Guangjin 6-2HF is a long extension horizontal well of Chuanxi gas production plant, which was first finished by using geo-steering drilling technique in Penglaizhen gas reservoirs. The well trajectory was accurately controlled by geo-steering drilling technique and comprehensive logging technique with BHA optimization, target A landed accurately. The BHA with single bend screw and double-stabilizer had a good steady inclination effect in Penglaizhen gas reservoirs. The total footage of the horizontal section of this well was 980.84 m, including 21.5m sliding drilling footage and 959.34m complex drilling footage. The complex drilling ratio was 97.8%, which greatly improved the drilling efficiency. The successful experience of this well provided a good basis for the application of geo-steering drilling technique in Chuanxi area.