An enlarged pipe at the top of a casing string that serves as a funnel to guide drilling tools into the top of a well. The bell nipple is usually fitted with a side outlet to permit drilling fluids to flow back to the surface mud treating equipment through another inclined pipe called a flowline.
[pdf] A trip tank is a low-volume, calibrated tank that can be isolated from the remainder of the surface drilling fluid system and used to accurately monitor the amount of fluid going into or coming from the well.
[pdf] The platform has three decks or topsides which support the oil and gas processing units, a drilling rig and living quarters for the workers. The topsides were designed by Alliance Engineering and constructed by Kiewit Offshore in Corpus Christi, Texas.OverviewPerdido (Spanish for lost) is the deepest floating in the world at a water depth of about 2,450 meters (8,040 feet) operated by the in the . The platform is located in the Perdid. .
The and the topsides of the Perdido were constructed separately and then assembled in its final position in the Gulf of Mexico. The Perdido's hull or spar was constructed by.
[pdf] 
