Structural design of an offshore hydraulic energy-storing workover rig

A Framework to Select the Best Strategy for Iran's Entry into the Repair and Maintenance Market of Oil Drilling Rigs

“…The jack-up rigs have various main components, which are generally divided into two categories: 1) rig structure components such as hull, leg and jacking system; and 2) components that are installed for drilling operations, including various drilling systems such as mud circulation systems. From the beginning, the R&M of components were the concern of rig-owning companies, which have become more important as they have become more complex and more developed [2,26].…”

“…For major repairs of oil-drilling rigs, a large space and fixed guiding railways are required, which leads to a failure in R&M operations for small-and medium-scaled marine systems because of the high and inevitable production, transport, and installation costs, and the pollution produced in the environment will be considerable. Therefore, providing the required infrastructure on land is costly, and a new type of R&M is needed using low-volume equipment and lower energy consumption [2,26].…”

“…Due to the large part of the operations in the land workshop, the rig repairs often require a large workspace and guiding rails. The provision of the required infrastructure in the land is costly; so, it is suggested to use low-volume equipment and lower energy consumption [2].…”

Identifying the required infrastructure to improve the jack-up maintenance process based on effective criteria in the Persian Gulf

“…The main questions of this research are: which equipment is needed for rigs R&M, what kind of equipment the shipyard has, which equipment is more efficient and what criteria in rigs R&M are important for experts and owners. Other research has focused on repairing the jack-ups' legs, fixing the corrosion of the bodies and legs and mentioning criteria such as cost and time (Pisano et al , 2019; Guede, 2019; Shazzad Hosaain et al , 2018; Apergis et al , 2017; Kaiser, 2017; Zhao et al , 2014; Kaiser and Snyder, 2013; Xian-Gang and Yong, 2012; Pande et al , 2013; Perrons and Richards, 2013; Cao et al , 2012; Zhang et al , 2012; Kaiser, 2008; Shabakhty et al , 2003; Morandi et al , 2001), while other important criteria are not investigated. In addition, past studies have only touched on the types of shipyards and their equipment (Li et al , 2018; Nam et al , 2017; Ha et al , 2015; Namkug and Ha, 2014; Kaiser and Snyder, 2013; Cao et al , 2012; Celebi and Vardar, 2008; Celebi and Vardar, 2006) failing to survey all required equipment.…”

“…Other research has focused on repairing the jack-ups' legs, fixing the corrosion of the bodies and legs and mentioning criteria such as cost and time (Pisano et al , 2019; Guede, 2019; Shazzad Hosaain et al , 2018; Apergis et al , 2017; Kaiser, 2017; Zhao et al , 2014; Kaiser and Snyder, 2013; Xian-Gang and Yong, 2012; Pande et al , 2013; Perrons and Richards, 2013; Cao et al , 2012; Zhang et al , 2012; Kaiser, 2008; Shabakhty et al , 2003; Morandi et al , 2001), while other important criteria are not investigated. In addition, past studies have only touched on the types of shipyards and their equipment (Li et al , 2018; Nam et al , 2017; Ha et al , 2015; Namkug and Ha, 2014; Kaiser and Snyder, 2013; Cao et al , 2012; Celebi and Vardar, 2008; Celebi and Vardar, 2006) failing to survey all required equipment. The purpose of this article is to identify the effective criteria to improve the efficiency of shipyards and determine the required infrastructures to repair the drilling rigs.…”