Thermochemical capsules clean paraffin from tubing

A field demonstration at the Rocky Mountain Oilfield Testing Center (RMOTC), near Casper Wyo. showed that a thermochemical capsule dropped down tubulars effectively removed paraffin blockage.The KKG Group, a Russian-American partnership based in Vancouver, Wash., and Krasnoyarsk, Russia developed the capsules.The technology is for wells in which the capsule's fall is not obstructed. The technology could replace such paraffin removal techniques as mechanical cutters, injection of microbes or chemicals, and hot-oiling of wells.In wells with sucker rods, the rods would have to be removed prior to dropping the capsule.Device description Placement of the thermochemical capsules in a flowi...

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