DECISION ANALYSIS TO DECIDE BEST ALTERNATIVE TO DEVELOP A NEW DISCOVERED “R FIELD”

• Main Author: Wirawan Sarwono, Ardhito
• Format: Theses
• Language: Indonesia
• Subjects: Manajemen umum
• Online Access: https://digilib.itb.ac.id/gdl/view/65618
• Institution: Institut Teknologi Bandung

In Indonesia, oil, gas, and coal has the biggest shares as the main source of energy. Oil and gas upstream industry has the biggest responsibility to supply the sources by producing oil and gas. Pertamina, as the biggest energy company in the country has several upstream subsidiaries including Pertamina EP is the company that responsible to supply the source. Zone 7 as part of Pertamina EP has a problem shortage of gas supply for buyers in the area. In the other hand, exploration activities in R field was successfully discover the proven potential gas layers and one potential oil layer. This discovery was expected to fulfill the energy demand in the area. But, from the discovery in 2019 until now (2022) there is no development activity in R field. Hence, the undeveloped potential in R field become an issue. The objective of this writings are to determine the root cause of the undeveloped potential issue in R field, and generate a decision analysis to decide the best alternative to be implemented in R field. Several method will be used to determine the root cause, generate alternatives, and define the solution. This research followed six step problem solving. The methodology began with the SWOT Analysis to define the business situational analysis and Kepner-Tregoe Method to determine the root cause of the problem. Then continued with Value Focused Thinking method to determine the desired goals. Brainstorming sessions to provide the alternatives also conducted. Those alternatives then validated using reservoir dynamic simulation model and forecasted. SMART Method and economical parameter comparison using PSC Model will be perform to select the best solution. From brainstorming, there are 9 alternatives were generated which filtered by SMART method into 4 best alternatives. 1 do nothing scenario, 2 oil layer development scenario, and 1 gas development scenario. From profitability parameter calculations using PSC model only 1 scenario that defined as profitable scenario: develop oil layer using the existing well only, without additional drilling well. Thus, this scenario will be the final recommendation to be implemented in R field. Instead of developing the gas layer in the stated gas discovered new field, the oil layer will give better profitability and feasible to be implemented. This conclusion is a product of a comprehensive approach from subsurface consideration to surface facility study and economical consideration (profitability) which should be the conducted earlier in the end of exploration phase. R field which stated as gas discovered field has the better profit for the company with oil development layer.