1.Sucker pas nrig centralizer yog ib yam ntawm cov cuab yeej downhole uas yog siv tau zoo los tiv thaiv kev puas tsuaj, tshwj xeeb tshaj yog tsim rau cov twj zoo thiab kev taw qhia zoo uas saum toj kawg nkaus ntawm tus pas nrig nruab nrab taw tes, nyob rau hauv nruab nrab taw tes ntawm tus pas nqus pas, lub cev pas nrig nrog nylon centralizer ua haujlwm zoo dua.
Cov pas nqus dej txav mus rau hauv lub raj, vim qhov elastic deformation ntawm tus pas nrig, pas nrig thiab roj raj phab ntsa yog yooj yim ua rau kev sib txhuam, ti ua rau cov pas nrig nqus tau yooj yim, nqus pas nrig centralizer muaj zog yooj, kov nrog lub raj. phab ntsa tuaj yeem txo qhov kev sib txhuam ntawm cov pas nrig thiab lub raj, thiab tuaj yeem ua kom lub neej ntau lawm ntawm cov twj tso kua mis. Lub centralizer txuas nrog tus pas nrig, sab nraud txoj kab uas hla ntawm centralizer yog loj dua coupling txheej txoj kab uas hla, yog li ntawd yuav ua rau lub luag hauj lwm ntawm centralize. Lub hauv paus yog ua los ntawm cov khoom siv muaj zog hnav-tiv taus, thiab kov nrog lub raj kom txo tau qhov kev puas tsuaj kom ua tiav lub hom phiaj ntawm kev tiv thaiv kev puas tsuaj.
2. PAB 66
Yam khoom | Specification | Kev Xav Tau | PAB 66 |
1 | Cov khoom kuaj | Smooth thiab tsis muaj kev puas tsuaj | du |
2 | Khoov zog Mpa | ≧103 | 242.46 ib |
3 | Notch Impact Strength | ≧13 | 27.66 Nws |
4 | Kev sib txhuam coefficient μ | ≦0.018 | 0.017 3 |
5 | Thaum tshav kub kub distortion kub ℃ | ≧180 | 220.85 Nws |
6 | Hnav Volume Poob g/cm³ | ≧0.073 | 0.0049 ib |
7 | Qhov ceev kg / cm³ | 1.3-1.4 ib | 1.4 |
8 | Tensile MPa | / | 123.05 Nws |
9 | Compactness | / | 1500 |