HEILONGJIANG NORTH SHUANGJIA DRILLING TOOLS CO., LTD.: CASING

E-MAIL: irislea@sj-drilling.com;irislea@163.com

Outside Diameter:From 114.3MM To 508MM(4 1/2’’--20’’)

Wall-Thickness: 5.21MM-16.13MM(9.5PPF--133PPF)

Standard：API 5CT, GB, ISO11960, GOST

Steel Grade: H40, J55, K55, N80-1, N80-Q, L80-1,L80-9Cr, L80-13Cr, P110, Q125 etc

Type of thread: BTC, LTC, STC, XC etc

Length：Seamless Pipe, ERW

Type：Seamless Pipe

Casing pipe is most often used in underground construction projects to encase or protect utility lines from being damaged.

Once a well has been drilled, if it is to become a production well, the well must undergo completion. While drilling a well cuts through the rock formations and allows drilling engineers to reach the reservoir below, the raw sides of the well cannot support themselves. Similar to the bones of your spine protecting the spinal cord, casing is tubing that is set inside the drilled well to protect and support the wellstream.

Outside diameter of casing pipe is from 4-1/2” to 20”(114.3mm to 508mm), wall thickness is from 9.5PPF to 133PPF(5.21mm to 16.13mm), max OD we can do is 20.5”(520mm). Based on the standard of API 5CT, ISO11960, GOST, steel grade is from H40, J55, K55, N80-1, N80-Q,L80-1, L80-9Cr, L80-13Cr, P110 etc. As you know the length range is R1 (4.88-7.52M), R2 (7.52-10.36M), R3(10.36-14.88M), R3 is used most, and if the casing pipes were shipped by container, then the R3 will be 10.36-11.9M; if all casing was transferred by train, the max length will be 12.5M.

BTC, STC, LTC thread type could be provided also the XC and premiums thread type can be finished by us.