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2010•Oil Drilling & Production TechnologyRequires access

Hydraulics calculation of deepwater riserless mud recovery drilling

Jie Liu

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Abstract

In order to overcome the problems encountered in the process of deepwater drilling,the AGR Subsea Company proposed the Riserless Mud Recovery(RMR) drilling system.Ocean riser is eliminated in this system,mud and cuttings are pumped to drill platform with minor diameter return line.Because RMR is a new technology and it needs correct hydraulic computational theory and method urgently.On the basis of the operating condition and characters of RMR system,developed hydraulic computational formula of RMR system and compiled hydraulic software,gave an example and compared with the data of literature,verified the correctness of the calculation formulas and procedures.

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What this paper is about

In order to overcome the problems encountered in the process of deepwater drilling,the AGR Subsea Company proposed the Riserless Mud Recovery(RMR) drilling system.Ocean riser is eliminated in this system,mud and cuttings are pumped to drill platform with minor diameter return line.Because RMR is a new technology and it needs correct hydraulic computational theory and method urgently.On the basis of the operating condition and characters of RMR system,developed hydraulic computational formula of RMR system and compiled hydraulic software,gave an example and compared with the data of literature,verified the correctness of the calculation formulas and procedures.

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Available abstract

In order to overcome the problems encountered in the process of deepwater drilling,the AGR Subsea Company proposed the Riserless Mud Recovery(RMR) drilling system.Ocean riser is eliminated in this system,mud and cuttings are pumped to drill platform with minor diameter return line.Because RMR is a new technology and it needs correct hydraulic computational theory and method urgently.On the basis of the operating condition and characters of RMR system,developed hydraulic computational formula of RMR system and compiled hydraulic software,gave an example and compared with the data of literature,verified the correctness of the calculation formulas and procedures.

Key concepts: Subsea, Deepwater drilling, Drilling, Petroleum engineering, Marine engineering, Correctness, Hydraulics, Drilling riser

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