Oil casing development history

- Dec 13, 2020-

The history of oil casing development. After nearly 20 years of hard work, China's oil casing production has gone from scratch, from low price to high price, from low steel grade to API series products to special demand non-API products, from quantity to quality are close The level of foreign oil casing products. The domestic market share of China's oil well pipes has exceeded 80%, and has been a net export product for many years.
In 2011, China's crude oil output reached 204 million tons, an increase of 0.32% compared with the same period in 2010; natural gas production reached 102.531 billion cubic meters, a year-on-year increase of 6.9%, a record high. China is still in the stage of rapid development of urbanization and industrialization. It is expected that oil demand will grow at an average annual rate of about 4% in the next few years. The continuous increase in oil demand has promoted the rising demand for oil drilling equipment in China.
From the perspective of China's domestic distribution, the demand for oil casings is no longer concentrated in the eastern region. From the trend of domestic oil and gas field development, from the initial development of Daqing, Liaohe, Shengli and other eastern oil fields, it will turn to the development of western oil fields such as Sichuan and Xinjiang, paying attention to the trend of offshore oil fields, and will also develop from land to tidal flats and from shallow seas to deep seas. Drilling depth is getting deeper and deeper, drilling work conditions are becoming more and more complex, and the requirements for oil casings are bound to become higher and higher.

Specifications List
Hot Rolled/Cold Drawn
Steel grades
Q195, Q235A-B, Q345A-E, 20#, 10#,16Mn, ASTM A36,ASTM A500,
ASTM A53, ASTM 106, SS400, St37, St52, S235JR, S355TRH ect.
GB/T 3091-2001,GB/T13912-2002, BS 1387, ASTM F1083 ect.
Pipe ends
plain, beveled, threaded, socket with holes, with PVC clap/ coupling/ clamp,
or as customers' requirement
liquid delivery (pump well, gas, water), construction pipe, structural
pipe(greenhouse structure, fence post), curtain wall, machinery part ect.

in bundle, no other package or wrapped with waterproof,
or as customers' requirement
Delivery Time
10days from stock; 15-20days produced according to the qty
Payment Term
T/T or L/C
Price Term
Loading Port
Xingang China
1.All the pipes is high-frequency welded.
2.Both inner and outer welded stab can be removed.
3.Special design available according to requirement.
4.Pipe can be necked down and punched holes.
5.Supplying BV or SGS Inspection if client need.


Q1. How long can make delivery?
A: For stock products,will make shipments in 2-5 days after receiving deposit or receiving T/T;
for products need new production for common materials,usually make shipments in 7-10 days;
for products need new special and rare materials,usually need 15-20 days to make shipment.

Q2. Can you provide the samples?
A:Samples can be provided with samples' charge and courier fee by the buyer's side.

Q3. What's your payment terms?
A: Down payments 30%TT and balance 70% TT or L/C.

Q4. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive.
Airline and sea shipping also optional.
For mass products, ship freight is prefered.

Q5. Can you accept customize?
A: Yes. It can be customized as per the customers' request.

Q6. How to ensure the quality?
A:Mill Test Certificate is supplied with shipment.
If needed, a Third Party Inspection is acceptable or SGS.