Abstract: A shear/blind ram assembly for a subsea wellhead that is positioned between a blowout preventer system and the wellhead configured to selectively discontinue the flow of oil from the wellhead to the blowout preventer system. The shear/blind ram assembly includes a horizontally aligned main body with a vertical bore that is aligned and registered over the well bore on the wellhead. The main body includes a perpendicularly aligned lower neck and a perpendicularly aligned upper neck. Located inside each neck is a hydraulic ram unit which when activated discontinues the flow of a fluid through the main body's fluid. The main body also includes a lower connection flange surface formed on the lower neck configured to selectively connect to a wellhead connector and an upper connector flange formed on the upper neck and configured to selectively attached to a blowout prevention assembly.

Abstract: A backup wellhead adapter for a subsea wellhead that is positioned between an existing blowout preventer system and the wellhead. The adapter is a dual housing assembly that includes a primary housing longitudinally aligned over a secondary housing. The primary and secondary housings include lower bodies and upper necks that have identical diameters. During assembly, the existing primary blowout preventing system is initially connected to the neck on the primary housing. The lower body of the secondary housing is connected to a ram assembly connected to the wellhead connector or connected directly to the wellhead connector. When a blowout occurs, the primary housing is disconnected from the secondary housing to expose the upper neck of the secondary housing upon which a replacement primary blowout preventing system or cap may be attached.

Abstract: A backup wellhead adapter for a subsea wellhead that is positioned between an existing blowout preventer system and the wellhead. The adapter is a dual housing assembly that includes a primary housing longitudinally aligned over a secondary housing. The primary and secondary housings include lower bodies and upper necks that have identical diameters. During assembly, the existing primary blowout preventing system is initially connected to the neck on the primary housing. The lower body of the secondary housing is connected to a ram assembly connected to the wellhead connector or connected directly to the wellhead connector. When a blowout occurs, the primary housing is disconnected from the secondary housing to expose the upper neck of the secondary housing upon which a replacement primary blowout preventing system or cap may be attached.

Abstract: A backup blowout system for a subsea wellhead positioned between an existing blowout prevention system and the wellhead. The backup blowout system includes an independently operated shear/blind ram assembly that attaches to a standard wellhead connector that connects to the wellhead. The ram assembly includes an upper neck with an upper flange on which a dual housing assembly is attached. The dual housing assembly includes a primary housing longitudinally aligned over a secondary housing. The primary and secondary housings include lower bodies and upper necks that have identical diameters. During assembly, the existing primary blowout prevention system is initially connected to the primary housing and the ram assembly is connected to the wellhead connector. When a blowout occurs, the primary housing is disconnected from the secondary housing to expose the upper neck of the secondary housing upon which a replacement primary blowout prevention system or cap may be attached.

Abstract: A backup blowout assembly for a subsea wellhead that is positioned between an existing blowout preventer system and the wellhead. The backup blowout assembly includes an independently operated shear/blind ram assembly that attaches to a standard wellhead connector that connects to the wellhead. The ram assembly includes an upper neck with an upper flange on which a dual housing assembly is attached. The dual housing assembly includes a primary housing longitudinally aligned over a secondary housing. The primary and second housings include lower bodies and upper necks that have identical diameters. During assembly, the existing primary blowout assembly is initially connected to the primary housing and the ram assembly is connected to the wellhead connector. When a blowout occurs, the primary housing may be disconnected from the secondary housing to expose the upper neck of the secondary housing upon which a replacement primary blowout assembly system or cap may be attached.