premium connection nipple joint
| Company Information |
TIANJIN DALIPU OIL COUNTRY TUBULAR GOODS CO.,LTD is a modern professional industry and trade combined enterprise, specializing in producing and trading seamless steel pipes.
API 5CT series oil casing,tubing, coupling, pup joints and other oil field material accessories; API 5CT oil and gas pipeline pipe, alloy pipe as the main products, and dedicated to all kinds of oil field high resistanc corrosion products, all kinds if gas tight premium thread development and sales,to meet the needs of different types of customes.
Product Introduction |
 premium connection nipple joint Advances in the petroleum industry, especially drilling and production technologies, have promoted research and development of special threaded casings. With the development of deep wells, ultra-deep wells, high-pressure oil and gas wells, heavy oil thermal recovery wells, heavy corrosion wells, directional wells, etc., more and more stringent technical requirements are imposed on oil casing. API round thread and partial trapezoidal thread joints can not meet the requirements of oil and gas wells with harsh environmental conditions in terms of air tightness, connection strength and corrosion resistance, forcing people to research and develop special thread joints with more reliable performance. The research and development of special threaded oil casings started abroad in the late 1940s, put into use in the 1960s, and were widely used in the 1980s. At present, some new buckle types are introduced every year. In the special thread research and development, small-scale mini experiments, full-scale evaluation tests, and finite element and experimental stress analysis techniques are mainly used. Breakthroughs have been made in the following aspects: 1. Sealing technology, through elasticity and metal sealing structure The design is that the airtight resistance of the street reaches the yield pressure in the tube. Second, the high connection strength greatly improves the stress distribution of the joint through the design of the thread buckle. The coupling strength of the coupling connection reaches or exceeds the strength of the pipe. Problems with slippage. |
| Prodection Details |
 premium thread |  gas tigh thread |
| Product Package |
 wooden case |  wooden case |  wooden case |
| Exhibition Exchange |
 exhibition |  exhibition |  customer |
| FAQ |
Q1: How long is your delivery time?
According to the quantity of per size.Generally it is with 25 days
Q2: When can I get the price？
We usually quote within 24 hours after getting your detailes requirements,like size,quantity etc.If it is an urgent order,you can call us directly
Q3: What is your terms of payment ?
30% T/T in advance ,balance before shippment.
Q4: What is your terms of delivery ?
We accept FOB,CFR,CIF,EXW,etc.You can choose the most convenient way for you.
