Application of Excellent and Fast Drilling Technology in Sulige Gas Field

In consideration of a series of problems such as low drilling speed,drilling tool failure,wellbore collapse and lose circulation,bits and drilling parameters,optimization applications,anti-oblique horizontal well technology,drilling fluid system were optimized and deployed.The prevention of drill tool failure and its post-processing,as well as leak-preventinbg technology were illustrated in detail. Therefore,designed well depth is achieved with only a single bit during the 2-spud-in due to the drill speed raise is attained by optimizing the bit,trip time and drill time are reduced.In connection with the optimizing the drilling fluid formula,drilling risk is reduced as well by drill failure prevention and treatment measures.