API 5CT ning po'lat darajasi
H40
K55
R95
P110
J55
N80
L80
Q125
API 5CT QO'LQA VA TUBINGLARNING O'lchami va o'lchamlari
- API 5CT quvurining spetsifikatsiyasi va hajmi
| DN | O. D. | Og'irligi | W. T. | Qayta ishlashni tugatish | |||||||||
| -Buzilmagan ulanish-ipi | Buzilgan ulanish ipi- | Chelik darajasi | |||||||||||
| ichida | mm | lb./ft. | lb./ft. | ichida | mm | H40 | J55 | L80 | N80 | C90 | T95 | P110 | |
| 2 3/8 | 2.38 | 60.3 | 4 | – | 0.167 | 4.24 | PU | PN | PN | PN | PN | PN | – |
| 4.6 | 4.7 | 0.19 | 4.83 | PNU | PNU | PNU | PNU | PNU | PNU | PNU | |||
| 5.8 | 5.95 | 0.254 | 6.45 | – | – | PNU | PNU | PNU | PNU | PNU | |||
| 6.6 | – | 0.295 | 7.49 | – | – | P | – | P | P | – | |||
| 7.35 | 7.45 | 0.336 | 8.53 | – | – | PU | – | PU | PU | – | |||
| 2 7/8 | 2.88 | 73 | 6.4 | 6.5 | 0.217 | 5.51 | PNU | PNU | – | – | – | – | – |
| 7.8 | 7.9 | 0.276 | 7.01 | – | – | – | – | – | – | – | |||
| 8.6 | 8.7 | 0.308 | 7.82 | – | – | PLB | PLB | PLBE | – | PLB | |||
| 9.35 | 9.45 | 0.34 | 8.64 | – | – | PLB | PLB | PLBE | – | PLB | |||
| 10.5 | – | 0.392 | 9.96 | – | – | PLB | PLB | PLB | – | PLB | |||
| 11.5 | – | 0.44 | 11.18 | – | – | – | – | PLB | – | ||||
| 3 1/2 | 3.5 | 88.9 | 7.7 | – | 0.216 | 5.49 | PN | PN | PN | PN | PN | PN | – |
| 9.2 | 9.3 | 0.254 | 6.45 | PNU | PNU | PNU | PNU | PNU | PNU | PNU | |||
| 10.2 | – | 0.289 | 7.34 | PN | PN | PN | PN | PN | PN | – | |||
| 12.7 | 12.95 | 0.375 | 9.52 | – | – | PNU | PNU | PNU | PNU | PNU | |||
| 14.3 | – | 0.43 | 10.92 | – | – | P | – | P | P | – | |||
| 15.5 | – | 0.476 | 12.09 | – | – | P | – | P | P | – | |||
| 17 | – | 0.53 | 13.46 | – | – | P | – | P | P | – | |||
| 4 | 4 | 102 | 9.5 | – | 0.226 | 5.74 | PN | PN | PN | PN | PN | PN | – |
| – | 11 | 0.262 | 6.65 | PU | PU | PU | PU | PU | PU | – | |||
| 13.2 | – | 0.33 | 8.38 | – | – | P | – | P | P | – | |||
| 16.1 | – | 0.415 | 10.54 | – | – | P | – | P | P | – | |||
| 18.9 | – | 0.5 | 12.7 | – | – | P | – | P | P | – | |||
| 22.2 | – | 0.61 | 15.49 | – | – | P | – | P | P | – | |||
| 4 1/2 | 4.5 | 114 | 12.6 | 12.75 | 0.271 | 6.88 | PNU | PNU | PNU | PNU | PNU | PNU | – |
| 15.2 | – | 0.337 | 8.56 | – | – | P | – | P | P | – | |||
| 17 | – | 0.38 | 9.65 | – | – | P | – | P | P | – | |||
| 18.9 | – | 0.43 | 10.92 | – | – | P | – | P | P | PLB | |||
| 21.5 | – | 0.5 | 12.7 | – | – | P | – | P | P | PLB | |||
| 23.7 | – | 0.56 | 14.22 | – | – | P | – | P | P | PLB | |||
| 26.1 | – | 0.63 | 16 | – | – | P | – | P | P | PLB | |||
| P--To‘g‘ri;N-- Buzilmagan bog‘lovchi-ip;U-- O‘rnatilgan bog‘lovchi-ip; L - integral | |||||||||||||
- API 5CT korpusining spetsifikatsiyasi va hajmi
| DN | O. D. | Og'irligi | W. T. | Ishlov berishni tugatish shakli | ||||||||
