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Materials
tubing of oil wells
Semi-Automatic Paraffin Scraping Unit the positive and economical solution to paraffin problems in flowing or gas lift wells.
Wireline tools have been used for many years to scrape paraffin and other residual materials from the tubing of oil wells. Time has proven this method to be an effective way of removing these deposits. Increasing labor cost, lower well allowables, and the desire to operate production with fewer personnel prompted a search for a way this positive method could be done more economically. Years were spent experimenting with and testing different ways to build a wireline unit which would perform this operation automatically and still be simple and economical enough for practical and successful application in the field. Excessive complexities in instruments and controls (i.e. keeping the wireline for overrunning the tools, reversing the tools at the desired depth, stopping the tools on the return to the surface) were a few of the problems in developing a simple, fool-proof, yet inexpensive unit. In 1962, Gem-Trim, with the much appreciated aid of others, solved these problems with the development of several, relatively simple innovations. Not only did these unique developments greatly simplify and improve the units operation, they also reduced the expense of manufacturing and installing them by almost one half the cost of previous, more complicated models. Since then Gem-Trim Paraffin Scraping Units have been installed and used regularly on nearly 2000 flowing and gas wells in the United States and abroad, to automatically scrape paraffin. Gem-Trim Paraffin Scrapers are built and sold under U.S. Patents Numbers 3, 072, 194 - 3, 149, 675 and 3, 165, 155 and others pending.