API 5CT ni kiwango kilichowekwa na Taasisi ya Petroli ya Marekani (API) ambayo inabainisha mahitaji ya kiufundi ya casing na neli inayotumika katika visima vya mafuta na gesi. Daraja la J55, K55, N80, na P110 ni baadhi ya darasa zinazotumiwa zaidi za mabomba ya chuma katika sekta hiyo. Kila daraja lina sifa na sifa zake za kipekee zinazoifanya kufaa kwa matumizi mahususi.
Jumla ya urefu wa masafa, ikijumuisha tofauti inayoruhusiwa, max a
4.88 hadi 7.62 1.83
7.62 hadi 10.36
10.36 hadi 14.63 1.83
1.52
TUBING NA CASING INATUMIWA KAMA TUBING
(PE/T na C/SF)
Jumla ya urefu wa masafa, ikijumuisha tofauti inayoruhusiwa, max a
6.10 hadi 7.32 b
8.53 hadi 9.75 c
11.58 hadi 12.80 d
VIUNGO MUHIMU VYA MIFUKO (pamoja na IJ/PE
0.61
0.61
0.61
na IJ/SF
)
Jumla ya urefu wa masafa, ikijumuisha tofauti inayoruhusiwa, max a
6.10 hadi 7.92 e
8.53 hadi 10.36
11.58 hadi 13.72 0.61
0.61
0.61
PUP JOINTS
Urefu: 0.61; 0.91; 1.22; 1.83; 2.44; 3.05 na 3.66 e
Uvumilivu: 0.076
a Tofauti ya urefu hutumika kwa usafirishaji wa gari la reli hadi mahali pa kutumika na haitumiki kuagiza bidhaa za chini ya kilo 18,144 za bomba.
b Kwa makubaliano kati ya mnunuzi na mtengenezaji, urefu wa juu zaidi unaweza kuongezwa hadi 8.57 m.
c Kwa makubaliano kati ya mnunuzi na mtengenezaji, urefu wa juu zaidi unaweza kuongezwa hadi 10.76 m.
d Kwa makubaliano kati ya mnunuzi na mtengenezaji, urefu wa juu zaidi unaweza kuongezwa hadi 17.72 m.0.61 m kiungio cha pup kinaweza kutolewa hadi urefu wa 0.91 m kwa makubaliano kati ya mnunuzi na mtengenezaji, na urefu tofauti na ulioorodheshwa unaweza kutolewa kwa makubaliano kati ya mnunuzi na mtengenezaji.
Daraja la N80 ni bomba la nguvu zaidi na nguvu ya chini ya mavuno ya psi 80,000. Inatumika kwa kawaida katika visima vya kina cha kati na hutoa upinzani bora kwa kutu na kupasuka. Daraja la P110 ni bomba la nguvu zaidi katika vipimo vya API 5CT, na nguvu ya chini ya mavuno ya psi 110,000. Inatumika katika visima virefu na vya shinikizo la juu ambapo uimara na uimara ni muhimu zaidi.Mojawapo ya faida kuu za API 5CT mfuko usio na mshono ni uwezo wake wa kutoa muhuri unaotegemewa na usiovuja. Ubunifu usio na mshono huondoa hitaji la kulehemu, ambayo inaweza kuwa hatua dhaifu katika bomba. Hii inahakikisha kwamba casing inaweza kuhimili shinikizo la juu na halijoto inayopatikana wakati wa utendakazi wa kuchimba visima bila hatari yoyote ya kushindwa.Aidha, mfuko wa API 5CT usio na mshono hutengenezwa kwa kutumia chuma cha ubora wa juu ambacho hufanyiwa majaribio na ukaguzi mkali ili kuhakikisha uadilifu wake. Hii ni pamoja na ukaguzi wa muundo wa kemikali, sifa za kiufundi na usahihi wa vipimo. Hatua hizi kali za udhibiti wa ubora zinahakikisha kwamba kabati inakidhi viwango vya sekta na inaweza kufanya kazi kwa kutegemewa katika hali ngumu ya visima vya mafuta na gesi. , api 5ct casing isiyo na mshono pia inatoa
The J55 grade is a low-cost option that offers good strength and toughness. It is commonly used in shallow wells and has a minimum yield strength of 55,000 psi. The K55 grade, on the other hand, has similar properties to J55 but with a higher minimum yield strength of 55,000 psi. This makes it suitable for deeper wells and more demanding drilling conditions.The N80 grade is a higher strength pipe with a minimum yield strength of 80,000 psi. It is commonly used in medium-depth wells and offers excellent resistance to corrosion and cracking. The P110 grade is the highest strength pipe in the API 5CT specification, with a minimum yield strength of 110,000 psi. It is used in deep and high-pressure wells where strength and durability are paramount.One of the key advantages of API 5CT seamless casing is its ability to provide a reliable and leak-free Seal. The seamless design eliminates the need for welding, which can be a potential weak point in the pipe. This ensures that the casing can withstand the high pressures and temperatures encountered during drilling operations without any risk of failure.Furthermore, API 5CT seamless casing is manufactured using high-quality steel that undergoes rigorous testing and inspection to ensure its integrity. This includes checks for chemical composition, mechanical properties, and dimensional accuracy. These stringent quality control measures guarantee that the casing meets the industry standards and can perform reliably in the demanding conditions of Oil and Gas wells.Sealing Ring Structure Hot-Deformed Seamless Steel Pipes Cold Rolled Oil well Casing PipeIn addition to its mechanical properties, API 5CT seamless casing also offers
The N80 grade is a higher strength pipe with a minimum yield strength of 80,000 psi. It is commonly used in medium-depth wells and offers excellent resistance to corrosion and cracking. The P110 grade is the highest strength pipe in the API 5CT specification, with a minimum yield strength of 110,000 psi. It is used in deep and high-pressure wells where strength and durability are paramount.One of the key advantages of API 5CT seamless casing is its ability to provide a reliable and leak-free Seal. The seamless design eliminates the need for welding, which can be a potential weak point in the pipe. This ensures that the casing can withstand the high pressures and temperatures encountered during drilling operations without any risk of failure.Furthermore, API 5CT seamless casing is manufactured using high-quality steel that undergoes rigorous testing and inspection to ensure its integrity. This includes checks for chemical composition, mechanical properties, and dimensional accuracy. These stringent quality control measures guarantee that the casing meets the industry standards and can perform reliably in the demanding conditions of Oil and Gas wells.Sealing Ring Structure Hot-Deformed Seamless Steel Pipes Cold Rolled Oil well Casing PipeIn addition to its mechanical properties, API 5CT seamless casing also offers
