抽油桿說明
抽油桿是有桿抽油設(shè)備的重要部件。抽油桿通過接箍連接成抽油桿柱,上經(jīng)光桿連接抽油機或螺桿泵電機,下接抽油泵的柱塞或螺桿泵,其作用是將地面抽油機驢頭懸點的往復(fù)運動傳遞給井下抽油泵或是將螺桿泵電機的旋轉(zhuǎn)扭力傳遞給井下螺桿泵。
抽油桿按機械性能分為:C級、K級、D級、KD級、HL級、HY級抽油桿。
抽油桿規(guī)格型號表
抽油桿標(biāo)稱值 | Φ16(5/8") | Φ19(3/4") | Φ22(7/8") | Φ25(1") | Φ29(11/8") |
桿體直徑 | 15.88+0.18-0.36 | 19.05+0.20-0.41 | 22.23+0.20-0.41 | 25.40+0.23-0.46 | 28.58+0.25-0.51 |
(0.625+0.007-0.014) | (0.750+0.008-0.016) | (0.875+0.008-0.016) | (1.000+0.009-0.018) | (1.125+0.010-0.020) |
外螺紋臺肩 | 31.75+0.13-0.25 | 38.10+0.13-0.25 | 41.28+0.13-0.25 | 50.80+0.13-0.25 | 57.15+0.13-0.25 |
外徑 | (1.250+0.005-0.010) | (1.500+0.005-0.010) | (1.625+0.005-0.010) | (2.000+0.005-0.010) | (2.250+0.005-0.010) |
扳手方寬度 ±0.79(±0.031) | 22.23(0.875) | 25.4(1.000) | 25.4(1.000) | 33.34(1.3125) | 38.1(1.500) |
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扳手方長度 | 31.75(1.250) | 31.75(1.250) | 31.75(1.250) | 38.1(1.500) | 41.28(1.625) |
Lk API抽油桿長度、短節(jié)長度±50(±2.0)(從一端外螺紋臺肩面至另一端外螺紋臺肩面之間測量) | 508(20.0) | 508(20.0) | 508(20.0) | 508(20.0) | 508(20.0) |
1117.6(44.0) | 1117.6(44.0) | 1117.6(44.0) | 1117.6(44.0) | 1117.6(44.0) |
1727.2(68.0) | 1727.2(68.0) | 1727.2(68.0) | 1727.2(68.0) | 1727.2(68.0) |
2336.8(92.0) | 2336.8(92.0) | 2336.8(92.0) | 2336.8(92.0) | 2336.8(92.0) |
2946.4(116.0) | 2946.4(116.0) | 2946.4(116.0) | 2946.4(116.0) | 2946.4(116.0) |
3556.0(140.0) | 3556.0(140.0) | 3556.0(140.0) | 3556.0(140.0) | 3556.0(140.0) |
7518(296) | 7518(296) | 7518(296) | 7518(296) | 7518(296) |
9042(356) | 9042(356) | 9042(356) | 9042(356) | 9042(356) |
國內(nèi)抽油桿 長度±50 | 900,1400,1900, | 900,1400,1900, | 900,1400,1900, | 900,1400,1900, | 900,1400,1900, |
2400,2900,3400, | 2400,2900,3400, | 2400,2900,3400, | 2400,2900,3400, | 2400,2900,3400, |
7900,9900 | 7900,9900 | 7900,9900 | 7900,9900 | 7900,9900 |
鐓粗凸緣直徑 | 30.96+0.13-3.18 | 35.72+0.13-3.18 | 38.10+0.13-3.18 | 48.42+0.13-4.76 | 55.56+0.13-4.76 |
1.21875+0.005-0.125 | 1.40625+0.005-0.125 | 1.500+0.005-0.125 | 1.90625+0.005-0.1875 | 2.1875+0.005-0.1875 |
AR±3.2(±0.125) | 47.63(1.875) | 57.15(2.250) | 66.68(2.625) | 76.20(3.000) | 85.73(3.375) |
CR+1.59-0.40 (+0.0625-0.015625) | 3.18(0.125) | 3.18(0.125) | 4.76(0.1875) | 4.76(0.1875) | 4.76(0.1875) |
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鋼制抽油桿力學(xué)性能
鋼制抽油桿力學(xué)性能 |
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等級 | 最小屈服強度(0.2%殘余變形) | 最小抗拉強度 | 最大抗拉強度 | 伸長率200mm% | 斷面收縮率Z% | 表面硬度HRC | 心部硬度HB | 疲勞壽命 |
| psi | MPa | psi | MPa | psi | MPa | ≥1.0X106 |
K | 60000 | 414 | 90000 | 621 | 115000 | 793 | ≥13 | ≥60 |
