Results 61 to 70 of about 861 (180)

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

Stochastic Facies Modeling of the Lower‐Burdekin Delta Aquifer Based on Lithological Interpretation From Legacy Boreholes

Water Resources Research, Volume 62, Issue 4, April 2026.
Abstract The spatial heterogeneity of aquifer properties plays an important role in the movement of groundwater and contaminants. The characterization of heterogeneity from field observations is often needed to develop groundwater models used to inform management decisions.
Guillaume Pirot, Dylan J. Irvine, S. Cristina Solórzano‐Rivas, Adrian D. Werner   +3 more
wiley   +1 more source

Encapsulating Textiles with Dynamic Covalent Networks for Sustainable and Efficient Oil Spill Cleanup

Advanced Science, Volume 13, Issue 13, 3 March 2026.
By encapsulating industrially relevant fabrics with dynamic imine networks, we show that the resulting composites exhibit exceptional oil absorbtion capability and chemical recyclability. It is poised for sustainable oil spill cleanup. ABSTRACT The development of high‐performance sorbents for oil spill remediation is highly desirable, which now calls ...
Changyi You, Ping Yu, Haiyue Wang, Qirui Huang, Wei Hong, Cai Liu, Qinchao Sun, Yan Wang, Youwei Ma, Zuming Hu   +9 more
wiley   +1 more source

Salt-Resistant Lubricant for Deep Water Drilling Fluids

Zuanjingye yu wanjingye
In deepwater drilling, drilling fluids are affected by seawater, highly mineralized brine, and polyvalent metal ions. Conventional lubricants such as mineral oils, vegetable oils, and fatty acids often exhibit poor dispersion and incompatibility in high ...
Xiaodong LIU, Yongle MA, Tao LIU, Yong ZHANG, Qingyong LI, Ningzi LUO   +5 more
doaj   +1 more source

Prediction and risk assessment of natural gas hydrate formation in deepwater wellbores

You-qi chuyun, 2020
Hydrate formed in the wellbore during deepwater shallow drilling will affect the operation safety, so it is necessary to predict and analyze the hydrate formation range and degree in the wellbore annulus.
Jingyi SHI, Jianchun FAN, Shengnan WU, Lei LI   +3 more
doaj   +1 more source

Saving the Planet, Saving the Team, and Shouting Down the Messenger: The Relationships Among Narcissism Subtypes and Misreporting of Emissions

Corporate Social Responsibility and Environmental Management, Volume 33, Issue 2, Page 2413-2431, March 2026.
ABSTRACT This study examines how three subtypes of narcissism—communal, antagonistic, and collective—relate to sustainability team members' willingness to misreport greenhouse gas (GHG) emissions. Using survey‐based online experiments with experienced professionals from the United States and United Kingdom, we assess whether narcissistic traits predict
Eric N. Johnson, Matthias Sohn
wiley   +1 more source

Mechanical Analysis of Deepwater Drilling Riser During Inter-Well Towage in Batch Drilling and Completion Operations: A Case Study from Stabroek Block, Guyana

Journal of Marine Science and Engineering
In deepwater oil and gas development, conventional well-by-well drilling and completion involve repeated equipment deployment, resulting in low efficiency.
Lu Guo, Chao Fu, Ying Zhao, Jin Yang, Lei Li, Haoyu Wang, Li He   +6 more
doaj   +1 more source

Interference analysis and operability envelopes design for deepwater parallel strings

Oil & Gas Science and Technology, 2019
Dual derrick operations are widely used for field development during offshore drilling. During this process, complex operations and complicated hydrodynamic interaction may contribute to the interference collisions of parallel strings.
Zhu Jingyu, Liu Kang, Chen Guoming, Zhu Gaogeng   +3 more
doaj   +1 more source

Study on Drill String Fatigue Life in Deepwater Drilling

Shiyou jixie, 2016
Dynamic response of the deepwater drilling platform increases alternating loads of the drilling string.As a consequence,the calculation of drill string fatigue life becomes more complicated.By using the numerical simulation method,a method for studying ...
Wang Jiajia, Chen Jianmin
doaj