• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>SPE annual technical conference and exhibition >The New Small-Drillhole Minipermeameter Probe for In-Situ Permeability Measurement
【24h】

The New Small-Drillhole Minipermeameter Probe for In-Situ Permeability Measurement

机译：新型小钻孔微型渗透仪探头，用于原位渗透率测量

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Laboratory measurement of permeability using a Hassler cellis the industry standard; however, consistently removing undisturbedrock samples from friable outcrops is difficult. Althoughconventional surface-sealing minipermeameters havebeen developed as an alternative for permeability measurement,these devices suffer from difficulties in maintainingoptimal forces on the tip-seal when dealing with outcrop irregularitiesin the field; outcrop weathering is also problematic.Because a reliable field method is needed for outcropstudies, this paper presents an innovative technique for measuringpermeability in situ. The design of a new small-drillholeminipermeameter probe is discussed, as well as the accompanyinganalytical technique and the size and shape of the instrument’saveraging volume. Small diameter holes [i.e., 1.8cm (0.7 in)] are drilled into an outcrop with a masonry drill,followed by drillhole vacuuming, probe insertion, seal expansion,gas injection, and calculation of the intrinsic permeabilitythrough measurement of the injection pressure, gas flowrate, and knowledge of the system geometry. Advantages ofthis approach are the elimination of questionable measurementsfrom weathered outcrop surfaces, provision of a superiorsealing mechanism around the air injection zone, and thepotential for permeability measurement at multiple depthsbelow an outcrop surface. To date, data have been collectedfrom three diverse porous media: upper and lower shorefacesandstone (Escalante, Utah), saprolitic soils (Clemson, SouthCarolina), and nonwelded tuff (Bishop, California). The probehas proved durable and robust, with a single probe being sufficientto make thousands of measurements in a variety of environments.Data quality supports the conclusion that thedrillhole probe is a practical field instrument.
机译：使用Hassler池进行实验室渗透率测量 是行业标准;但是，始终如一地去除干扰 从易碎的露头采集岩石样品很困难。虽然 常规的表面密封微型渗透仪具有 被开发为渗透率测量的替代方法， 这些设备难以维护 处理露头不规则现象时，尖端密封件上的最佳力 在该领域;露头风化也是有问题的。 因为露头需要可靠的现场方法 研究，本文提出了一种创新的测量技术 原位渗透性。新型小钻孔的设计 讨论了微型渗透仪探头，以及随附的 分析技术以及仪器的尺寸和形状 平均音量。小直径孔[即1.8 厘米（0.7英寸）]，用砖石钻钻进露头， 然后进行钻孔吸尘，探头插入，密封扩展， 气体注入和本征渗透率的计算 通过测量注射压力，气体流量 速度和系统几何知识。优点 这种方法消除了可疑的测量 从风化的露头表面提供优质的 空气注入区周围的密封机构，以及 在多个深度进行渗透率测量的潜力 在露头表面以下。迄今为止，已经收集了数据 来自三种不同的多孔介质：上岸和下岸 砂岩（犹他州埃斯卡兰蒂），腐泥土（南部克莱姆森） 卡罗来纳州）和非焊接凝灰岩（加利福尼亚州毕晓普）。探头 已证明耐用且坚固，只需一个探针就足够了 在各种环境中进行数千次测量。 数据质量支持以下结论： 钻孔探头是一种实用的现场仪器。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号