semi submersible drainage holes in main deck

Heat shield deck for Ichthys Project - PcP. – Gratings and stair treads

PcP.s largest heat shield deck and service platform for the offshore industry. on one of the largest semi-submersible rigs protects the lower decks and the rest holes and 6 mm drainage holes classifies as R11 slip resistance according to

Get Price
Ocean Structures and Materials Dr. Srinivasan - nptel

The deck mating is done by lifting the deck using an offshore semisubmersible kept on a barge and being go to site for exploratory drilling. So, we call works. Hence the basic idea of offshore construction methodology should be to .. floods coastal areas and it causes serious of changes in drainage patterns and create.

Get Price
fundamental behaviour of offshore platform steel decks under

plate behaviour in a stiffened steel-plated deck under fire conditions. However, there are two main structural forms of offshore top-side, namely the The Petrobras platform 36 was a floating semi-submersible processing platform with the Emergency Drain Tank (EDT) was severed due to an over-pressure and thus.

Get Price
Production FLETs Thermal Analysis - BIBSYS Brage

Evaluation of Ballast Failures during operations of Semi-submersible rigs (FMECA) of the main components of the semi-submersible's ballast system by determining equipment, variable deck load, environmental specification and water depth A ruptured emergency drain tank in a column initiated an explosion that.

Get Price
Issues in offshore platform research - Part 1: Semi-submersibles

Semi-submersibles are used for various purposes in offshore and marine . The ballast tanks are flooded to lower the well deck below the water surface. The utility riser systems consist of seawater lift, firewater lift, and overboard drain lines. Up to 1980's, the oceans were treated like black holes that can absorb

Get Price
ED Offshore Inspection Guide - Loss of stability and positioning - HSE

For semi submersible installations this will typically require, the Stability courses 1, 2 and 3 .. Each bilge suction consists of a well into which the bilge water drains and the well is normally . all, thus reducing the number of separate ventilation runs from the main deck. .. over time, individuals have cut or burnt holes in the.

Get Price
Semi-submersible wind farm installation vessel for Blekinge Offshore

Semi-submersible, Offshore installation, Wind turbine, Gravity foundation, . Main deck is covered with lifting appliances and equipment for installation and Sewage. 6.1. 9. Dirty Oil. 7.0. 20 Grey water. 6.1. 10. Bunker. 16.7. 21. turbine to the installation vessel during transport but also enable access to the holes in the.

Get Price
MARITIME DICTIONARY – Officer of the Watch

2H, Second Half Access Holes, Holes cut in ship's structure to permit entering or leaving It regards the water which has entered as an added weight, the basic hull After deck, A term applied to a deck aft to the midship portion of a vessel. .. to provide for drainage of the compartments when the vessel is in dry dock.

Get Price
minimum deck height of a semi-submersible platform according to

Keywords: semisubmersible platform, minimum deck height, Black Sea. INTRODUCTON In order to prevent the lower deck surface from wave slamming, the

Get Price
2-11 Subsea Drilling, Well Ops & Completions Paper - The National

Semi-submersible drilling rigs are the most common type of offshore Subsea completions typically contain an upper completion, a lower completion, and a

Get Price
Offshore Drilling and Jack-Up Rigs for Dummies – Templato

Jul 16, 2014 This is a basic, broad introduction to offshore drilling and jack-up rigs. A deck called a top-side is lifted on top of the jacket. necessary for the oil and gas company to move the rig to the desired location and drill a hole called a well. .. Sometimes called a semi-sub or semi, this is another type of MODU.

Get Price
Bridge Drainage :: English

EnviroDeck and EnviroBridge are simple and effective bridge drainage Main aspect of the design is the continuous array of openings in the kerb along the road. of the road surface as the so-called sub-surface water quickly and effectively off. The units are equipped with drainage holes 3 per half meter element - the

Get Price
DNV Ship rules Pt.5 Ch.7 - Offshore Service Vessels, Tugs and

Jul 1, 2010 ognized standard. Main changes coming into force 1 January 2011. . Sec.21 Semi-Submersible Heavy Transport Vessels: new sec- tion freeboard deck. Furthermore, the ered to ensure the most effective drainage of water trapped in pipe deck cargoes strum holes is not to exceed 2 m/s. F 400.

Get Price
DNV-OS-C201: Structural Design of Offshore Units - Rules and

Text affected by the main changes in this edition is highlighted in red colour. However Table D1: added “DDS - Deep draught semi-submersible unit”. D506: added “Air gap and green water (Wave-on-Deck) are to be considered. design shall include current drain to any electrically connected items for which cathodic

Get Price
Install a deck foundation RONA

A sound deck foundation is absolutely basic for a one or two-level deck. Pack the bottom of each hole and add a 6" layer of 0-" crushed stone for drainage.

Get Price