Methods of sealing pipe strings in well bores
AssigneeHalliburton Energy Services, Inc.
InventorsJiten Chatterji, David D. Onan, Roger S. Cromwell, Bobby J. King, Patty L. Onan
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Abstract
The present invention provides improved methods of sealing a string of pipe in a well bore. The methods basically include the steps of preparing a hardenable epoxy sealing composition which hardens into a solid mass having flexibility and resiliency comprising an epoxide containing liquid and a hardening agent, placing the epoxy composition in the annulus between the string of pipe and the walls of the well bore and allowing the epoxy resin to harden.
Claims34
An improved method of sealing a string of pipe in a well bore comprising the steps of:
- (a) preparing a hardenable epoxy sealing composition which hardens into a solid mass having flexibility and resiliency comprising an epoxide containing liquid and a hardening agent;
- (b) placing said epoxy composition into the annulus between said string of pipe and the walls of said well bore;
- and
- (c) allowing said epoxy composition to harden.
An improved method of sealing a string of pipe in a well bore whereby the sealant can withstand the effects of contact with corrosive fluids and pipe movements comprising the steps of:
- (a) preparing a foamed hardenable epoxy sealing composition which hardens into a solid mass having flexibility and resiliency comprising an epoxide containing liquid, a hardening agent and a compressible gas;
- (b) placing said epoxy composition into the annulus between said string of pipe and the walls of said well bore;
- and
- (c) allowing said epoxy composition to harden.
An improved method of sealing a string of pipe in a well bore whereby the sealant can withstand the effects of contact with corrosive fluids and pipe movements comprising the steps of:
- (a) preparing a foamed hardenable epoxy sealing composition which hardens into a solid mass having flexibility and resiliency comprising water, an epoxy resin, a hardening agent and a compressible gas;
- (b) placing said epoxy composition into the annulus between said string of pipe and the walls of said well bore;
- and
- (c) allowing said epoxy composition to harden.
Dependencies are inferred from the claim text.