We get some insight into the new construction and maintenance operations so called keyhole technology which minimizes labour and restoration costs compared with conventional practices. Because the concept is relatively new to the public utility sector, there is a lack of equipment/tools available that could perform the required services. The finite element analyses using commercial package ABAQUS will be employed to obtain the force needed to close the pipe. As a final example we will show the topology optimization of squeeze–off tool as the act of an iterative process.