Application note:
Recovery factor is an important indicator to measure the level of oilfield development. It refers to the ratio of the amount of oil that can be recovered from a reservoir to the amount of geological reserves under certain technological conditions within a certain economic limit.
The level of recovery is related to many factors, not only related to the natural conditions such as reservoir lithology, physical properties, heterogeneity, fluid properties and driving type, but also to the development system (ie development plan) used in the development of oil fields. related. The world has developed four technical series of enhanced oil recovery, namely chemical methods, gas flooding, heat and microbial oil recovery.
Most of the remaining oil reserves are concentrated in high-water-containing, low-permeability, heavy oil, high-temperature and high-salt reservoirs, and heterogeneous carbonate fracture cavern reservoirs. The demand for further enhanced oil recovery cannot be met, and the rapid development of the national economy has continuously increased the demand for petroleum energy. Therefore, understanding the mechanism of action of the displacement agent is to improve the efficiency of oil displacement and expand the volume of the volume to play an important role in further enhancing oil recovery, and the development of new economically effective displacement agents is imperative.
NMR technology can be used to visually show the distribution of fluids during core flooding, which is of great significance for revealing the mechanism of action of the displacement agent.
Nuclear magnetic resonance application experiment:
1. Gas flooding experiment - magnetic resonance imaging and analysis;
2. Gas flooding experiment - magnetic resonance imaging and analysis;
3. Water flooding experiment - magnetic resonance imaging and analysis;
4. Oil flooding experiment - magnetic resonance imaging and analysis;
Application example 1: Standard core gas flooding experiment, imaging:
Application Case 2: Standard Core Water Flooding Experiment, Dynamic Process Imaging Study
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