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China, Chinese API 7-1 Square or Hexagonal Kelly for Oilfield Drilling1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Other Petroleum Equipments MachinerySquare KellyHexagonal Kelly
Shandong Yacheng Petroleum Technology Co., Ltd.
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Product Description API 7-1 Square Or Hexagonal Kelly for Oilfield DrillingProduct DescriptionKelly is the main driver of the whole drill string.It transmits torsional energy from the rotary table through the drill string to the bit at the bottom of the hole. Kelly is a long square or hexagonal.precision machined heavy steel bar that is supported by the swivel through the rotary table and is connected to the first joint of drill pipe in the drill string. Straightness of the kelly is very crucial in the manufacturing process, thus straightness inspection are carried out before, during and after each machining operation. The flats are precision-milled to API specification.All milling processes are performed on specially designed rigid kelly mills to ensure tight tolerances and high quality drive section.Each kelly is furnished with a pressed steel thread protectors.Product ParametersManufactured from AISI4145H-modified, fully heat-treated alloy steel with a Brinell hardness range of 285-341BHN and a minimum average Charpy impact value of 40ft-Ibs; Ends and drive section,IDs and connections machined and inspected to API specification; Ultrasonic inspection is performed on all section; Shipped in a protective steel -cased scabbard; When ordering please specify: Kelly type (Square or hexagonal) Nominal size and overall length Upper and lower connection Technical specification and parameters SizeLengthinUpper box connectionLower pin connectionI.D.Driving sectionmminType(LH)O.D.ThreadO.D.Cross flatFor square kellyCross corner for hexa kellyStdoptionalStdoptional63.52 1/212.196 5/8REG4 1/2REG196.8146.0NC2685.731.863.583.3 76.2312.196 5/8REG4 1/2REG196.8146.0NC31104.844.476.2100.085.788.93 1/212.196 5/8REG4 1/2REG196.8146.0NC38120.657.288.9115.1100.8108.04 1/412.96 5/8REG4 1/2REG196.8146.0NC46158.871.4108.0141.3122.26 5/8REG4 1/2REG196.8146.0NC50161.971.4108.0141.3122.2133.45 1/412.96 5/8REG 196.8 5 1/2FH177.882.6133.3175.4151.66 5/8REG 196.8 NC56177.882.6133.3175.4151.6Company ProfileWe shandong yacheng petroleum technology are established in 2003 year, located in Dongying city, shengli oilfield,which is second largest oilfield of China. Our business scope includes oilfield equipment supply, such as, drilling equipment and spares, wellhead equipment ,oil recovery equipment. We have been served Sinopec -Shengli oilfield in the last 19 years, established a solid partnership and network with quality OEM factories. Based on our responsive and responsible engineering & commercial team, we can provide one-stop shop service to our customer, and package plan of procurement which brings added value in terms of delivery time, fair prices, inventory in stock. We are Looking forward to build up partnership with your company and provide our attentive service to you.CertificationsPackaging & ShippingFAQ1) About Packing Inner packing: white box, color boxes (upon request), Outer packing: cartons or pallets2) Terms of payment: We accept T/T,L/C3)Terms of Shipment: About 30 days after receiving the advance payment,or according to both parties agreement4)Ports of shipment: Tianjin,Qingdao, shanghai or other required Port, by sea or air5)Guarantee: One year since delivery.6)Inspection: 100% testing before delivery.
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