Study on Drilling Parameters Optimization of Aluminum Alloy-Steel Hybrid Drill Pipe
Volume 7, Issue 6, December 2019, Pages: 436-440
Received: Dec. 11, 2019;
Published: Dec. 12, 2019
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Ni Hongjian, School of Petroleum Engineering of China University of Petroleum, Qingdao, China
Tang Zhongmin, School of Petroleum Engineering of China University of Petroleum, Qingdao, China
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With the increasing number of wells with complex operating conditions, the requirements for oil exploration equipment and technology are higher than ever before. Aluminum alloy drill pipe gradually receives good graces because of its light weight, high strength to mass ratio and strong corrosion resistance. This paper calculates different drillstring combinations according to the same horizontal well. It is found that the hook load and total friction resistance of the aluminum alloy-steel drillstring combination are smallest in the horizontal well, and aluminum alloy-steel drillstring combination is the optimal design. This paper studies the dynamic characteristics of aluminum alloy drill pipe by nonlinear finite element method. The simulation results show that rotation speed has a great influence on the trajectory of the aluminum alloy drill string in the vertical section.When the rotation speed is large, the centrifugal force makes the drill string move close to the wall, and the wear of the drill string is intensified. Besides, The moving range of the rotating drill string in the stable inclined section is close to the lower right part of the wellbore. When the WOB is constant, the range and amplitude of the lateral vibration of the drill string in the X and Y directions become larger as the rotational speed increases.
Aluminum Alloy Drill Pipe, Horizontal Well, Motion Trail
To cite this article
Study on Drilling Parameters Optimization of Aluminum Alloy-Steel Hybrid Drill Pipe, Science Discovery.
Vol. 7, No. 6,
2019, pp. 436-440.