Derrick

A derrick is a structure over an oil well which supports the drilling equipment and allows it to be lifted into and out of the wellbore.

The term derrick originates from Thomas Derrick, an English executioner c. 1608.

In English history, the executioner was not a commonly chosen career path because of the risk of friends and families of the deceased knowing who the executioner was and where to find him. Executioners were sometimes coerced into the role. Derrick in particular had been convicted of rape but was pardoned by the Earl of Essex (clearing him of the death penalty) on the condition that he became an executioner at Tyburn.

Derrick executed more than 3,000 people in his career, including his pardoner, the Earl of Essex, in 1601. Derrick devised a beam with a topping lift and pulleys for his hangings, instead of the old-fashioned rope over the beam method.

The word derrick became an eponym for the frame from which the hangman's noose was supported and through that usage (by analogy) to modern-day cranes.

Derrick removal.

Hello, 

Today id like to show, the first couple of lifts. 

Above image the rope access riggers, install the cranes lifting equipment. 

Once landed the derrick is then sea fastened (welded) to the deck of the S7000.

The next lift to be completed was the helideck. 

It was amazing to see these huge bits of an oil rig, look almost insignificant against the huge Saipem S7000 cranes. 

Thanks