Drilling Pump — Detailed Introduction The drilling pump, often also called the mud pump in the industry and colloquially referred to as the "mud injection pump" (凝浆泵) at some sites, is the most core power equipment in the circulating system of an oil drilling rig, vividly known as the "heart" of the rig. Relying on high-pressure reciprocating pumping action, it drives the drilling fluid to establish the entire downhole circulation loop, directly serving the whole drilling