Abstract
After 15 years of exploration in the LTAF Formation at JB Block, undiscovered structural traps decrease both in size and in quantity. The stratigraphic trap has the highest potential to play more important role in the future. Guided by seismic sedimentology, seismic attributes, strata slicing, RGB frequency division, and combination technology, coupled with core, logging, and seismic data interpretation, have been integrated to investigate the seismic geomorphology, which will facilitate the discovery of stratigraphic exploration targets. The results show that the base-level rise half-cycle in the LTAF Formation consists of alluvial fan, braided river, and littoral to deep lacustrine sediments. The development of alluvial fan is mainly controlled by paleo-geomorphology, which is distributed around the paleo-highs with limited extension. Fluvial, littoral to deep lacustrine facies are developed in base-level fall half-cycle of the LTAF Formation. Fluvial facies mainly occur at the paleo-structural high and the southeast of the region of the study area. The sedimentary evolution history of this area is quite complex. The alluvial fan and braided river are largely developed at the early stage of rise half-cycle. However, alluvial fan and braided river facies are dwindled at the late stage and replaced by littoral-deep lacustrine facies. The littoral-deep lacustrine facies are well developed at the early stage of fall half-cycle, while the fluvial facies is well developed at the late stage.
Copyright 2018, Shaanxi Petroleum Society.
This paper was prepared for presentation at the 2018 International Field Exploration and Development Conference in Xi’an, China, September 18–20, 2018.
This paper was selected for presentation by the IFEDC Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper, as presented, have not been reviewed by the IFEDC Committee and are subject to correction by the author(s). The material does not necessarily reflect any position of the IFEDC Committee, its members. Papers presented at the Conference are subject to publication review by Professional Committee of Petroleum Engineering of Shaanxi Petroleum Society. Electronic reproduction, distribution, or storage of any part of this paper for commercial purposes without the written consent of Shaanxi Petroleum Society are prohibited. Permission to reproduce in print is restricted to an abstract of not more than 300 words; illustrations may not be copied. The abstract must contain conspicuous acknowledgment of IFEDC. Contact email: paper@ifedc.org.
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Acknowledgements
This work was supported by the National Science and Technology Major Project (Grant No. 2016ZX05029005). We are grateful to the authors for their research findings cited in the paper. We also thank the anonymous reviewers and the editors for their constructive comments and suggestions, which improved the manuscript.
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Zhu, H., Hong, G., Ma, Y., Hu, G., Bai, Z. (2020). Seismic Geomorphology of the LTAF Formation in JB Block, South Sumatra Basin. In: Lin, J. (eds) Proceedings of the International Field Exploration and Development Conference 2018. IFEDC 2018. Springer Series in Geomechanics and Geoengineering. Springer, Singapore. https://doi.org/10.1007/978-981-13-7127-1_101
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