While the mechanics of drilling a well are very similar for floating, bottom-founded and onshore operations, the po-tential safety and environmental consequences of an inci-dent ofshore,. .
Another proactive step typically taken to mitigate the in-creased risks of ofshore operations is a shallow hazard assessment, which will examine the risks that might be. .
Simultaneous operations plans (SIMOPs) are developed to consider additional risks that occur when two work activities are being done at the same time within close proximity to one another. Communication of SIMOPs risks and hazards during floating drilling. .
Several proactive steps are typically taken to mitigate the in-creased risks of ofshore operations. One of these proactive measures is an environmental impact assessment (EIA), a. .
Hazard assessments are also conducted for ofshore safe-ty concerns. Safety cases identify the hazards and risks of various operations, and then document how the risk is controlled and.
[pdf] 
Barge rigs work in shallower waters, usually less than 20 feet deep. After being floated to the drilling location, the hull is brought to rest on the ocean floor, creating a stable platform for drilling. Many barge rigs operate in the Gulf of Mexico and around the world. .
In waters too deep for a barge, but less than 50-70 feet deep, a submersible rig can be used. Columns or posts are submerged into the water and filled to specific levels that determine. .
As we move into deeper waters, a mobile platform called the “jack-up” rig comes into play. It gets this name because it can be moved directly over the location to drill or pump oil. The. .
Many offshore oil rigs are anchored platforms. They use a steel framework anchored to the ocean floor as a foundation for a surface drilling rig, equipment, and living quarters. Platforms may drill in many directions from this base, and they are broken down into specific types suited for various depths. .
In very deep water, it is not practical to attach an offshore rig to the bottom of the ocean. Floating oil rigs are kept in place by anchors or dynamic positioning systems that keep them over target. There are several types of floaters in use at various deep water drilling locations worldwide.
[pdf] The XLE4 is based on the design of the three existing rigs, but will have several modifications and incorporate enhanced features to improve efficiency, safety and onboard logistics that will make it the largest and most advanced jack-up rig in the world. These include dual pipe handling to maximise uptime and. .
In the North Sea, the Maersk drillship Gallant has drilled to an even greater depth. In August, the company reported that at a total depth of 5,941 metres, it had beaten the record for. .
Maersk Drilling’s chief commercial officer Ana Zambelli says the new drilling technology is the differentiating factor for customers when oil prices are so low. Offshore installation manager Craig Fraser adds: “It’s a demanding industry. Clients want performance. .
The bottom line for Maersk, as it is for other companies, is to drive down costs. Senior commercial advisor Erik Schou has been prominent in the build-up of Maersk Drilling’s activities in.
[pdf] 
