E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 37/00 (2006.01) E21B 21/10 (2006.01)
Patent
CA 2708835
A system for cleaning a bottom-hole formation zone of a wellbore comprises a now string for extending into the bottom-hole formation zone of the wellbore. A hydrostatic joint is disposed along the flow string. The hydrostatic valve includes a valve which controls the flow of fluid through the flow string. There is a fluid supply for discharging fluid into the wellbore around the flow string to create a hydrostatic pressure differential between the flow string and the wellbore. Fluid and suspended solids in the bottom-hole formation zone of a wellbore are prevented from flowing into the flow string when the valve is closed. However, fluid and suspended solids in the bottom-hole formation zone of a wellbore are permitted to flow into the flow string when the valve is open.
Denisov Evgeniy N.
Gamerov Marat S.
Yafarov Ildar M.
Cameron Ip
Denisov Evgeniy N.
Gamerov Marat S.
Lamrock Canada Incorporated
Yafarov Ildar M.
LandOfFree
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