A continuous supercritical fluid extraction system for the treatment of drilling waste

石油和天然气钻探涉及使用钻井液或泥浆，主要用于润滑钻头，并从钻井中清除岩石和岩石碎片并将其运输到地面。 目前用途：有两种类型的钻井液：水基钻井液和非水基钻井液。 非水钻井液主要由柴油、矿物油或合成油和添加剂组成，而水基钻井液由含有添加剂的盐水或淡水基组成。 非水性钻井液通常比水基钻井液性能更好，特别是在加拿大遇到的具有挑战性的钻井情况下，特别是在海上。 然而，尽管非水流体具有上级性能，但它们并不总是被使用，因为它们由于含有油而被认为不太环保。

Drilling for oil and gas involves the use of drilling fluids or muds, primarily to lubricate the drill bit and remove rock and rock fragments from the drilling well and transport them to the surface. There are two types of drilling fluids currently in use: water-based drilling fluids and non-aqueous drilling fluids. Non-aqueous drilling fluids are composed primarily of diesel oil, mineral oil or synthetic oil and additives while water-based fluids consist of a base of salt water or fresh water containing additives. Non-aqueous drilling fluids generally perform better than the water-based fluids, especially in the challenging drilling situations that are encountered in Canada, especially off-shore. However, despite their superior performance, non-aqueous fluids are not always used since they are considered less environmentally friendly due to the fact that they contain oil.