ACIDIZATION PROCESS OF THE BOTTOM-HOLE ZONE OF ACCLINAL OR LATERAL WELL Russian patent published in 2008 - IPC E21B43/27 

FIELD: oil and gas industry.

SUBSTANCE: invention is referred to a petroleum industry and can be applied at an acidization of a bottom-hole zone of acclinal or lateral well held in thin carbonaceous productive strata, spread by water. In acidization process of a bottom-hole zone of acclinal or lateral well a running in a treated spacing of an erosion perforator of single acting with a nozzles direction upwards. Preliminary in a treatment spacing oil or an oil emulsion is pressed through, above a spacing of treatment in a well bore is space filled by oil, it is held through the perforator jet affecting by hydrocarbon resolvent, then by an acid mud at the rate of trunk chasings on the depth to 1.5 m then technological endurance on an acid response is made, the equipment is extracted from a hole, swabbing and hole start-up in operation are made. The invention is developed in dependent point of the formula. Technical result - accretion of uniform sweep by treatment of formation zones near the hole, prevention of reception of communication channels with an aquiferous part.

EFFECT: accretion of uniform sweep by treatment of formation zones near the hole, prevention of reception of communication channels with an aquiferous part.

2 cl, 1 ex, 1 dwg