METHOD OF WELL COMPLETION AND OPERATION Russian patent published in 2000 - IPC

FIELD: oil producing industry; applicable in operations involved in lifting of well product in well completion and operation. SUBSTANCE: method includes bailing-up of well with airtight wellhead. Bailer is lowered into well to under oil level and lifted up to wellhead. Operation is carried out with airtight wellhead, and fluid is forced out from bailer to accumulation system. Bailer accommodates plunger with valve connected with pulling member. Bailer is lowered into well with plunger raised up to upper limit. After fixing of bailer relative to wellhead, plunger is lowered down to bailer bottom with fluid flowing over to bailer above space of plunger, and fluid is displaced from said space into system of product accumulation by raising plunger in bailer up to stop. EFFECT: higher efficiency of method. 3 dwg