The world's total investment in deep- sea oil & gas exploration and development is expected to reach 20 billion in 2010, an increase of 43% over 2005, and the corresponding drilling expenditure will surge from 8.43 billion dollars in 2005 to 16.1 billion.
A presentation of detailed geological evidence is included in the Initial Reports of the Deep Sea Drilling Projects cruise to the Mediterranean, only a brief summary of our arguments has been given in this article.
Deep Sea Drilling Project Leg 96 results suggest that, during initial relative lowering of sea level, the canyon and upper fan channel were formed; excavated fine-grained slope sediments may have formed a debris flow deposit base for the fanlobe.
Seismic profiles at Deep Sea Drilling Project Site 603 show that they have migrated "upcurrent" at a steadily decreasing rate, until a standing wave phase was established in the Quaternary.
This paper summaries the new concept of drilling machine configuration on deepwater drilling platform,and analyzes the key equipment configuration of drilling machine,such as drilling drawwork,top drive,mud pump etc.
Global investment in deep-sea oil & gas exploration and development has expanded over recent years, with the Gulf of Mexico and off-shore West Africa and Brazil surfacing as new destinations for investment. And new deep-sea areas rich in oil and gas are being discovered off Asia and Australia. The total investment in offshore oil & gas exploration and development climbed from 69 billion dollars in 2001 to approximately 90 billion in 2005, with deep-sea increasing from 9.2 to 14 billion. The robust increase ...
To overcome problems associated with deepwater drilling,a new technology known as "dual gradient drilling(DGD)" has been introduced.Several new approaches to the deepwater dual gradient drilling were developed,including subsea mudlift drilling,riserless drilling,and dual density drilling.The research and application of some joint industry projects were reviewed,such as Conoco/Hydril subsea mudlift drilling system,Shell subsea pumping system,Baker/Transocean DeepVision pump system,MTI hollow sphere dual grad...