Cov qauv thiab txoj cai ua haujlwm ntawm tus pas nrig sucker yog dab tsi?

Lub pas nrig sucker yog ib feem tseem ceeb ntawm lub twj tso roj. Lub luag haujlwm ntawm lub pas nrig sucker yog txuas lub sab saud ntawm lub twj tso roj thiab lub qis ntawm lub twj tso roj kom xa hluav taws xob, raws li pom hauv Daim Duab. Lub pas nrig sucker yog tsim los ntawm ntau lub pas nrig sucker txuas nrog los ntawm kev sib txuas.

Tus pas nrig sucker nws tus kheej yog ib tug pas nrig khov kho ua los ntawm cov hlau puag ncig, nrog cov taub hau tuab ntawm ob sab kawg, nrog cov xov txuas thiab ib ntu plaub fab rau lub wrench. Cov xov sab nraud ntawm ob tug pas nrig sucker txuas nrog lub coupling. Cov couplings feem ntau yog siv los txuas cov pas nrig sucker uas muaj tib lub cheeb tsam, thiab cov couplings txo qis yog siv los txuas cov pas nrig sucker uas muaj ntau lub cheeb tsam.

Tam sim no, cov pas nrig sucker raug muab faib ua ob hom los ntawm cov khoom siv tsim khoom, ib qho yog carbon steel sucker rod, thiab lwm qhov yog alloy steel sucker rod. Carbon steel sucker rods feem ntau yog ua los ntawm No. 40 lossis 45 zoo carbon steel; alloy steel sucker rods yog ua los ntawm 20CrMo thiab 20NiMo hlau. Sucker rods feem ntau tawg ze ntawm lub qhov dej thiab xov.

Cov hlua sucker muaj cov pas nrig ci ntsa iab thiab cov pas nrig sucker downhole. Cov pas nrig sucker sab saum toj ntawm cov hlua sucker hu ua cov pas nrig ci ntsa iab. Cov pas nrig ci ntsa iab koom tes nrog lub thawv kaw lub qhov dej kom kaw lub qhov dej.

Cov pas nrig hlau nqus dej ib txwm muaj cov thev naus laus zis yooj yim tsim khoom, pheej yig, txoj kab uas hla me me, thiab ntau yam kev siv. Lawv tus nqi siv rau ntau dua 90% ntawm cov qhov dej twj tso kua mis. Feem ntau, cov pas nrig hlau nqus dej ib txwm muaj plaub qib: qib C, qib D, qib K thiab qib H.

Chav Kawm C sucker pas nrig: siv rau hauv cov qhov dej ntiav thiab cov xwm txheej thauj khoom me me.

Chav Kawm D cov pas nrig nqus: Cov pas nrig nqus hlau siv rau hauv cov qhov roj nruab nrab thiab hnyav.

Chav Kawm K sucker rod: Steel sucker rod siv rau hauv cov qhov roj corrosive lub teeb thiab nruab nrab load.

Chav Kawm K thiab D sucker rods: Cov hlau sucker rods nrog kev tiv thaiv corrosion ntawm K-class sucker rods thiab cov khoom siv kho tshuab ntawm D-class sucker rods.

Chav Kawm H sucker rod: Steel sucker rod siv rau hauv cov qhov roj hnyav thiab hnyav heev.

Qib A thiab B yog cov yas fiber reinforced (iav fiber reinforced yas) sucker rods: cov khoom siv tseem ceeb ntawm lub cev sucker rod yog fiberglass reinforced yas, thiab muaj qhov sib koom ua ke hlau ntsia rau ntawm ob qho kawg ntawm lub cev sucker rod. Cov qauv fiberglass sucker rod yog tsim los ntawm lub cev fiberglass rod thiab cov hlau sib koom ua ke nrog cov xov sab nraud ntawm lub sucker rod ntawm ob qho kawg. Nws yog lub teeb yuag, tiv taus corrosion, tuaj yeem ua tiav kev mus ncig ntau dhau, thiab tuaj yeem siv rau hauv cov chaw nqus roj nruab nrab kom ua tiav kev nqus dej tob.