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    KX FISHING BUMPER SUB

    　　Fishing bumper sub is a kind of mechanical jarring tool. It can repeatedly jar on stuck drill stem, make stuck point loose and release, if lifting and jarring cannot release stuck, it still can rotate and make releasing fishing tools to release fish. When fishing bumper sub work with mechanical internal cutter, it can make internal cutter get a preset constant forward force, so that it can make sure stable cutting. When it works with back off tools, it can compensate a up stroke for connection after backing off.

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    BX LUBRICATED FISHING BUMPER SUB

    　　The working chamber of BXZ lubricated fishing bumper sub is filled with hard wearing hydraulic oil, with lubrication when working, to prolong the service life andit has a long stroke and large jarring force. According to specific instance, the releasing stuck of downward jarring should be different on various occasions.

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    DX SURFACE BUMPER JAR

    　　Surface bumper jar is releasing stuck for down hole tools on the ground, It apply to release stuck which need downward jarring like key slot、shrink neck、fall off block、sticking to suck etc. it also can relieve down hole fishing tools. Surface bumper jar is working on wellhead, no matter what part was stuck of drill stem、slips down hole tools stuck、fishing tools stuck、or testing、well repairing、well washing tools stuck, it all can use surface bumper jar to release stuck. DX surface bumper jar is a new type mechanical surface bumper jar, it overcome its former friction type’s defect like slips easy to burn、adjusting not exact, it can adjust jarring release force at any time, and easy、exact、stable to adjust.

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    MULTI-FUNCTION CASING SCRAPER

    　　Multi-function casing scraper is a new type casing scraper, it can work as non-rotating fixed type casing scraper, and also can work as a rotating type casing scraper. Besides normal cleaning operation, it should stop running in the drill string when stuck, then should connect the washover tools, and applying some pull force to shear the pin, then shift to rotating mode, then proceed releasing stuck operation, like providing a torque, pushing, circulation and jarring until recover the normal situation, then continue to run in drill string.

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    JY CASING SCRAPER

    　　JY casing scraper can work as non-rotating fixed type casing scraper, and also can work as a rotating type casing scraper. When it used as fixed casing scraper, as long as increase adjustable pad locates in top sub to make it not rotate, otherwise decrease adjustable pad, it will be used as rotating casing scraper. It is mainly used in cleaning cement, sandy, residual bullets, scratches, paraffin, burs and other attachments from inner wall of casing, in order to keep inner wall of casing clean.

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    CASING SCRAPER

    　　Casing scraper is mainly used in cleaning cement, sandy, residual bullets, scratches, paraffin, burs and other attachments from inner wall of casing, to keep inner wall of casing clean,so as to run into various downhole tools.

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