Patent ID: 7827646

Claim:
A pipeline pig for dispersing liquid onto interior surfaces of a pipeline comprising: a longitudinal pig body having a nozzle at a forward end thereof, three or more external circumferential sealing elements, and a circumferential array of ports; said nozzle having a conical-shaped central opening and a venturi and sharing a common longitudinal centerline with said pig body; said first and second sealing elements each being located rearward of a forward portion of said nozzle and each being perforated to provide two or more passageways through the sealing element; wherein said two or more passageways comprises a first passageway and a second passageway; said first passageway being in communication with an upper interior quadrant of a pipeline and said second passageway being in communication with a lower interior quadrant of the pipeline; and said array of ports being in communication with an interior portion of said nozzle and a low pressure plenum.