OIL FIELD THERMAL TREATMENT AND EQUIPMENT FOR ITS EXECUTION Russian patent published in 2010 - IPC E21B43/24 E21B36/04 

FIELD: oil-and gas industry.

SUBSTANCE: method includes descending well electro heater on a tubing string (TS) into reservoir interval with the following heating and heated product exploration. Heated product production execute with the periodical injection of the heated product back to the oil reservoir. Increase the heated product injection volume and pressure every period till it reaches maximum allowable injection pressure. At the every period the volume of the heated product injected back to the reservoir - few times smaller than the volume of produced heated product. Equipment includes the well electro heater with a drive, located on TS. The TS equipped with a parker higher then the well electro heater, but lower than well's dynamic with production level, hermetically separating well's string clearance. Radial holes performed bellow the parker on TS, and over the parker on TS installed a bottom hole pump. TS is sealed at the bottom, which increases heat transfer area at TS's part from the blind valve to the radial holes.

EFFECT: oil reservoir thermal treatment efficiency increase, due to cover radius increase and providing oil supply from a zone remotely located from the well.

2 cl, 2 dwg