Results 71 to 80 of about 857 (182)

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  

Dual-Gradient Drilling and Riserless Mud Recovery Technology: A Review of Principles, Progress, and Challenges

open access: yesJournal of Marine Science and Engineering
Deepwater drilling operations face critical challenges including narrow pore-fracture pressure windows, wellbore instability, and environmental concerns from drilling discharge.
Rongrong Qi   +6 more
doaj   +1 more source

Activity of semisubmersible drilling rig in deepwater.

open access: yesJournal of the Japanese Association for Petroleum Technology, 1995
An analysis of worldwide offshore drilling activities shows a clear trend towards deepwater. Advances in deepwater petroleum production are also continuing, with primary areas of activity currently in the Gulf of Mexico and offshore Brazil. As well, the Voring Plateau in offshore Norway and the West Shetlands show promise as the next deepwater ...
Nakamura, Masahiro   +3 more
openaire   +2 more sources

Virtual Driller’s Operating System for Deepwater Drilling Based on Virtual Reality

open access: yesShiyou jixie, 2016
During domestic development of automated drilling equipment,if the control system software for each device shows error in the protection logic and trajectory solver,safety incident of device could be easily raised in joint debugging test.To address the ...
Lin Kang   +6 more
doaj  

Analysis of Drill String Coupled Vibration and Drilling Fluid Pressure in Downhole Section

open access: yesShiyou jixie, 2021
To address the problem of nonlinear coupled vibration of the drill string in the axial, lateral and torsional direction in the downhole section of deepwater drilling, a mathematical model of nonlinear coupled vibration of the drill string in the downhole
Liu Jing   +5 more
doaj  

Development of Domestic and Overseas Liner Drilling Technology

open access: yesShiyou jixie, 2018
Liner drilling can effectively address the drilling problems such as narrow drilling boundary, tight hole, well loss and wellbore instability, and reduce drilling time and operating cost, which is especially suitable for deepwater drilling and depleted ...
Wu Jinxia, Zhang Rui
doaj  

Petroleum exploration and production in Brazil: From onshore to ultra-deepwaters

open access: yesPetroleum Exploration and Development
The Santos Basin in Brazil has witnessed significant oil and gas discoveries in deepwater pre-salt since the 21st century. Currently, the waters in eastern Brazil stand out as a hot area of deepwater exploration and production worldwide.
Sylvia M C ANJOS   +2 more
doaj   +1 more source

Deepwater drilling problems

open access: yes, 2009
Master's thesis in Petroleum ...
openaire   +1 more source

Advances and Prospects of China's Premium Deepwater Drilling and Production Equipment

open access: yesShiyou jixie
China is now witnessing vigorous offshore exploration and development, corresponding to an increasing demand for localized offshore equipment. To achieve the goal of high-quality development of premium offshore drilling and production equipment in China,
Wang Yaofeng   +6 more
doaj  

Research and Application of Ridged Diamond Element Bit

open access: yesShiyou jixie, 2018
To address the problems of cylindrical PDC cutters like thermal wear, impact damage and balling and the required high WOB for conical cutters, the ridged diamond element drill bit technology is studied.
Feng Songlin   +3 more
doaj  

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