Poor reserve quality

high water-cut and high investment cost have become the bottleneck of developing Dongsheng Gas Field located in Ordos Basin. In this way

the star evaluation management model is put forward to enhance its production performance. It is aiming at maximizing reserve value and investment benefits through geology-engineering integration. In the process of its implementation

the well locations

well patterns

drilling

fracturing and production technologies are optimized comprehensively

then the optimizedinformation is employed to improve and instruct future planning

thus the iterative improvement is achieved from single well to the whole gas field. Finally

the internal rate of return is calculated to determine the implementation sequence for each well. On the base of intelligent gas field construction

the above achievements are reinforced by organically combining downhole management with ground coping facilities

then the higher level of integrated development of geological engineering is realized. The following main results have been achieved: ①The detailed reservoir description and evaluation methods are formed for complicated high water-cut reservoir

and the gas layer penetrating rate raises by 20.8 %. ②Hierarchical constraints system for well network optimization is established

and the reserve production rate increases by 28 %. ③The drilling technology with both borehole stability and leakage prevention being considered is innovated through the combination of logging and seismic technology

and a completion string with slim hole and narrow gap is optimized to cater its demand. After optimization

the drilling cycle is shorten by 51 %

and investment cut by 31 %. ④The “large displacement

short time and high sand ratio” fracturing method is implemented

with the vertical well output increased by 56 %

and horizontal well 39 %. ⑤The “multi-parameter quantitative identification

coupling of nozzle and pipe flow

foam drainage and gas recovery system and production and injection technology in the same well” is combined together to lower the utilization limit of gas saturation to 45 %. Ever since the 13th Five-Year Plan

the production indicators of Dongsheng Gas Field are continuously improved. Moreover

a quantitative

operative and evaluable geology-engineering integration development model

with actual value of promotion

is formed.