Abstract
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Article Information:
The Influence of Collar on Surge Pressure Caused by the Drill String Inertia Force Under Closed Pipe Condition
Jun Li, Shengyu Bi, Jun Zou and Gonghui Liu
Corresponding Author: Jun Li
Submitted: July 31, 2012
Accepted: September 08, 2012
Published: April 30, 2013 |
Abstract:
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The study of surge pressure is of significant importance for the safety of drilling process. However, the existing surge pressure models rarely take the impact of the collar into consideration and thus will inevitably affect the precision of the surge pressure calculation. In this paper, based on closed pipe condition, a steady-state calculation model for surge pressure caused by drill string inertia force is developed considering the presence of collar. In the end a case study is presented to demonstrate the importance of collar during the calculation of surge pressure.
Key words: Casing, closed pipe, collar, inertia force, surge pressure, ,
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Cite this Reference:
Jun Li, Shengyu Bi, Jun Zou and Gonghui Liu , . The Influence of Collar on Surge Pressure Caused by the Drill String Inertia Force Under Closed Pipe Condition. Research Journal of Applied Sciences, Engineering and Technology, (16): 4155-4157.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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