METHOD TO OPERATE WELL FURNISHED WITH SUCKER-ROD PUMP Russian patent published in 2010 - IPC E21B43/16 

FIELD: oil-and-gas industry.

SUBSTANCE: invention relates to oil-and-gas extraction industry and can be use at wells equipped with sucker-rod pumps. Substance claim: proposed method comprises fitting tubing string with sucker-rod pump and shank on rocks in dib hole, arranging the pump at maximum depth in well antinode tuned to one of the highest harmonics, that is, modes of the system natural oscillations, setting the pump plunger amount and stroke length proceeding from the well optimum rate of yield, pump operation and oil extraction from the well with simultaneous dilatation-wave stimulation of productive strata. In compliance with this invention, pipes for shank and tubing string are selected so that shank pipe cross section vs, cross section of pipes above said shank corresponds to shank length-to-length of tubing casing above the shank ratio.

EFFECT: increased reservoir recovery due to higher wave field intensity and stimulation effects.

1 ex, 1 dwg