摘要：During well-drilling process, due to large drag, torque and serious buckling condition, the drill string is inevitably in contact with the casing surface, which can lead to wear of the casing. In this paper, an improved casing wear prediction model in consideration of sinusoidal buckled drill string was developed based on energy dissipation principles and the geometric shape of the buckled pipe. A casing wear factor was introduced in the model, and it can be calibrated using collected parameters from wellbore caliper testing for wells with similar well structure and trajectory. The calibrated model was then applied to the casing wear prediction in Fuling shale gas field, and the prediction results of well X2 through the caliper testing data from a similar well of X1 show that, as the measured well depth to 2700 m, the calculation error of casing wear can be over 23.9% if sinusoidal buckling is not considered. Besides, the predicted location that serious wear may occur was of 1989 m using a previously proposed steady state model, but it is of 1794 m with the new model prediction, and the error is 9.8%. The results indicate that the previous models might be inaccurate in predicting the casing wear.
© 2019, Periodical Office of China University of Petroleum. All right reserved.

ISSN号：1673-5005

卷、期、页：v 43,n 4,p69-74

发表日期：2019-08-20

期刊分区（SCI为中科院分区）：无

收录情况：EI（工程索引）

发表期刊名称：Zhongguo Shiyou Daxue Xuebao (Ziran Kexue Ban)/Journal of China University of Petroleum (Edition of Natural Science)

参与作者：Adeeb, Samer,Tao, Hong,Tao, Ye,Ren, Shaoran,Pang, Wanying,Zhang, Xinfang

通讯作者：谭雷川,王正旭

第一作者：高德利

论文类型：期刊论文

论文概要：谭雷川,高德利,Adeeb, Samer,Tao, Hong,Tao, Ye,王正旭,Ren, Shaoran,Pang, Wanying,Zhang, Xinfang，Casing wear prediction model in consideration of sinusoidal buckled drill string，Zhongguo Shiyou Daxue Xuebao (Ziran Kexue Ban)/Journal of China University of Petroleum (Edition of Natural Science)，2019，v 43,n 4,p69-74

论文题目：Casing wear prediction model in consideration of sinusoidal buckled drill string