Geologi Minyak Bumi Cekungan Jawa Timur Utara

Summary

This video delves into the oil and gas exploration process in Indonesia, highlighting the role of earth scientists in discovering and optimizing reserves. It outlines the importance of fossil fuels in meeting the country’s energy needs and the complexities of extracting these resources from natural formations. Using the East Java basin as a case study, the script explains the petroleum system, including source rocks, migration, reservoirs, and traps. The video emphasizes the ongoing need for exploration, technological advancements, and geological expertise to secure future energy supplies in Indonesia and globally.

Takeaways

• 😀 Indonesia has over 100 million motorbikes and 16.5 million passenger cars on the streets, contributing to a significant demand for energy.
• 😀 In 2020, 50.5% of Indonesia's energy mix relied on fossil fuels like oil and natural gas, a figure expected to decrease to 43.5% by 2050.
• 😀 Despite the decrease in percentage, the total demand for fossil fuels will increase significantly, requiring three times the amount by 2050.
• 😀 The exploration of oil and gas reserves is crucial to meet Indonesia's energy needs, relying on optimizing proven oil and gas fields.
• 😀 Oil and gas are formed from organisms that lived millions of years ago, undergoing a natural process of preservation and transformation into kerogen.
• 😀 The Petroleum System includes key components such as source rock, reservoir rock, cap rock, migration paths, and traps that are necessary for oil and gas accumulation.
• 😀 The Petroleum System operates in both material and process forms, with processes like maturation, migration, and preservation leading to viable oil and gas fields.
• 😀 The Petroleum Play concept combines the elements and processes of the Petroleum System within a specific space and time framework to determine successful oil and gas exploration.
• 😀 In the East Java basin, oil and gas are produced from sedimentary rocks aged from the Eocene to Oligocene, with key formations like the Ngimbang, Servih, and Wonocolo formations.
• 😀 Structural traps, such as anticlinoria, and stratigraphic traps, such as carbonate rock formations, are common in the East Java basin and play a key role in oil and gas accumulation.
• 😀 Exploration in East Java basin's Rembang zone has proven successful, with oil fields discovered in regions like Ledok, Wonoc Solo, and Kawengan, and ongoing research aims to discover more reserves.

Q & A

What is the current number of motorbikes and passenger cars in Indonesia, as per the script?

As of 2018, Indonesia has at least 100.47 million motorbikes and 16.5 million passenger cars on the streets.

What percentage of Indonesia's energy mix in 2020 relied on fossil fuels?

In 2020, 50.5% of Indonesia's energy mix relied on fossil fuels, including oil and natural gas.

What is the projected increase in oil and gas demand in Indonesia by 2050?

By 2050, Indonesia will require around three times as much oil and gas as in 2020, amounting to approximately 441 million tons of oil equivalents.

What is the primary role of earth scientists in the oil and gas exploration process?

Earth scientists, including geologists and geophysicists, play a crucial role in exploring, discovering, and developing oil and gas fields by studying geological formations and identifying potential reserves.

What are the key elements of a petroleum system?

The key elements of a petroleum system include source rock, reservoir rock, cap rock, migration paths, and traps.

How are oil and natural gas formed according to the script?

Oil and natural gas are formed from the remains of ancient organisms, such as forams, algae, and large plants, which are buried, heated, and pressurized over millions of years, turning into kerogen and eventually oil or gas.

What is the petroleum play concept?

The petroleum play concept refers to the combination of petroleum system elements and processes within a time and space framework that allows for the accumulation of oil and gas.

What geological formations are prominent in the Rembang zone of the North East Java Basin?

In the Rembang zone of the North East Java Basin, key geological formations include thick marine sediment deposits, anticlinorium structures, and various oil and gas fields found in areas like Tuban, Cepu, and Madura Strait.

What is the source rock for oil and gas in the East Java Basin?

The source rock for oil and gas in the East Java Basin is primarily the Ngimbang formation, which is rich in organic material and serves as a significant source of hydrocarbons.

How do migration and traps function in the petroleum system?

Migration refers to the movement of oil and gas from the source rock to the reservoir, while traps are geological formations that allow the accumulation of these hydrocarbons, preventing them from migrating further.