| Chelik darajasi | ||||||||||||
| ichida | mm | lb/ft | kg/m | ichida | mm | H40 | J55 | L80 | N80 | C90 | P110 | |
| K55 | T95 | |||||||||||
| 4 1/2 | 4.500 | 114.3 | 9.5 | 14.14 | 0.205 | 5.21 | PS | PS | – | – | – | – |
| 10.5 | 15.63 | 0.224 | 5.69 | – | PSB | – | – | – | – | |||
| 11.6 | 17.26 | 0.250 | 6.35 | – | PSLB | PLB | PLB | PLB | PLB | |||
| 13.5 | 20.09 | 0.290 | 7.37 | – | – | PLB | PLB | PLB | PLB | |||
| 15.1 | 22.47 | 0.337 | 9.56 | – | – | – | – | – | PLB | |||
| 5 | 5.000 | 127 | 11.5 | 17.11 | 0.220 | 5.59 | – | PS | – | – | – | – |
| 13 | 19.35 | 0.253 | 6.43 | – | PSLB | – | – | – | – | |||
| 15 | 22.32 | 0.296 | 7.52 | – | PSLB | PLB | PLB | PLBE | PLB | |||
| 18 | 26.79 | 0.362 | 9.19 | – | – | PLB | PLB | PLBE | PLB | |||
| 21.4 | 31.85 | 0.437 | 11.1 | – | – | PLB | PLB | PLB | PLB | |||
| 23.2 | 34.53 | 0.478 | 12.14 | – | – | – | – | PLB | – | |||
| 24.1 | 35.86 | 0.500 | 12.7 | – | – | – | – | PLB | – | |||
| 5 1/2 | 5.500 | 139.7 | 14 | 20.83 | 0.244 | 6.2 | PS | PS | – | – | – | – |
| 15.5 | 23.07 | 0.275 | 6.98 | – | PSLB | – | – | – | – | |||
| 17 | 25.3 | 0.304 | 7.72 | – | PSLB | PLB | PLB | PLBE | PLB | |||
| 20 | 29.76 | 0.361 | 9.17 | – | – | PLB | PLB | PLBE | PLB | |||
| 23 | 34.23 | 0.415 | 10.54 | – | – | PLB | PLB | PLBE | PLB | |||
| 26.8 | 39.88 | 0.500 | 12.7 | – | – | – | – | – | – | |||
| 29.7 | 44.2 | 0.562 | 14.27 | – | – | – | – | – | – | |||
| 32.6 | 48.51 | 0.625 | 15.88 | – | – | – | – | – | – | |||
| 35.3 | 52.53 | 0.687 | 17.45 | – | – | – | – | – | – | |||
| 38 | 56.55 | 0.750 | 19.05 | – | – | – | – | – | – | |||
| 40.5 | 60.27 | 0.812 | 20.62 | – | – | – | – | – | – | |||
| 43.1 | 64.14 | 0.875 | 22.22 | – | – | – | – | – | – | |||
| 6 5/8 | 6.625 | 168.28 | 20 | 29.76 | 0.288 | 7.32 | PS | PSLB | – | – | – | – |
| 24 | 35.72 | 0.352 | 8.94 | – | PSLB | PLB | PLB | PLBE | PLB | |||
| 28 | 41.67 | 0.417 | 10.59 | – | – | PLB | PLB | PLBE | PLB | |||
| 32 | 47.62 | 0.475 | 12.06 | – | – | PLB | PLB | PLBE | PLB | |||
| 7 | 7.000 | 177.8 | 17 | 25.3 | 0.231 | 5.87 | PS | – | – | – | – | – |
| 20 | 29.76 | 0.272 | 6.91 | PS | PS | – | – | – | – | |||
| 23 | 34.23 | 0.317 | 8.05 | – | PSLB | PLB | PLB | PLBE | – | |||
| 26 | 38.69 | 0.362 | 9.19 | – | PSLB | PLB | PLB | PLBE | PLB | |||
| 29 | 43.16 | 0.408 | 10.36 | – | – | PLB | PLB | PLBE | PLB | |||
| 32 | 47.62 | 0.453 | 11.51 | – | – | PLB | PLB | PLBE | PLB | |||
| 35 | 52.09 | 0.498 | 12.65 | – | – | PLB | PLB | PLBE | PLB | |||
| 38 | 56.55 | 0.540 | 13.72 | – | – | PLB | PLB | PLBE | PLB | |||
| 42.7 | 63.54 | 0.625 | 15.88 | – | – | – | – | – | – | |||
