12.2 BhaRun Topic Version1Published11/11/2016Topic Change HistoryFor StandardWITSML v2.0 BhaRun Schema. 12.2.1 BhaRun The object used to capture information about one run of the drill string into and out of the hole. The drill string configuration is described in the Tubular object. That is, one drill string configuration may be used for many runs. 12.2.2 BhaStatus Stage of the BHA (plan, progress, final) 12.2.3 DrillingParams The bottomhole assembly drilling parameters schema, which contains statistical and calculated operations data for the run, related to depths, activities, temperature, pressure, flow rates, torque, etc. 12.2.4 MudSubClass The name of a data extension.