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2013年7月23日,由中国石油渤海钻探工程公司钻井四公司70037队承钻的塔里木油田塔中区块中古5-H2井钻至井深7 810m顺利完钻。这口井垂深6 306.11m,最大井斜89°,实钻水平段长1 357.1m,井底水平位移1 655.57m,刷新了我国陆上水平井最深纪录。中古5-H2井是1口井身结构简化三开井,设计斜深7 800.03m,垂深6 305m,闭合位移1 645m,水平段长1 347.53m。这口井位于塔克拉玛干沙漠腹地,属典型“三高”井,地质条件复杂,施工难度大。渤海钻探钻井四公司以安全提速、技术提速、管理提速
On July 23, 2013, the Middle 5-H2 well drilled in Taizhong Block of Tarim Oilfield, drilled by No. 70037 unit of Drilling Company IV, China National Bohai Drilling Engineering Company, was successfully drilled to a well depth of 7 810m. The depth of this well was 6,306.11m with a maximum deviation of 89 °. The horizontal section of the actual drilling was 1 357.1m with a horizontal displacement of 1 655.57m at the bottom of the well, setting the deepest record of horizontal wells in China. The Middle 5-H2 well is a simplified well structure with three open wells. The designed depth is 7 800.03 m, depth is 6 305 m, closure displacement is 1 645 m and horizontal section is 1 347.53 m. This well is located in the hinterland of the Taklamakan Desert, which is a typical “Three-high” well with complicated geological conditions and difficult construction. Bohai drilling drilling company four companies to speed up security, speed technology, management speed