IODP Expedition 400, Hole U1604B - 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.

测井数据是井眼周围地层物理特性的原位测量结果，采集时机包括取心作业完成后（电缆测井，wireline logging）或钻井过程中（随钻测井，Logging-While-Drilling, LWD）。单井所采集的数据涵盖的参数范围（包括电阻率、伽马辐射、声波速度、密度、井眼成像测井等）取决于科学目标与作业约束条件。