Wells – Processes – Graveling or filter forming
Reexamination Certificate
2006-12-26
2006-12-26
Gay, Jennifer H. (Department: 3672)
Wells
Processes
Graveling or filter forming
C166S051000, C166S308100, C166S177500
Reexamination Certificate
active
07152677
ABSTRACT:
The present invention provides a method for gravel packing a open-hole wellbore having a filter cake, comprising pumping a gravel slurry into a first portion of an annulus between the wellbore and a screen, at a sufficient rate and pressure to form at least a first fracture and diverting the gravel slurry to a second portion of said annulus through alternate flowpaths while providing hydraulic isolation between the first and the second portion of said interval, thereby preventing flowback from said second portion to said first portion and resulting extension of the first fracture, and thereby forming a second fracture in said second portion of said interval.
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Morton, B. et al, “Multi-Zone, Single-Trip Gravel Packs Speed Time To Production” Offshore, Petroleum Publishing Co. Tulsa, US, vol. 52, No. 11, Nov. 1, 1992.
Hurst Gary
Parlar Mehmet
Price-Smith Colin
Tibbles Raymond
Curington Tim
Gay Jennifer H.
Mitchell Thomas O.
Nava Robin
Schlumberger Technology Corporation
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