[Posted on March 10th, 2015 by Bill Stewart]
The ASCE is constantly working to help engineers and many engineers are part of the association. However, there is something to be said about the need for third party analysis. There are various forms of analysis that you can explore in order to give you more confidence with moving forward with a project and ensuring the right materials are selected.
Structural Design Analysis
Any new structures need to be analyzed from the very beginning. If the design has flaws, they need to be defined early on to avoid problems once weight is added and once the structure is put into use. Particularly within the gas and oil industry, rigs will need to go through this kind of analysis and engineers within the ASCE may need third party analysis, which is where Stewart Technology Associates comes in.
Not everyone in the ASCE has taken a course on hydrodynamics and therefore it is important to obtain the needed information about how the behavior of water can affect engineering as a whole. This includes learning about energy, momentum, and drag forces to ensure that the correct materials are used and that the design is stable enough given the environment it will be exposed to.
It’s imperative to understand the options available with moorings and buoys. Many companies will utilize single point moorings within the deeper waters, though there are other options to consider as well. Analysis of the overall situation will help a company to determine what is going to be best to provide stability. When a rig is planning on using a mooring as a half-way station for filling up fuel as well as dropping off barrels, the mooring needs to be stable enough to accommodate.
Anchor analysis is a must when dealing with anything offshore. The waves, the weight of the anchor, and the stability of the soil are all considerations when looking at what kind of anchor to use. If the wrong anchor is used, it may not reach the bottom of the ocean floor. It could also drag along the bottom, causing a rig to drift as well as causing a lot of damage to the ocean floor. The analysis can be run through Orcaflex and provide you with the needed numbers to know what needs to be used.
The risers within an oil rig are an important part of the uptake system. If the risers are not made of the right material or structured in a necessary way, movement within the water can cause a disconnect and an oil spill. Many of the spills that have occurred over time are because of riser issues. The analysis can ensure this does not happen. Data can be crunched and worst case scenarios can be taken into account as well to avoid problems.