In Horizontal Directional Drilling
Drilling fluid plays an important role in horizontal directional drilling (HDD).It cuts soil,suspends and transports cutting out of the borehole,it forms filter cake to prevent slurry lose and maintain the borehole stability.During HDD process,reasonable drilling pressure should be controlled.Maintaining the minimum mud pressure is required for regular drilling fluid flow.Maintaining the maximum allowed mud pressure is also required for borehole stability and prevention of frac-out.This paper briefly introduces the drilling fluid calculation method,then presents results of an application case in the Yangtze River crossing,which the length of HDD is 3300 meters.Base on the calculation,several recommendations are presented for this crossing.
Horizontal Directional Drilling Mud Pressure Calculation the Yangtze River Crossing Design
Jiang Lu Hongzhou Zhang Qiang Ma
Engineer, Technology Research Center, China Petroleum Pipeline Engineering Corporation; No.146, Hepi Engineer, Shanghai Branch, China Petroleum Pipeline Engineering Corporation; No.200 Lane 91 Eshan Ro
国际会议
北京
英文
1870-1879
2012-10-14（万方平台首次上网日期，不代表论文的发表时间）