2011年3月16日,冀东油田公司最深风险探井——堡古2井Φ508 mm套管固井施工顺利完成。堡古2井是冀东油田部署在曹妃甸工业园区内的一口五开风险探井,设计井深5905 m,井身结构为五开潜山井,是冀东油田陆地滩海中井深最深、难度最大的一口风险探井。工程一开用直径660.4 mm钻头钻至353 m,直径508 mm套管下深350 m,是冀东油田目前大尺寸套管下入最深的一口井。 March 16, 2011, Jidong Oilfield Company, the deepest risk exploration wells - Fortu ancient Well Φ508 mm casing cementing well completed. Fort 2 ancient wells are Jidong oilfield deployed in Caofeidian Industrial Park, a five risk exploration wells, the design depth of 5905 m, well structure for the five open pit wells, Jidong Oilfield is the deepest depth of land beach, the most difficult one risk Exploration wells. The first drill with a diameter of 660.4 mm to 353 m and a depth of 508 mm under a 508 mm casing is the deepest well in the Jidong Oilfield.