ScholarLens Back to search
2009•Chuanbo lixueRequires access

Coupled System Analysis for a Deepwater Drilling Riser

Yuanjiang Chang

Open publisher page 1 citations

Abstract

For a deepwater moored drilling system, the coupling effects between the mobile offshore drilling unit (MODU) and the slender structures (mooring lines and drilling riser) are of primary importance in prediction of the floater motions as well as the drilling riser response.In this paper,a fully coupled finite element (FE) model of the moored drilling system was established and used in the following non-linear time-domain analysis considering irregular wave frequency (WF) and low frequency (LF) environmental loading. The analysis indicates that the LF riser dynamics excited by LF floater motions are of crucial importance for the riser design.Traditional approach considering LF floater motions as a quasi-static effect is inaccurate for a deepwater drilling riser attached to a moored MODU.

About this research paper

What this paper is about

For a deepwater moored drilling system, the coupling effects between the mobile offshore drilling unit (MODU) and the slender structures (mooring lines and drilling riser) are of primary importance in prediction of the floater motions as well as the drilling riser response.In this paper,a fully coupled finite element (FE) model of the moored drilling system was established and used in the following non-linear time-domain analysis considering irregular wave frequency (WF) and low frequency (LF) environmental loading. The analysis indicates that the LF riser dynamics excited by LF floater motions are of crucial importance for the riser design.Traditional approach considering LF floater motions as a quasi-static effect is inaccurate for a deepwater drilling riser attached to a moored MODU.

Why it matters

OpenAlex reports 1 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

For a deepwater moored drilling system, the coupling effects between the mobile offshore drilling unit (MODU) and the slender structures (mooring lines and drilling riser) are of primary importance in prediction of the floater motions as well as the drilling riser response.In this paper,a fully coupled finite element (FE) model of the moored drilling system was established and used in the following non-linear time-domain analysis considering irregular wave frequency (WF) and low frequency (LF) environmental loading. The analysis indicates that the LF riser dynamics excited by LF floater motions are of crucial importance for the riser design.Traditional approach considering LF floater motions as a quasi-static effect is inaccurate for a deepwater drilling riser attached to a moored MODU.

Key concepts: Drilling riser, Deepwater drilling, Marine engineering, Drilling, Offshore drilling, Submarine pipeline, Mooring, Finite element method

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Coupled System Analysis for a Deepwater Drilling Riser — Research Paper | ScholarLens