2D seismic Survey

This Dataset contains a GIS vector polyline of 11,770 2D seismic survey lines undertaken in seas around Ireland. Data includes contractor, line, survey Id, company, survey area name, project code and prefix details. A 2D survey typically contains numerous lines acquired orthogonally to the strike of Geological structures (such as as FAULTS and folds) with a minimum of lines acquired parallel to Geological structures to allow line-to-line tying of the seismic data and interpretation and mapping of structures. The data has been collected in seas around Ireland including the North Atlantic Ocean, Irish Sea, Saint George 's Channel, Celtic Sea, North Channel and Inner Seas off the west coast of Scotland. The data has been collected for the period 1965-2015. 2D seismic survey data collection involves sound waves which are bounced off underground rock formations and the waves that reflect back to the surface are Captured by recording Sensors for later analysis. Seismic surveys are used to produce Detailed images of local geology to determine the location and size of possible oil and gas Reserves. Data has been collated by the Petroleum Affairs Division as part of its role to maximise the benefits to the Irish State from exploration for and production (E and P) of indigenous oil and gas resources. The Dataset is considered an accurate recorded representation of 2D seismic surveys completed and logged by the Petroleum Affairs Division.本数据集收录了爱尔兰周边海域开展的11770条二维地震勘探（2D seismic survey）测线的GIS矢量折线数据。数据包含承包商信息、测线编号、勘探ID、作业公司、勘探区域名称、项目代码及前缀详情。二维地震勘探通常会布设大量垂直于地质构造走向（如断层与褶皱）的测线，并辅以至少少量平行于构造走向的测线，以实现地震数据的测线间联测、构造解释与构造成图。本次数据采集覆盖爱尔兰周边海域，包括北大西洋、爱尔兰海、圣乔治海峡、凯尔特海、北海峡以及苏格兰西海岸近海海域，采集时间跨度为1965年至2015年。二维地震勘探数据采集通过向地下岩层发射声波，由记录传感器捕获反射回地表的声波信号，以供后续分析使用。地震勘探可生成高精度的局部地质图像，用于确定潜在油气藏的位置与规模。本数据集由爱尔兰石油事务部整理完成，该部门的核心职责之一便是最大化本土油气资源勘探与开发（E&P）为爱尔兰国家带来的经济收益。本数据集被认为是石油事务部完成并备案的二维地震勘探项目的精准存档记录。