The Rapid Quantitative Description of the Remaining Oil

Jiyu LIU, Mingxi PAN, Wei DONG, Haili YOU


At the late development stage of an oilfield, the distribution and potential evaluation of remaining oil is the key to comprehensive adjustment. Only if the location and quantity of the remaining oil is clear, can the targeted adjustment measures be made. Therefore, the quantitative description of remaining oil has become a significant issue to be solved in the middle-late period of oilfield development. In this paper, based on the concept of remaining oil, a new calculation principle of remaining geological reserves is determined - the difference between geological reserves and the cumulative oil production. The quantitative description of remaining geological reserves is refined into the single sand body. Moreover, based on the development condition of the study area, the remaining geological reserves distribution is described in phases. The new method is practically applied in a study area, of which the result is compared with the numerical simulation, and the precision is high. This method has good accuracy, can quickly quantitatively describe remaining oil distribution, and also has high practical value.


Geological reserves; Remaining geological reserves; Single sand body; Infilling adjustment

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