EFFECTIVE AND EFFICIENT CGS STRATEGY TO MITIGATE NDC UNPLANNED TOTAL SHUTDOWN: A CASE IN PT. CAPITAL PETROLEUM INDONESIA
Nowadays, the Duri POD (Plant Operations Duri) operates four Central Gathering Station (CGS) which receive produced fluids from producer wells, post workover wells, and new drilled well. Every CGS treats and distributes the soft water, good oil to customers, and sends the excess treated water, wa...
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| Format: | Theses |
| Language: | Indonesia |
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| Online Access: | https://digilib.itb.ac.id/gdl/view/54710 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Nowadays, the Duri POD (Plant Operations Duri) operates four Central Gathering Station
(CGS) which receive produced fluids from producer wells, post workover wells, and new
drilled well. Every CGS treats and distributes the soft water, good oil to customers, and
sends the excess treated water, wastewater, waste gas, and oil viscous fluid to each disposal
facilities. All of products mostly transferred through each piping network which has
limitation in pressure, flow, and even the quality.
NDC Power Plant consists of three units Heat Recovery Steam Generator (HRSG) which
Efficient process to simultaneously produce electricity and steam. NDC consumes soft
water that send from CGS and converted to steam, so that if there is a failure in all NDC
units, the resulting excess water will be very large and need quick and proper handling to
prevent environmental pollution and minimizing production loss. 2 (two) historical cases
were happened in the period of year 2017 and 2019 related to NDC unplanned total
shutdown that caused abnormal condition at CGS Duri and necessitated to shut in producer
wells with production loss value reach out USD 1 MM.
Ishikawa Diagrams or Fishbone Diagrams of Cause-and-Effect Analysis can be used to
evaluate the root cause of a business problem. The Value-Focused Thinking (VFT)
methodology will be used to generate various options and parameters. The best option for
mitigating excess water at CGS during the unplanned total shutdown of the NDC will be
determined using available alternatives.
Turning the steam generator back on, Continuous Buffer and Instantaneous Buffer Use,
and Partial Shut-in Producers are the three options proposed to alleviate the excess water
issue. The best option for mitigating excess water is to use a steam generator to manage
excess water and sustain the steam goal. This option is suitable for a short-term solution
and is very successful.
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