Drilling Speed-Up Technology of Well Kunye AHF in Baise Exploration Area of Jiangsu Oilfield

The formation in Nadu Formation of Baise exploration area is broken, which is easy to hydrate, expand and collapse, and the wellbore instability leads to long drilling cycle. In order to effectively reduce complex time and improve drilling speed, during the drilling of Well Kunye AHF, a series of technologies, such as oil-based drilling fluid system, personalized bit + high-efficiency screw + geosteering while drilling + enhanced parameter drilling, trajectory control technology and coring in fractured formation, were adopted to complete the construction of Well Kunye AHF safely and efficiently. The fastest penetration rate of actual drilling reached 15.05 m/h, which was 5.02 times higher than that of neighboring Well Kun 8-6HF. The successful application of this series of speed-up technologies provides an effective reference for excellent and fast drilling of shale oil follow-up wells in Baise area.