ANSYS Applications
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ANSYS Applications in Oil and Gas Industry
The challenges facing the oil and gas industry are simply the use of technology to overcome the risks associated with finding and producing resources at a reasonable cost. The industry is under tremendous pressure due to a recent drop in prices. At the same time, advances in seismic technology used in exploration have been essential in finding hydrocarbons in all types of formations. Today, the challenge is to develop these areas in a safe, reliable and sustainable manner. Industry must invest in the development of new technologies to reduce costs and ensure profitability while meeting increasing regulatory requirements.
We deliver class-leading software and employs a network of technical experts who work with oil and gas customers around the world. We foster close relationships with energy industry customers, and provide targeted solutions backed by local service and support.
This gallery highlights some recent examples of best-in-class solutions.
Schlumberger: Cost-effective deployment of pipe strings in oil wells
Accurate nonlinear structural mechanics simulation makes it possible to predict the behavior of the pipe string as it undergoes complex buckling that often results from fluid injection opera-tions. The latest simulation methods enable engineers to design pipe strings and downhole tools with the capabilities to handle the more challenging wells being drilled today.
Schlumberger, the world’s leading supplier of technology solutions to the oil and gas industry worldwide, performs well tests to obtain important measurements, such as flow rate and bottomhole pressure, to characterize petroleum reservoirs.
Schlumberger has developed a new approach employing ANSYS Mechanical BEAM188 elements that provides a more accurate method of simulating helical buckling in a well test string sealed in a packer
Schlumberger Limited is a multinational oil services and equipment company.
Cognity Ltd: The first steerable conductor for enhanced oil recovery
One of the biggest challenges in offshore drilling is accurate placement of the conductor casing.
Engineering consulting firm Cognity limited has addressed this problem by developing a steerable conductor that can provide real-time accurate positioning.
By using ANSYS mechanical software in the ANSYS Workbench platform, Cognity engineers doubled the load-carrying capacity of the steering mechanism, allowing the conductor to be maneuvered in very deep soils.
Cognity’s design is the first to allow the conductor to be steered in real time from the drilling platform, which enables very accurate control of the final position. the benefits of such a system include possible increased production and reduced drilling costs through elimination of junk slots.
Cognity, a consulting firm specializing in mechanical design, particularly for the oil and gas market. The company uses ANSYS software to save time and money early in the design process.
Natco Group Inc.: The flow inside a gas-oil separator on a production platform
A floating platform can experience six degrees of wave motion. These are known as surge, sway, and heave (axial motions), and pitch, roll, and yaw (twisting motions).When combined, these motions act to mix the gas, oil and water in the separator, which is counter-productive to separation.
Using the volume of fluid (VOF) model in FLUENT, Natco engineers were able to simulate the transient sloshing motion of oil, gas, and water inside a separator. Both normal and storm sea states were studied
CFD simulations were run with and without baffles to study their effect on sloshing and mixing. It was found that the baffles were not able to substan-tially suppress the sloshing motion and resultant oil-gas mixing.
In fact, if not properly placed, the baffles could aggravate fluid short-circuiting in the separator. A new baffle system was then proposed that included strategically placed perforated plates.
NATCO Group is a company that provides processing equipment, systems and services used in the production of oil and gas.
ITMA Materials Technology: Simulation of a storage tank
ITMA Materials Technology - a Spanish company focusing on applied research and development in the field of materials science — uses multiphysics simulation to optimize materials performance.
An engineering team at ITMA used ANSYS CFD and ANSYS Mechanical software to perform fatigue analysis of a storage tank. Because this tank has to perform reliably under extreme temperature changes, ensuring its structural integrity is critical
Using the physics integration capabilities in ANSYS Workbench, ITMA researchers first conducted transient analyses of the tank’s start-up and shut-down cycles in ANSYS CFX, then transferred the temperature distributions to ANSYS Mechanical.
Optimizing Fuel Reformers
Fuel reformers and cracking furnaces contain a combustion chamber in which heat is generated using burners. This heat is transferred to serpentine tubes carrying process steam.
These tubes must uniformly heat the flow for effective cracking. To gain maximum efficiency and eliminate hot spots that can lead to fouling and tube failure, equipment designers must understand the interactions between 3-D combustion in the furnace and 1-D exothermic chemical reaction within the process tubes.
ANSYS CFD software uses a channel model to simulate complex reformers and cracker furnaces in less time by coupling the desired 1-D to 3-D reactions in one integrated simulation.
Comprehensive multiphysics analysis of equipment launch
Accurately simulating the motion and behavior of offshore and subsea structures during equipment launch requires the use of a full set of solutions — including hydrodynamics, fluid mechanics and structural mechanics.
ANSYS comprehensive solutions for fluid–mechanical systems simulation help engineers to fully understand and optimize the successful launch of complex equipment.
Recently, results for a fluid–structure interaction approach using ANSYS solutions was demonstrated on a 58-metric-ton subsea manifold.
Transient simulations were conducted to calculate fluid forces, which in turn were used to calculate the structural response of the manifold through the splash zone.