Surge assembly with fluid bypass for well control
AssigneeHalliburton Energy Services, Inc.
InventorsDarren Ross Barlow, Scott Randall Von Kaenel
Life of this patent
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Abstract
A method of providing an underbalance in a wellbore that includes positioning a surge assembly within the wellbore; bypassing a differential chamber that extends along a portion of the length of the surge assembly when flowing fluid through a fluid passageway that extends along the length of the surge assembly; and placing the fluid passageway in fluid communication with the air chamber to create an underbalance in the fluid passageway.
Claims11
A method of providing an underbalance in a wellbore, the method comprising:
- positioning a surge assembly within the wellbore;
- bypassing a differential chamber that extends along a portion of the length of the surge assembly when flowing fluid through a fluid passageway that extends along the length of the surge assembly,
- wherein the differential chamber, when bypassed, is fluidically isolated from a portion of the wellbore surrounding the surge assembly;
- and
- placing the fluid passageway in fluid communication with the differential chamber to create an underbalance in the fluid passageway.
A method of providing an underbalance in a wellbore, the method comprising:
- positioning a surge assembly within the wellbore;
- bypassing a differential chamber that extends along a portion of the length of the surge assembly when flowing fluid through a fluid passageway that extends along the length of the surge assembly;
- and
- placing the fluid passageway in fluid communication with the differential chamber to create an underbalance in the fluid passageway;
- wherein the surge assembly comprises:
- a first tubular that forms the fluid passageway;
- and
- a second tubular that is disposed about the first tubular to create a first annulus that forms the differential chamber;
- wherein the surge assembly forms a portion of a working string;
- wherein the fluid passageway extends within the working string from a surface of the wellbore, through the surge assembly, and to an end portion of the working string;
- wherein opening the valve that is formed in the wall of the first tubular fluidically isolates a portion of the fluid passageway that extends towards the surface of the wellbore from a portion of the fluid passageway that extends to the end portion of the working string;
- wherein opening the valve places the portion of the fluid passageway that extends to the end portion of the working string in fluid communication with the differential chamber;
- wherein the method further comprises determining a first target flow rate range for the valve;
- and
- wherein opening the valve that is formed in the wall of the first tubular comprises opening the valve to a first position that corresponds with the first target flow rate range.
A method of providing an underbalance in a wellbore, the method comprising:
- positioning a surge assembly within the wellbore;
- bypassing a differential chamber that extends along a portion of the length of the surge assembly when flowing fluid through a fluid passageway that extends along the length of the surge assembly;
- and
- placing the fluid passageway in fluid communication with the differential chamber to create an underbalance in the fluid passageway;
- wherein the surge assembly forms a portion of a working string that extends from a surface of the wellbore;
- wherein the surge assembly is positioned, along the working string, between the surface of the wellbore and a downhole tool;
- and
- wherein the method further comprises pressurizing the fluid within the fluid passageway to activate the downhole tool while bypassing the differential chamber.
Dependencies are inferred from the claim text.