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China, Chinese API Qjz Mechanical Drilling Jar Full Mechanical Drilling Jar up and Down Jarring Tool for Oil Well Fishing1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Drilling ToolsDrilling JarQjz Mechanical Drilling JarDrilling up and Down Jar
TIANHE OIL GROUP HUIFENG PETROLEUM EQUIPMENT CO., LTD.
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Product Description QJZ mechanical drilling jar is fully mechanically operated and is an integrated unit that provides both up and down jarring operation. As part of the drill stem, it is used to free drill string components from sticking incidents and increase drilling efficiency by providing instantaneous jarring action without delay. The mechanical drilling jar relies on a trip and friction sleeve to activate jarring action. The jar is designed to trigger the jarring action when a sufficient amount of force (jar trip load) is applied to the jar in either up or down direction.Working principleUp JarringUp Jarring is achieved by pulling the drill string until it reaches the jar trip load. The jar trip load will cause the internal spring unit to deform, allowing the trip sleeve to engage the friction sleeve. When this happens, the mandrel is suddenly freed to release the jarring force. To reset the jar, remove the pull load by lowering the drill string. Down JarringThere is another set of internal spring sleeve located at the top of the slips. Down Jarring is achieved by lowering(pushing) the drill string until it reaches the jar trip load. The jar trip load will cause the internal spring unit to deform, allowing the trip sleeve to engage the friction sleeve. When this happens, the mandrel is suddenly freed to release the jarring force. To reset the jar, remove the downward load by pulling the drill string.Specifications - QJZ Mechanical Drilling JarModelQJZ95QJZ108QJZ121QJZ159QJZ165QJZ178QJZ203QJZ229Product Code16030001605000160800016100001611000161300016150001616000O.D. (mm)95108121159165178203229I.D. (mm)28385157575771.476.2Total Length (mm)60006000600069706970646873107820Upper Stroke (mm)200200200142142149145203Lower Stroke (mm)200200200172172168178203Max.Up Jarring Force (kN)200300430620620700800800Max.Down Jarring Force (kN)100150300360360420450450Max.Tension Load (kN)600800140022002200220025003000Max.Work Torque (kN.m)48101515152025ConnectionNC26NC31NC38NC46NC50NC506 5/8 Reg7 5/8RegFlexion Connection Length (mm)33983370334734563456347630482580Pumping Area (cm2)334450100100133176193Weight (kg)36043257311501240135017802375 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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