- Quality
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We supply high-quality API 5DP drill pipe manufactured to strict API specifications, designed to deliver reliable performance in demanding drilling environments. Our drill pipe features premium seamless steel bodies with durable tool joints, offering excellent tensile strength, torsional capacity, and wear resistance. Available in multiple sizes, grades, and connection types, our API 5DP drill pipe provides dependable drilling efficiency and long service life for a wide range of oil and gas applications.
We supply robust Heavy Weight Drill Pipe (HWDP) engineered to bridge the transition between drill pipe and drill collars, delivering enhanced strength and stability in the drill string. Our HWDP is manufactured to API standards and features thick-walled, wear-resistant bodies with integral or welded tool joints. Designed to reduce fatigue, improve weight-on-bit control, and handle challenging drilling conditions, our HWDP offers reliable performance and extended service life across a wide range of oil and gas drilling applications.
Casing is pipe usually larger in diameter and longer than drill pipe and is used to line the hole. Casing operations occur periodically throughout the drilling process starting with the surface casing, intermediate casing, and ending with production string which takes place during well completion.
The activities involved in casing operations can vary according to the type of casing being installed, but generally fall into these steps:
Oilfield tubing, also known as production tubing, is a type of pipe used in oil and gas wells. It is the conduit through which oil and gas are brought from the reservoir to the surface. Made from high-strength steel or other durable materials, oilfield tubing is designed to withstand the harsh conditions of the subsurface environment.
Oilfield tubing is a part of the well’s architecture, which also includes the casing and the drill pipe. While the casing provides structural integrity to the wellbore, the drill pipe is used to drill the well. The tubing, on the other hand, is the final pathway for the oil or gas to reach the surface.
Line pipe is a type of pipe that is manufactured from high strength carbon steel. It is typically made according to metallurgical specifications that were developed by the American Petroleum Institute (API). Line pipe can be used to build pipelines that transport a variety of resources including natural gas, oil, petroleum, and water. This pipe is available in a variety of diameters ranging from 2 inches to 48 inches.
Line pipe can include either seamless or welded carbon steel or stainless steel piping. Because line pipe needs to withstand high pressures, there are important tests done on line pipe to ensure it meets all of the requirements of steel chemistry, strength, toughness, and dimensional characteristics. Using line pipe that meets the set criteria will ensure safe and reliable pipeline service.
The pup joint refers to a pipe connection component with a shorter outer dimension, which can connect pipes with defects or different sizes at both ends. Its internal structure is usually an elastic gasket or a locking device, which realizes the tight sealing and safe operation of the connection part. The pup joint is a kind of octg pipe, which is widely used in the fields of oil, chemical industry, metallurgy, machinery, construction, etc.
The role of the pup joint in the oil field is mainly reflected in improving drilling efficiency, preventing blockage, and enhancing the stability of the connection.
Our team delivers reliable solutions tailored to your specific needs. We prioritize quality and customer satisfaction in every project.
Dedicated to excellence, we work closely with clients to achieve outstanding results. Communication and trust are key in our approach.
At the core of our mission is a deep commitment to excellence and client satisfaction. Our team works tirelessly to provide thoughtful solutions, ensuring that every detail reflects care.
ADT API 5L Line pipe for pipe line transportation systems in the petroleum and natural gas industries...
Slotted Casing, a new product from ADT, is a sand control pipe for oil (water and gas)...
OCTG Tubing/Tubing oil and gas that as per standard API 5CT and 5B. Special material...
Size: 4-1/2 In.to 20 In.● Material Grade: H40, J55, K55, N80, N80Q, L80, C90, C95,...
Mechanical property as per API 5CT, 5B and Customer requirements.. ● Heavy wall...
Standard: API 5CT 10th Edition . ● Specification: From 0.75”to 20”. ● Grade: H40,
The Premium connection from ADT has great gas-tight, through the gas seal structure...
Size Range: 2-3/8, 2-7/8 and 3-1/2. ●O.D. for Tubing 4-1/2 -20 OD for Casing. ●Thread...
ADT offers API 5CT Spec.Casing and Tubing...
ADT offers API Spec.5CT Coupling, D10 coupling,including Special clearance coupling...
CRA Pipe 9%,13%,28% Chromium grades and corrosion Resistant Alloys(CRA) . L80-...
9%,13%,28% Chromium grades and corrosion Resistant Alloys(CRA) . L80-...
●Standard: API Spec.7-1and NS-1
●Material: AISI4145H, 4145H Mod, non-magnetic material
●Type: Slick Drill Collar, Spiral Drill Collar, Short Drill Collar
●Special Feature: Threads Cold Rolled; Pin Relief Groove and Box Bore Back; Slip and Elevator Recess; Hard banding
●Providing Customized Services
●Technical Specification Sheet Available
Drill collar as one component of a drill string is extremely industrial tubular and used to drill into the ground to provide weight on the bit for drilling. It is used in conjunction with a drill pipe. There are slick and spiral-grooved types mainly.
