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Inventor: Welch, Jr.; Edward W.
Address: Broken Arrow, OK
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 7552774 |
Control line hydrostatic minimally sensitive control system |
June 30, 2009 |
| A control system for a downhole tool, such as a subsurface safety valve, features an operating piston that is insensitive to tubing pressure in the valve. The hydrostatic forces from the single control line from the surface are significantly reduced with a branch line to a piston bottom |
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