This paper presents a concept designed to meet and be compliant with the environmental legislation requirements of managing drilling fluids, completion fluids and waste from the oil and gas industry in the arctic and Barents Sea region. Data will be presented in this paper to document the reduction in direct environmental impact, reduced risk as well as the profitable returns; like cost savings for the operators and the drilling fluid supplier as a result from applying these novel technologies.

A total drilling fluid and waste management concept for drilling and well operations was developed to merge the operators cost reduction strategies and reduced environmental impact with the fluids and equipment supplier's technology and business incentives. Key elements in this concept was; (1) the development of both water based and oil based environmental friendly drilling fluids for challenging arctic conditions, (2) the EnviroUnit for separation, recovery and recycling on location, (3) CleanCut for enclosed cuttings containment completely reliable with no operational downtime or due to harsh weather conditions when drilling operations are distant from shore and finally (4) the onshore EnviroCenter with capacity and technology to receive, treat, store, manufacture and deliver drilling fluids and related liquid and cuttings waste streams.

Presented data show oil based drilling special waste reduction of over 90%. All recovered oil based drilling fluid has been recycled, upgraded and reused. A reduction in the new oil based drilling fluid consumption has been experienced reducing manufacturing, transport and storage cost. All separated waste water has been cleaned to well within the approved discharge regulations.

Whenever possible, the total fluids and waste management concept should be applied. Oil recovered from cuttings transported onshore and processed via thermal treatment has been successfully recycled as drilling fluid base oil. This total fluids and waste management concept has been established as a business "standard". The success is however closely linked to the close team-work with the operator and across the traditional service lines of fluids; solids control, waste management, associated waste handling logistics, processing, treatment and disposal. It will achieve full environmental impact and benefit when applied to large-scale operation.

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