| 摘要 |
<p>A mixing device comprising a first housing, a second housing, a swedge (or reducer), an inlet for carrier fluid, and an inlet for chemicals, wherein the ratio of the inside diameter of the first housing to the inside diameter of the second housing is in the range of 1 :2 to 1 :8; the change in diameter between the first and second housing is abrupt, inside the first housing are an inlet agitator and an injection nozzle, inside the second housing is a static mixer, and the swedge is connected to tubing that delivers a mixture of carrier fluid and chemical down a well bore. In an alternate embodiment, the present invention comprises two or three mixing assemblies on a frame.</p> |
