Injection mandrel

Details Injection mandrel Injection mandrel

1987-04-03

1989-06-06

Kyle, Deborah L.

Wells

Processes

Entraining or incorporating treating material in flowing...

E21B 4300

Patent

active

H00006351

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 another embodiment a dip tube communicating with the injection valve pocket places treating fluid at a preselected location in the well.

REFERENCES:
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patent: 3104715 (1963-09-01), Robinson et al.
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patent: 4360064 (1982-11-01), O'Conner et al.
patent: 4462465 (1984-07-01), Strickland
patent: 4589482 (1986-05-01), Bayh, III
patent: 4646828 (1987-03-01), Schwab, Jr. et al.
McMurray illustration of Center Pocket Mandrels.
Teledyne Merla, Sidepocket Mandrels, 1980, "Composite Catalog," p. 6833.

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