WELL PUMPING UNIT FOR OIL IN leaky production casing

摘要

The invention relates to wellbore equipment with production tubing having unsealed portion. The downhole pump assembly includes a string of tubing (1), the pump (2), the packer (3) separating the reservoir (6) from the unsealed portion (7). In the casing (8) is insertable plunger pump (2) whose output is connected to the surface equipment through the column hollow sucker rods (9), the casing (8) in fluid communication with the cavity of the tubing (1) having perforations ( 10) for connection to a producing formation (6). Setting its installation and maintenance simplified through the use of standard equipment - plug-in pump. 2 yl.