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Abstrait

CNOOC's Oil and Gas Well Drilling and Completion Technologies' Progress and ProspectsiBOMMA

Zong Shu

Offshore  oil painting and gas  product has come an important growth pole to  insure  public energy security. still, China's  coastal  oil painting and gas  product is lack of  crucial core technologies and weak in tool and  outfit foundation and can hardly support the optimized fast development of important fields. To  break these technological difficulties, China National Offshore Oil Corporation( CNOOC)  claimed on independent technological  invention and crushed a series of  crucial core technologies through theoretical  exploration and  crucial technology  exploration and test during the 13th Five- Time Plan. And the following  exploration results are  attained [1]. First, several  crucial technologies are broken through, including effective drilling and completion in the middle and deep layers of the Bohai Sea, offshore large- scale heavy  oil painting thermal recovery, deep- water  oil painting and gas field development, and high temperature and high pressure well drilling and completion in the South China Sea, unconventional  oil painting and gas stimulation, and  coastal  exigency deliverance. Domestic first  singly operated ultra deep water giant gas field,  videlicet “ Deepsea 1 ” is successfully put into  product, so that the  vault from 300 m to 1500 m of water depth and from  disquisition to development is realized. Second,  crucial tools and  outfit are developed,  similar as logging while drilling and rotary steering drilling system, deep- water drilling  face captain, aquatic  exigency killing device, and aquatic font Christmas tree, which promote the high- quality development of China's  coastal  oil painting assiduity. Eventually, some suggestions are proposed as follows. In the future, CNOOC shall strengthen independent technological  invention, quicken the pace to deepsea  oil painting and gas, and continue to  probe  crucial core technologies for  oil painting and gas reserves and  product increase(e.g.  nonstop localization of drilling and completion technologies,  outfit and accoutrements  in complex fields), amalgamated gas  product and test and green energy  metamorphosis(e.g. geothermal energy), so as to make lesser  benefactions to  insure  public energy security and  make a maritime power [2].