WELL BATCHER Russian patent published in 1998 - IPC

FIELD: well batchers. SUBSTANCE: well batcher includes body, flow channel, separating tank, intermediate chamber hydraulically communicated with container for reagent by pipes of large and small lengths, throttle from porous permeable material. Replacement channel is connected with intermediate chamber with change of fluid flow through 180 deg. One part of fluid from flow channels passes to separating tank and further on to throttle. Separation takes place and one part of fluid gets through replacement channel to intermediate chamber for replacement of reagent. Formation water starts flowing to intermediate chamber to displace reagent from it through throttle to flow channel. As operation proceeds water level reaches pipe of small height. Further, all water from separating tank starts overflowing to reagent container to displace reagent to intermediate chamber through pipe of large length and then, through throttle to flow channel. EFFECT: higher efficiency. 2 cl, 3 dwg