There are four kinds of stabilizers, namely, replaceable sleeve stabilizer, integral spiral stabilizer, integral prism stabilizer, and three-roller stabilizer. Each kind has two types: string type and near-bit type. The body is made of high-strength alloy steel, and the wear-resistant layer adopts bead-welded hard alloy with good stability and high abrasion resistance.
TECHNICAL PARAMETER
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稳定器两端外径 O.D. at two ends mm(in) |
外柱型稳定器 String type stabilizers |
井底型稳定器 Near-bit type stabilizers |
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上 端 Upper end |
下 端 Lower end |
上 端 Upper end |
下 端 Lower end |
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121 (4 3/8) |
NC35 (内螺纹 Internal thread) |
NC35 (外螺纹 Internal thread) |
NC35 (内螺纹 Internal thread) |
3 1/2REG(内螺纹 Internal thread) |
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159 (6 1/4) |
NC44 (内螺纹 Internal thread) |
NC44 (外螺纹 Internal thread) |
NC44 (内螺纹 Internal thread) |
4 1/2 REG (内螺纹 Internal thread) |
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NC46 (内螺纹 Internal thread) |
NC46 (外螺纹 Internal thread) |
NC46 (内螺纹 Internal thread) |
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178(7) |
NC50 (内螺纹 Internal thread) |
NC50 (外螺纹 Internal thread) |
NC50 (内螺纹 Internal thread) |
4 1/2REG (内螺纹 Internal thread) |
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203(8) |
NC56 (内螺纹 Internal thread) |
NC56 (外螺纹 Internal thread) |
NC56 (内螺纹 Internal thread) |
6 5/8REG (内螺纹 Internal thread) |
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229(9) |
NC61 (内螺纹 Internal thread) |
NC61 (外螺纹 Internal thread) |
NC61 (内螺纹 Internal thread) |
7 5/8REG (内螺纹 Internal thread) |
