Stratigraphic Surfaces Database.

This database stores down-hole stratigraphic data to complement the seismic surface picks stored in the Seismic Locations And Sections Database (LOCSEC). Because these surfaces are chosen for their visibility on seismic data, they may not be directly equivalent to established BGS lithostratigraphic and/or choronstratigraphic divisions. However, the local coding system is based on and can relate to the BGS stratigraphic LEXICON. Stratigraphic picks are stored in terms of depth and seismic one-way travel time. Local borehole summary information (location, elevation, etc.) is used because both onshore and offshore boreholes are stored in this database. These data can be related to the BGS onshore borehole database by borehole registration, and to the offshore well database by DTI well-id. Additional tables (under development) provide information on hydrocarbon tests and their results. Almost all data are within the UK Onshore area; although there are some UK near-shore and offshore (North Sea, Irish Sea).本数据库存储井下地层数据，用于补充存储于地震点位与剖面数据库（Seismic Locations And Sections Database，LOCSEC）中的地震界面拾取数据。由于此类界面是依据其在地震数据中的可识别性选取的，因此未必与英国地质调查局（British Geological Survey，BGS）既定的岩石地层及年代地层划分直接对应。不过，本地编码体系以BGS地层词典（stratigraphic LEXICON）为基础，且可与其建立关联。地层界面拾取数据以深度及地震单向传播时间的形式存储。鉴于本数据库同时收录陆上与海上钻孔数据，因此采用钻孔概要本地信息（包括点位、海拔等）。此类数据可通过钻孔注册号关联至BGS陆上钻孔数据库，亦可通过英国贸易工业部（Department of Trade and Industry，DTI）井号关联至海上钻井数据库。另有部分尚在开发中的附表，可提供油气测试及其成果相关信息。绝大多数数据覆盖英国陆上区域，同时包含少量英国近岸及近海区域（北海、爱尔兰海）的数据。