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Colorado Oil and Gas Conservation Commission was added to the suit claiming the ban conflicted with state law. A recent judgment by Judge D.D. Mallard in Boulder County ruled the ban in Longmont was invalid and preempted by the Colorado Oil and Gas Conservation Act. The ruling also stated the ban on hydraulic fracturing prevents the efficient development and production of oil and gas resources. Colorado Attorney General John Suthers agreed stating, “The law regard- ing preemption of local oil and gas reg- ulation by the Colorado Oil and Gas Conservation Act is clear, and the court got it right. Under the current law, local governments can’t ban fracking.” According to state data, most oil and gas wells in Colorado require hydraulic fracturing. The state is also suing the city, claiming only the state can regulate dril- ling, siting, and operations. WorldWide Drilling Resource ® will keep you informed of any updates on this situation. 19 WorldWide Drilling Resource ® DECEMBER 2014 Hydraulic Training by J. Eric Freimuth Hydraulic Training Associates Revisiting System Cleanliness Part 2 As we discussed in our last article, cleanliness is the primary means of ensur- ing satisfactory hydraulic systems life. When it comes to filters, it is impor- tant to know not all filters are the same. Just because it is rated for a certain micron, does not mean you are getting the same results. To explain, I need to help you understand what a micron is. Micron is the designation used to de- scribe particle sizes or clearances in hydraulic components. Amicron is equal to 39 millionths of an inch. To put this into perspective, the smallest dot that can be seen by the naked eye is 40 microns. As you are aware, most systems use a 25-micron filter for inlets to the pump and a 10-micron to filter from the pumps to the systems. Most all hydraulic fluid delivered in bar- rels or bulk already has 14 micron ele- ments added to the oil for protection of wear parts and bearing lubrication. When filtering with a 10-micron fil- ter, are you getting all the contaminants? To know this, one must understand the beta ratio of a filter. Filtration devices are used to filter particles out of the system’s fluid. A filter’s efficiency is rated with a beta ratio. The beta ratio is the number of particles upstream from the filter that are larger than the filter’s micron rating, divided by the number of particles down- stream larger than the filter’s micron rating. If we were able to see an inside view of a filter in action and have two different filters, one with a beta ratio of 2 and another with the beta ratio of 200, which filter would be chosen? The answer lies in the understanding of what this means. I will leave you with this image and explain in my next article. Eric Eric Freimuth may be contacted via e-mail at michele@ worldwidedrillingresource.com City’s Ban on Hydraulic Fracturing is Ruled Invalid Compiled by Bonnie Love, Editor WorldWide Drilling Resource ® In 2012, voters in the city of Longmont, Colorado, approved a ban on hydraulic fracturing. Soon after, the Colorado Oil & Gas Association filed suit, and the ~ The Centerline 7 1/2” x 10” hydraulic drive duplex mud pump ~ Fits in the place of a common 5” x 6” duplex ~ weighs 1000 lbs less ~ pumps twice the rated flow~at over twice the rated pressure ~ Centerline Manufacturing Co. 903-725-6978 ~ www.centerlinemanufacturing.com ~ Mud pumps for the 21st century ~ Monopumps models rated: 180 gpm Duplex models rated: 300 gpm Triplex models rated: 450 gpm 500 or 800 psi models available in aluminum or iron. U.S. Pat. #6,769,884 and others pending ~ Centerline mud pumps are getting the job done from Canada to Australia, China to Peru ~ Centerline Manufacturing is proud to be your complete stocking source for American Manufacturing mud pump parts!!