API 5ct k55 pipah casing baja seamless

API-5CT K55 oilfield casing pipe pisan sarupa J55, euweuh béda anu signifikan dina komposisi kimia.
jeung kakuatan ngahasilkeun, tapi kakuatan tensile pamungkas K55 leuwih luhur batan baja J55, K55 / J55 nyaéta 655MPa jeung
517MPa masing-masing.

K55 boga lalawanan kacapean mékanis jeung termal hadé tur résistansi retakan ti J55. Pikeun sumur produksi termal,
témbok beurat K55 casing luyu tinimbang J55 casing. Urut boga sipat lalawanan kacapean termal hadé
ti tukang.

Pamariksaan
Sipat fisik dipariksa sareng unggal panjangna diuji sacara hidrostatik, biasana ngan ukur 3.000 psi dina kaayaan polos (unthreaded).
Di handap ieu ogé dipariksa:
Diménsi
Beurat
Straightness
Panjangna
Bagian tina pamariksaan ieu nyaéta ngalayang sadayana panjang.
Sanajan sagala spésifikasi jeung nguji American Petroleum Institute (API), sababaraha defects tubing masih kapanggih sanggeus pangiriman; sahingga, sababaraha operator
ngalakukeun inspeksi salajengna.

Métode inspeksi:
Ukuran sareng pamariksaan permukaan
NDT sareng uji tekanan sareng sertifikasi pihak katilu
Hidrostatik
Tes ngalayang
Analisis fisik jeung kimia
Teu karasa jeung tekanan test.
Éléktromagnétik
Partikel magnét
Ultrasonik

Dimensi Jeung Beurat

Ukuran	Beurat	Diaméter luar		Ketebalan Tembok		Tungtung Rengse
						Kelas
		di	mm	di	mm	J55K55	L80	N80	C90T95	P110
4 1/2	9.50	4.500	114.3	0.205	5.21	PS	–	–	–	–
	10.50			0.224	5.69	PSB	–	–	–	–
	11.60			0.250	6.35	PSLB	PLB	PLB	PLB	PLB
	13.50			0.290	7.37	–	PLB	PLB	PLB	PLB
	15.10			0.337	9.56	–	–	–	–	PLB
5	11.50	5.00	127.00	0.220	5.59	PS	–	–	–	–
	13.00			0.253	6.43	PSLB	–	–	–	–
	15.00			0.296	7.52	PSLB	PLB	PLB	PLBE	PLB
	18.00			0.362	9.19	–	PLB	PLB	PLBE	PLB
	21.40			0.437	11.10	–	PLB	PLB	PLB	PLB
	23.20			0.478	12.14	–			PLB
	24.10			0.500	12.70	–			PLB
5 1/2	14.00	5.500	139.7	0.244	6.20	PS	–	–	–	–
	15.50			0.275	6.98	PSLB	–	–	–	–
	17.00			0.304	7.72	PSLB	PLB	PLB	PLBE	PLB
	20.00			0.361	9.17	–	PLB	PLB	PLBE	PLB
	23.00			0.415	10.54	–	PLB	PLB	PLBE	PLB
6 5/8	20.00	6.625	168.28	0.288	7.32	PSLB	–	–	–	–
	24.00			0.352	8.94	PSLB	PLB	PLB	PLBE	PLB
	28.00			0.417	10.59	–	PLB	PLB	PLBE	PLB
	32.00			0.475	12.06	–	PLB	PLB	PLBE	PLB
7	17.00	7.00	177.80	0.231	5.87	–	–	–	–	–
	20.00			0.272	6.91	PS	–	–	–	–
	23.00			0.317	8.05	PSLB	PLB	PLB	PLBE	–
	26.00			0.362	9.19	PSLB	PLB	PLB	PLBE	PLB
	29.00			0.408	10.36	–	PLB	PLB	PLBE	PLB
	32.00			0.453	11.51	–	PLB	PLB	PLBE	PLB
	35.00			0.498	12.65	–	PLB	PLB	PLBE	PLB
	38.00			0.540	13.72	–	PLB	PLB	PLBE	PLB
7 5/8	24.00	7.625	193.68	0.300	7.62	–	–	–	–	–
	26.40			0.328	8.33	PSLB	PLB	PLB	PLBE	PLB
	29.70			0.375	9.52	–	PLB	PLB	PLBE	PLB
	33.70			0.430	10.92	–	PLB	PLB	PLBE	PLB
	39.00			0.500	12.70	–	PLB	PLB	PLBE	PLB
	42.80			0.562	14.27	–	PLB	PLB	PLB	PLB
	45.30			0.595	15.11	–	PLB	PLB	PLB	PLB
	47.10			0.625	15.88	–	PLB	PLB	PLB	PLB
8 5/8	24.00	8.625	219.08	0.264	6.71	PS	–	–	–	–
	28.00			0.304	7.72	–	–	–	–	–
	32.00			0.352	8.94	PSLB	–	–	–	–
	36.00			0.400	10.16	PSLB	PLB	PLB	PLBE	PLB
	40.00			0.450	11.43	–	PLB	PLB	PLBE	PLB
	44.00			0.500	12.70	–	PLB	PLB	PLBE	PLB
	49.00			0.557	14.15	–	PLB	PLB	PLBE	PLB
9 5/8	32.30	9.625	244.48	0.312	7.92	–	–	–	–	–
	36.00			0.352	8.94	PSLB	–	–	–	–
	40.00			0.395	10.03	PSLB	PLB	PLB	PLBE	–
	43.50			0.435	11.05	–	PLB	PLB	PLBE	PLB
	47.00			0.472	11.99	–	PLB	PLB	PLBE	PLB
	53.50			0.545	13.84	–	PLB	PLB	PLBE	PLB
	58.40			0.595	15.11	–	PLB	PLB	PLB	PLB
10 3/4	32.75	10.75	273.05	0.279	7.09	–	–	–	–	–
	40.50			0.350	8.89	PSB	–	–	–	–
	15.50			0.400	10.16	PSB	–	–	–	–
	51.00			0.450	11.43	PSB	PSB	PSB	PSBE	PSB
	55.50			0.495	12.57	–	PSB	PSB	PSBE	PSB
	60.70			0.545	13.84	–	–	–	PSBE	PSB
	65.70			0.595	15.11	–	–	–	PSB	PSB
13 3/8	48.00	13.375	339.73	0.330	8.38	–	–	–	–	–
	54.50			0.380	9.65	PSB	–	–	–	–
	61.00			0.430	10.92	PSB	–	–	–	–
	68.00			0.480	12.19	PSB	PSB	PSB	PSB	PSB
	72.00			0.514	13.06	–	PSB	PSB	PSB	PSB
16	65.00	16	406.40	0.375	9.53	–	–	–	–	–
	75.00			0.438	11.13	PSB	–	–	–	–
	84.00			0.495	12.57	PSB	–	–	–	–
	109.00			0.656	16.66	P	P	P	–	P
18 5/8	87.50	18.625	473.08	0.435	11.05	PSB	–	–	–	–
20	94.00	20	508.00	0.438	11.13	PSLB	–	–	–	–
	106.50			0.500	12.70	PSLB	–	–	–	–
	133.00			0.635	16.13	PSLB	–	–	–	–

Sipat Kimia
Karbon	Silikon	Mangan	Fosfor	Walirang	Molybdenum	Nikel	Kromium	Tambaga	Lain
–	–	–	0.03	0.03	–	–	–	–	–

Sipat mékanis
Kakuatan ngahasilkeun		Kakuatan regangan			Elongation A5 mnt
MPa min	ksi min	MPa min	MPa min	ksi min	Persentase
		655	–	95	–