Anurogo, WenangReza Afnani, Ahmad2025-01-032024-07-01APA2623-1182http://103.209.1.147:4000/handle/PL029/2976Based on the results of the research conducted, conclusions can be drawn. that straightness measurements on Jacket Leg pipes in the SHELL CRUX project using a total station can increase accuracy and reduce errors caused by human factors such as reading angles, distances, and others in the fabrication. The Jacket Leg Pipe measurement results will provide a more detailed understanding of the structure, allowing further evaluation of the strength, stability and ability of the floor structure to support the offshore platform Module and other loads. These results can also be used in the design, planning and maintenance of Jacket Leg Pipe Structures to ensure safety and optimal performance. If the measurement of the straightness of the Jacket Leg Pipe shows appropriate results and is within the expected tolerance, it can be concluded that the engineering and construction process of the Jacket Leg Structure for the offshore platform module is going well and the pipes are constructed correctly.An offshore platform (Offshore Platform or Offshore Rig) is a building structure with drilling equipment that is built offshore to support the exploration or exploitation process of mining materials and natural minerals. The main function of an offshore platform (Offshore Platform or Offshore Rig) is for oil and gas exploration and production. The most commonly used offshore platform is the jacket type offshore platform. The structure of this type of platform consists of a jacket, deck and piles. The deck functions as a place to carry out all activities. The jacket functions as a channel for lateral loads on the pile and is designed to act as a casing when the pile is being driven. The pile functions as a load distributor to the seabed. In the process of making Jacket leg offshore platform modules, it is important to implement an appropriate control system, but usually if a size/dimensional error occurs it will not be detected until the assembly stage begins. This will be detrimental to oil and gas construction companies both in terms of time, energy and operational costs. Implementation of a control system with a total station and processing with Bestfit software will provide a decision support system to overcome these dimensional problems. Processing measurement data with Bestfit can provide complete and accurate information regarding the dimensions of the offshore platform. This is widely used to continuously monitor the results of the manufacturing process, repairs and installation. Keywords: Offshore PlatformenArticleNIM3322101052NIDN0030048902KODEPRODI29301#TEKNOLOGI GEOMATIKA