IODP Expedition 366, Hole U1498B - 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原位实测值，采集方式分为取芯作业完成后的电缆测井（wireline logging），与钻进过程中的随钻测井（Logging-While-Drilling, LWD）。任一井眼所涵盖的测井数据类型（包括电阻率、伽马辐射、声波速度、密度、井壁成像等），均由科学研究目标与作业约束条件决定。