Central Luconia Province

Abstract Southeast Asia is one of the leading regions globally in terms of planned gas developments in the next decade. We estimate sour gas contamination in Southeast Asian gas discoveries is one of the major challenges delaying over 10 billion barrels of oil equivalent gas resources from coming online. These developments are planned in Malaysia, Indonesia, and Vietnam, requiring around $20 billion of investments, and could potentially make a significant contribution to regional production post-2030. But the fields contain high levels of sour gas, which makes development challenging and costly. Sour gas refers to natural gas that contains significant amounts of acidic gases such as hydrogen sulfide and carbon dioxide (CO2). Some industry majors are moving forward with exploration and development - albeit at a slow pace. Off Malaysia, work on Petronas’ Kasawari, Shell's Rosmari-Marjoram and PTTEP's Lang Lebah fields have been lined up, while Indonesia has witnessed similar slow progress on similar projects operated by IOCs and the government is also hoping the potential of its Natuna D-Alpha field will attract investors. However, as domestic gas demand in the countries increases and output drops, efforts must be made to overcome the complex geology and associated challenges. In fact, globally SE Asia & NW Australia are one of the largest regions with concentrations of sour gas. The paper intends to highlight Southeast Asia's role in planned gas developments globally and the significance of these developments in regional production. We deep dive into the planned developments risked by the sour gas contamination which makes up over 40% of the gas resources planned for development in Southeast Asia by 2030.

OnePetro

doi: 10.4043/31335-MS

OTC

OTC-31335-MS

Offshore Technology Conference Asia

Country:

Asia > Indonesia > Natuna Sea (0.34)
Asia > Malaysia > Sarawak > South China Sea > Central Luconia Province (0.25)

Industry: Energy > Oil & Gas > Upstream (1.00)

Oilfield Places:

Asia > Vietnam > Song Hong Basin (0.99)
Asia > Malaysia > Sarawak > South China Sea > Sarawak Basin > Golok Field (0.99)
Asia > Indonesia > Riau Islands > Natuna Sea > East Natuna Basin > East Natuna Block > East Natuna Field (0.99)
(4 more...)

SPE Disciplines:

Production and Well Operations > Production Chemistry, Metallurgy and Biology > Corrosion inhibition and management (including H2S and CO2) (1.00)
Health, Safety, Environment & Sustainability > Health > Noise, chemicals, and other workplace hazards (1.00)

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Encapsulating Complex Carbonate Facie Heterogeneity into Static Reservoir Model through Seismic-Based Characterization, Lang-Lebah Field, Central Luconia, Offshore Sarawak

OnePetroMarch, 2022

Abstract Capturing the reservoir heterogeneity is crucial for optimizing field development. Lang-Lebah field is a Miocene carbonate platform with approximately 5 sq.km. in size and over 1 km in height with a high degree of heterogeneity in both vertical and horizontal directions. In this study, we conducted a seismic-based characterization to capture reservoir heterogeneity and then ran sequential gaussian simulation with a data from wells to build a static model for field development purpose. The method mainly comprises of four steps. The first step is to establish a relationship between reservoir properties (such as facie and porosity) to elastic properties (such as P- and S-wave impedances) to build conditional probability. The second step is running pre-stack inversion to derive P- and S-wave impedances as inputs for the third step. The posterior probability of each facie is determined through Bayesian classification using inverted impedances and the derived conditional probability as inputs. The last step is employing sequential gaussian simulation to build a static model using derived posterior probability of each facie and porosity cube. The static model encapsulates heterogeneity in terms of carbonate facie and reservoir properties. The observed heterogeneity is highly consistent with the understanding of geological model of this carbonate platform. The result shows lateral heterogeneity in each zone of high energy facies (such as reef margin) at the windward flank of the platform and low energy facies (such as lake) at platform interior. Thus, this result was elaborated for geological concept beyond the using well data alone. The result also shows a vertical succession from different carbonate reservoir deposit regarding to accommodation as carbonate build-out to a typical carbonate platform build-up continue to carbonate build-in. In addition, flooding event or surfaces, which is part of reservoir barrier, was also identified and included in this static model. The details of this successful novel study lay a fundamental work process for battling the challenge of gigantic carbonate characterization for field development. Because of this sophisticated model, we can properly plan the sequence of production and producing well targeting based on the derived reservoir heterogeneity resulting in enabling several Tscf of reserves and minimizing development costs.

OnePetro

doi: 10.4043/31517-MS

OTC

OTC-31517-MS

Offshore Technology Conference Asia

Country: Asia > Malaysia > Sarawak > South China Sea > Central Luconia Province (0.61)

Genre: Research Report > New Finding (0.54)

Geophysics:

Geophysics > Seismic Surveying > Seismic Modeling > Velocity Modeling > Seismic Inversion (0.50)
Geophysics > Seismic Surveying > Seismic Processing (0.48)

Industry: Energy > Oil & Gas > Upstream (1.00)

Oilfield Places: Asia > Malaysia > Sarawak > South China Sea > Central Luconia Province > Sarawak Basin > Block SK410B > Lang Lebah Field (0.99)

SPE Disciplines:

Reservoir Description and Dynamics > Reservoir Simulation > Construction of static models (1.00)
Reservoir Description and Dynamics > Reservoir Characterization > Seismic processing and interpretation (1.00)
Reservoir Description and Dynamics > Formation Evaluation & Management (1.00)
Reservoir Description and Dynamics > Fluid Characterization > Fluid modeling, equations of state (1.00)

Technology: Information Technology > Artificial Intelligence (1.00)

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McDermott Completes Pan-Malaysia Transportation and Installation Projects

Journal of Petroleum TechnologyDecember, 2020

McDermott International completed its Pan-Malaysia transportation and installation projects for Sarawak Shell Berhad and SapuraOMV, located offshore Miri, Sarawak. Awarded in November 2018, the contract included the transport and installation of jackets, topsides, and pipelines for the Gorek, Larak, and Bakong gas fields. McDermott's vessel, the Derrick Barge 30, was used to install the structures and pipelines, including the longest corrosion resistant alloy pipeline in Malaysia. The company also fabricated risers and spools in its fabrication facility in Batam, Indonesia. SapuraOMV and its partners, PETRONAS Carigali Sdn Bhd, and Sarawak Shell Berhad signed a full-term upstream gas sales agreement with PETRONAS in September 2019 for the Gorek, Larak, and Bakong fields under the first development phase of the SK408 gas fields production-sharing contract.

Journal of Petroleum Technology