Xi'an TianRui Petroleum Machinery Equipment Co., Ltd.
| Payment Terms | L/C, D/A, D/P, T/T, Western Union |
| Supply Ability | 100000 pcs per month |
| Delivery Time | Within 8 days after deposit |
| Packaging Details | Pallet or wooden case |
| Material | Alloy steel |
| OD | 79.4-279.4 mm |
| Steel Grade | E75, G105, S135,X95 |
| Length | 9150 or 9450mm |
| Brand Name | TR Solids Control |
| Model Number | TRDT |
| Certification | API 7-1 Certificate, ISO Certificate |
| Place of Origin | Xi'an China |
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union | Supply Ability | 100000 pcs per month |
| Delivery Time | Within 8 days after deposit | Packaging Details | Pallet or wooden case |
| Material | Alloy steel | OD | 79.4-279.4 mm |
| Steel Grade | E75, G105, S135,X95 | Length | 9150 or 9450mm |
| Brand Name | TR Solids Control | Model Number | TRDT |
| Certification | API 7-1 Certificate, ISO Certificate | Place of Origin | Xi'an China |
| High Light | Slick Collar Drill Spare Parts ，Oilfield Slick Drill Collar ，Alloy Steel Drill Spare Parts | ||
Alloy Steel Oilfield Sprial and Slick Drill Collar API 7-1
Product Descrption
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.
Rigid Inspection Procedures: We inspect all our drill collars to ensure compliance with API SPEC 7-1 standards. These inspections include visual dimensional checks as well as ultrasonic inspections over the entire body of the drill collar.
Cold Rolling: Drill collar thread roots, as well as elevator recess upper radius, are cold-rolled. Cold rolling creates a compressive recess upper radius stress condition that increases fatigue life by minimizing crack initiation.
Phosphate-coated or Copper Plating: All connections are phosphate-coated or copper plated to improve resistance to corrosion.
Technical Specifications 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 a professional supplier of various oilfield equipment, including oil drilling and service equipment,oil production equipment,OCTG ,wellhead & downhole tools and spare parts with API certification. Our products have already been exported to USA, South America, Africa, Middle East, Russia and some other countries (regions). We have become VIP (assigned) supplier and built strategic partnership with some coutries' national petroleum companies.
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.
Company Details
Business Type:
Manufacturer
Year Established:
2010
Total Annual:
40 Million-50 Million
Employee Number:
350~450
Ecer Certification：
Verified Supplier
Xi'An TianRui Petroleum Machinery Equipment Co.,Ltd. (For short: TR Solids Control) is a professional manufacturer of solids control equipment and mud recovery system, located in Xi'an City, China. Since 2010, TR Solids Control focused on the development and production of... Xi'An TianRui Petroleum Machinery Equipment Co.,Ltd. (For short: TR Solids Control) is a professional manufacturer of solids control equipment and mud recovery system, located in Xi'an City, China. Since 2010, TR Solids Control focused on the development and production of...
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