HEILONGJIANG NORTH SHUANGJIA DRILLING TOOLS CO., LTD._Others_OIL DOWNHOLE TOOLS_MANUFACTURER OF OIL DOWNHOLE TOOLS； CONTACT PERSON: Iris lea E-MAIL：irislea@sj-drilling.com

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CASING RUNNING TOOLS

Casing running tool is a new technology for running casing, for the limitation of normal running casing operation, we researched and developed the casing running tool which has advantages of safety and high-efficiency, according to different requirements, can be equipped with intelligent monitoring system and other related accessories which independent research and development by NSJ-DRILLING.

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ULTRASONIC SPRAYING

The jars of NSJ-DRILLING adopt advanced ultrasonic spraying technology, Tungsten carbide particles impact deposition at a certain speed on the product surface to form a spray coating with certain characteristics, the spray coating forms a protective film to protect the spray coating and the base material from corrosion, improve the service life and safety of the product.

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TORQUE REDUCTION SUB

Torque reduction sub is to reduce the excessive torque generated by drilling in short radius horizontal section and large angle well section. It is mainly connected between short radius horizontal section and large angle well section, propose to connect a torque reduction sub by every 60ft, it can reduce 25-35% torque after using this tool, it’s slip spiral inner sleeve, straight rib outer sleeve and body mandrel are relatively in non-rotating condition.

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STABILIZER PROCESSING

According to the stabilizer processing technology, the professional technicians of NSJ-DRILLING are using CNC drilling machine to process the HF4000 stabilizer alloy holes after precise programming, which greatly improves the work efficiency.

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MULTI-FUCTION 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.

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