| 46.4 | 69.05 | 0.687 | 17.45 | – | – | – | – | – | – | |||
| 50.1 | 74.56 | 0.750 | 19.05 | – | – | – | – | – | – | |||
| 53.6 | 79.77 | 0.812 | 20.62 | – | – | – | – | – | – | |||
| 57.1 | 84.97 | 0.875 | 22.22 | – | – | – | – | – | – | |||
| 7 5/8 | 7.625 | 193.68 | 24 | 35.72 | 0.300 | 7.62 | PS | – | – | – | – | – |
| 26.4 | 39.29 | 0.328 | 8.33 | – | PSLB | PLB | PLB | PLBE | PLB | |||
| 29.7 | 44.2 | 0.375 | 9.52 | – | – | PLB | PLB | PLBE | PLB | |||
| 33.7 | 50.15 | 0.430 | 10.92 | – | – | PLB | PLB | PLBE | PLB | |||
| 39 | 58.05 | 0.500 | 12.7 | – | – | PLB | PLB | PLBE | PLB | |||
| 42.8 | 63.69 | 0.562 | 14.27 | – | – | PLB | PLB | PLB | PLB | |||
| 45.3 | 67.41 | 0.595 | 15.11 | – | – | PLB | PLB | PLB | PLB | |||
| 47.1 | 70.09 | 0.625 | 15.88 | – | – | PLB | PLB | PLB | PLB | |||
| 51.2 | 76.19 | 0.687 | 17.45 | – | – | – | – | – | – | |||
| 55.3 | 80.3 | 0.750 | 19.05 | – | – | – | – | – | – | |||
| 8 5/8 | 8.625 | 219.08 | 24 | 35.72 | 0.264 | 6.71 | – | PS | – | – | – | – |
| 28 | 41.62 | 0.304 | 7.72 | PS | – | – | – | – | – | |||
| 32 | 47.62 | 0.352 | 8.94 | PS | PSLB | – | – | – | – | |||
| 36 | 53.57 | 0.400 | 10.16 | – | PSLB | PLB | PLB | PLBE | PLB | |||
| 40 | 59.53 | 0.450 | 11.43 | – | – | PLB | PLB | PLBE | PLB | |||
| 44 | 65.48 | 0.500 | 12.7 | – | – | PLB | PLB | PLBE | PLB | |||
| 49 | 72.92 | 0.557 | 14.15 | – | – | PLB | PLB | PLBE | PLB | |||
| 9 5/8 | 9.625 | 244.48 | 32.3 | 48.07 | 0.312 | 7.92 | PS | – | – | – | – | – |
| 36 | 53.57 | 0.352 | 8.94 | PS | PSLB | – | – | – | – | |||
| 40 | 59.53 | 0.395 | 10.03 | – | PSLB | PLB | PLB | PLBE | – | |||
| 43.5 | 64.73 | 0.435 | 11.05 | – | – | PLB | PLB | PLBE | PLB | |||
| 47 | 69.94 | 0.472 | 11.99 | – | – | PLB | PLB | PLBE | PLB | |||
| 53.5 | 79.62 | 0.545 | 13.84 | – | – | PLB | PLB | PLBE | PLB | |||
| 58.4 | 86.91 | 0.595 | 15.11 | – | – | PLB | PLB | PLB | PLB | |||
| 59.4 | 88.4 | 0.609 | 15.47 | – | – | – | – | – | – | |||
| 64.9 | 96.58 | 0.672 | 17.07 | – | – | – | – | – | – | |||
| 70.3 | 104.62 | 0.734 | 18.64 | – | – | – | – | – | – | |||
| 75.6 | 112.5 | 0.797 | 20.24 | – | – | – | – | – | – | |||
| 10 3/4 | 10.750 | 273.05 | 32.75 | 48.74 | 0.279 | 7.09 | PS | – | – | – | – | – |
| 40.5 | 60.27 | 0.350 | 8.89 | PS | PSB | – | – | – | – | |||
| 15.5 | 67.71 | 0.400 | 10.16 | – | PSB | – | – | – | – | |||
| 51 | 75.9 | 0.450 | 11.43 | – | PSB | PSB | PSB | PSBE | PSB | |||
| 55.5 | 82.59 | 0.495 | 12.57 | – | – | PSB | PSB | PSBE | PSB | |||
| 60.7 | 90.33 | 0.545 | 13.84 | – | – | – | – | PSBE | PSB | |||
| 65.7 | 97.77 | 0.595 | 15.11 | – | – | – | – | PSB | PSB | |||
| 73.2 | 108.93 | 0.672 | 17.07 | – | – | – | – | – | – | |||
