Journal of Jilin University(Earth Science Edition) ›› 2016, Vol. 46 ›› Issue (6): 1884-1894.doi: 10.13278/j.cnki.jjuese.201606307

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Assessment and Optimistic of Cluster Platform for Foreland Basin Slop Belt Exploration: Taking the TW Block in Oriente Basin, Ecuador as an Example

Ma Zhongzhen, Xie Yinfu, Zhang Zhiwei, Zhou Yubing, Yang Xiaofa, Wang Dandan   

  1. PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China
  • Received:2016-03-24 Online:2016-11-26 Published:2016-11-26
  • Supported by:
    Supported by National Science and Technology Major Project (2016ZX05029005), Major Science and Technology Projects of PetroChina Co. Ltd. (2013E-0501), and Major Science and Technology Projects of China Petroleum Group Corporation (2016D-4301)

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Abstract: Due to small trap size and big exploration investment on tropical rain forest, platform and trap optimization in slop belt of South America foreland basin has become a big problem that should be faced by geologist. Taking the TW block in Oriente basin, Ecuador as an example, the paper introduced cluster platform economic assessment after trap geological risk analysis, and realized cluster optimization. The evaluation process is as follows. 1) Trap geological risk analysis and resource assessment (traditional six factors assessment). 2) Platform economic assessment:design N platforms (different traps in different platforms), do economic assessment of each trap within the same platform, including investment (e.g. well drilling, platform construction, road and pipeline construction, perforation, surface recovery etc.) and income, and get rid of the trap with profit smaller than 0, and re-evaluate each trap till all the traps' profits are larger than 0. 3) Platform and trap optimization:optimize platform according to total profit of all the traps, then sequence the trap by profit controlled by the optimized platform. 4) New round platform and trap optimization:get rid of the optimized traps and go to step 2) and 3) till all the platform with profit larger than 0 has been selected. The new method has been used in platform and trap optimization in TW block which shows good result in practice.

Key words: foreland basin, slope, trap evaluation, cluster platform, economic assessment, evaluation method

CLC Number: 

  • TE122.1
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