Centralized sucker rod is a sort of sucker rod attached several centralizers (three pieces generally) on the sucker rod body. Its grades include Grade C, K, D, KD, HL and HY. The centralizer is made from reinforced compound nylon. It has beneficial properties of higher hardness, lighter weight and better abrasion resistance.
Centralized Sucker rods help to keep rods centered in the tubing, to avoid the friction between sucker rods and tubings in use. They are used for slant hole, bent hole and directional hole wells.
Sizes and Parameters of Centralizer
|
Size |
Centralizer OD (mm) |
Centralizer Length (mm) |
Tubing ID in(mm) |
Service Temperature ℃ |
|
FZ46×15/16QG |
46 |
80 130 150 |
2(50) |
75 ~ 140 |
|
FZ46×1-1/16QG |
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|
FZ58×15/16QG |
58 |
2-1/2(62) |
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|
FZ58×1-1/16QG |
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|
FZ58×1-3/16QG |
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|
FZ70×15/16QG |
70 |
2-7/8(73) |
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|
FZ70×1-1/16QG |
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|
FZ70×1-3/16QG |
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|
FZ70×1-3/8QG |
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|
FZ70×1-9/16QG |