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In normal drilling operations, down hole drilling tools assembly was stuck sometimes due to many kinds reasons, and drilling jar is an effective tool for releasing stuck. QYZ type hydraulic drilling jar integrate upward jarring with downward jarring, It can start drilling jar by lifting and releasing drill stem when drilling tools were stuck, so it will generate up and down jarring force, and make sure drilling operation can go smoothly. This type drilling jar has some advantages like easy operation, stable property, safety and reliable, easy maintenance, etc..
Model | QYZ121 | QYZ165 | QYZ203 | QYZ241 | |
OD | nun (inch) | 121 (4-3/4) | 165 (6-1/2) | 203 (8) | 241 (9-1/2) |
ID | mm (inch) | 44.5 (1-3/4) | 57.2 (2-1/4) | 70 (2-3/4) | 76.2 (3) |
Tool Joint Connection | API | NC38 | NC50 | 6-5/8 REG | 7-5/8 REG |
Max. Upward Jarring Force | KN(lbf) | 350 (79,000) | 700(160,000) | 1000 (225,000) | 1250 (280,000) |
Max. Downward Jarring Force | KN(lbf) | 180 (40,000) | 350 (79,000) | 500 (112,000) | 650 (140,000) |
Max. Tensile Load | KN(lbf) | 1100 (247,000) | 2000 (450,000) | 2800 (630,000) | 3500 (780,000) |
Tensile Yield | KN(lbf) | 1950(438,000) | 3750 (843,000) | 6650 (1,495,000) | 9850(2,210,000) |
Torsional Limited | KNm (lbf.ft) | 15(11,000) | 30 (22,000) | 45 (33,000) | 75 (56,000) |
Torsional Yield | KNm (lbf.ft) | 27 (20,000) | 75 (55,000) | 90 (66,000) | 150 (112,000) |
Overall Length | mm (ft) | 6063 (19.9) | 6375 (20.9) | 6692 (22) | 6920 (22.7) |
0531-69959201
lqg18653457231
+86-18653457231
No 12111,Jingshi Road, Lixia District, Jinan City, Shandong Province. P.R. China
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