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Envelopes for connected operation of the deepwater drilling riser
The common critical criterion and nonlinear search method were adopted for the study of connected operation envelopes of deepwater drilling riser and a riser-wellhead-conductor integral finite element model was established.
Yuanjiang Chang +2 more
exaly +5 more sources
For deepwater drilling riser system facing grounding risk in the South China Sea, a mechanical analysis model of deepwater drilling riser grounding accident was established.
Xiuquan Liu +2 more
exaly +4 more sources
Drift-off warning limits for deepwater drilling platform/riser coupling system
The drift-off dynamic model of deepwater drilling platform and riser coupling system was established. An analysis method on drift-off warning limits of deepwater drilling platform and riser coupling system was proposed, and a deepwater drilling platform ...
Xiuquan Liu, Yuanjiang Chang
exaly +4 more sources
Recoil Control of Deepwater-Drilling Riser with Optimal Guaranteed Cost H∞ Control
In deepwater-drilling engineering, it is necessary to disconnect the bottom equipment of the lower marine-riser package from the blowout preventer when encountering multi-hazard environmental factors.
Yue-Ting Sun +4 more
doaj +2 more sources
Effect Of Drill String Rotation On The Dynamic Response Of Drilling Risers [PDF]
The effect of the rotation of a drill string on the response of a drilling riser has been studied. A governing equation for the flexural response that incorporates the effect of the drill string rotation is developed from first principles, and the ...
I.E. Major, A. Big-Alabo, S. Odi-Owei
doaj +2 more sources
Research Progress on Recoil Analysis and Control Technology of Deepwater Drilling Risers
The deepwater drilling riser is a very important and vulnerable connection between an offshore platform and subsea wellhead. Under some certain complex marine environment and operating conditions, the offshore platform may drift beyond the safe ...
Yanbin Wang +3 more
doaj +1 more source
Ultra-Deepwater Riserless Mud Circulation with Dual Gradient Drilling [PDF]
Drilling deep holes in very deep water presents the offshore drilling community with major wellbore stability challenges that are typically mitigated through the circulation of dense drilling mud to prevent hole collapse and to remove drilling debris ...
Greg Myers
doaj +1 more source
Investigation of various pipe materials for riser operation in the arctic seas [PDF]
А riser, which is an offshore water separation column is the main difference between offshore drilling and onshore drilling. The idea of the research is to calculate the stressed-deformed state of a riser made of various materials to identify ...
Yangirov Farit +3 more
doaj +1 more source
Investigation of the mechanical response of a deep-water drilling riser to ocean currents and waves
The drilling riser is an important piece of equipment used to link the subsea wellhead with the drilling platform. Its operating environment is extremely complex because of the effects of ocean currents, which can cause riser overload, fatigue, leading ...
Liping Tang +4 more
doaj +1 more source
Interference Vibration Analysis of Drilling Riser-Production Riser Clusters in Deep Water
As waves and ocean currents flow through drilling risers or production risers, there will be strong interference between risers and nearby fluid, resulting in more complicated vibration characteristics than isolated riser or dual-riser system.
Tian Deqiang +6 more
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