Calculating Methods of the Oil Production for Areal Well Patterns Based on the Sensitivities of the Permeability and Pressure

5th Annual International Workshop on Materials Science and Engineering

Wu, Baofeng^1 ; Zheng, Xianbao^1

Exploration and Development Research Institute, Daqing Oilfield Company Ltd, Daqing

163712, China^1

关键词: Calculating methods;    Design and Development;    Extra low-permeability;    Index predictions;    Low permeability oil;    Oil production;    Oil reservoirs;    Pressure sensitivities;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/585/1/012117/pdf
DOI  :  10.1088/1757-899X/585/1/012117

来源: IOP

【 摘 要 】

Based on the characteristics of the low-permeability oil reservoirs and analyses of the laboratory expertments and investigation, the calculating methods for 4-spot, 5-spot and inverted 9-spot areal well patterns with the permeability and pressure sensitivity are deduced with the help of the methods of flow line integration and unit analysis. Comparing with M. Muskat method, the accuracy and reliability of this method are confirmed. The effects of the pressure-sensitivity on the productivity for the oil reservoirs with different permeabilities are researched. And moreover the influences of the pressure-sustained degree on the productivity of extra-low-permeability reservoirs are also figured out. The calculating methods for the production of areal well patterns based on the pressure sensitivity have provided effective ways for the productivity design and development index prediction.