Provide an overview of the procedures for abandoning onshore wells, backgrounds and technical requirements as a reference. Provide an overview of the utilization of reserved abandonment and site restoration funds to finance the abandonment of the wells. Plugging and abandoning the well is done when it has not more potential on productivity, has a well integrity problem, and is at risk of theft and the environment. Procedures undertaken to obtain approval for the closure of the well. The technical review of abandoning of the well refers to recognized national and international standards. Discuss some possible innovations to obtain more effective way in troubleshooting or to replace some procedures that are not possible to be followed. Reserved ASR funds disbursement procedures to pay for work. Challenges to speed up the process of disbursement of funds. Following standard procedures requires considerable attention and impacts on costs to be incurred. Disbursing ASR funds that have been reserved to pay for the work is not as easy as the established procedure. Several suggestions for improvements are made to speed work approval and disbursement of funds. Well abandonment procedures have been standardized, but submission procedures and ASR disbursement submissions are necessary for every operator to know. This paper provides an important guide for operators to submit P&A proposals and fund disbursements.

Conduct comparative evaluations of offshore wells abandonment projects on either platform or underwater, whether rig or rigless. Identify challenges and effectiveness in terms of operations and costs. Discuss the preparations to be made before the work and the procedures to be done. Based on data of the offshore wells abandonment which were conducted between 2014-2017 in Indonesian waters, classification was made on subsea and platform, then differentiated the water depth and the total well depth, and are grouped to its method with the rig or rigless. Then look at the problems in the well. Money spent is also a point of comparison for evaluation. Plugging procedures refer to national and international standards that are recognized. Evaluating the work schedule of each group were assessed. There is a very clear distinction between the well abandonment on subsea and those on the platform. Also there are some differences between the use of the rig with rigless. This study illustrates how much it will cost to cover the well and also recommends work in the form of a project campaign to achieve its effectiveness. Plugging and abandoning the wells are commonly done on wells that are no longer expected to be productive. This comparative evaluation helps to illustrate how effectively doing the well abandonment works in the form of a project campaign.