Research and application status of geology-engineering integration

More and more practices of oil and gas field exploration and development indicate that geology-engineering integration is the only way to realize the benefit exploration and development of complex oil and gas reservoirs. In this paper, the research and application status of geology-engineering integration technology was summarized and its development process and implementation ideas were analysed. Domestic and foreign application cases were described. In addition, the research directions of geology-engineering integration were pointed out. It is indicated that geology-engineering integration has been practically applied in the North America and China’s Southwest Oil & Gasfield, Zhejiang Oilfield, Tarim Oilfield, Xinjiang Oilfield, Changqing Oilfield, Dagang Oilfield and Jilin Oilfield, and BHGE, Schlumberger and Halliburton have been actively cooperating with each oilfield to provide the services and software platforms for geology-engineering integration. After the implementation of geology-engineering integration in Changning Shale Gas Demonstration Area, the daily gas production is increased by 127%, the drilling rate is increased by 180%, the drilling cycle is shorted by 53.3% and all production performances of development wells exceed the expected indicators. As for domestic geology-engineering integration, it is in urgent to carry out the researches in the following aspects. First, form the unified idea of geology-engineering integration. Second, set up and improve the operation mechanism of geology-engineering integration. Third, strengthen the performance evaluation of geology-engineering integration. Fourth, speed up the technological breakthrough in the geology-engineering integrated development of shale gas. Fifth, strengthen the application of geomechanics in geology-engineering integration. Sixth, train inter-disciplinary talents in the field of geology-engineering integration.