The West Seno Oil Field

Picture2

 

Discovered by Unocal in 1998, the West Seno field, lying in water depths of about 3200 feet, is the first deepwater oil field in Indonesia.

Located in the Strait of Makassar, the West Seno field is about 50 km away from the giant Attaka field and 60 km from the Santan terminal in East Kalimantan.

The oil and gas are produced through two tension leg platforms which are also the first of its kind in Indonesia.

The two platforms are TLP A and TLP B which can accommodate 28 wells and 24 wells respectively.

Oil production began in 2003. The fluids from the subsea wells are initially separated into oil and gas on the FPU (Floating Production Unit).

The separated oil and gas are then transmitted via two 12-inch diameter and 60 km long pipelines to the onshore facilities at Santan for final handling and storage.

One of the oil production challenges of West Seno is handling the difficult-to-break emulsions. The emulsions are hard to break due to the presence of certain chemicals in the fluid, the decreasing fluid temperature as it rises to the surface, and the movement of the floating platform.

The development of the West Seno field was made possible by having a favorable PSC profit splits of 35 percent instead of the regular 15 percent for shelf developments.

The field is currently operated by Chevron.

History of the Giant Attaka Oilfield

Pres. Soeharto di Santan

Fifty years ago, Union Oil of California (UNOCAL) along with its partner, INPEX, discovered the giant offshore oil field Attaka in East Kalimantan.

General Soeharto, the president of Indonesia at that time, then inaugurated the Attaka field and the Santan terminal on 22 January 1973.

In the early days of Attaka and the Santan terminal, there were many workers from the US and UK. Over time, they were gradually replaced by Indonesian workers.

Unocal operated the oil field for 25 years from its East Kalimantan headquarters located in Balikpapan. The Attaka field was subsequently acquired and operated by Chevron, and then by Pertamina Hulu Kalimantan Timur beginning on 25 October 2018.

At 50 years old, the field is still producing today.

Thousands of oil people – expatriates from many nations and Indonesians from every region – have visited and worked in the offshore facilities and the onshore Santan terminal including me.

I worked in the Attaka field as “Production Foreman” in 1980. I hope you like this snippet of the history of Attaka and the Santan terminal.

If you like to read more about the Attaka field here is The Ten Interesting Facts About Attaka.

.

Performance of Oil Industry of Indonesia in 2019

IMG_4902
Power Plant at North Jakarta, Indonesia

 

Oil companies in Indonesia and SKK Migas were buzzing with activities and excitement in 2019.

Exploration and Production Results

First, here are the combined performance results of the exploration and production activities of all the oil and gas production sharing contractors in Indonesia operating under the supervision of SKK Migas in 2019:

  • Total number of active work areas: 201
  • Average daily crude oil production: 746,000 BOPD
  • Average daily gas production: 5934 MMSCFD
  • Combined total daily oil and gas production: 1,806,000 BOEPD
  • The total value of the investment: 11.49 Billion USD
  • Number of development wells completed: 322
  • Number of exploration wells drilled: 36
  • The volume of oil and gas in place discovered: 113 BBOE  
  • 2-D seismic surveys completed: 12169 KM
  • 3-D seismic survey completed: 6837 KM2

On the oil and gas discovery front, it is nice to note that REPSOL and partners PETRONAS and MOECO discovered a giant gas field in February 2019 in the Sakakemang block in South Sumatera. With 2 trillion cubic feet of recoverable gas reserves, it is one of the largest gas discoveries in the world in 2019 and also the most significant gas discovery in Indonesia in the last 18 years.

On new field development, Inpex Indonesia and SKK Migas made significant progress in developing the huge Abadi gas field and constructing the LNG plant. It was decided the LNG plant will be built in the Yamdena Island in the Maluku province of Indonesia.

The 15 Largest Oil Producers in Indonesia

Here are the 15 largest oil producers operating under the production sharing system in Indonesia in 2019:

  • ExxonMobil Cepu
  • Chevron Indonesia
  • Pertamina EP
  • Pertamina Hulu Mahakam
  • Pertamina Hulu Energi Offshore North West Java (PHE ONWJ)
  • Pertamina Hulu Energi Offshore South East Sumatera (PHE OSES)
  • PetroChina International Jabung
  • Medco E&P Natuna
  • Petronas Carigali Ketapang
  • Pertamina Hulu Kalimantan Timur
  • BOB Bumi Siak Pusako Pertamina Hulu
  • Pertamina Hulu Sanga Sanga
  • Medco E&P Rimau
  • JOB Pertamina Medco Tomori Sulawesi
  • ConocoPhillips Grissik

The 15 largest natural gas producers in 2019

Here are the 15 largest gas producers in Indonesia in 2019:

  • BP Berau
  • ConocoPhillips Grissik
  • Pertamina EP
  • Pertamina Hulu Mahakam
  • ENI Muara Bakau
  • JOB Pertamina Medco Tomori Sulawesi
  • Premier Oil Indonesia
  • PetroChina International Jabung
  • Medco EP Natuna
  • Kangean Energy Indonesia
  • PHE West Madura Offshore
  • Pertamina Hulu Energi Jambi Merang
  • Husky-CNOOC Madura
  • Mubadala Petroleum Indonesia
  • PHE Offshore North West Java

 

The SKK Migas

The SKK Migas of Indonesia has also been very proactive in its roles as the supervisor of the production sharing contractors to facilitate their exploration and production activities.

With the vision to increase the oil production in Indonesia to one million barrels per day by 2030, SKK Migas instituted the Integrated Operation Center (IOC) and the One Door Service Policy (ODSP) in 2019.

The Integrated Operation Center (IOC)

 SKK Migas launched the Integrated Operation Center (IOC) in 2019. With the IOC, SKK Migas now has online and realtime access to information and data related to the exploration, drilling and production activities of the production sharing contractors in all work areas.

The  IOC allows SKK Migas to monitor the daily field activities of all operators, understand the field situations and make prompt recommendations.

The objectives of SKK Migas in establishing the OIC are to keep the oil and gas operations go smoothly and achieve the production targets.

Currently here is the information that is being monitored by the Integrated Operation Center:

  • Oil and gas production (Production Dashboard)
  • Oil and gas lifting (Oil and Gas Lifting Dashboard)
  • Stock Management (Stock Management Dashboard)
  • Plant Operation (Plant Information Management System – PIMS)
  • Facility Maintenance
  • Project Progress
  • Vessel tracking (Vessel Tracking Information System – VTIS)
  • Real-Time Drilling Operation
  • Emergency responses (Emergency Response Center – ERC)

The One Door Service Policy (ODSP)

SKK Migas also introduced One Door Service Policy (ODSP) in 2019. Through ODSP, the applications of all the permits related to exploration, drilling, field development, and production can be processed in one place.

SKK Migas will work with and support all the production sharing contractors in preparing the required documents and submitting the applications to obtain the various permits they need.

This is a very significant service because of the various types of permits that oil operators must apply. With this one-door policy, SKK Migas is hopeful that the various permits can be obtained promptly, and the oil and gas exploration and production targets can be achieved.

The One Door Service Policy consists of four work-groups that will help the production sharing contractors deal with the following type of permits:

  • Permits related to land acquisition and use 
  • Permits related to the environment, safety and security
  • Permits related to the use of resources and infrastructure
  • Permits related to the use of materials and human resources from outside Indonesia.

Several exploration and production targets were exceeded in 2019 and SKK Migas is hopeful the new 2020 targets can be achieved also by the end of the year.

This article is adapted from the information posted by SKK Migas.