Dilution-based dual-gradient drilling (DGD) reduces casing strings and drilling costs while increasing hole size at total depth by injecting mud down an artificially-created annulus with a different ...
Chevron is about to put the first deepwater drillship designed with the capacity to perform ‘dual gradient drilling’ to work. The ship is a Samsung 12000 design capable of operating in 12,000 ft ...
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Gradient-doped crystal design enhances laser performance in dual-end pumping configuration
Recently, the research groups led by Prof. Zhang Qingli and Prof. Jiang Haihe from Hefei institutes of Physical Science (HFIPS) of Chinese Academy of Sciences (CAS) have jointly developed a ...
Texaco Inc. is drilling what it says is the first dual-gradient well using a subsea-mudlift drilling system developed by a joint industry project led by Conoco Inc. The Shasta field No. 8 is in 910 ft ...
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