Effectiveness of desktop survey utilizing 3D model for development of piping work pack for offshore maintenance project /
Suratno Adi Saputro
Effectiveness of desktop survey utilizing 3D model for development of piping work pack for offshore maintenance project / suratno Adi Saputro - Bandar Seri Begawan : Universiti Teknologi Brunei, .2024. - xii, 110 pages ; illustrations ; 30 cm.
Submitted in fulfillment of the requirements for degree of Master of Science Piping work pack is a document defines the scope of work, activities and materials required to execute the project maintenance for piping scope. Site survey is a mandatory process in the development of piping work pack for offshore maintenance project.
Sometimes it cannot be completed as per schedule due to some reasons such as: bad weather, operation priority, unavailability of seat for offshore traveling and sometimes movement restriction due to any pandemic situations such as Covid 19, Monkeypox, etc.
These situations may give uncertainty on the ability of design team to deliver the design engineering work pack as per schedule. The alternative way of survey is to do desktop survey utilizing 3D model. However, it requires assessment on effectiveness of this desktop survey on its quality performance, productivity, and cost prior to utilize it as a new norm in the development of piping work packs for offshore maintenance project.
This research aimed to assess the effectiveness of this desktop survey. Sample of 5 offshore maintenance projects with total 342 piping work packs developed with site survey and 160 piping work packs developed with desktop survey were taken from Brunei Shell Petroleum (BSP) offshore restoration, maintenance, and construction (ORMC) project. The assessment on effectiveness was done using statistical comparative analysis between site survey and desktop survey using T-Test and Mann-Whitney methods with
confidence interval 95% (a = 5%). Based on this analysis, it was found that desktop survey
has no significant difference on quality performance ratio with site survey (P-value is
0.451), it means desktop survey has same quality performance with site survey. While for productivity, it was found that there is significant difference between site survey and desktop survey (P-value is 0.038), it means desktop survey has significant higher productivity than site survey. Similar decision was made also for Cost ratio for desktop survey without laser dimensional scanning (LDS), there is significant difference between desktop survey (without LDS) and site survey (P-value is 0.000), it means that desktop survey (without LDS) has significant higher cost efficiency than site survey. However, when the LDS is required due to unavailability of 3D model, there is no significant difference on the cost ratio between desktop survey (with LDS) and site survey (P-value is 0.144), it means desktop survey (with LDS) has same cost efficiency with site survey.
Based on the assessment for overall indicators (quality, productivity, and cost), it was found that desktop survey without LDS has a significant different with site survey (P-value is 0.018), It means desktop survey without LDS has ability to improve its effectiveness significantly better than site survey. While for desktop survey with LDS, it has no significant difference with site survey (P-value is 0.803). It means desktop survey has ability to maintain its effectiveness same as site survey. Even for some indicators such as productivity and cost (desktop survey without LDS), it can improve its performance.
The result was also validated by applying desktop survey to another similar maintenance project and analysing using the same method. It was found that there is no significant difference on the effectiveness between the previous projects with the new similar project (P-value is 0.936). Hence it can be concluded that desktop survey utilizing 3D model is proven and can be used as an alternative way of working for development of piping work pack for offshore maintenance projects in lieu of conventional site survey.
Thesis (Degree of Master) - Universiti Teknologi Brunei
Includes bibliographical references from page 107-110
--Universiti Teknologi Brunei--Thesis--Final Year Report --Universiti Teknologi Brunei
Mechanical engineering --piping work pack
Dissertation, academic
Thesis writing
Dissertation Universiti Teknologi Brunei
Effectiveness of desktop survey utilizing 3D model for development of piping work pack for offshore maintenance project / suratno Adi Saputro - Bandar Seri Begawan : Universiti Teknologi Brunei, .2024. - xii, 110 pages ; illustrations ; 30 cm.
Submitted in fulfillment of the requirements for degree of Master of Science Piping work pack is a document defines the scope of work, activities and materials required to execute the project maintenance for piping scope. Site survey is a mandatory process in the development of piping work pack for offshore maintenance project.
Sometimes it cannot be completed as per schedule due to some reasons such as: bad weather, operation priority, unavailability of seat for offshore traveling and sometimes movement restriction due to any pandemic situations such as Covid 19, Monkeypox, etc.
These situations may give uncertainty on the ability of design team to deliver the design engineering work pack as per schedule. The alternative way of survey is to do desktop survey utilizing 3D model. However, it requires assessment on effectiveness of this desktop survey on its quality performance, productivity, and cost prior to utilize it as a new norm in the development of piping work packs for offshore maintenance project.
This research aimed to assess the effectiveness of this desktop survey. Sample of 5 offshore maintenance projects with total 342 piping work packs developed with site survey and 160 piping work packs developed with desktop survey were taken from Brunei Shell Petroleum (BSP) offshore restoration, maintenance, and construction (ORMC) project. The assessment on effectiveness was done using statistical comparative analysis between site survey and desktop survey using T-Test and Mann-Whitney methods with
confidence interval 95% (a = 5%). Based on this analysis, it was found that desktop survey
has no significant difference on quality performance ratio with site survey (P-value is
0.451), it means desktop survey has same quality performance with site survey. While for productivity, it was found that there is significant difference between site survey and desktop survey (P-value is 0.038), it means desktop survey has significant higher productivity than site survey. Similar decision was made also for Cost ratio for desktop survey without laser dimensional scanning (LDS), there is significant difference between desktop survey (without LDS) and site survey (P-value is 0.000), it means that desktop survey (without LDS) has significant higher cost efficiency than site survey. However, when the LDS is required due to unavailability of 3D model, there is no significant difference on the cost ratio between desktop survey (with LDS) and site survey (P-value is 0.144), it means desktop survey (with LDS) has same cost efficiency with site survey.
Based on the assessment for overall indicators (quality, productivity, and cost), it was found that desktop survey without LDS has a significant different with site survey (P-value is 0.018), It means desktop survey without LDS has ability to improve its effectiveness significantly better than site survey. While for desktop survey with LDS, it has no significant difference with site survey (P-value is 0.803). It means desktop survey has ability to maintain its effectiveness same as site survey. Even for some indicators such as productivity and cost (desktop survey without LDS), it can improve its performance.
The result was also validated by applying desktop survey to another similar maintenance project and analysing using the same method. It was found that there is no significant difference on the effectiveness between the previous projects with the new similar project (P-value is 0.936). Hence it can be concluded that desktop survey utilizing 3D model is proven and can be used as an alternative way of working for development of piping work pack for offshore maintenance projects in lieu of conventional site survey.
Thesis (Degree of Master) - Universiti Teknologi Brunei
Includes bibliographical references from page 107-110
--Universiti Teknologi Brunei--Thesis--Final Year Report --Universiti Teknologi Brunei
Mechanical engineering --piping work pack
Dissertation, academic
Thesis writing
Dissertation Universiti Teknologi Brunei