METHOD TO TRANSPORT GAS-OIL-WATER MIX AND DEVICE TO THIS EFFECT Russian patent published in 2009 - IPC F17D1/14 

FIELD: oil-and-gas industry.

SUBSTANCE: invention can be used in intrafield gas-oil-water mix transfer. Proposed method comprises preliminary treatment of said mix by demulsifier, and producing pressure and velocity phase divider in large-diametre pipeline to break the mix into phases to be enclosed in said phase divider. It includes also gas bleeding from gas-water interfaces at various level with the help of multiple independent flows. Gas-oil-water mix is forced consecutively, in said large-diametre pipe, through vortex electromagnetic field inductors and overflow cascade arranged on inclined section of aforesaid pipeline. Oil and water are directed from said enclosed spaces of phase divider are directed into separate separators. Note here that water is subjected to permanent electromagnetic field effect at phase divider outlet. Gas is bled from gas-water and gas-oil interfaces and fed into separator gas zones at various levels via multiple independent flows that feature sections decreasing in height, and forcing said gas into gas zone of subsequent apparatus. Gas from oil and water separators is also bled at various levels via multiple independent flows that feature sections decreasing in height and is forced through expanding tanks. Drop-like oil and water separated therein are continuously forced back into appropriate separators. Further on, gas is directed, via collecting gas duct, into final collecting tank. Water-oil condensate separated therein, as well as water ballast from oil separator bottom, are intermittently fed back into large-diametre pipeline, while water with settled mechanical impurities on water separator bottom is periodically bled for further recovery and use. Jump variation in pressure differences between separators and between enclosed spaces in phase divider is compensated by bypassing excess or deficient amount of gas from one enclosed space or separator into another. Proposed device comprises large-diametre pipe with its inlet accommodating vortex electromagnetic field inductors and its center, on inclined section, furnished with stepwise overflow cascade. The pipe outlet accommodates phase divider divided by webs into oil and water phase chambers communicated, via pipes, with oil and water separators, respectively. Gas zones of oil and water chambers in phase divider communicate, via multiple various-diametre pipes of gas bleeders, with oil and water separators' gas zones. Pipe arranged on phase divider water chamber outlet is furnished with permanent electromagnetic field inductors.

EFFECT: accelerated mix separation into phases, higher reliability of phase control, higher quality of phases.

2 cl, 1 dwg