顆粒無收的幾率還是很小的。
Traditional vertical drilling, 成功率 80%.
近些年又發明一種 horizontal drilling, 成功率 >99%.
一般你的錢會分散投到幾十口井,降低風險。
顆粒無收的幾率還是很小的。
Traditional vertical drilling, 成功率 80%.
近些年又發明一種 horizontal drilling, 成功率 >99%.
一般你的錢會分散投到幾十口井,降低風險。
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