Open Access

ARTICLE

On Improving the Accuracy of Prediction of the Down-hole Drag & Torque in Extended Reach Drilling (ERD)

Deli Gao^1,2, Lianzhong Sun^1,3, Hongshu Wei⁴, Shunwen Wang⁴

1 Key Lab of Petroleum Engineering in the Ministry of Education, China University of Petroleum, Beijing 102249, China.
2 Corresponding author: Deli GAO. E-Mail: gaodeli@cup.edu.cn
3 Sinopec Research Institute of Petroleum Engineering, Beijing 100101, China.
4 CNOOC China Limited-Shenzhen, Shenzhen 518067, China.