Results 81 to 90 of about 180,798 (213)

Proceedings of the Integrated Ocean Drilling Program 338: Stage 3: NanTroSEIZE Plate Boundary Deep Riser 2

open access: yes, 2014
<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

Salt-Resistant Lubricant for Deep Water Drilling Fluids

open access: yesZuanjingye 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   +5 more
doaj   +1 more source

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

open access: yesYou-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   +3 more
doaj   +1 more source

Late Eocene to Early Oligocene (36–26 Ma) Rock Magnetism and Magnetostratigraphy of IODP Site U1553, Southwestern Pacific: Defying the Challenges of Carbonate Dilution and Reductive Diagenesis

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.
Abstract The late Eocene to early Oligocene is an intriguing Paleogene period in which the Earth climate state changed from Warmhouse to Coolhouse. Accurate age models are essential for investigating these climate transitions. The southwestern Pacific International Ocean Discovery Program (IODP) Site U1553, with its almost complete succession of the ...
Yang Zhang   +5 more
wiley   +1 more source

Study of the local forces along a drill edge – comparison of two methodologies [PDF]

open access: yes, 2013
In aerospace applications, drilling is one of the most common operations. However, this machining stays complex and expensive, especially in hard to cut materials. Because of the closed aspect of the operation, the measure or evaluation of the phenomenon
M'SAOUBI, Rachid   +4 more
core  

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

open access: yesJournal 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   +6 more
doaj   +1 more source

Interference analysis and operability envelopes design for deepwater parallel strings

open access: yesOil & 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   +3 more
doaj   +1 more source

Precursor Analysis for Offshore Oil and Gas Drilling: From Prescriptive to Risk-Informed Regulation [PDF]

open access: yes
The Oil Spill Commission’s chartered mission—to “develop options to guard against … any oil spills associated with offshore drilling in the future” (National Commission 2010)—presents a major challenge: how to reduce the risk of low-frequency oil spill ...
Cooke, Roger M.   +2 more
core  

Study on Drill String Fatigue Life in Deepwater Drilling

open access: yesShiyou 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  

Texas deepwater port: The Texas offshore crude oil unloading facility.

open access: yes, 1979
16 p.This brochure will acquaint you with the deepwater oil port to be built off the coast of Texas. The port is obviously not the answer to our nation's evergy problems, but it will provide a technically proven facility for offloading supertankers ...
Texas Deepwater Port Authority.
core  

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