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C | 60000 | 414 | 90000 | 621 | 115000 | 793 | ≥13 | ≥50 |
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D | 85000 | 586 | 115000 | 793 | 140000 | 965 | ≥10 | ≥50 |
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KD | 85000 | 590 | 115000 | 795 | 140000 | 965 | ≥10 | ≥50 |
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HL | 115000 | 795 | 140000 | 965 | 173339 | 1195 | ≥10 | ≥45 |
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HY | / | / | 140000 | 965 | 173339 | 1195 | / | / | ≥42 | ≥224 |
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EHL | / | / | 188500 | 1300 | 217500 | 1500 | / | / | ≥50 | ≥320 | ≥2.5X106 |
注:在下屈服強度無法測出時,應(yīng)考慮加工成標(biāo)準(zhǔn)試樣安裝引伸計進(jìn)行測量
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a 一般采用優(yōu)質(zhì)碳素鋼制造,經(jīng)有效熱處理可達(dá)到本表規(guī)定的力學(xué)性能。 b 一般采用個鉬鋼(但不限于此類鋼)制造,經(jīng)有效熱處理可達(dá)到本表規(guī)定的力學(xué)性能。 |
鋼制抽油桿常用化學(xué)成分表
常用抽油桿化學(xué)成分 |
AISI | C | Si | Mn | P | S | Cr | Ni | Mo | V | Cu | Al |
1541 | 0.36-0.45 | 0.15-0.35 | 1.35-1.65 | ≤0.04 | ≤0.04 | ≤0.3 | ≤0.35 | ≤0.06 | / | ≤0.35 | ≤0.035 |
4120 | 0.17-0.24 | 0.17-0.37 | 0.4-0.7 | ≤0.025 | ≤0.025 | 0.8-1.1 | ≤0.3 | 0.15-0.25 | / | ≤0.2 | / |
4130 | 0.26-0.33 | 0.17-0.37 | 0.4-0.7 | ≤0.025 | ≤0.025 | 0.8-1.1 | ≤0.3 | 0.15-0.25 | / | ≤0.2 | / |
4138 | 0.37-0.45 | 0.17-0.37 | 0.9-1.2 | ≤0.025 | ≤0.025 | 0.9-1.2 | ≤0.3 | 0.2-0.3 | / | ≤0.2 | / |
4138M | 0.37-0.45 | 0.17-0.37 | 0.9-1.2 | ≤0.025 | ≤0.025 | 0.9-1.2 | ≤0.3 | 0.2-0.3 | 0.04-0.09 | ≤0.2 | / |
4140 | 0.38-0.45 | 0.17-0.37 | 0.5-0.8 | ≤0.025 | ≤0.025 | 0.9-1.2 | ≤0.3 | 0.15-0.25 | / | ≤0.2 | / |
4142 | 0.38-0.45 | 0.17-0.37 | 0.5-0.8 | ≤0.025 | ≤0.025 | 0.9-1.2 | ≤0.3 | 0.15-0.25 | / | ≤0.2 | / |
3130 | 0.22-0.29 | 0.15-0.35 | 0.71-1.0 | ≤0.025 | ≤0.025 | 0.42-0.65 | 0.72-1.0 | 0.01-0.06 | / | ≤0.2 | / |
4320 | 0.18-0.42 | 0.15-0.35 | 0.8-1.0 | ≤0.025 | ≤0.025 | 0.7-0.9 | 1.15-1.5 | 0.2-0.3 | 0.04-0.09 | ≤0.35 | ≤0.035 |
4330 | 0.3-0.35 | 0.15-0.35 | 0.8-1.1 | ≤0.025 | ≤0.025 | 0.8-1.1 | 1.65-2.0 | 0.2-0.3 | 0.05-0.10 | ≤0.2 | / |
4621 | 0.18-0.23 | 0.17-0.37 | 0.7-0.9 | ≤0.025 | ≤0.025 | ≤0.35 | 1.65-2.0 | 0.2-0.3 | / | ≤0.2 | / |
4720 | 0.19-0.23 | 0.15-0.35 | 0.85-1.05 | ≤0.025 | ≤0.025 | 0.8-1.05 | 0.9-1.2 | 0.22-0.30 | 0.02-0.05 | 0.40-0.60 | / |
抽油桿重量表
抽油桿重量表 |
規(guī)格 | 5/8" | 3/4" | 7/8" | 1" | 1-1/8" | 1-1/4" | 1-1/2" |
kg/m | 1.68 | 2.4 | 3.2 | 4.2 | 5.3 | 6.4 | 9.4
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