Patent ID: 8302310
Filing Date: 2012-11-06
Classification: B01D,B21F,B23K,B23P,E21B,Y10T

Abstract:
1. A method of making a sand screen on a base pipe, comprising: positioning a first plurality of rods axially along an outer surface of the base pipe; grounding the first plurality of rods with a plurality of contacts by engaging each of the first plurality of rods with a corresponding one of the plurality of contacts, wherein each of the plurality of contacts is connected to a mounting ring disposed radially outward from the base pipe, wherein each contact comprises a protrusion, and each protrusion is disposed within a corresponding groove in the mounting ring; wrapping a first wire around the base pipe and the first plurality of rods; welding the first wire to the first plurality of rods; and moving the plurality of contacts radially outward in a linear direction by sliding the protrusion of each contact within a corresponding groove.