Kf system is designed for casing window milling and sidetracking in two trips. this system is most efficient in wells with high dogleg severity. kits are produced for window milling in 140, 146, 168, 178, 245 mm casings. two trip system kf includes: mechanical anchor.. Casing window milling assemblies include a conically-shaped section disposed along the tubular of the assembly. this conically-shaped section is a non-cutting portion that is preferably tapered toward the mill head.. Window milling taper is equipped with the deflector to complete window cutting in the casing. the window milling taper is integrated with window cutting and window repair, which can complete window cutting and repair operations once to improve construction speed, thus meeting site construction requirements properly..
An experimental set-up has been built for milling a 4 inch window in a 7 inch steel casing at surface in the laboratory. a specially designed bit developed at rif using abrasive jet cutting technology has been used for the window milling.. These milling tools are available from 3 1/2 to 17 1/2 in, with fishing necks from 2 7/8 to 9 1/2 in. taper mills. taper mills are designed specifically for milling through tight spots in tubulars. heavy crushed carbide dressing increases on-bottom time, and ground od and stabilizer pads eliminate the risk of cutting through casing.. €
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