Offshore Drilling

The Introduction brought us quickly from the very early days of the oil industry to today’s jack up drilling units, semisubmersibles, and drill ships. Technical Data used in the field explained in petroleum courses in Islamabad.   This section will discuss the planning, preparation, and equipment necessary to conduct a typical floating drilling operation . Focus will be primarily on floating drilling because operations from jackups, submersibles, and platforms generally follow land drilling practices. The last portion of the section will be devoted to special considerations, such as deep water and high-current drilling and considerations  for cold and hostile environmental conditions. For a general discussion of the technology of offshore drilling, completion, and production.

The culmination of the sometimes arduous and complex task of geologic evaluation of a potential offshore play is for the exploration geologist to put a finger on the map and say “drill here.” This decision sets in motion a series of actions that will eventually lead to the drilling of an offshore well.

The first major step is to select a rig to drill the well. Because all rigs have specific operating criteria and limits, however, certain data must be known about the drillsite and surrounding area. Basic rig selection criteria consist  of water depth, expected environmental conditions during the forecasted drilling period (wind, waves, current profile, and climatological conditions), distance from nearest dock facility, and availability of consumable supplies (such as drilling mud, cement, pipe, rental tools, and spare parts). Some more details of petroleum courses in islamabad are as under.

Water Depth. A rough idea of the water depth is an important criterion for rig selection. If the water depth does not exceed approximately 350 ft, any of the three ma.jor rig types can be considered. Jackups can handle a water depth range from their shallow draft limit of 20 to 30 ft to a maximum depth of 350 ft. The maximum depth limitation is a function of other environmental constraints, such as wind, wave, and current conditions at the site. Severe conditions tend to lower the jackup rig’s maximum water-depth capacity. TSK Training for Skills and Knowledge is the best institute in Rawalpindi Islamabad for Pakistani Students who wants to join oil field after petroleum courses in Rawalpindi.

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