METHOD OF COMPLETING OIL OR GAS WELL AND DEVICE FOR ITS EMBODIMENT Russian patent published in 2002 - IPC

FIELD: oil-gas producing industry, particularly, technology of completion of oil and gas wells by swabbing. SUBSTANCE: run into well is tubing string. Tubing string lower part has jet pump whose channels are narrowing toward tubing string. Channels communicate pipe space with annulus space of jet pump which separates annulus space from well space. level of fluid in annulus space is lowered to calculated level. In this case, fluid above swab are left at minimal level. Swab is lowered on cable into tubing string below fluid level. Swab is reciprocated through fixed distance at different depth but not above fluid level. Fluid is removed from well through tubing string. Proposed method is provided variable pressure of well fluid on formation in process of well completion in which filter and bottom-hole formation zone are washed at each stroke of swab and also regulation of repression on formation depending on value of formation pressure. EFFECT: higher efficiency. 3 cl, 1 dwg