Assertion: oil well's depth | /r/DistinctFrom | the drillersdepth
Facets:
value: frequently
type: TEMPORAL
Source sentences:
text: At the time of writing, the common practice remains that the petrophysicists or geologists define the "official depths" in a well, and these depths are frequently different from the "drillers' depth", after various corrections, tie-ins, etc., have been applied.