Affiliation:
1. School of Petroleum Engineering, Xi’an Shiyou University, Xi’an, China
Abstract
A model suitable for evaluating a tight sandstone reservoir is established. The model includes two oil-water replacement modes: capillary force mode and osmotic pressure mode. The relationship between oil-water displacement rate and dimensionless time under different parameters is drawn considering the influence of capillary force, osmotic pressure, production pressure difference, and starting pressure gradient. Results indicate that the higher the relative permeability of the water phase, the lower the relative permeability of the oil phase, the smaller the oil-water viscosity ratio, and the higher the oil-water replacement rate. The relative permeability of the water phase also affects the infiltration stabilization time. Low salinity fracturing fluid infiltration helps to improve the oil-water replacement rate.
Funder
National Natural Science Foundation of China
Subject
General Earth and Planetary Sciences
Reference22 articles.
1. Forced and spontaneous imbibition experiments for quantifying surfactant efficiency in tight shales;B. Roychaudhuri
2. An experimental study of spontaneous imbibition in Horn River Shales;K. Makhanov
3. Volume transformation experiment and multi-scale simulation of;L. Shuai;Oil drilling technology considering imbibition and displacement,2016
4. Static reservoir imbibition experiment;P. Yu;Daqing petroleum geology and development,2016
5. Skjold Field, Danish North Sea: Early Evaluations of Oil Recovery Through Water Imbibition in a Fractured Reservoir
Cited by
6 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献