Patent ID: 8567764
Filing Date: 2013-10-29
Classification: E21B

Abstract:
1. A well pump puller for extracting a well pump from within a well casing that extends from a ground surface to a below-ground point, the well pump having, electrical wiring with a first wiring end connected to the well pump and a second wiring end extending up to the ground surface, and a water pipe with a first pipe end connected to the well pump and a second pipe end extending up to the ground surface, said puller comprising: a rigid base having, an engagement element adapted to engage at least one of the well casing and the ground surface, and a base extension extending upwardly; a rigid support element, moveably engaged with the base extension, and rotatably supporting a spindle, the spindle, having a rotation element for rotating the spindle, and being adapted to fixably receive the second wiring end; and an elastic element, disposed between said base and said support element, and having a first element portion adapted to abut said base and a second element portion adapted to abut said support element during a well pump extraction; wherein when the second wiring end is fixably received by the spindle and the rotation element is rotated to rotate the spindle, the electrical wiring is wound around the spindle resulting in a pulling force applied to the electrical wiring, which pulls the water pipe and the pump from within the well casing towards the ground surface, and the elastic element is adapted to deform to absorb at least a portion of a yank force arising at least in part from the pulling force.