Abstract: The Shunbei oil and gas field in the Tarim Basin has a burial depth of 7300 to 9000 m. Fracture-cavity reservoirs develops along high and steep strike-slip fault zones which is formed by the fragmentation of brittle strata. The internal heterogeneity of the fault fracture zones is extremely strong, and the fluid properties vary greatly. Facing this type of ultra-deep and complex fault-controlled fracture-cavity oil and gas reservoirs, efficient well formation faces world-class challenges. The cost of a single well is high, and it is difficult to develop profitably. There is no ready-made experience and technology to learn from. Taking project management as the starting point, Shunbei has established unique "five-for-five improvement" geological engineering integrated management model, and has innovatively formed the seven-element key technologies of "fewer wells and higher production". In recent years, the integration of few wells and high production geological engineering has achieved a qualitative leap, and two hundred-million-ton resource positions in the No.four and No.eight fault zones have been implemented, adding 153 million tons of proven oil and 162 billion cubic meters of natural gas. A total of 20 wells have been deployed in the No.four fault zone, and a production capacity of 1.3 million tons of oil equivalent has been built in two years. Compared with the No.1 fault zone developed in 2016, the success rate of high production wells has increased by 35%, the productivity of single wells has increased by 316%, and the proven reserves discovered by single wells have increased by 55%. Efficient exploration and profitable development have been achieved, and its experience has reference significance for the development of other similar types of reservoirs.

Key words: Shunbei oil and gas field, fault-controlled fracture-cavity oil and gas reservoir, integration of geology and engineering, few wells and high production