The API 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.

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产品名称
API casing tubing
产品简介
Seamless casing pipes, casing pipes, API 5CT pipe, casing steel pipe
产品图片
产品详情
The API 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: API 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).
Casing strings.
According to the function of well cementation and also the feature of casing, the item down right
into a well can be mostly divided into the surface area, intermediate, and also manufacturing
types.
1. Surface area casing: The setting depth varies from 10s of meters to hundreds of meters. It
depends upon different developments.
2. Intermediate casing: It is used for securing the facility development, so about make certain the
smooth running of boring. It can separate huge sector lost-circulation area, stressful water layer,
significant collapse strata, in addition to non-target layer of oil or gas, and so on

2. 3. Production casing: It is used to divide the gas, water, or oil layer of different stress from various
other strata, so regarding create the oil as well as gas stations. This guarantees the long-lasting
production as well as satisfies the extractionand also stimulation needs.
The API tubing is defined as a pipe that drops right into the wells for the production or injection
of fluids. In oil expedition, it drops hole to remove underground oil or gas, depending on
threaded link. It normally travels through the oil casing, which plays a role of protection and also
seclusion.
The tubing dimension in API standard is 1.05 “- 4 “. Our manufacturing array is 2 3/8 “- 4 1/2″
(60.32 mm – 114.3 mm). The pipe produced within this variety is used most regularly in oil and
also gas exploration.
1. Specification.
API SPEC 5CT.
2. Steel quality.
J55, K55, N80, L80, P110, etc.
3. Outdoors diameter.
2-3/8″, 2-7/8″, 3-1/2″, 4″, 4-1/2”.
4. Wall thickness.
4.24 mm – 16.0 mm.
5. Product type.
Non-upset tubing (NU), External distressed tubing (EU), Integraljoint tubing (IJ).
6. Length.
R1( 6.10-7.32 m), R2( 8.53-9.75 m), R3( 11.58-12.80 m).
7. String type.
Round thread( 8RD, 10RD).
The API casing is mostly made use of for the borehole wall surface assistance in the drilling and
also after the conclusion of a well, so as to make certain the smooth operating of the boring
process and the regular procedure of the entire oil well after well conclusion. It is mostly made
use of in petroleum, all-natural gas, coal bed methane, water supply, thermal electrical power
generation, hydropower penstock, thermal power generation, digging up engineering, as well as
various other markets.
Thread and also combining connection are made use of in between the casings. Manufacturing
casing: It is made use of to divide the oil, water, or gas layer of various stress from various other
strata, so as to form the oil and gas networks. The pipe created within this range is made use of
most frequently in oil as well as gas expedition.
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