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    SKIRTED MILL

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    • 裙式平底磨鞋(506).jpg
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    • 产品描述
      • Commodity name: SKIRTED MILL
      • Commodity ID: 1457329225097433088

              The skirt junk mill has a skirt, so it can cover the fishes in the skirt to ensure that the fish is always placed in the grinding range of the junk mill, and the bottom cutting teeth are used to grind the fish. This kind of milling shoe can not only mill the annular space by the skirt, but also grind the top of the fish, and use it to grind various swaying pipes and rods.

              The skirt junk mill has a skirt, so it can cover the fishes in the skirt to ensure that the fish is always placed in the grinding range of the junk mill, and the bottom cutting teeth are used to grind the fish. This kind of milling shoe can not only mill the annular space by the skirt, but also grind the top of the fish, and use it to grind various swaying pipes and rods.

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         Blade junk mill is a tool for grinding fallen objects in wells. Such as grinding drill bits, cones, drift, slips, flushing pipes, drill tool joints, deep well pump accessories and other fallen objects, because the blade can prevent the fishes from being slanted.       It is composed of a joint and wear-resistant alloy or alloy button. The body is equipped with the blade to prevent abrasion deviation when the fish is milled. The blade junk mill relying on the YD alloy protruding from the bottom surface and under the action of drilling pressure eat and grind the fallen objects, and the wear debris is brought out of the ground with the circulating well flushing fluid.  

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          String mill is used to trim casing that is slightly bent or slightly deformed, to trim sections that suffer resistance while running down the liner, and to trim casing in broken sections where the fracture is not much misaligned. When the dislocation of the upper and lower casing fracture is not large, the fracture can be repaired straight to facilitate the next operation，the essence of string mill is lengthen the cylindrical part of the taper mill, When the deformation section of the casing is grinding with a taper mill, and the other tool is still unable to pass smoothly, a string mill can be used. Its grinding effect is from the radial direction of the casing grinding, can increase the straightness of the casing.

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    PILOT MILL

        The pilot mill shoes is used to mill the fish which have inner bore and instability and shake in the down well, such as drill pipe, drill collar, tubing etc.    The pilot mill shoes is made up of mill shoe body and pilot cone, as the following picture. The upper part of the mill shoe body is inner thread, the lower part is cylinder whose diameter is bigger. Add YD alloy and anti-abrasive material on the back plane of pilot cone and mill shoe body. The pilot cone has the effect of leading and fixing the top of the fish. And there are 2-4 water crossing grooves on the back plane of the mill shoe body to make sure it can circulate unblocked.      The pilot mill shoes locate the fish by the cone which is entered into the fish, and then rotate with the drilling tool, the mill shoes welded with YD alloy grind the fish.  

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