DEVICE FOR CLEANING INJECTION WELLS bottom zones depression pulse drainage

摘要

The invention relates to the field of oil extraction, namely, to the means for cleaning the bottom zones of injection wells.; Problem to be solved is to simplify the structure, reducing labor costs during use, increasing the efficiency of the control process drainage perforations injection wells while reducing their idle time.; The stated object is achieved in that the device for cleaning the bottom zones of injection wells depression-pulse drainage comprising deflated into the wellbore plug, configured in the form of an overturned glass, driven by a ground drive unit with traction valve mounted on the upper end of the plug, packer, disposed in the well above the perforated interval in contrast to the known, provided with a lubricator for traction passes at the wellhead, the plug is mounted within tubing, the lower part of which removed abzhena plug, and opposite the perforated interval in the tubing is provided with holes, wherein said holes are arranged at a distance from the plug tubing by more than the length of the inverted plunger cup furthermore wellhead equipped outtake line for the discharged fluid from the tubing fitted with a shut-off valve, and discharge line for pumping fluid into the tubing isolating valve, which are equipped with sensors monitoring the pressure in the cavity of the tubing.