The oilfield in the south of Daqing Changyuan characterizes the narrow sand body most of which distributes in the shape of straps or net structures.
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美
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大慶長(cháng)垣南部窄小砂體油田,砂體多呈條帶狀或枝網(wǎng)狀分布,油層層內層間非均質(zhì)較嚴重,在目前的高含水期,采用常規的水驅開(kāi)采方法很難挖潛。
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