Hydraulic line controlled device with density barrier
AssigneeHalliburton Energy Services, Inc.
InventorGlen P. Breerwood
Life of this patent
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Abstract
The disclosure provides a downhole completion device for use in a wellbore and a subterranean production well. In one embodiment, the downhole completion device includes: (1) a hydraulic line controlled device, the hydraulic line controlled device having a control line port and one or more fluid leakage paths, and (2) a density barrier having first and second ends, wherein the first end is coupled to the control line port and the second end is configured to couple to a control line extending from a surface installation, the density barrier having an axial loop relative to the hydraulic line controlled device and positioned below the fluid leakage path, thereby preventing migration of leakage fluid from the one or more fluid leakage paths to the surface installation.
Claims24
A downhole completion device for use in a wellbore, comprising:
- a hydraulic line controlled device, the hydraulic line controlled device having a control line port and one or more fluid leakage paths;
- and
- a density barrier having first and second ends, wherein the first end is coupled to the control line port and the second end is configured to couple to a closed loop control line extending from a surface installation, the density barrier having an axial loop relative to the hydraulic line controlled device and positioned below the one or more fluid leakage paths, thereby preventing migration of leakage fluid from the one or more fluid leakage paths to the surface installation.
A subterranean production well, comprising:
- a surface installation;
- a wellbore extending into a subterranean formation below the surface installation;
- a conduit positioned within the wellbore and extending into the subterranean formation;
- a closed loop control line having an uphole end and a downhole end, the control line extending from the surface installation into the subterranean formation substantially along the conduit;
- and
- a downhole completion device coupled to the conduit, the downhole completion device including;
- a hydraulic line controlled device, the hydraulic line controlled device having a control line port and one or more fluid leakage paths;
- and
- a density barrier having first and second ends, wherein the first end is coupled to the control line port and the second end is coupled to the downhole end of the control line, the density barrier having an axial loop relative to the hydraulic line controlled device and positioned below the one or more fluid leakage paths, thereby preventing migration of leakage fluid from the one or more fluid leakage paths up the control line and to the surface installation.
Dependencies are inferred from the claim text.