Oil field ground nitrogen gas foam companion annotates flow measuring device

The utility model discloses an oil field ground nitrogen gas foam companion annotates flow measuring device, including the last connecting pipe, the sand setting device that connect gradually, get the clamping ring room, it still is connected with changer and numerical control collection display system to get the clamping ring room, it has the clamp head to go up the connecting pipe, go up the connecting pipe and connect notes steam pipe line incoming flow pipeline through last clamp head, it still is connected with the lower connecting pipe that has lower clamp head to get the clamping ring room, going up the connecting pipe and passing through last clamp head connection notes steam pipe line incoming flow pipeline, lower connecting pipe passes through clamp head connection low reaches steam conduit down. The utility model discloses utilize single throttling arrangement, one set of differential pressure realizes oil field ground nitrogen gas foam companion notes with the pressure test instrument.