TCI Product Usage Guide for: CEFAS / OCNS / OSPAR / PLONOR North Sea


CEFAS: The Centre for Environment, Fisheries and Aquaculture Science, part of the UK Governmental Body. CEFAS advises on regulatory activities and statutory responsibilities for industry and also provides information about relevant policies direct to specific industry sectors.

CEFAS Industry Information

OCNS: The Offshore Chemical Notification Scheme (OCNS) manages chemical use and discharge by the UK and Netherlands offshore petroleum industries. The scheme is regulated in the UK by the Department of Energy and Climate Change using scientific and environmental advice from CEFAS and Marine Scotland. In the Netherlands the scheme is regulated by the State Supervision of Mines with scientific and environmental advice from CEFAS and Netherlands government agencies.

Offshore Chemical Notification Scheme

OSPAR: Is the mechanism by which fifteen Governments of the western coasts and catchments of Europe, together with the European Community, cooperate to protect the marine environment of the North-East Atlantic. The new annex on biodiversity and ecosystems was adopted in 1998 to cover non-polluting human activities that can adversely affect the sea. The fifteen Governments are Belgium, Denmark, Finland, France, Germany, Iceland, Ireland, Luxembourg, The Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.

PLONOR: OSPAR list of substances used and discharged offshore which “Pose Little or No Risk”.

HOCNF: Harmonized Offshore Chemical Notification Format. This is the documentation needed to register our products with the OCNS. The qualification form is 5-6 pages. The OCNS team will process the data from the HOCNF form, generate a template (certificate of use) and place your chemical product on the Definitive Ranked Lists of Registered Products. The period of certification is normally for three years. The template shows the product name, expiry date, and CHARM type. It will also show either a Hazard Quotient (HQ) or an OCNS letter grouping representing the environmental hazard of that particular product.

Guide to Chemical Registration

Product Name Product Usage / Description CEFAS Registration #
EZ Squeeze® High Fluid Loss / High Solids Lost Circulation Squeeze Material used for severe – moderate losses. 24047
EZ Thin E Multi-purpose thinner/mud conditioner. Reduces viscosity & high temp – high pressure fluid loss. 24286
Turbo De-Foamer DNS Specialty formulated blend of de-foaming agents. 24162
SwelLCM® Gelled, Swelling Sealing agents. Used as a pre-squeeze or pre-cementing application for moderate to severe lost circulation. 24059
SwelLCM® Activator Formulated to raise (become acidic) pH of water when mixing SwelLCM pill. 24062
Premium Seal Fine® Micronized cellulose fiber used to seal permeable and semi-permeable formations. Can be used in a sweep application or can be spotted as a pill. 24119
Premium Seal Regular® Micronized cellulose fiber used to seal permeable and semi-permeable formations. Can be used in a sweep application or can be spotted as a pill 24118