Subvolcanic hydrocarbon prospectivity of Java

Awang_subvolcanic java

Numerous oil and gas seeps occur on Java Island concealing prospective basin sediments. However, most of this island is covered by volcanic products of Paleogene to Recent times. The volcaniclastic sediments buried the source rocks, burying the source rocks to depths of oil and gas windows. Oil and gas seeps in volcanic areas of Java show the presence of active petroleum systems underneath the volcanic cover. This indicates hydrocarbon prospectivity on Java Island (subvolcanic play) that is so far unexplored. Volcaniclastic covers are notorious for causing poor seismic data quality, making subsurface imaging difficult. This will challenge the methods and techniques of seismic and nonseismic data acquisition and processing. Once these challenges are resolved, the subvolcanic play of Java may be revealed.

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Tectonics, Stratigraphy and Geochemistry of the Makassar Straits: Recent Updates from Exploring Offshore West Sulawesi, Opportunities and Risks

Satyana_2012_ipa_156

This is a review paper on the tectonics, stratigraphy  and geochemistry of West Sulawesi Offshore, Indonesia. This paper is presented at the 36th IPA meeting. The increase of exploration activity in West Sulawesi Offshore has enhanced our understanding but, it cannot instantly build a thorough knowledge of the petroleum geology of the area. There have been surprising results, both positive and negative, that were unexpected when compared with the prognoses for the wells drilled recently. It therefore appears that assessing the risk of both plays and prospects in this area is still difficult.

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Welcome to our blog

Bumi_ino

Hi all! Welcome to our blog, Tektonesiana.

The name of Tektonesiana is derived from the word tectonics and Indonesia. Tektonesiana represents our ‘passion’ on tectonics of Indonesia.

We, Indonesian geologists who share the same interest, use this blog to post articles that represent our works. These articles have been presented in scientific meetings. Some of them also have been published in journals. We have many questions about tectonics of Indonesia, and we want to share them with you. Enjoy our blog!

View our list of publications

Exploration Challenges and Opportunities in Deep Water Makassar Strait Basins, Indonesia : Review of Carbonate Play Based on Sequence Stratigraphy and Seismic Characterization

Armandita_makassar_seg2011

This work that has been presented SEG Annual Meeting, September 18 – 23, 2011 , San Antonio, Texas overviews the petroleum system model in deepwater Makassar Strait basins. Unsuccessful of six expensive exploration wells in this area is a bit much influence to the activities of exploration in the South Makassar Basin. The authors explained exploration opportunities and challenges in an effort to discover hydrocarbons in the deep water Makassar Strait Basins.

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Structural Reactivation and its Implication on Exploration Play: Case Study of JS-1 Ridge

Maulin_2012
This work has been presented at INDONESIAN PETROLEUM ASSOCIATION, Thirty-Sixth Annual Convention & Exhibition, May 2012. The authors of this article explained paleotectonic evaluation of the WMO area, and suggests another potential play other than Kujung Formation. Seismic interpretation with some attributes and also ant-track method are applied to strengthen the exploration concept. Another play that is quite interesting should be added to exploration in this area. Syn-rift play can be found in the western and eastern flank of JS-1 with Ngimbang Formation as the objective, whilst the post Kujung play can be emphasized on the flower structure pattern as an indication of wrench faulting. This wrench fault is responsible for tearing apart the Rancak and O.K. Formations during intra Miocene.

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