Cross and Horizontal Bracing Outer Diameter - Engineering Assignment Help

Assignment Task :

1. a. FIGURE Q1a shows a typical jacket platform with 25 conductors need to be  fabricated at a fabrication yard at Johor Bahru and installed at a new field in  Sabah with water depth of 350 m. The jacket platform has been designed with  the following primary dimensions: 

• Topside dimensions: 62 m x 56 m 
• Legs’ outer diameter: 2.5 m 
• Cross and horizontal bracing outer diameter: 0.9 m 
• Dimensions of the mudmat: 22 m x 20 m 

As a lead engineer in your company, you have been given a task to prepare a  detailed technical report for the installation of the platform and its topside, i.e.  from fabrication to commissioning. Your report is going to assist the company  in identifying the details of the equipment required to accomplish the  installation task, in addition to estimate the time required for each installation  stage. You need to provide assumptions with justifications and references for  all relevant data. 

b. There is a plan by a global oil and gas operator to install a jacket platform. Your  company has been awarded the tender with the scope of work limited to design  only. You have been assigned by your superior to determine the total wave  and current forces acting on the jacket leg AB as shown in FIGURE Q1b below for a period of time between 100 sec and 200 sec. The jacket leg inner diameter  (in m) and its wall thickness are equal to your last digit in your student ID plus  3 and 350 mm respectively Consider assignment 1 metocean data under your  name. Assume mass density of sea water as 1025 kg/m3.

hint: 

if your student ID is 17001213, the jacket leg inner diameter is going to be  3+3=6 m

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