| 79.2 | 117.86 | 0.734 | 18.64 | – | – | – | – | – | – | |||
| 85.3 | 126.94 | 0.797 | 20.24 | – | – | – | – | – | – | |||
| 11 3/4 | 11.750 | 42 | 62.5 | 0.333 | 8.46 | PS | – | – | – | – | – | |
| 47 | 69.94 | 0.375 | 20.24 | – | – | – | – | – | – | |||
| 54 | 80.36 | 0.435 | 8.46 | – | – | – | – | – | – | |||
| 60 | 89.29 | 0.489 | 9.53 | – | – | – | – | – | – | |||
| 65 | 96.73 | 0.534 | 11.05 | – | – | – | – | – | – | |||
| 71 | 105.66 | 0.582 | 14.42 | – | – | – | – | – | – | |||
| 13 3/8 | 13.375 | 339.73 | 48 | 71.43 | 0.330 | 8.38 | PS | – | – | – | – | – |
| 54.5 | 81.1 | 0.380 | 9.65 | – | PSB | – | – | – | – | |||
| 61 | 90.78 | 0.430 | 10.92 | – | PSB | – | – | – | – | |||
| 68 | 101.19 | 0.480 | 12.19 | – | PSB | PSB | PSB | PSB | PSB | |||
| 72 | 107.15 | 0.514 | 13.06 | – | – | PSB | PSB | PSB | PSB | |||
| 16 | 16.000 | 406.4 | 65 | 96.73 | 0.375 | 9.53 | PS | – | – | – | – | – |
| 75 | 111.61 | 0.438 | 11.13 | – | PSB | – | – | – | – | |||
| 84 | 125.01 | 0.495 | 12.57 | – | PSB | – | – | – | – | |||
| 109 | 162.21 | 0.656 | 16.66 | – | P | P | P | – | P | |||
| 18 5/8 | 18.625 | 473.08 | 87.5 | 130.21 | 0.435 | 11.05 | PS | PSB | – | – | – | – |
| 20 | 20.000 | 508 | 94 | 139.89 | 0.438 | 11.13 | PSL | PSLB | – | – | – | – |
| 106.5 | 158.49 | 0.500 | 12.7 | – | PSLB | – | – | – | – | |||
| 133 | 197.93 | 0.635 | 16.13 | – | PSLB | – | – | – | – | |||
| P--Oddiy;S--Qisqa-ip;L--Uzoq-ip;B--Koʻngilli ip;E--Ekstremal ip | ||||||||||||
API 5CT KIMYOVIY TARKIBI (%)
API 5CT MEXANIK XUSUSIYATLARI
API 5CT O'lchamli og'ish
| Elementlar | Ruxsat etilgan og'ish | |
| Chiqish diametri | D 101,60 mm dan kam yoki unga teng | ± 0,79 mm |
| D 114,30 mm dan katta yoki unga teng | + 1.0%, -0.5% | |
| Devor qalinligi | -12.50% | |
| Massa (bitta uzunlik) | +6.5%, -3.5% | |
API 5CT UZUNLIK diapazoni
| Uzunlik | |||
| Element | Qo'llash doirasi 1 | Qo'llash doirasi 2 | Qo'llash doirasi 3 |
| Quvurlar | 6.10-7.32m | 8.53-9.75m | – |
| Koson | 4.88-7.62m | 7.62-10.36m | 10.36-14.63m |
API 5CT TUBING VA GAPLARNI TEST VA TEKSHIRISh
- Gidrostatik sinov
Gidrostatik sinov po'lat quvurlarni ishlab chiqarishda muhim sifat nazorati chorasidir. Gidrostatik sinovning maqsadi tikuv payvandlari va quvur tanasi kerakli ichki suv bosimiga oqmasdan bardosh bera olishini tekshirishdir. Sinovni o'tkazish uchun suv bosim ostida va quvurga AOK qilinadi. Suv bosimi belgilangan darajaga yetgandan so'ng, quvur oqish uchun to'liq tekshiruvdan o'tkaziladi. Aniqlangan qochqinlar tuzatiladi va gidrostatik sinov quvur tekshiruvdan o'tmaguncha takrorlanadi. Bu jarayon tayyor mahsulot suv yoki boshqa suyuqliklarni yuqori bosim ostida oqib chiqmasdan xavfsiz tashishini ta'minlaydi.
