METHOD OF AND DEVICE FOR COMPRESSING AND PUMPING OVER GASES OR GAS-LIQUID MIXTURES Russian patent published in 2000 - IPC

FIELD: oil and gas industry; drilling and completing wells, production, collection and treatment of oil and gas. SUBSTANCE: gases are transferred by pumps of any type (positive displacement and rotodynamic pumps) without modification of the latter. Gas or gas-liquid mixture is delivered periodically through valve into suction line alternating gas of gas-liquid mixture delivery with delivery of liquid from source at pressure higher than pressure of gas or gas-liquid mixture delivered to pump. At each period, with closing of valve and cutting off gas or gas- liquid flow through valve, compression of gas and its forcing out, together with liquid, through working chamber into delivery line is provided by delivering liquid into suction line. Source of gas or gas-liquid mixture communicates with pump through its suction line. Section of suction line between valve and working chamber is connected to liquid source through shutoff control device. EFFECT: enlarged operating capabilities. 7 cl, 1 dwg