Abstract: A system for tethering a subsea blowout preventer (BOP) includes a plurality of anchors disposed about the subsea BOP and secured to the sea floor, a plurality of tensioning systems, and a plurality of flexible tension members. Each tensioning system is coupled to a frame of the BOP and is configured to apply a tensile preload to one of the tension members. Each tension member is coupled to one of the anchors and extends from a first end coupled to one of the tensioning systems to a second end coupled to an anchor.

Abstract: A system for tethering a subsea blowout preventer (BOP) includes a plurality of anchors disposed about the subsea BOP and secured to the sea floor, a plurality of tensioning systems, and a plurality of flexible tension members. Each tensioning system is coupled to a frame of the BOP and is configured to apply a tensile preload to one of the tension members. Each tension member is coupled to one of the anchors and extends from a first end coupled to one of the tensioning systems to a second end coupled to an anchor.

Abstract: A pile top assembly includes an adapter configured to couple to an upper end of a subsea anchor, a tensioning system mounted on an upper end of the adapter, and a flexible tension member having a first end coupled to the tensioning system. The tensioning system is operable to pay in and pay out the flexible tension member relative to the tensioning system. The pile top assembly further includes means coupled to the adapter for selectively engaging the upper end of the subsea anchor.

Abstract: A pile top assembly includes an adapter configured to couple to an upper end of a subsea anchor, a tensioning system mounted on an upper end of the adapter, and a flexible tension member having a first end coupled to the tensioning system. The tensioning system is operable to pay in and pay out the flexible tension member relative to the tensioning system. The pile top assembly further includes means coupled to the adapter for selectively engaging the upper end of the subsea anchor.

Abstract: A pile top assembly includes an adapter configured to couple to an upper end of a subsea anchor, a tensioning system mounted on an upper end of the adapter, and a flexible tension member having a first end coupled to the tensioning system. The tensioning system is operable to pay in and pay out the flexible tension member relative to the tensioning system. The pile top assembly further includes means coupled to the adapter for selectively engaging the upper end of the subsea anchor.

Abstract: A pile top assembly includes an adapter configured to couple to an upper end of a subsea anchor, a tensioning system mounted on an upper end of the adapter, and a flexible tension member having a first end coupled to the tensioning system. The tensioning system is operable to pay in and pay out the flexible tension member relative to the tensioning system. The pile top assembly further includes means coupled to the adapter for selectively engaging the upper end of the subsea anchor.

Abstract: A system for tethering a subsea blowout preventer (BOP) includes a plurality of anchors disposed about the subsea BOP and secured to the sea floor. In addition, the system includes a plurality of tensioning systems. One tensioning system is coupled to an upper end of each anchor. Further, the system includes a plurality of flexible tension members. Each tension member extends from a first end coupled to the subsea BOP to a second end coupled to one of the tensioning systems. Each tensioning system is configured to apply a tensile preload to one of the tension members.

Abstract: A system for tethering a subsea blowout preventer (BOP) includes a plurality of anchors disposed about the subsea BOP and secured to the sea floor. In addition, the system includes a plurality of tensioning systems. One tensioning system is coupled to an upper end of each anchor. Further, the system includes a plurality of flexible tension members. Each tension member extends from a first end coupled to the subsea BOP to a second end coupled to one of the tensioning systems. Each tensioning system is configured to apply a tensile preload to one of the tension members.

Abstract: A device for bracing a subsea wellhead includes a wellhead coupling configured to be mounted to the subsea wellhead. In addition, the device includes a plurality of circumferentially-spaced anchor couplings disposed about the wellhead coupling. Each anchor coupling is radially spaced from the wellhead coupling and is configured to be mounted to a subsea anchor. Further, the device includes a plurality of circumferentially-spaced rigid wellhead support members. Each wellhead support member has a radially inner end coupled to the wellhead coupling and a radially outer end coupled to one of the anchor sleeves. The wellhead support members are configured to transfer lateral loads from the wellhead coupling to the anchor coupling.