Results 11 to 20 of about 547 (264)
Shanghai Jiaotong Daxue xuebao, 2023 A marine drilling riser at normal operation condition is required to disconnect the lower marine riser package (LMRP) and blow-out preventer (BOP) in case of severe weather. When the weather gets fine, it must reconnect the LMRP and the BOP. This process
ZHANG Chenyu, MENG Shuai
doaj +1 more source
Drilling Vessel Chikyu: Status, Capabilities, and Current Operati [PDF]
Scientific Drilling, 2006 The Deep Sea Drilling Vessel Chikyu is a state-of-the-art drilling platform that can reach geological targets previously inaccessible to scientifi c drilling.
Yoshi Kawamura +2 more
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Analysis on Managed Pressure Response Time and Its Influential Factors in Deepwater Drilling
Shiyou jixie, 2023 In order to ensure the safety and efficiency of managed pressure drilling technology in deepwater, the characteristics and influential factors of managed pressure drilling response time in deepwater drilling were studied.Regarding the wellbore annulus ...
Tian Ye +4 more
doaj
Dynamic Analysis of a Drillstring-Riser System Drilling in Deep Water
MATEC Web of Conferences, 2018 A mathematical model of a drillstring-riser system is developed to analyze the system dynamics when drilling in deep water. For the proposed model, a riser and a drillstring are combined as a pipe-in-pipe structure, along which the interactions between ...
Liao Maolin +4 more
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An intelligent recoil controller for riser system based on fuzzy control theory
International Journal of Naval Architecture and Ocean Engineering, 2022 Riser recoil control is a complicated nonlinear control problem. An intelligent control methodology is proposed to control the complicated riser recoil response based on fuzzy control theory. A dynamic nonlinear model of drilling riser/tensioner coupling
Xiuquan Liu +6 more
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Drilling Riser Model Test for Software Verification
Journal of Offshore Mechanics and Arctic Engineering, 2016 Marine drilling riser is subject to complicated environmental loads which include top motions due to mobile offshore drilling unit (MODU), wave loads, and current loads. Cyclic dynamic loads will cause severe fatigue accumulation along the drilling riser system, especially at the subsea wellhead (WH).
Yin, Decao +3 more
openaire +2 more sources
IODP Expedition 319, NanTroSEIZE Stage 2: First IODP Riser Drilling Operations and Observatory Installation Towards Understanding Subduction Zone Seismogenesis [PDF]
Scientific Drilling, 2010 The Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE) is a major drilling project designed to investigate fault mechanics and the seismogenic behavior of subduction zone plate boundaries.
Sean Toczko +6 more
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Shock and Vibration, 2020 Marine riser is a key equipment in offshore drilling operation, and failure of the riser can lead to drilling moratorium; in severe cases, it may cause oil and gas leaks.
Fengde Wang +4 more
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IODP Expedition 338: NanTroSEIZE Stage 3: NanTroSEIZE plate boundary deep riser 2 [PDF]
Scientific Drilling, 2014 The Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE) is designed to investigate fault mechanics and seismogenesis along a subduction megathrust, with objectives that include characterizing fault slip, strain accumulation, fault and wall rock ...
G. F. Moore +6 more
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Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading
Advanced Engineering Materials, EarlyView.The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley +1 more source