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首页> 外文会议>Shale energy engineering conference 2014: technical challenges, environmental issues, and pubulic policy >The Role of Shallow Surface Investigations in the Appalachian Shale Energy Development
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The Role of Shallow Surface Investigations in the Appalachian Shale Energy Development

机译：浅层表面调查在阿巴拉契亚页岩能量开发中的作用

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摘要

Engineers and geologists within the Appalachian Basin encompassing the Utica and Marcellus Formations focus on the location and composition of shale layers located thousands of feet below the Earth's surface. However the soil and rock encountered within the top 30 meters (100 ft) can have a direct impact on the ability of the resources to be developed. A properly designed geotechnical investigation consisting of site reconnaissance, geophysics and/or geotechnical drilling can assist in identification of and anticipatory design for geohazards from the construction phase through lifetime of a well pads, water impoundments, midstream transmission systems, or access roads. This paper presents three case studies of geotechnical investigations for midstream operations that were performed during the preliminary design phase of the projects. Case Study #1 consists of a geophysical investigation performed on sensitive federal land in conjunction with geotechnical drilling operations in order to identify the appropriate geometry for a horizontal directional drill (HDD) installation of a 0.61 m (2 ft) diameter pipeline. Case Study #2 discusses a geotechnical drilling investigation and foundation design performed for the construction of a natural gas transmission facility. Case Study #3 presents the geotechnical drilling investigation for the design of a structure to support a natural gas transmission line/state route crossing located in an area that is to be subjected to longwall mining in the near future.
机译：阿巴拉契亚盆地中包括Utica和Marcellus地层的工程师和地质学家重点研究了位于地球表面以下数千英尺的页岩层的位置和组成。但是，在顶部30米（100英尺）内遇到的土壤和岩石会直接影响待开发资源的能力。经过适当设计的岩土勘测，包括现场勘察，地球物理和/或岩土钻探，可以帮助从施工阶段直至井眼，蓄水库，中游输水系统或通道的使用寿命，识别和预测地质灾害。本文介绍了在项目的初步设计阶段对中游作业进行岩土工程调查的三个案例研究。案例研究1包括在敏感的联邦土地上进行的地球物理调查以及岩土钻探操作，以确定用于直径为0.61 m（2 ft）的水平定向钻探（HDD）安装的合适几何形状。案例研究2讨论了用于天然气传输设施建设的岩土钻探研究和地基设计。案例研究3提出了岩土钻探研究，以设计结构，以支持位于不久的将来要进行长壁开采的区域中的天然气传输线/州际通道交叉口。

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