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厄瓜多尔奥连特盆地下Napo组页岩气资源潜力评价 被引量:2

Potential Assessment on Shale Gas in Lower Napo Formation of Oriente Basin,Ecuador
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摘要 针对厄瓜多尔富油贫气的现状,评价其主要含油气盆地——奥连特盆地页岩气勘探潜力。给出了页岩气储层标准,通过对奥连特盆地岩性、地球化学指标、深度、分布稳定性及资料完善程度诸方面综合分析,优选出下Napo组页岩作为具有页岩气勘探潜力的地层。并研究其成藏条件,利用不同区块38口井测井解释成果,获得页岩厚度分布及变化趋势,通过29条地震测线解释成果,研究了下Napo组页岩在盆地内的变化趋势,综合前人研究成果及地球化学指标,预测了盆地下Napo组页岩气勘探有利区。结果表明,盆地的东部地区(12区块、67区块、18区块、31区块及63区块)和西北地区(11区块、18区块)对页岩气勘探开发相对有利,其次是西部地区(29区块、20区块、22区块、28区块、70区块),研究成果为厄瓜多尔奥连特盆地页岩气勘探指明了方向。 For more petroleum and less gas in Ecuador, we assessed the shale gas exploration potential of its main oil and gas bearing basin, Oriente Basin. We gave the shale gas reservoir criteria, and analyzed lithology, geochemical factors, depth, distribution stability, and data perfection, and chose the shale in lower Napo Formation in the Basin as promising. We probed into its reservoir forming conditions, used the logging interpretation results of 38 wells in different blocks and obtained shale thickness distribution and variation trend. Through the interpretation results of 29 seismic lines, we studied the variation of the shale in lower Napo Formation in the Basin, and utilized previous research results and geochemical fac- tors to predict the favorable areas for shale gas exploration in lower Napo Formation. Results showed that the eastern areas (Block 12, Block 67, Block 18, Block 31 and Block 63) and the northwestern area (Block 11 and Block 18) were more favorable for shale gas exploration and development, followed by the western area (Block 29, Block 20, Block 22, Block 28 and Block 70) . The results showed the way for shale gas exploration in Oriente Basin.
作者 张洪
出处 《非常规油气》 2015年第6期1-8,共8页 Unconventional Oil & Gas
关键词 厄瓜多尔 奥连特盆地 页岩气 勘探开发有利区 Ecuador Oriente Basin shale gas favorable exploration and development area
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参考文献16

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