Influence Factors Analysis of Tight Oil EUR Evaluation

1 Introduction The factors that relate to EUR estimation are analyzed from six aspects of decline model combination, economic production, production period, development program, geology and engineering. In this paper, the correlation and coupling between EUR and related factors are further analyzed, and these factors include declined model selection, transition-point of different decline curves, production period, initial maximum production rate, fracturing times and geological key factors （source rock and reservoir）.