Hydraulic and earth engineering – Marine structure or fabrication thereof – With anchoring of structure to marine floor
Patent
1989-06-19
1991-12-10
Taylor, Dennis L.
Hydraulic and earth engineering
Marine structure or fabrication thereof
With anchoring of structure to marine floor
405224, 405227, 137 70, E02B 1700, E02D 514
Patent
active
050712888
ABSTRACT:
A subsea inflation and grout system for use on subsea supports of offshore drilling platforms and the like. The system includes at least one grout control valve and at least one inflation control valve, each of which has a piston therein with a side always exposed to hydrostatic pressure from the sea when submerged. In the event of damage to the grout line to the grout control valve or the inflation line to the inflation control valve, the piston in the valve is pressure balanced so that hydrostatic pressure cannot prematurely or accidentally move the piston. The piston in the grout control valve is held in place by a shear pin. The piston in the grout control valve is held in place by a spring. The piston in the inflation control valve further defines a passage therethrough, and a check valve is disposed in the passage for preventing fluid flow from the outlet of the inflation control valve to the inlet even when the piston is in an open position.
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Exhibit A-Drawing of Inflation Check Valve/Inflation Control Valve.
Halliburton Services Sales Brochure SS-103, "Unitrol Manifold".
Halliburton Services Brochure C-1247, "Advanced Materials and Techniques Make Halliburton Your Best Choice for Offshore Platform Grouting".
Halliburton Services Sales & Service Catalog No. 43, pp. 2590-2591, published in 1985.
Duzan James R.
Halliburton Company
Kennedy Neal R.
Ricci John A.
Taylor Dennis L.
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