Well logging chronicles the depths, subsurface formations and events encountered while drilling. Well logs can include visual observations or be made by instruments lowered into the well during ...

Open-hole logging refers to logging operations that are performed on a well before the wellbore has been cased and cemented. In other words, the logging is done through the bare rock sides of the ...

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The 41st Chinese Antarctic expedition is pioneering a more efficient and cost-effective method for well-logging in Antarctica, with researchers utilizing existing drill holes to gather valuable data ...