Application of geology-engineering integration in development of tight oil in Xinjiang Oilfield

doi:10.3969/j.issn.1672-7703.2017.01.003

Abstract

Abstract: In recent years, some exploration and early development tests of tight oil were satisfactorily carried out in Xinjiang Oilfield, and more practices and attempts were also implemented in technology and management. According to years of the tight oil development practices, it is found that tight oil reservoirs cannot be developed by conventional techniques due to the special reservoir properties. Instead, unconventional ideas, methods and technologies are required for unconventional reservoirs, and the model of geology-engineering integration is needed for ensuring the efficient exploration and development of such reservoirs. Accordingly, a set of practical methods was proposed after numerous practices in project management. Specifically, the core of geology-engineering integration is used in production projects. Based on various demands during different stages of project operation, the integration is followed in all steps. In this way, the composite benefits of tight oil development can be increased gradually. In 2015, based on the idea and procedure of geology-engineering integration, this set of methods was successfully applied in developing tight oil in the Mahu sag, Xinjiang Oilfield. For purpose of improving tight oil production, by means of seamless multi-discipline collaboration, combination of geological conditions and engineering technologies, and integration of management and technologies, dynamic decision-making was practically implemented in sweet-spot selection, assurance of reservoir drilling rate and optimal fracturing design, so as to promote the efficient and large-scale development of tight oil. Guided by the concept of “integration”, fine technical management was push forward, and the optimal control was realized in key links of production deployment and construction, uiming at better economic benefits. Moreover, a new model of engineering-technology service was worked out. By virtue of the engineeringtechnology service integration model, a more solid foundation was established for practical tight oil development in China onshore areas.

Key words: engineering-technology service integration, factory-like operation, fine technical management, Xinjiang Oilfield, geology-engineering integration, tight oil

CLC Number:

TE313

Zhang Jing, Luo Zhao, Xu Mingqiang, Jiang Hong, Chen Xianjiang, Wang Tengfei, Luo Hong. Application of geology-engineering integration in development of tight oil in Xinjiang Oilfield[J]. China Petroleum Exploration, 2017, 22(1): 12-20.

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