Injection mandrel

Details Injection mandrel Injection mandrel

E - Fixed Constructions

21

B

166/31

E21B 43/29 (2006.01) E21B 34/06 (2006.01) E21B 41/02 (2006.01)

Patent

CA 1287566

ABSTRACT An injection mandrel and method for introducing treating fluids into a well comprise a center pocket mandrel having a check valve in fluid communication with treating fluid in the annulus of the well and with a chemical injection valve in the mandrel. Treating fluid is pumped through the check valve and the chemical injection valve into the produced fluids in the mandrel, while reverse flow is prevented. In anther embodiment a dip tube communicating with the injection valve pocket places treating fluid at a preselected location in the well.

559598

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