Lube-Tech PUBLISHED BY LUBE: THE EUROPEAN LUBRICANTS INDUSTRY MAGAZINE
No.108 page 1
Maximising Environmental Grease Compounds for Extreme High Pressure High Temperature Applications
Peter Pratelli, Technical Manager UK Contributors: Don Oldiges, VP of Research & Development
Abstract Jet-Lube’s patented Environmentally Considered Formula (ECF) technology was developed to comply with the stringent North Sea environmental guidelines for offshore chemicals used on exploration drill rigs while maintaining the required performance standards. This paper explores the environmental properties of the binding grease, the constituent base oils, solid lubricants and additive chemistries to deliver a bio-degradable OSPAR compliant formula.
As conventional sources of oil and gas decline, operators are increasingly turning their attention to unexplored or underdeveloped areas with increasing focus on High Pressure High Temperature (HPHT) wells. Under such extreme conditions many items of equipment and tools simply cease to function. This imposes very real limitations on much of the technology currently available to help develop these reservoirs. Having developed a range of ECF drill collar and casing joint compounds Jet-Lube set about taking this technology a step further to develop a casing and tubing compound for extreme HPHT applications. By highly tuning existing market leading products and reformulating with new specially refined base oils, Jet-Lube had been able to develop a much improved product. This paper will focus on the challenges of delivering a bio-degradable product with such inherent instability for HPHT applications.
26 LUBE MAGAZINE NO.137 FEBRUARY 2017
Commercial Background The OSPAR Commission a successor to OSLO and Paris Commissions adopted strategies in 1998 to influence the protection and conservation of ecosystems and biological diversity in the North-East Atlantic. Particularly this manages use of hazardous chemicals in offshore and marine applications. Chemicals and lubricants used in offshore applications must achieve a permit to deck via reference to their Offshore Chemical Notification Scheme (OCNS) grading which is dependent on the chemical compositions, biodegradation, bioaccumulation and aquatic toxicities.
North Sea (UK) governed by The Centre for Environment, Fisheries and Aquaculture Science (CEFAS). Products are assigned an A to E rating with any relevant substation warnings for toxic components. E representing the best possible environmental performance.
Norwegian continental shelf governed by The State Pollution Control Authority (SFT). Colour based designations given from black to yellow. A green designation is given to water and specified inert materials that “Pose Little Or NO Risk” (PLONOR) to the environment. Yellow representing the best achievable designation for chemical mixtures such as thread compounds.
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