Wells – Processes – Specific propping feature
Reexamination Certificate
2006-05-02
2006-05-02
Suchfield, George (Department: 3676)
Wells
Processes
Specific propping feature
C166S300000, C166S308500, C166S308600, C507S201000, C507S202000, C507S211000, C507S215000, C507S216000, C507S241000, C507S273000
Reexamination Certificate
active
07036590
ABSTRACT:
The present invention discloses two stage subterranean zone fracturing fluids and methods. A two stage subterranean zone fracturing fluid of the invention comprises a first stage fluid comprising a foamed liquid containing a water soluble gel breaker and a second stage fluid that comprises a viscous liquid containing a metal cross-linked gelling agent. Another two stage subterranean zone fracturing fluid comprises a first stage fluid comprising a foamed liquid containing a water soluble gel breaker and a second stage fluid comprising a viscous liquid containing a borate cross-linked gelling agent.
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Crutsinger & Booth
Halliburton Energy Service,s Inc.
Kent Robert A.
Suchfield George
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