Self-contained hydraulic injection system and method for...

Details Self-contained hydraulic injection system and method for... Self-contained hydraulic injection system and method for...

E - Fixed Constructions

21

B

166/50

E21B 33/06 (2006.01) E21B 33/00 (2006.01) E21B 36/00 (2006.01)

Patent

CA 1185520

ABSTRACT OF THE DISCLOSURE Novel methods and systems are provided herein for sealing the sur- face controls of an oil and/or gas well. The method includes the steps of directly forcing a hydrogel into the surface controls of an oil and/or gas well by applying a hydraulic force of up to 6,000 psi or more directly against the hydrogel. The hydrogel is then frozen therein in situ, thereby forming a hydrate plug to prevent the egress of oil and/or gas. The creation of such hydrate enables removal of the surface controls, pipeline sections, etc., with great safety.

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