Patent ID: 8753507

Claim:
An artificial oil lifting unit comprising: an endless olephilic absorbent belt; surface equipment; and down hole equipment, the absorbent belt driven by the surface equipment and tensed by the down hole equipment placed in a well production casing, wherein the said absorbent belt ( 1 ) is looped over a central pulley ( 2 ) from a driving and collecting module (C) and driven by a double toothed belt ( 4 ) looped over six pulleys from which five of the six pulleys are free ( 6 , 7 , 8 , 9 and 10 ) and one of the six pulleys is a driving pulley ( 5 ) placed over an entry shaft ( 36 ), and the double toothed belt ( 4 ) is also looped over the oil absorbent belt on the central pulley and tensed with two identical systems (I) with pulleys commanded from the exterior of a case ( 13 ).