- Burilish sinovi
API 5CT trubkasi va korpus trubkasini ishlab chiqarish jarayonida payvand choki sifatini ta'minlash uchun egilish sinovi o'tkaziladi. Ushbu sinov po'lat quvur namunasini olish va uni bükme kuchiga ta'sir qilishni o'z ichiga oladi. Sinov natijalari shundan so'ng payvand chokida yoriqlar mavjudligini aniqlash uchun baholanadi. Agar yoriqlar topilmasa, quvur maqbul sifatga ega deb hisoblanadi. Biroq, agar yoriqlar topilsa, quvur rad etiladi va uni ta'mirlash yoki almashtirish kerak. Bükme sinovi ishlab chiqarish jarayonining muhim qismidir, chunki u yakuniy mahsulot yuqori sifatli bo'lishini va maqsadga muvofiq ishlashini ta'minlashga yordam beradi.
- Yassilash testi
Yassilash sinovlari odatda API 5CT spetsifikatsiyasiga muvofiq ishlab chiqarilgan po'lat quvurlarning sifat nazorati sinovi paytida amalga oshiriladi. Yassilash testi namuna trubasining uzunlamasına deformatsiyaga chidamliligini (ya'ni, yoriqlar o'sishi) va stress ostida shaklini saqlab turish qobiliyatini baholash uchun ishlatiladi. Sinov avval quvur namunasining bir uchiga halqani payvand qilish orqali amalga oshiriladi. Keyin namunaning ikkinchi uchi trubaning butun uzunligini bo'ylama o'qi bo'ylab siqib chiqaradigan jigga joylashtiriladi. Kerakli siqilishga erishilgandan so'ng, jig chiqariladi va namuna tekshirish uchun chiqariladi. Sinov paytida yuzaga kelgan har qanday yoriqlar yoki deformatsiyalar hujjatlashtiriladi va tahlil qilinadi. Yassilash testining natijalari quvur sifatini va uning turli ilovalarda foydalanishga yaroqliligini baholash uchun ishlatilishi mumkin.
- CVN ta'siri testi
Quvurlar va korpus quvurlari ishlab chiqarishga kelganda, zarba sinovi muhim sifat nazorati chorasidir. Charpy testi sifatida ham tanilgan ushbu test materialning zarbaga bardosh berish qobiliyatini baholash uchun ishlatiladi. Sinov namunani bolg'a bilan urish va so'rilgan energiya miqdorini o'lchashni o'z ichiga oladi. Natijalar materialning talab qilinadigan spetsifikatsiyaga mos kelishini aniqlash uchun standart bilan taqqoslanadi. Ta'sirni sinovdan o'tkazishda uchta asosiy hudud sinovdan o'tkaziladi: quvur tanasi, payvand choki va issiqlik ta'sir qiladigan hudud-. Ushbu testning ahamiyatini tushunib, ishlab chiqaruvchilar o'zlarining po'lat quvurlari mustahkamlik va chidamlilik uchun talab qilinadigan standartlarga javob berishini ta'minlashi mumkin.
API 5CT QUVURLARNI TUGASHTIRISH
- Yassi uchi / tekis uchi
To'g'ri uchi, shuningdek, tekis uchi yoki kvadrat kesimi sifatida ham tanilgan, po'lat quvurning bir turi bo'lib, u burchakli yoki tishli uchi emas, balki tekis uchi bo'ladi. Oddiy so'nggi quvurlar katta diametrli quvurlarda ko'proq uchraydi va odatda yuqori bosim ostida suyuqliklarni tashish uchun ishlatiladi. Oddiy so'nggi trubaning afzalligi shundaki, uni payvandlash yoki boshqa turdagi quvurlarga ulash osonroq. Shu bilan birga, tekis so'nggi trubka shamol yoki to'lqinlar kabi tashqi kuchlarga kamroq bardosh beradi va ta'sirlardan shikastlanishga ko'proq moyil bo'ladi. Natijada, oddiy so'nggi trubka ko'pincha ko'miladigan yoki boshqa elementlardan himoyalanadigan ilovalarda qo'llaniladi.
