The casing is used in oil and gas industry as a part of casing string in the drilling of oil and gas wells. A string is used for borehole casing, pay horizon isolation in production, and is constructed from casing tubes by consecutive make-up.
Casing and Coupling. Size range is 4.1/2” (114.3 mm) to 13.5/8” (273 mm) under GOST 632, API Spec 5СТ. Grades are J55, K55, M65, N80, L80, C90, C95, T95, P110 under API, or Д, Е, К, Л, М under GOST standard.
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Pipe Mill of Pavlodar Subsidiary of KSP Steel LLP |
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Casing and coupling: |
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GOST 632-80 |
Grades: Д, К, Е, Л, М, Р, T |
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Specification for Casing and Casing Coupling
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Type of threaded connection: ОТТМ |
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Design: А, Б |
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Pipe size, mm |
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Nominal Diameter |
Wall Thickness, mm |
Length, m |
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Ø114 |
5.2-10.2 |
8.0-12.0 |
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Ø 127 |
6.0-10.2 |
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Ø 140 |
6.2-10.5 |
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Ø 146 |
6.5-10.7 |
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Ø 168 |
7.3-12.1 |
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Ø 178 |
5.9-15 |
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Ø 194 |
7.6-15.1 |
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Ø 219 |
6.7-14.2 |
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Ø 245 |
7.9-15.9 |
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Ø 273 |
7.1-16.5 |
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