To get usable oil from this mixture, producers have to separate the bitumen from the sand using hot water, and then process the bitumen into crude oil.
为了从混合物中得到油，开采者用热水把沥青跟沙子分开，再把沥青加工成原油。
2
Oil sand deposits are easier to access than crude from offshore wells.
而且相比离案油井来说，含油砂沉积物相比之下更加容易获得。
3
The oil sand bitumen was formed by the biologically degraded crude oil which originates from terrigenous organic matter.