We provide the long experience and knowledge of a twenty-year industry leader in innovations, which means your single point moorings system will be safe and effective.
Our service includes accident prevention and emergency response consulting as well as forensic reconstruction modeling to find the flaw, which means you can have a collaborative partner in environmental response.
We offer the latest software analysis, OrcaFlex, which means you receive state-of-the-art recommendations and advise

Are there any professional companies providing single point moorings services?

Single Point Moorings for deepwater or turbulent water solve some of the historical issues with attempting to moor large vessels off the United States coast or even the North Sea. Engineer Consultants observe and review the normal environmental as well as the most extreme conditions in order to design robust moorings utilizing OrcaFlex software. Hydrodynamic analysis, modeling dealing with the motion of fluids, has evolved from scale models in aquarium-size tanks to sophisticated computer modeling. OrcaFlex includes riser analysis. Modern single point mooring systems are the latest evolution in this engineering discipline.

Yes, we are available for on line consultation.

Stewart Technology Associates (STA) have twenty years of expertise in the discipline of single point mooring. We provide consultation for mooring analysis such as spread moored systems and single point moored systems, which includes turrets, caternary anchor leg mooring (CALM), single anchor leg mooring (SALM), towers, submerged buoys, and more. We also provide consultation for harbor and jetty moorings, which accommodate large ships, small ships, dolphin interactions and passing ships. We can now gather remote weather and currents data, historical records of worst conditions, and installation data. We input these data into our computer models and understand the stresses working on any single point mooring system in your area. The design phase can then begin to assure safe deepwater mooring in accordance with industry standards such as the American Bureau of Shipping (ABS).

Are there any tools required for Single Point Moorings?

Stewart Technology Associates (STA) understands the performance of the structures used in a drilling operation measures in productivity, efficiency and safety. Our mooring analysis points out underperforming aspects of your moorings and suggests fixes. STA recommends adjustments to the operations or design of these structures for needed improvements. We include anchors, risers, wave power systems and other details to maximize the safety and efficacy of your site. We utilize the latest technology in our analyses. We use Orcina’s OrcaFlex.

OrcaFlex, the most powerful marine technology software available today, is used by more than 170 organizations all over the world to design and analysis marine projects. It is a comprehensive software solution that allows STA to perform a wide range of analyses. A key area of technological innovation for STA is single point mooring design. Using our 20 years of experience on a variety of mooring analysis projects, we assist you and achieve quality solutions. With the proper software and experienced engineers, we can overcome any obstacle to develop a workable and satisfactory solution for your mooring needs. Stewart Technology Associates (STA) is really the best choice to partner with to analyze your single point mooring challenges and find the correct solution.

What other things are included in single point mooring services?

STA brings the spirit of innovation, a passion for marine technology, and Mr. Stewarts integrity after advancing the industry for over twenty years now. His forward thinking and leadership has influenced the engineering team. We have a relentless pursuit of improvement and excellence. Our clients have every right to expect state-of-the-art mooring analysis. Our approach includes all the components of a system. Riser analysis, anchor analysis, and debugging existing systems are all part of the mooring analysis.

We provide formidable consultations during and after an incident to advise on oil spill cleanup. Our talents include forensic work to model the causes of spills or near mishaps. If your single point moorings are suspected as the cause of an accident or spill, we can investigate or oversee a forensic mooring analysis to determine the facts that led to the incident. We bring the same level of credibility when assessing your plans for emergency situations. You want to make sure your team is ready to react if an accident occurs and that your spill containment will be effective. The time to analyze these plans is before an accident and STA is ready to assist you. But we can also be there STA is here to help our clients any way we can. Let us prove ourselves to you. Call anytime, we’ll be there.

How Does Single Point Mooring (SPM) Offshore Operation Work?

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The primary aspect of the single point mooring (SPM) offshore operation is a special loading buoy that's anchored offshore. This buoy is designed to allow vessels to easily moor alongside for the efficient transfer of liquid freight, such as petroleum.

  • Location : Single point moorings are most useful in areas where dedicated offshore facilities aren't available for the regular loading and unloading of cargo. For example, a SPM might be anchored several miles from an onshore base
  • facility : A series of sub-sea pipelines then connects the base facility with the SPM. The benefits of this offshore connection include the ability to facilitate extra large vessels with high drafts, as well as saving on the time otherwise spent for ships to navigate an inlet and dock for traditional loading and offloading.
  • Mooring arrangement : Single point moorings are secured to the sea floor through a series of anchors, anchor chains, chain stoppers, and other ground tackle components. The anchor point secures to the sea floor, which connects to the anchor chains, which then connects to the buoy itself. The anchor points are set up according to the unique sea and wind conditions of the location. Once properly moored, the SPM is capable of moving freely within a set limits according to the wind, current, waves, and other extraneous factors such as the ship conditions.

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With a single point mooring (SPM), a floating buoy or other object is anchored offshore to facilitate the easy handling of volatile liquid and gas cargo like petroleum products. An offshore facility would primarily use a SPM in areas where it's unfeasible to have a more secure loading and unloading space for liquid and gases. This means they're generally found in places that are several miles away from a shore facility and are connected using undersea pipelines. 

How Single Point Mooring Offshore Systems Work:

Single Point Moorings are created by mooring the buoy body to the seabed using a complex mooring arrangement that includes heavy duty anchors, anchor chains and excess line, and chain stoppers. This arrangement is designed to allow the buoy to move freely within a given parameter. 

A part of the above-water buoy body consists of a rotating part that can be connected to operational vessels such as oil tankers (all single point mooring systems and the method of securing vessels to these systems should adhere to special offshore operation standards established by the Oil Companies International Marine Forum). Generally, a hawser-styled arrangement will attach boat to buoy. 

Once securely attached to the SPM, a product transfer system located at the center of the floating buoy body is also connected to the tanker with floating hose strings equipped with special breakaway couplings that'll prevent oil or other liquid spills. The necessary valves will be opened when all connections have been made and the liquid cargo is then able to be transferred from the central location to the tanker. 

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