Wells – Processes – Placing fluid into the formation
Reexamination Certificate
2006-09-19
2006-09-19
Suchfield, George (Department: 3676)
Wells
Processes
Placing fluid into the formation
C166S307000, C166S308200, C166S308300, C166S308400, C175S065000, C175S069000, C175S072000, C507S102000, C507S117000, C507S140000, C507S202000, C507S219000, C507S270000, C507S925000
Reexamination Certificate
active
07108066
ABSTRACT:
The present invention provides variable density fluid compositions and methods for using such compositions in a subterranean formation. One exemplary embodiment of the variable density fluid compositions of the present invention comprises a variable density fluid comprising: a base fluid, and a portion of variable pressure weighting material particles.
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