API 4145H NC44-62 oil drilling spiral drill collar
| Min. Order: | 1 Piece/Pieces |
|---|---|
| Trade Term: | FOB,CFR,CIF,DDP,DAP,CIP,CPT,FCA,EXW |
| Payment Terms: | L/C, T/T, WU |
| Supply Ability: | 500 Piece/Pieces per month |
| Place of Origin: | Shaanxi |
Company Profile
| Location: | Xi'an, Shaanxi, China (Mainland) |
|---|---|
| Business Type: | Manufacturer, Trading Company, Agent, Distributor/Wholesaler, Service, Association, Other |
| Main Products: | 8-1/2 Spiral Blade Stabilizer AISI 4145H MOD, AISI 4145H MOD Stabilizer For Well Drilling, 4 1/2 RTTS Safety Joint, 5 RTTS Safety Joint, RTTS PACKER |
Product Detail
| Model No.: | API 7-1 drilling tools/downhole tools |
|---|---|
| Means of Transport: | Ocean, Air, Land |
| Machine Type: | Drilling Tool |
| Certification: | API |
| Use: | Well Drilling |
| Material: | AISI 4145H |
| Length: | 9150 or 9450 mm |
| Connection: | NC23-31,NC31-41,NC35-47,NC38-50 |
| OD: | 79.4 - 279.4 mm |
| Condition: | new |
| Manufacture technique: | Hot forged and heat treated |
| Production Capacity: | 500 Piece/Pieces per month |
| Packing: | bundled |
| Delivery Date: | 10~30 days |
Product Description
Introduction
Usage: Drill collars are used to provide weight on bit so that drill pipes are kept in tension. Especially drill collars can keep drill bits centralized and hole track by large rigidity
Material: AISI 4145H, 4145H Mod and Non-magnetic material.
Standard: API Spec7, API Spec7-1 and SY/T Standard. ALSO WE CAN SUPPLY DS-1 and NS-1 STANDARD.
Hard band: Arnco100XT, Arnco200XT and Arnco300XT; Botn1000, Botn3000, TCS8000, TCS-Titanium, Armacor M etc. Also we can make according to customers' requirements.
Size: OD: 3 1/8"~~11"; ID: 1 1/2"Min. Length:10'~~31'
Detail specification
Mechanical Property of Drill Collar | ||||||
OD | Yield Strength | Tensile Strength | Elongation | Brinell Hardness HB | Charpy | |
mm | in inch | σ 0.2 Mpa | σ b Mpa | 4% | AKVJ | |
79.4-171.4 | 3 1/8-6 3/4 | ≥758 | ≥965 | ≥13 | 285-341 | ≥54 |
177.8-279.4 | 7-11 | ≥689 | ≥930 | |||
Stress Relief Groove for Thread Connection | |||||
Style of Connection | Length between Inner Thread Shoulder and the last Dens | Diameter of Inner Thread | Taper of the Hole nest to inner Thread | Outer Thread Diameter | Length between alternative Inner Thread Shoulder and Stress Relief Groove |
±1.59mm | Dcb+0.40,-0 | ±20.83 | DRG+0 -0.79 | LRG +0 -3.18 | |
mm | mm/m | mm | mm | ||
NC35 | 82.6 | 82.15 | 166.67 | 82.15 | 85.73 |
NC38(3 1/2IF) | 88.9 | 88.11 | 166.67 | 89.3 | 92.08 |
NC44 | 101.6 | 101.6 | 166.67 | 106.36 | 104.78 |
NC46(4IF) | 101.6 | 106.76 | 166.67 | 109.93 | 104.78 |
NC50(4 1/2IF) | 101.6 | 117.48 | 166.67 | 120.65 | 104.78 |
NC56 | 114.3 | 121.84 | 250 | 134.14 | 117.48 |
NC61 | 127 | 132.95 | 250 | 149.25 | 130.18 |
NC70 | 139.7 | 152 | 250 | 171.05 | 142.88 |
6 5/8REG | 114.3 | 134.14 | 166.67 | 137.72 | 117.48 |
7 5/8REG | 120.7 | 133.35 | 250 | 162.72 | 123.83 |
8 5/8REG | 123.8 | 149.25 | 250 | 184.94 | 127 |
Note: The connection of NC23,26,31 and 2 3/8IF are without stress relief groove mould for their thin wall. | |||||
Our main product drilling tools include: drill pipe, drill collar, heavy weight drill pipe, stabilizer, etc.
Heavy weight drill pipe
Company Introduction
XI'AN KINGWELL OILFIELD MACHINERY Co., Ltd. (KINGWELL) is a highly reputable supplier for oilfield equipment and services to Oil & Gas industries and provides complete solutions.
With over 10 years developing, we were developed from the beginning drilling service to manufacture factory who produce OCTG, drilling tools, DST tools and Solid control products.
KINGWELL have experienced team, stronger enough to meet any challenge, we do believe honest is the base of business and cooperation; our aim is to build solid relationship with any part of honest. kingwell can provide highly efficient services to its clients resulting in accurate and timely deliveries at the best prices. Our products have been exported to Europe, American and Middle East.