Abstract: A tool for retaining an activator ring of a hanger within a wellhead assembly during a fluid pumping process includes an annular fluid pumping sub body having an end selectively coupled with a supply of fluids and a distal end selectively coupled with the hanger. An outer ring assembly circumscribes and rotates relative to the fluid pumping sub body. A retainer ring circumscribes the fluid pumping sub body and selectively abuts the activator ring. A plurality of biasing assemblies that are selectively compressible are located between the outer ring assembly and the retainer ring, so that when the fluid pumping sub body is coupled with the hanger, an axial lockdown force is maintained on the activator ring by the biasing assemblies during the fluid pumping process.

Abstract: A casing head assembly for landing on a stem head of a floating structure can include a stem head adapter assembly that includes a ring shaped stem head adapter plate. A solid upper ring is spaced axially above the stem head adapter plate, defining an adapter gap between the upper ring and the stem head adapter plate. At least one load cell can have a first end that is supported by the stem head adapter plate and a second end that engages the upper ring. At least one piston assembly is selectively secured to the upper ring. The casing head assembly also includes a casing head landed on, and secured to, the upper ring of the stem head adapter assembly. The load cell is selectively constrained between the upper ring and the stem head adapter plate by a load on the casing head.

Abstract: A casing head assembly for landing on a stem head of a floating structure can include a stem head adapter assembly that includes a ring shaped stem head adapter plate. A solid upper ring is spaced axially above the stem head adapter plate, defining an adapter gap between the upper ring and the stem head adapter plate. At least one load cell can have a first end that is supported by the stem head adapter plate and a second end that engages the upper ring. At least one piston assembly is selectively secured to the upper ring. The casing head assembly also includes a casing head landed on, and secured to, the upper ring of the stem head adapter assembly. The load cell is selectively constrained between the upper ring and the stem head adapter plate by a load on the casing head.

Abstract: A tool for retaining an activator ring of a hanger within a wellhead assembly during a fluid pumping process includes an annular fluid pumping sub body having an end selectively coupled with a supply of fluids and a distal end selectively coupled with the hanger. An outer ring assembly circumscribes and rotates relative to the fluid pumping sub body. A retainer ring circumscribes the fluid pumping sub body and selectively abuts the activator ring. A plurality of biasing assemblies that are selectively compressible are located between the outer ring assembly and the retainer ring, so that when the fluid pumping sub body is coupled with the hanger, an axial lockdown force is maintained on the activator ring by the biasing assemblies during the fluid pumping process.