Experimental Study of the Effect of Injection Different Kinds of Water on Extra Low Permeability Reservoir

Abstract:

The experiment study effect of injection different kinds of water on extra low permeability reservoir of Yushulin Oilfield. In the condition of actual temperature and pressure of the reservoir, through the experimental study the effect of injection different kinds of water on extra low permeability core. Experiments include injecting clean water, injecting clean water with scale inhibitor, injecting traditional treated sewage, injecting deep treated sewage, injecting deep treated sewage with scale inhibitor. The experimental results show that: Long term injecting clean water and clean water with scale inhibitor are harmless to core; Injecting traditional treated sewage, high content of oil and impurity bring injection pressure go up, the permeability of core down sharply; Injecting deep treated (aeration + flotation (PAC+PAM) + filtration + ultra filtration (FeCl₃)) sewage must be added scale inhibitor, otherwise injection pressure continuously increase, permeability of the core continuously decrease, which seriously affect injection water.

• Periodical: Advanced Materials Research (Volume 968)
• Pages: 206-210
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.968.206
• Online since: June 2014
• Authors: Tao Ping Chen*, Xian Xi Su
• Keywords: Extra Low Permeability Reservoir, Sewage, Treatment of Oilfield Sewage

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