5L Oil Well Casing Pipe OCTG Casing Pipe

Product Description

Casing Pipe:

Petroleum casing pipes are steel pipes used to support the walls of oil and gas wells to ensure the normal operation
of the entire oilwell after drilling and completion. Each well uses several layers of casing according to different drilling
depths andgeological conditions.Cement is used to cement the casing after the casing is down. It is different from
tubing and drill pipe and cannot bereused. It is adisposable material. Therefore, casing consumption accounts for more
than 70% of all oil well pipes.According to the application, petroleum casing can be divided into conduit casing, surface
casing, technical casing and reservoir casing.
 

Petroleum casing pipes can be divided into different steel grades according to the strength of the steel itself, namely 
J55, K55, N80,L80, C90, T95, P110, Q125, V150, etc. Processing form of casing end: short round thread, long round thread,
partial trapezoidal thread,special buckle type, etc. Different well conditions and depths have different steel grades. In a
corrosive environment, the casing itself is also required to have corrosion resistance. In places with complex geological conditions,
the casing is also required to have anti-collapseperformance. It is mainly used to support the well wall during drilling and after
completion to ensure the progress of the drilling processand the normal operation of the entire well after completion.
 

The casing is generally used for the borehole wall support in the drilling as well as after the completion of a well, so as to
make sure the smooth running of the drilling process and also the normal procedure of the whole oil well after well completion.
As a result of the advancement in recent years, making use of the product is much more substantial. It is generally utilized in oil,
gas, coal bed methane, water system, thermal electrical power generation, hydropower penstock, thermal electrical power generation,
dredging design, as well as other sectors.

This product generally makes use of smooth steel pipeline as the raw product. Some large diameter and special wall thickness items
make use of straight seam pipeline as the pipeline body. The body should be processed with screw strings at both ends. One end is
linked to the combining, while the other end is equipped with the string protector. Thread as well as coupling link are used between
the casings. In addition, the pipe body of various steel qualities ought to correspond to different couplings.
Production criterion: Spec 5CT

Certificate NO.: 5CT-0735
1. Steel quality
J55, K55, L80, N80, P110
2. External size
4 1/2″, 5″, 5 1/2″, 6 5/8″, 7″, 7 5/8″, 9 5/8″, 10 3/4″, 13 3/8″, 16″, 18 5/8″, 20″
3. Wall density
5.21 - 16.13 mm
4. Thread kind
SC( Short round string), LC( Long round thread), BC( Buttress string).
5. Length.
R1( 4.88-7.62 m), R2( 7.62-10.36 m), R3( 10.36-14.63 m).

Company Profile

 

Packaging & Shipping

FAQ

1.What kind of work does your company do? 

Our company is a professional manufacturer.We mainly produces stainless steel plate/pipe/coil/lead round bars,as well as galvanized plate/pipe/coil/lead wire/corrugated sheet,etc.

2.Do you provide free samples?
Yes, we can provide free sample for testing,buyer should bear all the shipping costs.

3.How long is your delivery time?
Generally it is 3-7 days if the goods are in stock or it is 7-15 days if the goods are not in stock, it is according to quantity.

4.How can we guarantee quality?
Always a pre-production sample before mass production;always final Inspection before shipment.

5.Why should you buy from us not from other suppliers?
Diversified products, direct supply from manufacturer.

6.What is your terms of payment ?
We accept T/T ,L/C ,Western union, paypal ,Credit Insurance Order etc.
The payment method can be negotiated by both parties according to the actual situation.

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