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US 2009/0266546 A1Published application
Apparatus and Method For Discharging Multiple Fluids Downhole
AssigneeBaker Hughes Incorporated
InventorsFreeman L. Hill, Randall L. Evans
Life of this patent
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Abstract
An apparatus and a method are provided for discharging a plurality of fluids downhole. In one aspect, the apparatus may include a first chamber and a second chamber separated by movable barrier, wherein draining the fluid from the first chamber causes the barrier to move and allow an actuating member to drain the second fluid from the second chamber.
Claims20
An apparatus for use in a wellbore, comprising:
- a carrier;
- a first chamber in the carrier configured to contain a first fluid;
- a second chamber in the carrier configured to contain a second fluid;
- a movable barrier separating the first fluid in the first chamber from the second fluid in the second chamber;
- and
- an actuating member configured to drain the second fluid from the second chamber when the first fluid is drained from the first chamber.
3 more elements
A method of discharging a plurality of fluids in a wellbore, comprising:
- conveying a carrier in the wellbore that includes a first chamber having a first fluid and a second chamber having a second fluid, wherein the first and second chambers are separated by a movable barrier;
- and
- draining the first fluid from the first chamber to cause the movable barrier to move and enable an actuating device to drain the second fluid from the second chamber.
An apparatus for supplying a plurality of fluids into a wellbore, comprising:
- a downhole tool conveyable into a wellbore by a conveying member, the downhole tool including:
- a carrier;
- a first chamber in the carrier configured to contain a first fluid;
- a second chamber in the carrier configured to contain a second fluid;
- a movable barrier separating the first fluid in the first chamber from the second fluid in the second chamber;
- an actuating member configured to drain the second fluid from the second chamber when the first fluid is drained from the first chamber;
- and
- a pressure equalizer configured to apply pressure on the movable barrier to cause the barrier to move toward the actuating member.
5 more elements
Dependencies are inferred from the claim text.