PROCEDURE FOR DEVELOPMENT OF OIL PRODUCING WELL AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2017 - IPC E21B43/27 C02F1/66 

FIELD: oil and gas industry.

SUBSTANCE: procedure for development of the oil producing well comprises the following steps: well bottomhole acidizing, in which the acid solution is pumped into the bottom zone, waiting for the acid solution reaction with the bottom zone's rock; swabbing, in which shank is lowered in the bottom zone, wherein the shank is loaded with granules of magnesium metal, swab is lowered into the well, the fluid medium is withdrawn from the well. The fluid medium withdrawn from the well by swabbing, is brought into contact with metallic magnesium granules loaded into the shank, during passing through the shank. A device for the deacidification comprises a shank connected to the flown column or representing a part of the tubing string column, wherein the shank has a housing, an internal cavity, whereinto granules of magnesium metal are loaded, and holes for the selection of the fluid medium formed in the shank housing. The shank cavity has a connection with a hole of the tubing string column. The mentioned holes have rectangular, circular, trapezoidal shape or combinations thereof.

EFFECT: reduced well development duration, energy and labour costs for transportation, processing and disposal of acid used in the process, reduced corrosion of the downhole equipment.

18 cl, 2 dwg