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首页> 外文学位 >Structural, stratigraphic, and petrophysical controls on natural gas production from the Travis Peak and Pettet formations, Lower Cretaceous, in the Overton Field, Smith County and Cherokee County, East Texas.
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Structural, stratigraphic, and petrophysical controls on natural gas production from the Travis Peak and Pettet formations, Lower Cretaceous, in the Overton Field, Smith County and Cherokee County, East Texas.

机译：在得克萨斯州东史密斯县史密斯县和切罗基县下白垩纪下白垩统特拉维斯峰和佩特特地层生产天然气的结构，地层和岩石物理控制。

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摘要

The Travis Peak and Pettet Formations are two major hydrocarbon producing trends of Lower Cretaceous time in the East Texas Basin. A field study was conducted in Overton Field of Smith and Cherokee counties, east Texas to determine the structural, stratigraphic, and petrophysical characteristics of the Travis Peak and Pettet Formations. Wireline well log correlation and petrophysical analyses were used to determine petrophysical characteristics that included: shale volume, effective porosity, and water saturation. Subsurface isopach maps were constructed to determine the depositional environment and the areas of potential hydrocarbon production. Two depositional environments were proposed for the Travis Peak Formation. The upper Travis Peak depositional environment is interpreted as a tidal flat setting where tides rework the clastic sediments. The deposits are dominated by clean sandstones separated by siltstones representing spring and neap tide bundles. The lower Travis Peak depositional environment is interpreted as a tide-dominated estuary where clastic sediments were trapped and reworked. The deposits are dominated by clean sandstone separated by thin siltstone deposits representing 4 th and 5th order transgressions. The Pettet Formation depositional environment is interpreted as a shallow marine oolite shoal setting. The deposits represent subtidal carbonate lithofacies cycles recording 4 th order transgressive cycles. The study of the structural, stratigraphic and petrophysical characteristics were used to construct reservoir maps of the Travis Peak and Pettet Formations to show the formations potential for production of hydrocarbons. Potential for production exists in both the Travis Peak and Pettet Formations within Overton Field.
机译：特拉维斯峰和佩特特地层是东德克萨斯州盆地下白垩统的两个主要生烃趋势。在得克萨斯州东部的史密斯和切诺基郡的Overton田野进行了野外研究，以确定特拉维斯峰和佩特特地层的结构，地层和岩石物理特征。有线测井相关性和岩石物理分析用于确定岩石物理特征，包括：页岩体积，有效孔隙度和含水饱和度。构造了地下等渗线图，以确定沉积环境和潜在的碳氢化合物生产区域。提出了特拉维斯峰形成的两种沉积环境。特拉维斯峰的上部沉积环境被解释为潮汐平面，潮汐对碎屑沉积物进行了返工。沉积物以干净的砂岩为主，由代表春季和新生潮汐束的粉砂岩隔开。特拉维斯峰下部的沉积环境被解释为潮汐占主导的河口，碎屑沉积物被捕集并重新处理。沉积物以干净的砂岩为主，由稀薄的粉砂岩沉积物隔开，代表了第四和第五级海侵。佩特特地层的沉积环境被解释为浅海橄榄石浅滩环境。沉积物代表潮下碳酸盐岩岩相循环，记录了四阶海侵循环。通过对结构，地层和岩石物理特征的研究，构造了特拉维斯峰和佩特特地层的储层图，以显示该地层具有生产碳氢化合物的潜力。欧弗顿油田内的特拉维斯峰和佩特特地层均具有生产潜力。

著录项

  • 作者

    Gross, Eric D.;

  • 作者单位

    University of Arkansas.;

  • 授予单位 University of Arkansas.;
  • 学科 Geology.
  • 学位 M.S.
  • 年度 2007
  • 页码 68 p.
  • 总页数 68
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 地质学;
  • 关键词

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