- Tishli uchi
Koson - burg'ulash qudug'ining qudug'ini qoplash uchun ishlatiladigan po'lat quvur. Quduqning qulashini oldini olish va foydalanilayotgan uskunani himoya qilish uchun korpusdan foydalanish muhimdir. Quduqqa suv, gaz va neft kirmasligi uchun korpus ham ishlatiladi. Qopqoq trubkasidagi tishli uchi vint bilan ulanish uchun ishlatiladi. Ushbu turdagi ulanish tishli birikma sifatida tanilgan. Ushbu ulanishni amalga oshirish uchun korpusli ulash moslamasi ishlatiladi. Ulagich trubaning uchiga vidalanadi va keyin ikkita quvur bir-biriga vint bilan ulanadi.
- Dumaloq burun
Qopqoq trubkasidagi yumaloq burun oddiygina tishli ulanish bo'lib, u tekis emas, balki yumaloq uchiga ega bo'lish uchun ishlangan. Ushbu turdagi ulanish ko'pincha bo'sh joy cheklanganda, masalan, tor burchaklarda yoki boshqa-olish qiyin{2}}joylarda qo'llaniladi. Bundan tashqari, yumaloq burunlar atrofdagi narsalarga kamroq yopishadi, bu esa ularni tirbandlik yuqori-bo‘lgan joylarda ishlatish uchun ideal qiladi. Garchi ular an'anaviy tishli ulanishlarga qaraganda qimmatroq bo'lsa-da, yumaloq burunlarning yuqori xavfsizligi va chidamliligi ularni sarmoyaga arziydi.
API 5CT OCTG NIMA?
Neft mamlakati quvurli mahsulotlar (OCTG) - neft va gaz quduqlarini burg'ilash, tugatish va ishlab chiqarishda ishlatiladigan po'lat quvur mahsulotlari oilasi. Va API 5CT mahsulotlar guruhi uchun standartdir. OCTG korpusi va trubkasi quduqni qurish jarayonida muhim elementlardir, chunki ular quduq teshigini qo'llab-quvvatlaydi va himoya qiladi. Avval korpus o'rnatiladi, so'ngra quvur o'rnatiladi. Koson odatda po'latdan yoki rezervuarning yuqori bosimi va haroratiga bardosh bera oladigan boshqa kuchli materiallardan tayyorlanadi. Quvurlar ham po'latdan yasalgan, lekin u yupqaroq devor bilan qoplangan va korpus ichida olib yurilgan. OCTG mahsulotlari burg'ulash quduqlari turiga asoslangan maxsus spetsifikatsiyalarga javob berish uchun ishlab chiqariladi. Misol uchun, nordon xizmat ko'rsatish korpusi vodorod sulfidi gazidan korroziyaga qarshi turishi kerak. Chuqur suv qobig'i katta chuqurlikdagi yuqori bosimlarga bardosh bera olishi kerak. Oxir oqibat, OCTG mahsulotlari neft va gazni burg'ulash operatsiyalarining xavfsizligi va samaradorligini ta'minlashda muhim rol o'ynaydi.
API 5CT QO'LQI VA TUBING O'RSIDAGI FARQ QANDAY?
API 5CT korpusi - bu quduqni ifloslanishdan himoya qilish uchun quduqqa o'rnatilgan quvur. Qopqoq quduq trubasini barqarorlashtirish va uni xavfsiz saqlash uchun ham ishlatiladi. Burg'ulash va koson operatsiyalari navbatma-navbat amalga oshiriladi, burg'ulash chizig'i oldindan belgilangan vaqt oralig'ida chiqariladi. API 5CT quvurlari neftni quduq chuqurligidan yer yuzasiga olib chiqish uchun ishlatiladi. Neft va gaz ba'zan o'z-o'zidan{6}}yer yuzasiga ko'tarilishi mumkin; ammo bu suyuqliklarni yuzaga chiqarish uchun odatda nasoslar talab qilinadi. Quvurlar odatda korpusga qaraganda kichikroq diametrga ega. Quvurlarning asosiy maqsadi neftni quduqdan tashqi joyga tashishdir.
