Patent ID: 6857477

Claim:
A method for using a downhole vent-dump valve having a closed position and a venting position positioned below the standing valve assembly but above the stinger assembly of a reciprocating pump placed within the production tubing, an associated means for driving the pump, a wellhead and control valves comprising: a) preparing a chemical to be spotted in the production tubing; b) preparing makeup fluid; c) attaching said chemical to be spotted to the wellhead control valve; d) attaching said makeup fluid to the wellhead control valve; e) ceasing pumping operations; f) opening the control valve leading to said chemical to be spotted; g) drawing up on the pump drive means thereby opening the vent-dump valve and placing the vent-dump valve in the venting position thereby allowing said chemical to be spotted to be drawn into the well; h) closing the control valve leading to said chemical to be spotted as said chemical to be spotted is exhausted and opening the control valve leading to said makeup fluid; i) lowering the pump drive means thereby placing the vent-dump valve in the closed position as the supply of said makeup fluid is exhausted; j) closing the control valve leading to said makeup fluid; and, k) restoring the well to normal operating conditions.