Chinese oil network news in August 11th, Bohai drilling drilling wells in Dagang Oilfield the deepest, the largest displacement evaluation well - Zhang Hai 17101 wells successfully pass the wells, lay the foundation for the Chenghai No. 2 Island late exploration and development, won the high praise of Dagang oilfield.
Bohai drilling for oil reserves and production increase adhering to good service, continuously enhance the core competitiveness of the enterprise concept, always required by Party A as the standard, strengthen communication, to ensure the quality of the completion of difficult wells construction.
Zhang Hai 17101 well is a large displacement evaluation well designed with a depth of 5789 meters and a maximum displacement of 4281.16 meters. After receiving the construction task, Bohai drilling third drilling company in Chenghai block 33 in Guantao formation, Shahe Street Group easy sloughing, steady inclined section Changyi sticking to the risk, well structure and well trajectory optimization, effectively solve the large displacement wells are friction torque, track control difficulty and the wall is easy to instability, long openhole casing, difficult hole cleaning requirements and other technical difficulties.
Responsible for the construction of the 70152 drilling teams using steerable drilling system control of well trajectory and ensure smooth trajectory smooth, effectively reducing the well resistance and rotary torque, reduce the accident, to ensure the safety of construction.
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