Based on the DP31H well in Daniudi gas field of Ordos basin, which is a horizontal well with 2000m super-long radius, the difficulties in each section construction are analyzed with the countermeasures. In the drilling process, fast drilling and borehole curvature in the second section with φ311.2mm; bit selection, cutting bed and back pressure in the third super-long horizontal construction were encountered. By the rational technical measures, the construction was successfully finished.