提高底水油藏采收率的综合处理技术

通过底水油藏模型试验,研究了在注水井进行弱凝胺调驱、在生产井注入堵剂隔板,以及在注水井进行弱凝胶调驱的同时在生产井注入堵剂隔板的综合处理对采收率的影响。进行弱凝胶调驱、采取堵剂隔板及综合处理时提高采收率分别约为20％,25％和30％。试验结果表明,综合处理技术抑制底水锥进提高采收率的效果好于任何一种措施单独作用的效果,是一种抑制底水水侵的有效措施,在底水油藏提高采收率中将会有广泛的应用前景。

Synthetic processing technology on enhancing recovery efficiency in the bottom water oil reservoir

Based on the modeling experiment for the bottom water oil reservoir, the influence of three processing measures on recovery efficiency were studied, that is, the weak gel was separately injected into the water - injection well for flooding control, the closure of blocking agent was separately injected into production well, and the synthetic processing of weak gel for flooding control in water - injection well and closure of blocking agent was injected into the production well simultaneously. The enhancing recovery efficiencies of three measures were about 20% , 25% and 30% respectively. The experimental result shows that the effect of using synthetic processing technology on confining the bottom water coning for enhancing recovery efficiency was better than that of independent action using any single measure. It is one effective measure to control bottom water coning, and will have extensive application future in the bottom water oil reservoir.