Advanced thermo treatment tools, these kinds of as network warmth remedy oven, multi-use thermo therapy oven, and many others. Our experts and engineers have 23 a long time of Knowledge in the Bearing Industry. Our company pays specific interest to customers’ requirements, listening to the distinct demands of every single buyer and guaranteeing total gratification.
Spiral Drill collar
The key purpose of spiral drill collar: It is to prevent drilling tools from stress differential block throughout drilling, the spiral groove enables the mEPTTflow freely about the drill collar to harmony force preventing stress block, so efficiently steer clear of bit sticking from differential force. Spiral collar can also lessen the get in touch with location among the wall and tubular physique, so as to steer clear of from sticking phenomenon of drill string.
Solution Description
Solution Description
API seven Oil Nicely Drilling Spiral Non-EPTic Drill Collar
one) StXiHu (West EPT) Dis.Hu (West EPT) Dis.rd: API Spec 7
two) API and ISO licensed
3) Specification: 3-one/8”, three-one/2”, four-1/8”, 4 quot, four-three/4”, 5”, six quot 6-1/four quot, 6-3/4 quot, seven quot, 7-1/four quot, 7-three/four quot, 8 quot, 8-one/4 quot, nine quot, 9-one/two quot, 9-3/four quot, 10 quot, eleven quot
four) EPT: Alloy Steel
5) Description
A drill collar is a device utilized in the drilling of oil wells for weighting the drill bit, enabling it to drill through rock. It is a bar manufactured of sound steel, both basic carbon steel or a non-magnetic steel alloy, drilled lengthwise to permit the passage of drilling fluids. A drill collar forms the lowest component of a drill string, which encompasses all the elements of a down-gap procedure from the surface to the rock bit.
6) Composition
These gadgets are normally 31 toes (about nine.45 m) EPTT and threaded at the two ends, male at one finish and feminine at the other, to enable several drill collars to be joined over the bit assembly.
The amount of drill collars attached to a drill string will count on the materials composition of the strata at the drill site and the very likely depth of the effectively. A relatively shallow well with significantly less dense geologic structure by way of which the little bit must move will need much less drill collars than a deep shaft by means of dense materials.
Generally, drill collars will be steady in size but could range in diameter, and their exterior configuration could be slick or spiral. The outside the house diameter could fluctuate from about 3-1/2 inches (8.89 cm) to 11 inches (27.9 cm) and increased. The reference to slick or spiral outer configuration refers to the machining of the outdoors surface area of the collar.
7) Attribute of Non-mechanical Drill Collar
EPTs of Non-magnetic drill collars are created from chrome manganese reduced carbon austenitic alloy, which has subsequent characteristic:
a. The chemical composition need to be controlled strictly during the refining and forging process.
b. With excellent reduced EPTic permeability, large power of mechanical qualities and outstXiHu (West EPT) Dis.Hu (West EPT) Dis. resistant to stress corrosion cracking and no inclination to galling.
eight) Parameter
| Kind | OD(mm) | ID(mm) | L(m) plusmn152.4mm d |
DF(mm) plusmn0.4 |
| NC23-31 | seventy nine.4 | 31.eight | nine.14 | seventy six.two |
| NC26-35 | 88.9 | 38.1 | 9.14 | 82.9 |
| NC31-forty one | 104.eight | 50.8 | 9.14or9.forty five | one hundred.four |
| NC35-47 | 120.six | fifty.8 | nine.14or9.forty five | 114.7 |
| NC38-fifty | 127 | 57.2 | nine.14or9.forty five | 121 |
| NC44-60 | 152.four | fifty seven.2 | nine.14or9.45 | 144.5 |
| NC44-sixty | 152.four | 71.4 | 9.14or9.forty five | 144.5 |
| NC46-62 | 158.eight | fifty seven.2 | nine.14or9.45 | 149.two |
| NC46-sixty two | 158.8 | 71.4 | 9.14or9.forty five | a hundred and fifty |
| NC46-sixty five | one hundred sixty five.one | 57.two | 9.14or9.forty five | 154.8 |
| NC46-65 | 165.one | 71.4 | 9.14or9.forty five | 154.8 |
| NC46-67 | 171.4 | fifty seven.two | nine.14or9.45 | 159.5 |
| NC50-70 | 177.eight | fifty seven.2 | 9.14or9.45 | 164.7 |
| NC50-70 | 177.8 | 71.four | nine.14or9.45 | 164.seven |
| NC50-seventy two | 184.2 | 71.4 | 9.14or9.45 | 169.five |
| NC56-seventy seven | 196.eight | 71.4 | nine.14or9.45 | 185.three |
| NC56-eighty | 203.2 | seventy one.four | nine.14or9.45 | 190.1 |
| 6-5/8REG | 209.6 | seventy one.four | 9.14or9.forty five | 195.six |
| NC61-ninety | 228.6 | 71.4 | nine.14or9.45 | 212.seven |
| seven-5/8REG | 241.3 | 76.2 | nine.14or9.45 | 223.eight |
| NC70-97 | 247.6 | seventy six.2 | nine.14or9.forty five | 232.6 |
| NC70-a hundred | 254 | 76.two | nine.14or9.forty five | 237.3 |
| eight-5/8REG | 279.4 | 76.2 | nine.14or9.forty five | 266.7 |
| NC50-67 | 171.5 | 71.4 | 9.14or9.forty five | 159.5 |
9) EPT Property
| OD Dimension | Generate Strength sigma0.two Mpa(psi) |
Tensile Power sigmab Mpa(psi) |
EEPTTation delta4% |
Reduction of region % |
Reduction of location % |
| three-1/8~six-three/four | ge758 -a hundred and ten,000 |
ge827 -a hundred and twenty,000 |
ge18 | fifty | ge50 |
| 7~10 | ge689 -one hundred,000 |
ge758 -110,000 |
ge20 |
Why Select Us
1) Encounter in casting for over 15 many years and served buyers all close to the globe.
2) StXiHu (West EPT) Dis.Hu (West EPT) Dis.rd material in accordance to complex drawing
three)Secure quality
four) On-time delivery
five) Competitive value and very good support
six) Positive buyer comments from domestic and intercontinental market
seven) Intercontinental EPTd-degree gear such as CNC, numerical lathes, furnance, welding
products, CMM and detect amptesting equipment we utilized to make certain our product’s high quality.
8) OEM service, your need is our pursued.
nine) ISO9001:2008 and TS16949 good quality manage
10) StXiHu (West EPT) Dis.Hu (West EPT) Dis.rd: ASTM BS DIN and so on
FAQ
1. What are the primary materials of your merchandise?
We are focused on casting and processing of gray iron and ductile iron items.
2. What is your MOQ?
We will prepare creation based on your drawings and provide your items as per your specifications. We will do our best to meet your needs.
3. What is your primary gear?
Our casting tools is introduced from Japan. They largely incEPTT: FBO vehicle molding lines, sand strains, cleaning strains, vertical and horizontal machining cEPTTrs and CNC machining cEPTTr.
4. Do you make the molds by oneself?
We are faXiHu (West EPT) Dis.Hu (West EPT) Dis.tated with EPTd mold generating gear and CNC processing machining cEPTTr. For that reason, we can make molds independently.
5. What are your positive aspects?
1) Professional personnel
two) 24 a long time of casting expertise
3) Demanding quality handle system
4) On-time shipping charge is above 98%
