Evaluation of Equivalent Circulating Density in Deep Water Dynamic Kill Drilling

摘要：

　　Dynamic kill drilling is a technology which is applied in order to control the deep water drilling shallow gas or shallow wells flowing by establish a normal cycle automatically in the deepwater shallow wells section.Equivalent circulating density (ECD) is an important parameters to control the bottom hole pressure,in the ECD estimate,if we dont consider the effects of low temperature on rheological parameters of drilling fluid,it will result in errors in ECD estimates.Considering the impact of low temperature on the rheological parameters,this paper determines the temperature,rheological parameters and the annulus circulating pressure loss of each well section.Then Superposing each well section annular circulating pressure loss together,and finally calculate the equivalent circulating density.The deeper the water the greater of difference between ECD prediction model and the results calculated by rheological parameters on ground,and the more shallow wells the larger of difference.Therefore,in the process of deep water surface layer dynamic killing,We need to predict the equivalent circulating density of drilling fluids (ECD) accurately.

关键词： Equivalent circulating density dynamic kill drilling, deepwater, Drilling fluids

作者: Xiaoling Jiang Zongming Lei Qingbao Meng

作者单位: Chongqing University of Science & Technology ,Chongqing 401331 ,China Chongqing University of Science & Technology ,Chongqing 401331 ,China;Zhongyuan Oilfield in Puyang c

会议类型: 国际会议

会议名称: the Second International Conference on Frontiers of Manufacturing and Design Science(第二届制造与设计科学国际会议(ICFMD 2011))

会议地点: 台湾

会议语种:英文

页码: 3048-3052

在线出版日期: 2011-12-11（万方平台首次上网日期，不代表论文的发表时间）