輸油管的專有規格

Question

請問有人知道輸油管中長度的表示RANK 2 或是 RANK 3 是表示什麼嗎? 還有什麼是EUE, BTC, N80, J55, K55? 感謝回答

Answer 1

Range 1套管 是 長度 16-25 呎的套管
Range 2套管 是 長度 25-34 呎的套管
Range 3套管 是 長度 34-48 呎的套管

Range 1油管 是 長度 20-24 呎的油管
Range 2油管 是 長度 28-32 呎的油管

(R1, R2, R3) lengths of OCTG (Range 1 casing 16-25') (Range 2 casing 25-34') (Range 3 casing 34-48') (Range 1 tubing 20-24') (Range 2 tubing 28-32')

casing 是套管
tubing 是油管
詳情請看 http://www.hkex.com.hk/listedco/listconews/sehk/20061019/00568/CWP115_c.pdf (在第62頁末)

OCTG 產油國管類貨品 -- 依據 API 規範製造
Oil Country Tubular Goods - pipe made to API specifications

EUE
External upset ends forging of ends on (API) tubing and drill pipe to provide additional thickness for strengthening connections

BTC
Buttress threaded and coupled

Steels J55(0.04mass%Cr, ferrite-pearlite), N80(0.05mass%Cr, martensite) and L80(0.48mass%Cr, martensite)

Steel J55(min. yield strength: 55ksi[379MPa]) had the as-rolled, ferritic-pearlitic microstructure

Steels N80 and L80(min. yield strength: 80ksi [550MPa]) had the quenched and tempered, martensitic microstructure.

J55, N80, K55油管性質如下

API J55
Minimum Yield Strength: 55,000 psi
Maximum Yield Strength: 80,000 psi
Minimum Tensile Strength: 75,000 psi
Hardness Requirement: None

API K55
Minimum Yield Strength: 55,000 psi
Maximum Yield Strength: 80,000 psi
Minimum Tensile Strength: 95,000 psi
Hardness Requirement: None

API N80 (or N80 Q&T)
Minimum Yield Strength: 80,000 psi
Maximum Yield Strength: 110,000 psi
Minimum Tensile Strength: 100,000 psi
Hardness Requirement: None

應該不需要翻譯吧。

Answer 2

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