Results 51 to 60 of about 189,897 (216)

Environmental Impacts of Synthetic Based Drilling Fluids [PDF]

, 2000
This report covers the observed environmental impacts of synthetic based drilling fluids (SBF) that are used in deepwater oil drilling. It is found that SBF tends to accumulate in the sediment which tends to exhibit low toxicity and effects the living ...
Ayers, R.C., Jr., McKelvie, S., Neff, J. M.   +2 more
core  

Adaptive Responses of Tropical Crops: A Multi‐Scale Omics Integrated Perspective

Advanced Science, Volume 13, Issue 47, 24 August 2026.
Tropical crops integrate genomic, morphological, physiological, and ecological adaptations to thrive under extreme and variable environments. This review highlights how natural selection, domestication, and breeding shape stress resilience, resource‐use strategies, and productivity in sugarcane, banana, cassava, rubber and oil palm, offering new routes
Peilin Wang, Chenhui Li, Dongjiao Wang, Qibin Wu, Zhen Zeng, Huiming Guo, Han Cheng, Songbi Chen, Hongxing Cao, Hongmei Cheng, Jianghui Xie, Youxiong Que   +11 more
wiley   +1 more source

Coastal Marine Carbon and Air‐Sea Fluxes Quantified From pH Sensors on an Extended AUV Deployment

Journal of Geophysical Research: Oceans, Volume 131, Issue 8, August 2026.
Abstract For the first time, the Autosub Long Range (ALR) completed a fully autonomous, long‐distance (2,000 km) scientific mission, delivering new insight into coastal carbonate dynamics and air‐sea CO2 ${\text{CO}}_{2}$ fluxes. Equipped with a suite of oceanographic sensors, including a Lab‐on‐Chip (LOC) pH sensor and a Sea‐Bird SeaFET pH sensor, the
Emily M. Hammermeister, Cathy Wimart‐Rousseau, Stathys Papadimitriou, Pablo Trucco‐Pignata, Edward Chaney, Robert Templeton, Alexander B. Phillips, Socratis Loucaides   +7 more
wiley   +1 more source

Development and Application of the Modularized Ground Test Equipment System for Deep Water Test

Shiyou jixie, 2016
The ground test processes of deepwater testing operation have the issues like high cost,large space needed on drilling platform,lowering the drilling efficiency.Through deepwater testing process modularization design and independent research and ...
Jin Shukai, Zhang Chong, Meng Wenbo, Wang Erjun, Tian Xiangdong, Wei Jianfei   +5 more
doaj  

Fluid Flow Simulation for Predicting Bottomhole Pressure That Considers Wellbore Storage Effects Under Shut-In Conditions in Deepwater Drilling

Journal of Marine Science and Engineering
Under shut-in conditions in deepwater drilling, the gas invading the bottomhole ascends along the wellbore and accumulates at the wellhead, forming a high-pressure trap, challenging wellbore pressure prediction and control.
Yanli Guo, Yonghai Gao, Qingtao Gong, Lifen Hu, Yongyi Jiang, Baojiang Sun   +5 more
doaj   +1 more source

Recent deepwater drilling technologies

Journal of the Japanese Association for Petroleum Technology, 2009
Deepwater drilling technology study group in the Drilling Technology Committee of JAPT is participated by a number of members and positively performing its activities including information research, internal studies and publicity of those study results via JAPT web-site.
openaire   +2 more sources

Riverine Biogeochemical Exports From Major Watersheds to the Northwest Patagonian Estuarine Network

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 8, August 2026.
Abstract River discharge considerably influences marine ecosystems through hydrological and biogeochemical drivers. Measuring baseline variability of riverine inputs, and their relation to anthropogenic land‐use impacts and global climate stressors affecting watersheds is therefore crucial for managing coastal marine ecosystems.
Sage Fox, Jorge León‐Muñoz, Brian Reid, Anna Astorga‐Roine, Rodrigo Aguayo, Paulo Moreno‐Meynard, Lydia Blanchet, David E. Butman   +7 more
wiley   +1 more source

Understanding the Costs and Benefits of Deepwater Oil Drilling Regulation [PDF]

The purpose of this paper is to provide a conceptual framework for understanding how analysis of costs and benefits might be incorporated into an assessment of regulatory policies affecting deepwater drilling.
Cohen, Mark A., Parry, Ian W.H., Krupnick, Alan, Campbell, Sarah   +3 more
core  

An experimental approach to assess the combined effects of multiple stressors on a large vertebrate species

Conservation Biology, Volume 40, Issue 4, August 2026.
Abstract The design of experiments to investigate the combined effects of multiple stressors requires exposing target organisms to multiple combinations of stressor doses. Concurrent manipulation of stressors is often infeasible with wildlife, but long‐lasting health effects allow individual health to be used as an integrator of prior stressor exposure.
Enrico Pirotta, Catriona M. Harris, Lori H. Schwacke, Len Thomas, Jason B. Allen, Aaron A. Barleycorn, Marco Casoli, Jonathan Crossman, Laura Aichinger Dias, Laura Engleby, Erin LaBrecque, Jenny A. Litz, Katherine A. McHugh, Patrick J. O. Miller, Michael J. Moore, Theoni Photopoulou, Brian M. Quigley, Cynthia R. Smith, Brandon L. Southall, Todd R. Speakman, Ryan Takeshita, Christina N. Toms, Randall S. Wells, Eric S. Zolman, Peter L. Tyack   +24 more
wiley   +1 more source

Analysis of Fatigue Monitoring of Deepwater Drilling Riser

Shiyou jixie, 2017
The riser is the key equipment for deepwater drilling, which is prone to fatigue damage in harsh deepwater environment, so it is very important to monitor the fatigue of deepwater riser.
Li Qingpei, Su Kanhua, Han Yaokun, Luo Huilan, Zhao Ziyuan, Li Nan   +5 more
doaj