Patent Number: 7,231,978

Title: Chemical injection well completion apparatus and method

Abstract: An apparatus to be disposed within a wellbore includes a production tubing in communication with a pump string and a bypass string at its distal end, wherein the pump string is configured to pump a wellbore fluid to a surface location through the production tubing, wherein the bypass string includes an upper fluid gate, a packer and a lower fluid gate, wherein the upper and the lower fluid gates are configured to selectively allow or disallow fluid communication with a bore of the bypass string, wherein the upper fluid gate is positioned above the packer and the lower fluid gate is positioned below the packer. The apparatus includes a check valve to prevent reverse fluid communication from the production tubing to the pump string.

Inventors: Rivas; Olegario (Tulsa, OK), Jaua; Jose Ernesto (Estado Zulia, VE), Lopez; Hendry (Ciudad Del Carmen, MX)

Assignee: Schlumberger Technology Corporation

International Classification: E21B 43/116 (20060101); E21B 43/27 (20060101)

Expiration Date: 2019-06-19 0:00:00