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China, Chinese Wholesale 196.8mm/203.2mm Good Quality Drill Collar 9m Nc56-77/Nc56-88 to Drilling Oil1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Drilling ToolsDrill CollarDrill CollarDrilling Collar
Shijiazhuang Weilida Prospecting Machinery Co., Ltd.
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Product Description Product Description OUTER DIAMETERINNER DIAMETERLENGTHCHAMFERDIAMETERBLENDINGRATIONmminmminmmmm79.4 3 1/831.8 1 1/49140 76.2 2.57:188.9 3 1/238.1 1 1/29140 82.9 2.42:1104.8 4 1/850.8 2 9150 100.4 2.43:1120.7 4 3/450.8 2 9150 114.7 2.58:1127 5 57.2 2 1/49150 121 2.38:1152.4 6 57.2 2 1/49150/9450144.5 2.49:1152.4 6 71.4 2 13/169150/9450144.5 2.84:1158.8 6 1/457.2 2 1/49150/9450149.2 2.91:1158.8 6 1/471.4 2 13/169150/9450150 2.63:1165.1 6 1/257.2 2 1/49150/9450154.8 2.76:1165.1 6 1/271.4 2 13/169150/9450154.8 3.05:1171.4 6 3/457.2 2 1/49150/9450159.5 3.18:1171.4 6 3/471.4 2 13/169150/9450159.5 2.37:1177.8 7 57.2 2 1/49150/9450164.7 2.54:1177.8 7 71.4 2 13/169150/9450164.7 2.73:1184.2 7 1/471.4 2 13/169150/9450169.5 3.12:1196.8 7 3/471.4 2 13/169150/9450185.3 2.70:1203.2 8 71.4 2 13/169150/9450190.1 3.02:1209.6 8 1/471.4 2 13/169150/9450195.7 2.93:1228.6 9 71.4 2 13/169150/9450212.7 3.17:1241.3 9 1/276.2 3 9150/9450223.8 2.81:1247.6 9 3/476.2 3 9150/9450232.6 2.57:1254 10 76.2 3 9150/9450237.3 2.81:1279.4 11 76.2 3 9150/9450266.7 2.84:1 The drill collar is an important part of the drill string. It is mainly used to apply drilling pressure to the drill bit, keep the drill pipe in a state of tension, reduce the vibration, swing.and beating of the drill bit, make the drill bit work smoothly,and control the angle of inclination of well.Our company produces integral drill collars and spiral drill collars. The integral drill collar is a smooth thick-walled round tube with connecting threads processed on both ends The spiral drill collar is machined with three right-hand spiral grooves on the outer cylindrical surface of the round drill collar to reduce the contact area with the well wall and effectively prevent pressure differential stuck. The drill collar com-plies with API Spec7-1 specifications and is made of 4145H It has overall heat treatment, thread phosphate treatment,and good anti-sticking performance.It can also be customized and produced according to customer requirements.Our Company&Factory Scene Shijiazhuang Weilida Prospecting Machinery Co., Ltd. (formerly known as North Petroleum Geophysical Exploration Machinery Factory) was founded in 1988. It is located in Jinzhou City, Shijiazhuang City, an important industrial base in Hebei Province. It has a beautiful environment and a superior geographical location. It is 5 kilometers away from the Jinzhou South Exit of Shiheng Expressway, 15 kilometers away from Xinji South High-speed Railway Station, and 50 kilometers away from Zhengding International Airport, 3 hours away from Beijing Daxing International Airport. Our company has a modern factory area of 13,000 square meters and 80 employees.we are an enterprise that integrates the design, manufacturing, testing, domestic and foreign trade sales of drilling machinery and drilling tools, that are rare both at home and abroad. We can produce GB, Gost, API and IOS standards drilling tools, and can also design and manufacture special specifications of drilling tools according to customers needs. Our mainly produces: HDD drill pipe, DTH drill pipe, anchor drill pipe, coal mine drill pipe, oil drill pipe, water well drill pipe, geological exploration drill pipe, casing drilling tools, adapter sub, hydraulic pipe winching device, mud pump, portable drilling rig, core tube, casing, and so on. We can also design and manufacture drilling machinery equipment with special specifications according to customer needs. Our company has a number of domestic advanced CNC lathes, friction welding machines, pipe end upsetting and thickening machines, and complete production equipment. The quality management system has been established in accordance with ISO9001, and the professional system management personnel have conducted multiple trainings for all employees. The quality management system is in perfect and effective operation. From the signing of the order to the inspection and delivery of finished products, we use various identification methods such as labels, lettering, and spray paint, and record all data to ensure product traceability. We are also equipped with various specifications of thread gauges, pitch testing instruments, taper testing equipment, flaw testing equipment, hardness testing equipment, with the required physical and chemical testing equipment, and we can conduct comprehensive mechanical performance testing on drilling machinery equipment as required. We always take sincere cooperation, reliable quality and high-quality service as our corporate philosophy, improve self-management level, adjust market layout, improve product technology content, and solve customer needs, so that customers can buy with confidence and use comfortably.Our certificationQuality controlProcessPacking&DeliveryPacking Details : The drill pipes will be packed into bundles as 3*3,3*4,4*4 etc and loading into containers ,after black painting and thread protectors installation.Delivery Details : Usual loading port is Xingang port in Tianjin ,main port in north of China.1. The drill pipes will be packed into bundles as 3x3, 3x4, 4x4 etc. and loading into containers after black painting and thread protectors installation.2. For 20' container, the max loading weight is 21 metric tons3. For 40' container, the max loading weight is 27 metric tons.4. Usual loading port is XINGANG port in Tianjin, main port in north of China.water & air used drill stem pipe.Sales Team FAQQ: Are you trading company or manufacturer ?A: We are a professional manufacturer.Q: How long is your delivery time?A: Generally it is 10~20 days if the goods are in stock. or it is 20~30 days if the goods are not in stock, it is according to quantity.Q: How about discount?A: Price is based on products and order quantity.Q: Do you accept sample order? A: Yes sure, please contact us for details.
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