ODP Leg 204, Hole 1245A - Well Logging Data

Logging data are measurements of physical properties of the formation surrounding a borehole, acquired in situ after completion of coring (wireline logging) or during drilling (Logging-While-Drilling, LWD). The range of data (resistivity, gamma radiation, velocity, density, borehole images,…) in any hole depends on the scientific objectives and operational constraints.测井数据为井眼周围地层物理特性的测量值，可在取心作业完成后（电缆测井（wireline logging））或钻井过程中（随钻测井（Logging-While-Drilling, LWD））原位采集获取。任一井眼所涵盖的测井数据类型（包括电阻率（resistivity）、伽马辐射（gamma radiation）、声波速度（velocity）、密度（density）、井眼成像（borehole images）等），均由其科学目标与作业约束条件共同决定。