Platforms structures

Drilling Jackets are small steel platform structures which are used in areas of shallow and calm water. A number of wells may be drilled from one jacket. If a jacket is too small to accommodate a drilling operation, a jack-up rig (see below) is usually cantilevered over the jacket and the operation carried out from there. Once a viable development has been proven It is extremely cost effective to build and operate jackets in a shallow... 

Immediately after this blast, a fire originated at the west end of B Module and erupted into a fireball along the west face. The fire spread quickly to neighboring portions of the platform. Approximately 20 minutes later, a major explosion happened due to the rupture of the Tartan gas riser. This occurrence caused a massive and prolonged high pressure jet of flames that generated intense heat. At about 10 50 PM, another immense blast occurred that was believed to be a result of the rupture of the MCP-01 gas riser. Debris from this explosion was projected up to 800 m. away from the platform. Structural deterioration at the level below Module B had begun. This failure was accelerated by a series of additional explosions. One of these eruptions was caused by the fracture of the Claymore gas riser. Eventually, the vast majority of the platform collapsed. 

Fig. 9.23 Welded areas of an offshore platform structural tubular displaying premature corrosion due to (a) lack of surface grinding (resulting in poor paint adhesion and performance) and (b) the fact that the weld metal is anodic relative to the parent material of the tubular...

Fujimoto et al. [77] synthesized a novel phase by coupling a dodecylamino-substituted P-cyclodextrin (P-CD) to 3-glycidoxypropyl-derivatized silica gel. The surface coverage of this phase was reported as 0.37 xmol/m, which amounts to a surface coverage of 2.6 xmol/m for C12 chains (seven chains per fi-CD). An increase in shape selectivity was observed when compared with a conventional Cis monomeric phase as determined by selectivity differences between j9/m-terphenyl, j9/o-terphenyl, and coronene/phenanthro[3,4-c]phenanthrene solute pairs and was attributed to the localized high ligand density as constrained by the fi-CD platform structure. 

The playground had a circular play area full of sand. There was a log-platform structure, with chains hanging from it, in the circular area and a slide on one side. The agent team climbed on the structure, stood on the platform, slid down the slide, and took off their shoes in the sand. There were also swings next to the play area and a jungle gym next to the sidewalk. 

In the aerospace industry, resinous polymers encompass a wide variety of hardware applications for aircraft, missiles, and space structures. In aircraft, resins are used as a matrix material for primary (flight-dependent) and secondary fiber-reinforced composite (FRC) structures, adhesives for the bonding of metal and composite hardware components, electronic circuit board materials, sealants, and radomes. Missile applications include equipment sections, motor cases, nose cones, cartjon-carbon composites for engine nozzles, adhesive bonding, and electronics. As the exploration of outer space intensifies, applications will become even more exotic. FRC will be used to construct telescopes, antennas, satellites, and eventually housing and other platform structures where special properties such as weight, stiffness, and dimensional stability are important. 

Information about the identified hazards (energy damage) The platform structural design must take into account the risk of a destroyed platform. 

High structural loading, especially wind loading on the platform due to weight and height, which increased the investment in platform structure. 

Includes those employees engaged in activities related to offshore construction, piping, platform structural modifications, major equipment additions, pipelines, major painting activities,... 

If the evacuation systems are not effective, personnel may decide to escape directly to the sea. When someone jumps directly into the water, he or she could die quite quickly if the water is cold. Moreover a person may hit part of the platform structure during his or her descent. 

Supplementary to the a.m. pre-engineering work, DETEC has provided an In-Situ-Concept for the dismantling of the reactor vessels envisaging the use of Master-Slave-Manipulators. Furthermore, the DETEC concept provides an essential feature in terms of using a platform structure which closely connects to the outer reactor vessel and which descends with the progress in dismantling the reactor vessels. 

Dr Kim was a consultant to the US Naval Civil Engineering Laboratory in Port Hueneme and became a resident consultant to the Science Engineering Associates where he investigated wave forces on the Howard-Doris platform structure, now being placed in Ninian Field, North Sea. 

The risk that any objects (e.g trackside, platform mounted or the platform, structures etc) infiinges the Kinematic envelope of the rolling stock is reduced in line with risk principle... 

The detailed design called for GEC sleeves 80 cm in diameter with a spacing density between 17% and 20%. In addition, three layers of high-strength polyester woven reinforcement were laid above the heads of the GECs as a basal platform structure. Over 10,000 GECs and more than 80,000 m of woven reinforcement were installed (Fig. 16.8). 

---