Abstract
Decommissioning offshore platforms present unique safety and health challenges to the oil and gas industry. In the Malaysian waters, there are over 300 fixed jacket platforms, and most of them exceeded the design service life of 25 to 30 years. One of the key challenges that determine the method of removal of aged jacket platforms is subsea cutting techniques. As underwater cutting is a challenging and expensive task, it is very much essential to develop cost-effective cutting techniques for decommissioning fixed jacket platforms. Thus, the objective of this paper is to present the state of art on Abrasive Water Jet (AWJ) cutting techniques by identifying the most significant parameters affecting the performance output measures for decommissioning of Jacket platforms applications. As the cutting process is very complex and times consuming tasks, the paper identifies research gaps and recommends new research areas in Multi Nozzles Abrasive Water Jet (MN-AWJ) for decommissioning applications. Many parameters are affecting the performance of AWJ that is why an in-depth critical review was adopted in this manuscript to determine the most significant parameters that need to be considered in the optimization of AWJ performance.
Highlights
The power of water and its erosive effect has been serving the mankind for hundreds of years especially in the Roman Empire [1, 2]
As reported by Huang, et al [16], in this type of Abrasive Water Jet (AWJ), the inlet tubes for the abrasive are arranged to be along the tangential direction of the mixing chamber, and a parallel point for air supply is provided at the abrasive inlet
A slurry pump is used to inject the abrasive into the nozzle
Summary
The power of water and its erosive effect has been serving the mankind for hundreds of years especially in the Roman Empire [1, 2]. The ancient Egyptians used sand combined with water for mining and cleaning. High-pressure water has been used for cutting in both forestry and mining. Abrasive waterjet is a manufacturing technique in which a high-pressure water stream mixed with hard particles removes material from a given object due to collision impact loads. This method is beneficial for processing hard or composite materials for engineering applications. The abrasive water jet system was applied for the first time in the United States. Modern industrial application of water jet technology was developed and get patented the concept of a high-pressure water jet cutting system in 1968 [3]
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