Wells – Processes – Perforating – weakening – bending or separating pipe at an...
Reexamination Certificate
2011-03-01
2011-03-01
Neuder, William P (Department: 3676)
Wells
Processes
Perforating, weakening, bending or separating pipe at an...
C166S055100, C166S292000
Reexamination Certificate
active
07896077
ABSTRACT:
A transient overbalance condition is created in a wellbore interval such that a pressure of the wellbore interval is greater than a reservoir pressure in surrounding formation. Creating the transient overbalance condition causes a near-wellbore region of the formation to increase in pressure. The pressure in the wellbore interval is reduced at a rate that produces a relative underbalance condition in which the pressure in the wellbore interval is less than the pressure of the near-wellbore region of the formation, but the pressure in the wellbore interval is greater than the reservoir pressure.
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Behrmann Lawrence A.
Grove Brenden M.
Harvey Jeremy
Tibbles Raymond J.
Fuller Robert E
McGoff Kevin B.
Neuder William P
Schlumberger Technology Corporation
Trop Pruner & Hu
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