|
Product Details:
Payment & Shipping Terms:
|
| Size: | 4 1/8"~10" | Steel Grade: | 4145H |
|---|---|---|---|
| Application: | Well Drilling | Thread Type: | NC , REG |
| Highlight: | AISI 4145H Spiral Drill Collar,NC Thread Spiral Drill Collar,Spiral Collar Drill Spare Parts |
||
Material AISI 4145H Sprial Drill Collar for Oil and Gas
Product Introduction
Spiral drill collar is used to reduce contact area with hole so as to avoid efficiently bit sticking from diffirential pressure. The drill collars are manufactired strictly according to API Spec7-1 and Standard SY5144. The drill collars are made of modified AISI 4145H chromium molybdenum alloy steel.
Our Spiral Drill Collar is made from AISI 4145H modified alloy steel, and completely meets the requirement of API Spec 7-1 and SY/T5144 Standard. 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. The single weight of the spiral drill collar is round about 4% lighter than the ordinary drill collar with the same specification, and the shape and thread of the both ends are the same with the drill collar.
Technical Parameters of Our Drill Collar
| Type | OD(mm) | ID(mm) | L(m) ±152.4mm d |
DF(mm) ±0.4 |
NC23-31 |
79.4 | 31.8 | 9.14 | 76.2 |
| NC26-35 | 88.9 | 38.1 | 9.14 | 82.9 |
| NC31-41 | 104.8 | 50.8 | 9.14or9.45 | 100.4 |
| NC35-47 | 120.6 | 50.8 | 9.14or9.45 | 114.7 |
| NC38-50 | 127 | 57.2 | 9.14or9.45 | 121 |
| NC44-60 | 152.4 | 57.2 | 9.14or9.45 | 144.5 |
| NC44-60 | 152.4 | 71.4 | 9.14or9.45 | 144.5 |
| NC46-62 | 158.8 | 57.2 | 9.14or9.45 | 149.2 |
| NC46-62 | 158.8 | 71.4 | 9.14or9.45 | 150 |
| NC46-65 | 165.1 | 57.2 | 9.14or9.45 | 154.8 |
| NC46-65 | 165.1 | 71.4 | 9.14or9.45 | 154.8 |
| NC46-67 | 171.4 | 57.2 | 9.14or9.45 | 159.5 |
| NC50-70 | 177.8 | 57.2 | 9.14or9.45 | 164.7 |
| NC50-70 | 177.8 | 71.4 | 9.14or9.45 | 164.7 |
| NC50-72 | 184.2 | 71.4 | 9.14or9.45 | 169.5 |
| NC56-77 | 196.8 | 71.4 | 9.14or9.45 | 185.3 |
| NC56-80 | 203.2 | 71.4 | 9.14or9.45 | 190.1 |
| 6-5/8REG | 209.6 | 71.4 | 9.14or9.45 | 195.6 |
| NC61-90 | 228.6 | 71.4 | 9.14or9.45 | 212.7 |
| 7-5/8REG | 241.3 | 76.2 | 9.14or9.45 | 223.8 |
| NC70-97 | 247.6 | 76.2 | 9.14or9.45 | 232.6 |
| NC70-100 | 254 | 76.2 | 9.14or9.45 | 237.3 |
| 8-5/8REG | 279.4 | 76.2 | 9.14or9.45 | 266.7 |
| NC50-67 | 171.5 | 71.4 | 9.14or9.45 | 159.5 |
Mechanical Property Of TR Drill Collar
OD Size |
Yield Strength σ0.2 Mpa(psi) |
Tensile Strength σb Mpa(psi) |
Elongation δ4% |
Reduction of area % |
Reduction of area % |
3-1/8~6-3/4 |
≥758 -110,000 |
≥827 -120,000 |
≥18 |
50 | ≥50 |
| 7~10 | ≥689 -100,000 |
≥758 -110,000 |
≥20 |
Xi'An TianRui Petroleum Machinery Equipment Company Limited is located in Xi'an city in China. We are a professional supplier of various oilfield equipment, spare parts and technology, including supplying solid control equipment, drilling rigs, workover rigs, service equipment, and oil production equipment, OCTG ,wellhead & downhole tools and spare parts with API certification, chemicals (Cementing additives , Drilling fluids & Production),etc. Following the principle of "quality first, customers oriented", every TR person is struggling the hardest to provide the customers with best products and services. .
Competitive Advantages
1. We offer high quality products at competitive price.
2. Shortest delivery time.
3. Flexible payment terms.
4. Timely after-sale service.
5. Most of our equipment can be replaceable with international brands.
6. Our products have been exported to Argentina, Egypt, US, Australia, Romania, Pakistan, Dubai, Abu Dhabi, Iran, India, Indonesia, Vietnam, Malaysia and many other countries.
Contact Person: Ms. Sunny Lee
Tel: +86 13186019379
Fax: 86-29-8633-2919
