Item Description
Item Description
Drill Collar
LFM Drill Collar
There are distinct types of drill collars, such as spherical drill collar, spiral drill collar, CZPT -magnetic drill collar, square drill collar and so on. Regular drill collar is the circular cross area, the middle has a drinking water hole, the wall thickness is more substantial, the nozzle is smaller, the fat of for each unit length is higher than the size of drill pipe virtually 4- 5 times. The bulk of drill collar is thread processing directly on the pipe human body , but some of them also use the replaced joint.
Functions
(1) Eccentric-weight drill collar is an effective anti-deviation drilling tool, with higher drill strain utilised in indirect locations, rectifying indirect as well.
(2) When drilling directional wells eccentric-weight drill collar is an effective instrument to lessen indirect or straighten the effectively gap employing substantial drilling stress.
(3) Eccentric-fat drill collar has the benefits of basic structure, convenient use, related right to frequent drill collar without centralizers, significantly hassle-free for sinking in, fishing and milling functions.
(4) Eccentric-excess weight drill collar operates downhole properly, danger of leakage or bit freezing tough to seem.
(5) Pay considerably consideration to avoid mud balling and stop result of anti-deviation.
| Drill collar (spiral drill collar) | |||||||
| specification | NC23-31~NC70-one hundred | ||||||
| All sequence of API specs | |||||||
| government standard | API Spec 7-1 API Spec 7-two | ||||||
| Size | OD | Id | Lmm | Shoulder chamfering diameter | Bending energy ratio of the reference | ||
| mm | In | mm | in | ||||
| NC31-41(2-7/8IF) | 104.8 | 2004/1/8 | fifty.8 | 2 | 9150 | one hundred.four | two.43:one |
| NC35-forty seven | a hundred and twenty.seven | 2004/3/4 | fifty.8 | two | 9150 | 114.7 | 2.58:one |
| NC38-fifty(3-1/2IF) | 127 | 5 | fifty seven.2 | 2002/1/4 | 9150 | 121 | two.38:1 |
| NC44-sixty | 152.four | 6 | 57.2 | 2002/1/4 | 9150/9450 | one hundred forty four.five | two.forty nine:1 |
| NC44-sixty | 152.4 | six | 71.four | two-thirteen/16 | 9150/9450 | one hundred forty four.5 | two.eighty four:1 |
| NC44-62 | 158.eight | 2006/1/four | fifty seven.two | 2002/1/four | 9150/9450 | 149.two | 2.ninety one:one |
| NC46-62(4IF) | 158.eight | 2006/1/4 | 71.4 | two-thirteen/16 | 9150/9450 | a hundred and fifty | 2.63:one |
| NC46-65(4IF) | 165.1 | 2006/1/2 | 57.2 | 2002/1/four | 9150/9450 | 154.eight | two.76:1 |
| NC46-sixty five(4IF) | 165.one | 2006/1/two | 71.4 | 2-thirteen/16 | 9150/9450 | 154.8 | 3.05:one |
| NC46-sixty seven(4IF) | 171.four | 2006/3/four | 57.two | 2002/1/four | 9150/9450 | 159.five | 3.eighteen:one |
| NC50-sixty seven(4-1/2IF) | 171.four | 2006/3/4 | 71.4 | 2-13/sixteen | 9150/9450 | 159.5 | two.37:one |
| NC50-70(4-1/2IF) | 177.8 | seven | 57.two | 2002/1/four | 9150/9450 | 164.seven | two.54:1 |
| NC50-70(4-1/2IF) | 177.eight | 7 | seventy one.four | 2-13/16 | 9150/9450 | 164.7 | two.seventy three:one |
| NC50-72(4-1/2IF) | 184.two | 2007/1/4 | 71.four | 2-thirteen/16 | 9150/9450 | 169.five | 3.12:1 |
| NC56-seventy seven | 196.8 | 2007/3/4 | 71.4 | 2-thirteen/sixteen | 9150/9450 | 185.three | 2.70:1 |
| NC56-80 | 203.two | eight | 71.4 | 2-13/16 | 9150/9450 | 190.1 | 3.02:1 |
| six-5/8REG | 209.6 | 2008/1/4 | 71.4 | 2-thirteen/sixteen | 9150/9450 | 195.seven | 2.ninety three:1 |
| NC61-ninety | 228.six | nine | 71.4 | two-13/16 | 9150/9450 | 212.seven | three.17:one |
| 7-5/8REG | 241.3 | 2009/1/two | 76.2 | three | 9150/9450 | 223.8 | 2.81:one |
| NC70-ninety seven | 247.six | 2009/3/4 | 76.two | 3 | 9150/9450 | 232.six | 2.fifty seven:1 |
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FAQ
Q1: What is your packing?
A: Normal packing.
Q2: What’s your shipping?
A: Generally, about thirty-45 times.
Q3: What are the shipping methods?
A: CZPT shipment to the port near from you Air shipment to the shipment near from your company Door to door service by international express.
This autumn: What about the payment options?
A: In basic, we accept T/T.
Q5: When can I get the price?
A: We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price,please call us or tell us in your email so that we will detail with your inquiry priority.
