Results 51 to 60 of about 311 (133)

Dynamic Seal Test of Deepwater Drilling Riser Telescopic Joint

open access: yesShiyou jixie, 2018
According to the main function and working conditions of the deepwater drilling riser telescopic joint, the dynamic sealing test was conducted using the 1:3 drilling riser telescopic joint prototype.
Zhang Caiying   +5 more
doaj  

Information Design in Common Value Auction With Moral Hazard: Application to OCS Leasing Auctions

open access: yesEconometrica, Volume 94, Issue 4, Page 1171-1208, July 2026.
This paper explores the impact of information design on the auctioneer's revenue in the U.S. offshore oil/gas lease auctions where, post‐auction, the winner decides whether to explore the auctioned tract and must pay the government a royalty on its production value.
Anh Nguyen
wiley   +1 more source

Improved Constraints on Andean Glaciations From the Lake Titicaca Continental Drilling Record

open access: yesPaleoceanography 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

The Impact of Acquisition Intensity on ESG Performance

open access: yesBusiness Strategy and the Environment, Volume 35, Issue 4, Page 4861-4875, May 2026.
ABSTRACT This study investigates the impact of Acquisition Intensity on ESG performance using a panel of 1,736 US‐listed companies from 2002 to 2023. Employing a robust OLS framework, we assess both Value‐Based and Volume‐Based Acquisition Intensity against overall ESG scores and their environmental, social, and governance pillars, controlling for firm
Ugbede Amedu   +2 more
wiley   +1 more source

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

open access: yesShiyou 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   +5 more
doaj  

Recent deepwater drilling technologies

open access: yesJournal 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

Element concentrations in tissues reveal spatial structure of Atlantic walrus management stocks

open access: yesThe Journal of Wildlife Management, Volume 90, Issue 4, May 2026.
Differences in tissue element concentrations confirm geographic differentiation between 2 of Canada's walrus management stocks but reveal additional spatial structure within the largest stock that may have management implications. Abstract Ensuring harvested animal populations are managed at appropriate scales requires an understanding of underlying ...
Alexander M. Jardine   +3 more
wiley   +1 more source

Location selection of deepwater relief wells in South China Sea

open access: yesPetroleum Exploration and Development, 2016
By analyzing affecting factors on deepwater relief well location selection, and focusing on the regional deepwater operating environment in South China Sea and different rig positioning types, a calculation method for minimum safety distance between ...
Weiqing ZHAO   +3 more
doaj   +1 more source

Air Contamination and Mass Fractionation Correction in Groundwater From a Hydrocarbon System

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract Noble gases are valuable geochemical tracers for investigating subsurface fluid origins and migration because of their chemical inertness and source‐specific isotopic ratios. However, subsurface water samples often show noble gas patterns that differ from air‐saturated water references, with excesses or depletions that complicate ...
S. Diniz   +5 more
wiley   +1 more source

Analysis of Fatigue Monitoring of Deepwater Drilling Riser

open access: yesShiyou 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   +5 more
doaj  

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