Results 71 to 80 of about 189,897 (216)
Improved Constraints on Andean Glaciations From the Lake Titicaca Continental Drilling Record
Paleoceanography and Paleoclimatology, Volume 41, Issue 6, June 2026.Abstract Long sedimentary records from tropical lakes provide crucial archives for reconstructing the timing and extent of tropical alpine glaciations, yet robust chronologies beyond the radiocarbon limit (ca. 50 ka) remain scarce. Here, we refine the ca. 350 kyr chronology for Lake Titicaca (Peru‐Bolivia) using radiocarbon dating, optically stimulated
Victoria L. Todd +7 more
wiley +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 +3 more
doaj +1 more source
Precursor Analysis for Offshore Oil and Gas Drilling: From Prescriptive to Risk-Informed Regulation [PDF]
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
Real – Time Geomechanics: Applications to Deepwater Drilling
, 2010 Lithologies under deepwater conditions usually show relatively reduced effective stress, due to the reduced lithostatic column. This translates into relatively narrow mud weight windows, driven mainly by shear failure or pore pressure in overpressured ...
C.. Liu +3 more
core +1 more source
Journal of Marine Science and EngineeringIn 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
A Temperature-Sensitive Polymeric Rheology Modifier Used in Water-Based Drilling Fluid for Deepwater Drilling. [PDF]
Gels, 2022 Wang Z +7 more
europepmc +1 more source
Texas deepwater port: The Texas offshore crude oil unloading facility.
, 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
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
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 +3 more
doaj +1 more source
, 2012 Closed-loop circulation drilling (CLCD) systems provide an increasingly viable alternative to open-to-the-atmosphere conventional drilling systems by emphasising the use of closed and pressurisable systems to allow a scalable approach that produces a ...
Julmar Shaun Sadicon Toralde +2 more
core +1 more source