二次开采
- 网络secondary recovery
二次开采-
砾岩油藏二次开采结束后，其采收率较低，地下仍存在大量的剩余油。
The recovery of conglomerate reservoirs is not high after secondary recovery and quantity of remaining oil has been remained in the reservoirs .
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在石油二次开采的油田注水系统中存在大量的硫酸盐还原菌（SRB）。
A large number of sulfate-reducing bacteria ( SRB ) have been detected in the system of oilfield injection-water for secondary exploitation of petroleum .
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气相色谱测定浸出油残留溶剂的改进方法&在没有新鲜机榨油情况下测定残留溶剂经过第一次和第二次开采后仍有数量众多的残余油残留在油井的岩石缝隙之中。
DETERMINATION OF SOLVENT RESIDUE WITH MODIFIED GC METHOD After primary and secondary procedures , there is still much residual oil in the rock crevices .