The Hi-G dryer not only ensured environmental compliance with DTI regurgitation but exceeded the operator’s own in-house target of 80 GMS/kg. A total of 534 bbls of oil based mud wast recovered and Oil On Cuttings (OOC) figures were significantly reduced. It must be noted that the OOC target set by the operator was net even thought the majority of screens utilized on the shaker were 180-230 mesh. This can be directly attributed to GN screen technology which allows greater screening capacities from the same size shaker without increasing OOC level. Over the first there wells, fluid losses overboard equated to 0.085 bbls/ft.

It mud be noted that until the advent of GN Hi G technology, the traditional method for control of OOC was install a cuttings wash/cleaning system. This was not only an expensive solution. But in some cases a very inefficient one, which sometimes reported higher figures than that being discarded from the shaker. As it is, the Hi G dryer requires minimal supervision. Together with its low operation costs and significant savings in fluid, it is an attractive alternative to any cuttings cleaning system. It can also be utilized well with high cost “pseudo” mud and/or “closed loop” systems.

Another major benefit of the Hi G dryer technology, sometimes overlooked, is the elimination of whole mud losses from the shaker. This historically has ensured that the shakers were never run at their optimum capacity and thus the solids control system efficiency was adversely affected. Incorporating the Hi G dryer down steam allows the shakers to be run close to maximum capacity without the concern of whole mud losses.