HOUSTON -- Helix Energy Solutions has installed two 86-ton (78-metric-ton) pipeline-end-termination (PLET) modules on the Thunder Hawk field in the Gulf of Mexico.
A total of four PLETs were installed, including two 8-in. (20-cm) infill flowline units, and two 12-in. (30-cm) modules for tie-back into the Mardi Gras export lines. The individual mud-matted PLETs measured 40-ft x 40-ft (12 x 12 m) with 20-in. (51-cm) connectors for the gas export line and 16-in. connectors to the oil line. With the connected 12-in. (30-cm) pipeline, the PLETs weighed up to 200 tons (181 metric tons) each. Helix is in the preparation phase of installing 16-in. (41-cm) and 20-in. (51-cm) export jumpers associated with the PLETs. Spitzer Industries fabricated the PLETs at its Green Bayou facility near Houston.