ODP Leg 121, Hole 752B - 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数据，采集时机包括取芯作业完成后开展的电缆测井（wireline logging），以及钻井过程中进行的随钻测井（Logging-While-Drilling，LWD）。任一井眼所涵盖的测量数据参数范围（涵盖电阻率、伽马辐射、声波速度、密度、井眼成像测井等），均由其科学目标与作业限制条件所决定。