METHOD AND DEVICE FOR PRODUCING BY PUMPING IN A HORIZONTAL DRAIN HOLE

摘要

- The present invention relates to a pumping method and device in a well comprising a portion that is greatly inclined with respect to the vertical. Pum ping means (4) secured to a string of tubes (5) are lowered into the well. Suction m eans (15, 16) are set into the greatly inclined well portion at the lower end of the pumping means. - At least one suction port (26) is placed laterally with respect to the suction means and in a single direction. - The direction of the port is so oriented that it is substantially opposite a lower generating line of said well. - In a variant, the suction means comprise an articulated body (22) that can place the port opposite the lower generating line of the well. - Figure 1 to be published.