Heavy Weight Spiral Drill Collar Oil Drill Pipe Grade S135

Spiral Drill collar
 
The main operate of spiral drill collar: It is to stop drilling instruments from force differential block during drilling, the spiral groove permits the mud flow freely about the drill collar to balance force preventing pressure block, so efficiently stay away from little bit sticking from differential pressure. Spiral collar can also minimize the speak to region between the wall and tubular body, so as to keep away from from sticking phenomenon of drill string.

Item Description

Item Description
API seven Oil Well Drilling Spiral Non-Magnetic Drill Collar
1) Normal: API Spec seven
two) API and ISO accredited
3) Specification: 3-1/8”, three-one/2”, four-one/8”, four”, four-3/4”, 5”, six” 6-1/four”, 6-3/four”, 7″, 7-one/four”, seven-three/four”, eight”, eight-one/four”, nine”, 9-1/two”, 9-three/four”, 10″, 11″
four) Materials: Alloy Metal
five) Description
A drill collar is a unit utilised in the drilling of oil wells for weighting the drill little bit, enabling it to drill through rock. It is a bar produced of reliable metal, possibly plain carbon metal or a non-magnetic metal alloy, drilled lengthwise to allow the passage of drilling fluids. A drill collar forms the cheapest component of a drill string, which encompasses all the components of a down-hole process from the surface to the rock little bit.
6) Framework
These products are normally 31 ft (about 9.forty five m) long and threaded at the two ends, male at one particular end and female at the other, to enable several drill collars to be joined over the little bit assembly.
The number of drill collars attached to a drill string will rely on the substance composition of the strata at the drill web site and the very likely depth of the effectively. A comparatively shallow effectively with much less dense geologic framework by means of which the little bit should move will need fewer drill collars than a deep shaft by means of dense materials.
Normally, drill collars will be consistent in length but might vary in diameter, and their outside configuration might be slick or spiral. The outside the house diameter could fluctuate from about three-1/2 inches (eight.89 cm) to eleven inches (27.9 cm) and increased. The reference to slick or spiral outer configuration refers to the machining of the outside surface of the collar.
seven) Attribute of Non-mechanical Drill Collar
Materials of Non-magnetic drill collars are made from chrome manganese lower carbon austenitic alloy, which has following characteristic:
a. The chemical composition ought to be managed strictly throughout the refining and forging method.
b. With superb reduce Magnetic permeability, high toughness of mechanical qualities and exceptional resistant to anxiety corrosion cracking and no inclination to galling.
eight) Parameter

Sort OD(mm) ID(mm) L(m)
±152.4mm
d
DF(mm)
±0.four
NC23-31 79.4 31.eight 9.14 seventy six.two
NC26-35 88.nine 38.one nine.14 eighty two.9
NC31-41 104.8 fifty.eight 9.14or9.45 100.4
NC35-47 one hundred twenty.six fifty.8 nine.14or9.45 114.seven
NC38-50 127 57.2 9.14or9.forty five 121
NC44-60 152.4 57.two 9.14or9.forty five one hundred forty four.5
NC44-60 152.4 seventy one.4 9.14or9.45 one hundred forty four.five
NC46-sixty two 158.eight fifty seven.two 9.14or9.45 149.two
NC46-62 158.eight 71.4 nine.14or9.45 one hundred fifty
NC46-65 165.one 57.two nine.14or9.45 154.8
NC46-sixty five 165.1 71.4 9.14or9.45 154.eight
NC46-67 171.4 fifty seven.2 9.14or9.45 159.5
NC50-70 177.8 fifty seven.two 9.14or9.45 164.7
NC50-70 177.8 seventy one.4 9.14or9.forty five 164.7
NC50-seventy two 184.two 71.four nine.14or9.45 169.5
NC56-seventy seven 196.eight 71.four nine.14or9.45 185.three
NC56-80 203.2 71.4 9.14or9.forty five 190.1
six-five/8REG 209.six seventy one.four nine.14or9.45 195.six
NC61-90 228.six seventy one.4 nine.14or9.forty five 212.7
7-five/8REG 241.three seventy six.two 9.14or9.forty five 223.8
NC70-97 247.6 76.two nine.14or9.forty five 232.six
NC70-one hundred 254 76.2 9.14or9.forty five 237.3
8-five/8REG 279.four 76.2 9.14or9.45 266.7
NC50-67 171.five seventy one.4 nine.14or9.45 159.five

nine) Mechanical Residence

OD Size Yield Strength
σ0.two
Mpa(psi)
Tensile Power σb
Mpa(psi)
Elongation
δ4%
Reduction of location
%
Reduction of spot
%
three-one/eight~six-three/four ≥758
-110,000
≥827
-120,000
≥18 fifty ≥50
seven~ten ≥689
-100,000
≥758
-110,000

≥20

 

Why Pick Us
one) Experience in casting for over 15 years and served consumers all all around the world.
two) Common substance according to technological drawing
three)Secure high quality
four) On-time supply
5) Aggressive price tag and good service
six) Optimistic customer comments from domestic and intercontinental market place
7) International innovative-degree these kinds of as CNC, numerical lathes, furnance, welding
  products, CMM and detect &tests products we utilised to make certain our product's good quality.
8) OEM provider, your need is our pursued.
9) ISO9001:2008 and TS16949 high quality control
10) Standard: ASTM BS DIN etc

FAQ
one. What are the main materials of your products?
We are focused on casting and processing of grey iron and ductile iron products.
two. What is your MOQ?
We will arrange production based on your drawings and deliver your products as per your requirements. We will do our best to meet your demands.
three. What is your main equipment?
Our casting equipment is brought from Japan. They mainly include: FBO auto molding lines, sand lines, cleaning lines, vertical and horizontal machining centers and CNC machining center.
4. Do you make the molds by yourself?
We are facilitated with advanced mold making equipment and CNC processing machining center. Therefore, we can make molds independently.
5. What are your advantages?
one) Professional staff
2) 24 years of casting experience
three) Rigorous quality control system
4) On-time delivery rate is over 98%
 
 
 

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MATERIALS AVAILABLE

1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request

SURFACE TREATMENT

Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.

PROCESSING METHOD

CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly

QC & CERTIFICATE

Technicians self-check in production,final-check before package by professional Quality inspector

ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009

PACKAGE & LEAD TIME

Size: Drawings

Wooden Case/Container and pallet, or as per customized specifications.

15-25days samples. 30-45days offcial order

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