| 摘要 |
<p>Steam is generated for thermal oil recovery by delivering a produced oil-water emulsion, together with a hot hydrocarbon liquid to a flash vessel where most of the water is flashed off as steam, which can be used for injection in further thermal oil production. The liquid phase, containing oil, entrained solids and some water is passed to a separator, where a portion of the oil is removed as a sales quality product, most of the water and solids are removed as waste and the remaining oil and traces of water are recirculated to a heater and a flash vessel to provide heat for further processing. The produced water-oil emulsion may first be passed through a separator vessel which divides the emulsion into hydrocarbon liquid, gas and water streams, with hydrocarbon liquid being sent to a coalescer vessel to produce oil, the gases sent to a fuel or flare system and the water being treated as waste.</p> |
