Well Wanwangdi-2 is a shale oil and gas geological survey well located in the Xuling sub-sag slope zone of Wangjiang Sag along the fold fault zone of the Lower Yangtze block with the design depth of 1600m and the completion depth 1632m. The purpose of drilling is to explore the gas-bearing properties of the shale in the Permian Dalong formation-Gufeng formation； and the regional stratigraphic sequence， the lithology， and the lithofacies development to obtain geological parameters. This paper introduces the drilling work of Well Wanwangdi-2， and describes the main drilling technology and technical measures. In view of the difficulties of mud-sand interbedding， unstable well walls， complex lithology and low core recovery rate， the wire-line coring tool and technology was improved with the drilling fluid system modified for sensitive formation and the drilling parameters optimized to increase drilling efficiency and ensure core recovery rate. The problems in the drilling process are also analyzed with improvement measures proposed to provide technical reference for drilling of similar small-diameter shale gas survey wells.