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China, Chinese API Oil Well Fishing Bumper Sub Mechanical Jarring Tool1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Drilling ToolsDrilling JarOil Well Fishing Bumper SubUnder Drilling Jar
TIANHE OIL GROUP HUIFENG PETROLEUM EQUIPMENT CO., LTD.
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Product Description KXJ type bumper sub is a mechanical jarring tool. It allows operators to bump up or down repeatedly until the fishing objectives are met or when the stuck drill stem is released. In event where stuck drill stem cannot be released by lifting and jarring, the bumper sub can be rotated to engage and disengage releasable fishing tools to release the fish. In milling and cutting operations, the bumper sub is used to provide feeding force to the mechanical internal cutter, ensuring a reliable and even cut. When the bumper sub is used with a reversing unit, it helps to compensate the rising stroke for threads after reversing.Working mechanismEnergy conversion in jarring operationDownward jarring forced is achieved through the conversion of stored energy to kinetic energy. When lift load is applied to the drill stem, the bumper jar is pulled open to a certain height creating a potential energy. As more lift load is applied, the drill stem begins to accumulate stored strain energy due to the spring extension. Sudden release of the lift load will convert the stored strain energy in the drill stem to a downward acceleration force. As the drill stem accelerate downwards, the bumper jar is released towards its closed position, releasing its potential energy. At this instant, both released energies combine, creating a large downward jarring force. Main factors that influence the jarring forceHanging weight on top of drill stem with the bumper jar. Higher hanging weight will create higher jarring force.Length of spring extension of the drill stem. Longer length of spring extension during lifting will provide a greater jarring force.Stroke length of the bumper jar. Longer stroke length will provide a bigger jarring force.Specifications - KXJ Type Fishing Bumper Sub Parameter/ModelKXJ31BKXJ34BKXJ36BKXJ42BKXJ44BKXJ46BKXJ62BKXJ64BKXJ70BKXJ76BKXJ80BKXJ85BKXJ90BProduct Code0401100040200004030000405000040600004080000410000041100004130000414000041500004190000416000O.D. (mm)798995108114121159165178197203219229I.D. (mm)25.4283238383851517070707676Sealing Pressure (MPa)30303030303030303030303030Max.Tensile Load (kN)300400500700112012001430143015301630163016302200Max.Work Torque (kN.m)33.5467813131520202025Work Stroke (mm)508508508100010001000140014001400150015005081500Connection2 3/8REGNC26NC26NC31NC31NC38NC50NC50NC506 5/8REG6 5/8REG6 5/8REG7 5/8REGClosed Length (mm)1410143814102100210021102604260426502730273017692760Weight (kg)45505895117146240285330430455383660Detailed PhotosCertificationsPackaging & Shipping Company ProfileOur AdvantagesTianhe principle is to offer high quality products at competitive price to benefit our customers and the industry in the long run. We are the Leading manufacturer in China since 1973 for drilling /fishing /milling equipment for oil and gas. We have established a complete quality control system, all products& equipments manufactured as per international standard and API standard.Competitive Advantages1. We offer high quality products at competitive price.2. Shortest delivery time & Flexible payment terms.3. Full range of drilling /fishing /milling equipment for oil and gas. 4. Timely after-sale service.5. Imported International brands Machines such as Japan Mazak machining center, Austria WFL machining center etc6. Complete quality control system, offices and testing equipment. FAQDear customer,Thanks for your time of visiting us on made in china, if you have any further questions and needs, please kindly inform us by inquiry online or contact us by below information.We look forward to your kind reply, thanks very much.Ms. DongyanSales ManagerTianhe Oil Group Huifeng Petroleum Equipment Co., Ltd.
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