Results 21 to 30 of about 1,357 (297)
Drilling Vessel Chikyu: Status, Capabilities, and Current Operati [PDF]
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
doaj +1 more source
Analysis on Managed Pressure Response Time and Its Influential Factors in Deepwater Drilling
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
An intelligent recoil controller for riser system based on fuzzy control theory
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
doaj +1 more source
IODP Expedition 319, NanTroSEIZE Stage 2: First IODP Riser Drilling Operations and Observatory Installation Towards Understanding Subduction Zone Seismogenesis [PDF]
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
doaj +3 more sources
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
doaj +1 more source
IODP Expedition 338: NanTroSEIZE Stage 3: NanTroSEIZE plate boundary deep riser 2 [PDF]
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
doaj +1 more source
<p>As part of the NanTroSEIZE program, operations during Integrated Ocean Drilling Program (IODP) Expedition 338 were planned to extend and case riser Hole C0002F, begun during IODP Expedition 326 in 2010, from 856 to 3600 meters below seafloor ...
Jurado Rodriguez, Maria +42 more
core +1 more source
Flow past a fixed and freely vibrating drilling riser system with auxiliaries in laminar flow [PDF]
Drilling risers used in oil and gas operations are subjected to external loads such as wave and current. One of the phenomena that arise from the external loads is the Vortex-Induced Vibration (VIV), which affects the performance of the riser due to ...
Musa, Mohd. Azlan +4 more
core +1 more source
<p>The Costa Rica Seismogenesis Project (CRISP) was designed to elucidate processes that control nucleation and seismic rupture of large earthquakes at erosional subduction zones. The CRISP study area is located offshore the Osa Peninsula where the
Burkett, Ashley +33 more
core +1 more source
Proceedings of the Integrated Ocean Drilling Program 337: Deep Coalbed Biosphere off Shimokita
<p>Integrated Ocean Drilling Program (IODP) Expedition 337 was the first expedition dedicated to subseafloor microbiology that used riser drilling technology.
Lever, Mark A. +29 more
core +1 more source

