| 摘要 |
<p>An apparatus for inverting a water-in-oil emulsion, containing a water-soluble or dispersible polymer in the water phase, into an aqueous medium and method for using this apparatus to invert such an emulsion. The apparatus comprises a valve body having a first entry conduit and an exit conduit which form a portion of the body, a control means, located within the body between the first entry and exit conduit, for controlling fluid flow between the two conduits, and a second entry conduit which is integrally joined to the body and in fluid communication with the first entry conduit. The apparatus is particularly suited for inverting water-in-oil emulsions of acarylamide polymers into oilfield brines or hard water, the resulting aqueous stream being useful for the treatment of subterranean formations.</p> |
