IODP Expedition 340, Hole U1397B - 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（Logging data）是对井眼周围地层物理性质的原位测量结果，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）采集得到。单口井的测井数据涵盖的参数类型（包括电阻率、伽马辐射、声波速度、密度、井眼成像等），取决于其科学目标与作业约束条件。