The offshore E&P business is becoming increasingly focussed on environmental issues brought on in part by an increased awareness of the impact the industry has on the environment and the sensitive areas being explored. The fertile fishing waters in the Norwegian Sea are governed by some of the strictest environmental legislation that exists for offshore oil drilling. Incentives to minimize the exposure of chemicals to the environment have been sought after by operating companies in these waters. The work described within highlights advancements made in minimizing the chemical requirements for cement slurries used in such sensitive waters.
This paper outlines efforts which were put forth to not only reduce the environmental impact by dramatically reducing the requirement for chemicals but also to provide a technically superior cement slurry via capitalizing on the particle physics of the dry components in the cement blend.