Home > Products > OCTG(oil country tubular goods) > drill string component/oil and gas industry drill collar for oilfield well drilling API7-1 4145H MOD/drilling tools
drill string component/oil and gas industry drill collar for oilfield well drilling API7-1 4145H MOD/drilling tools
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Product Details
Brand Name | APS | Model Number | 3-1/8~11" | |
Type | Drill Collar | Machine Type | Drilling Tool | |
Certification | API | Material | Other, Low-alloy steel | |
Processing Type | Forging | Use | Well Drilling |
Product Description
Packaging & Delivery
Packaging Details: | As customer's request |
Delivery Detail: | Within 30 days |
API Drill Collar
Specifications
1. AISI 4145H alloy steel,ect 2. API Spec. 3. OD:79.4mm-279.4mm 4. Timely delivery 5.Factory directly
Spiral drill collar
♦ The Petroleum drilling tools mainly include Drill collars, Spiral drill collars, Non magnetic drill collars, Short drill collars, Drill tool stabilizers, Non magnetic drill tool stabilizers, Integral heavy weight drill pipes, etc.
♦ The details of Spiral drill collar as follows,
1. Material: AISI 4145H Alloy steel, Non magnetic steel, etc.
2. Shape: It is a kind of drill collar which adds three dextrogyrate spiral groove on the outer circle of ordinary drill collar when processing, and the purpose is to reduce the area of contact and friction with the well wall, which can effectively prevent the pressure sticking.
3. Use: It is mainly used between the drill head and the drill pipe, so that it can make the drill head work reposefully and keep right trace by providing the pressure and weight for drill head.
4. Standard: API Spec 7-1 or SY/T5144 Standard.
5. Inspection&Test: When producing, traceability are maintained from the receipt of raw material to completion of final products, and serial numbers are die-stamped on each workpiece body. During each manufacturing process, inspection and test are performed.
6.Specification:
Connections | OD | ID | Length mm | Bevel Diameter Df mm | Reference Bending Strength Ratio | ||
mm | in | mm | in | ||||
NC23-31 | 79.4 | 3 1/8 | 31.8 | 1 1/4 | 9150 | 76.2 | 2.57:1 |
NC26-35 | 88.9 | 3 1/2 | 38.1 | 1 1/2 | 9150 | 82.9 | 2.42:1 |
NC31-41 | 104.8 | 4 1/8 | 50.8 | 2 | 9150 or 9450 | 100.4 | 2.43:1 |
NC35-47 | 120.7 | 4 3/4 | 50.8 | 2 | 915 or 9450 | 114.7 | 2.58:1 |
NC38-50 | 127.0 | 5 | 57.2 | 2 1/4 | 9150 or 9450 | 121.0 | 2.38:1 |
NC44-60 | 152.4 | 6 | 57.2 | 2 1/4 | 9150 or 9450 | 144.5 | 2.49:1 |
NC44-60 | 152.4 | 6 | 71.4 | 2 13/16 | 9150 or 9450 | 144.5 | 2.84:1 |
NC44-62 | 158.8 | 6 1/4 | 57.2 | 2 1/4 | 9150 or 9450 | 149.2 | 2.91:1 |
NC46-62 | 158.8 | 6 1/4 | 71.4 | 2 13/16 | 9150 or 9450 | 150.0 | 2.63:1 |
NC46-65 | 165.1 | 6 1/2 | 57.2 | 2 1/4 | 9150 or 9450 | 154.8 | 2.76:1 |
NC46-65 | 165.1 | 6 1/2 | 71.4 | 2 13/16 | 9150 or 9450 | 154.8 | 3.05:1 |
NC46-67 | 171.4 | 6 3/4 | 57.2 | 2 1/4 | 9150 or 9450 | 159.5 | 3.18:1 |
NC50-67 | 171.4 | 6 3/4 | 71.4 | 2 13/16 | 9150 or 9450 | 159.5 | 2.37:1 |
NC50-70 | 177.8 | 7 | 57.2 | 2 1/4 | 9150 or 9450 | 164.7 | 2.54:1 |
NC50-70 | 177.8 | 7 | 71.4 | 2 13/16 | 9150 or 9450 | 164.7 | 2.73:1 |
NC50-72 | 184.2 | 7 1/4 | 71.4 | 2 13/16 | 9150 or 9450 | 169.5 | 3.12:1 |
NC56-77 | 196.8 | 7 3/4 | 71.4 | 2 13/16 | 9150 or 9450 | 185.3 | 2.70:1 |
NC56-80 | 203.2 | 8 | 71.4 | 2 13/16 | 9150 or 9450 | 190.1 | 3.02:1 |
6 5/8REG | 209.6 | 8 1/4 | 71.4 | 2 13/16 | 9150 or 9450 | 195.7 | 2.93:1 |
NC61-90 | 228.6 | 9 | 71.4 | 2 13/16 | 9150 or 9450 | 212.7 | 3.17:1 |
7 5/8REG | 241.3 | 9 1/2 | 76.2 | 3 | 9150 or 9450 | 223.8 | 2.81:1 |
NC70-97 | 247.6 | 9 3/4 | 76.2 | 3 | 9150 or 9450 | 232.6 | 2.57:1 |
NC70-100 | 254.0 | 10 | 76.2 | 3 | 9150 or 9450 | 237.3 | 2.81:1 |
8 5/8REG | 279.4 | 11 | 76.2 | 3 | 9150 or 9450 | 266.7 | 2.84:1 |
7.Spiral Groove Size:
OD | Depth of cut A mm | Pitch ±25.4 mm | Depth of cut B mm | |
mm | in | |||
98.4 | 3 7/8 | 4.0±0.79 | 914 |
|
101.6~111.1 | 4~4 3/8 | 4.8±0.79 | 914 | |
114.3~130.2 | 4 1/2~5 1/8 | 5.6±0.79 | 965 | |
133.4~146.1 | 5 1/4~5 3/4 | 6.4±0.79 | 1067 | |
149.2~161.9 | 5 7/8~6 3/8 | 7.1±1.59 | 1067 | |
165.1~177.8 | 6 1/2~7 | 7.9±1.59 | 1168 | |
181.0~200.0 | 7 1/8~7 7/8 | 8.7±1.59 | 1626 | 5.6±0.79 |
203.2~225.4 | 8~8 7/8 | 9.5±1.59 | 1727 | 6.4±0.79 |
228.6~250.8 | 9~9 7/8 | 10.3±2.37 | 1829 | 7.1±1.59 |
254.0~276.2 | 10~10 7/8 | 11.1±2.37 | 1930 | 7.9±1.59 |
279.4 | 11 | 11.9±2.37 | 2037 | 8.7±1.59 |
Contact Us
- Shaanxi APS Machinery Equipment Co., Ltd.
- Contact nameKaren yan Chat Now
- Phone86-029-63350698
- AddressRoom 11911, Shuzishenghuo Building A, Keji 5th Road, High-Tech Zone
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