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China, Chinese API Oil Drilling Jar Oilfield Super Fishing Jar Bumper Jar Hydraulic-Mechanical Drilling Jar API 7-11 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 Lubricated fishing bumper sub uses the gravitational force of a downward moving heavy weight object to create the jarring force. It is engineered to withstand strong, sustained jarring force in harsh downhole applications, severe fishing operations and deep workover operations. This bumper sub is suitable for both middle and deep downhole operation. It has an inner chamber filled with hydraulic oil to help lengthen its service life.Lubricated fishing bumper sub is a widely used jarring tool because it is easy to operate and it assists in multiple applications. This bumper sub can provide necessary impact force in either the upward or downward direction during jarring operations. It can provide strong, continuous downward jarring force and medium, continuous upward jarring force. In addition, it can be used to engage and disengage releasable fishing tools. On top of that, this bumper sub may also act as a constant pressure drill tool.Working PrincipleEnergy 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 higher 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 jar. 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 - BXJ Lubricated Fishing Bumper SubParameter / ModelBXJ31BBXJ34BBXJ36BBXJ42BBXJ44BBXJ46BBXJ62BBXJ64BBXJ70BBXJ80BProduct Code1101000110200011030001105000110600011080001110000111100011130001115000O.D. (mm)808995108114121159165178203I.D. (mm)25.425.42832383857577076.2Sealing Pressure (MPa)30303030303030303030Max.Tensile load (tf)304050708090143143153220Work Stroke (mm)394394394394394400460460465465Connection2 3/8 REGNC26NC26NC31NC31NC38NC50NC50NC506 5/8 REGClosed Length (mm)2355240025142450245024462730273029503108 Detailed 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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