Patent ID: 8347916
Filing Date: 2013-01-08
Classification: E21B,F17D,Y10T

Abstract:
1. A system, comprising: a chemical injection connector configured to couple chemical injection lines in a mineral extraction system, the connector comprising: a first coupling configured to be secured to a first chemical injection line, wherein the first coupling comprises a first valve in a first fluid pathway; and a second coupling configured to be secured to a second chemical injection line, wherein the second coupling comprises a second valve in a second fluid pathway; wherein the first and second valves are automatically biased toward respective closed positions resisting ingress of an external fluid when the first coupling is not mated to the second coupling; wherein the first valve comprises a poppet disposed within the first fluid pathway, wherein the poppet is automatically biased to close an opening in the first fluid pathway; wherein the first valve comprises a plug disposed within a cavity adjacent to the poppet, wherein the plug is configured to move within the cavity based on a fluid pressure within the first chemical injection line, and the plug is configured to supplement the bias of the poppet to close the opening in the first fluid pathway in response to an increase in fluid pressure.