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首页> 外文会议>Convention of the Gulf Coast Association of Geological Societies American Association of Petroleum Geologists Sectional Meeting >The Blasillo Field (Upper Miocene), Salina del Istmo Basin, Southeastern Mexico, Part 2:Sequence Stratigraphy and Reservoir Architecture
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The Blasillo Field (Upper Miocene), Salina del Istmo Basin, Southeastern Mexico, Part 2:Sequence Stratigraphy and Reservoir Architecture

机译：Blasillo Field（上部内肾上腺素），Salina del Istmo盆地，墨西哥东南部，第2部分：序列地层和水库建筑

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The Blasillo Field in the Salina del Istmo Basin is a mature field with good potential for in-fill drilling for secondary recovery. The field dips south on the flank of a shallow allochthonous salt feature. Reservoirs are upper Miocene channel-fill turbidites that were deposited in upper bathyal water depths. Seismic and wireline log trends indicate sediment transport was from the south to southwest to the north and northeast The reservoir interval in the field is divided into fourteen sequences, each separated by regionally continuous shales. Reservoir sands were primarily deposited in channelfill setting based on the five distinct spontaneous potential log lithofacies (blocky, fining upward, coarsening upward, serrated, and shale). The first four lithofacies correspond to the different positions of the channel-fill, and the latter corresponds to muddominated levee sediments. The reservoir sands were deposited in single to multistory channel-fill complexes. One of the key results of this study is the recognition of the changes in the channelfill architecture of the reservoir intervals, both laterally within sequences and between sequences. These changes represent the changing conditions of deposition of the channel-fill sediments through time. Additionally, there are distinct changes in lithofacies, thickness, and net-to-gross ratio between sequences 1 to 9 and sequences 10 to 14. Understanding the distribution of the channel-fill architecture is critical to developing the best spacing for well placement in a development planning.
机译：Saline Del Istmo盆地的Blasillo领域是一个成熟的领域，具有良好的填充钻井潜力，用于二次恢复。该场沿着浅浅盐特征的侧翼垂下来。储层是上部内部通道 - 填充浊度，沉积在上囊水深。地震和有线日志趋势表示沉积物运输从南北到西南到北部，东北地区的储层间隔被分成十四序列，每个都是由区域连续的索拉斯分离。基于五个不同的自发性潜在的日志岩散（块状，向上，腐烂，锯齿，锯齿，锯齿，锯齿和页岩），储层砂主要沉积在ChannelFill设置中。前四个锂离样对应于通道填充的不同位置，后者对应于泥浆堤沉积物。将储层砂沉积在单一到多层频道填充复合物中。本研究的关键结果之一是识别储层间隔的通道架构的变化，横向序列在序列内和序列之间。这些变化代表了通过时间沉积通道填充沉积物的变化条件。另外，序列1至9之间的锂外缩放，厚度和净血管比和序列10至14之间存在明显的变化。了解渠道填充架构的分布对于开发最佳间距的良好展示发展规划。

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