Process for treating a formation

Details Process for treating a formation Process for treating a formation

2007-12-11

2007-12-11

Suchfield, George (Department: 3676)

Wells

Processes

Cyclic injection then production of a single well

C166S279000, C166S295000, C166S300000, C507S211000, C507S216000, C507S225000, C507S271000, C507S902000, C507S906000

Reexamination Certificate

active

10524050

ABSTRACT:
A method of introducing an oil field or gas field production chemical into a hydrocarbon-bearing porous subterranean formation penetrated by a wellbore comprising: injecting a gelling composition comprising an aqueous liquid, an oil field or gas field production chemical, and a gellable polymer through the wellbore into the porous subterranean formation wherein the gellable polymer forms a gel within the pores of the subterranean formation thereby encapsulating the production chemical in the gel; and controllably releasing the production chemical from the gel into a formation fluid.

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