ADT’s collars are engineered to the highest standards to deliver optimal performance and durability for demanding drilling applications. Our manufacturing process is certified to API spec 7-1 and NS-1, and our products undergo rigorous quality control to ensure dependable service under punishing downhole conditions.
| AISI 4145H | AISI 4145H is a high-strength alloy steel known for its excellent mechanical properties. It is a popular choice due to its superior strength, toughness, and resistance to wear and corrosion. This material is capable of withstanding the high stresses and torsional loads encountered during drilling operations, making it a reliable option for demanding drilling environments. |
| 4145H Mod | 4145H Mod is an even more enhanced version of AISI 4145H, improving the material’s mechanical properties. |
| Non-Magnetic Material | In certain drilling applications, especially those involving sensitive equipment such as directional drilling tools and downhole instruments, the use of non-magnetic materials is crucial. Non-magnetic drill collars are designed to minimize interference with magnetic surveying equipment and maintain the accuracy of directional drilling operations. These collars are typically made from specialty alloys that exhibit very low magnetic permeability, ensuring minimal magnetic interference while maintaining the structural integrity needed for the drilling process. our non-magnetic collars provide the rugged strength to withstand the stresses of horizontal, directional, and extended-reach drilling. With an exceptional torque capacity and ideal straightness characteristics, the ADT collar transmits weight and rotary power effectively for greater drilling efficiency. |
ADT offers a complete range of collar configurations to suit specific drilling requirements, You can clearly obtain the technical specifications for each type of collar in the following table.:
Slick Collars With a smooth, chrome-plated outer diameter, it reduces torque and prevents damage while passing through the wellbore. The hard chrome plating also increases corrosion resistance. |
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Spiral Drill Collars The spiral/fluted profile allows faster circulation and improved hole cleaning. The flutes provide wider fluid channels to quickly clear cuttings and prevent clogging. |  |
Non-magnetic drill collars Non-magnetic drill collars are designed to minimize interference with magnetic surveying equipment and maintain the accuracy of directional drilling operations. These collars are typically made from specialty alloys that exhibit very low magnetic permeability, ensuring minimal magnetic interference while maintaining the structural integrity needed for the drilling process. our non-magnetic collars provide the rugged strength to withstand the stresses of horizontal, directional, and extended-reach drilling. |
|
O.D. | I.D. | Length mm | Style of Connection | Bevel Diameter mm | Bending Strength Ratio | ||
mm | In. | mm | In. | ||||
79.4 | 3-1/8 | 31.8 | 1-1/4 | 9150 | NC23-31 | 76.2 | 2.57:1 |
88.9 | 3-1/2 | 38.1 | 1-1/2 | 9150 | NC26-35(2-3/8IF) | 82.9 | 2.42:1 |
104.8 | 4-1/8 | 50.8 | 2 | 9150 | NC31-41(2-7/8IF) | 100.4 | 2.43:1 |
120.7 | 4-3/4 | 50.8 | 2 | 9150 | NC35-47 | 114.7 | 2.58:1 |
127.0 | 5 | 57.2 | 2-1/4 | 9150 | NC3850(3-1/2IF) | 121.0 | 2.38:1 |
152.4 | 6 | 57.2 | 2-1/4 | 9150or9450 | NC44-60 | 144.5 | 2.49:1 |
158.8 | 6-1/4 | 57.2 | 2-1/4 | 9150or9450 | NC44-62 | 149.2 | 2.91:1 |
158.8 | 6-1/4 | 71.4 | 2-13/16 | 9150or9450 | NC46-62(4IF) | 150.0 | 2.63:1 |
165.1 | 6-1/2 | 57.2 | 2-1/4 | 9150or9450 | NC46-65(4IF) | 154.8 | 2.76:1 |
165.1 | 6-1/2 | 71.4 | 2-13/16 | 9150or9450 | NC46-65(4IF) | 154.8 | 3.05:1 |
171.4 | 6-3/4 | 57.2 | 2-1/4 | 9150or9450 | NC46-67(4IF) | 159.5 | 3.18:1 |
171.4 | 6-3/4 | 71.4 | 2-13/16 | 9150or9450 | NC50-67(4-1/2IF) | 159.5 | 2.37:1 |
177.8 | 7 | 57.2 | 2-1/4 | 9150or9450 | NC50-70(4-1/2IF) | 164.7 | 2.54:1 |
177.8 | 7 | 71.4 | 2-13/16 | 9150or9450 | NC50-70(4-1/2IF) | 164.7 | 2.73:1 |
184.2 | 7-1/4 | 71.4 | 2-13/16 | 9150or9450 | NC50-72(4-1/2IF) | 169.5 | 3.12:1 |
196.8 | 7-3/4 | 71.4 | 2-13/16 | 9150or9450 | NC50-77 | 185.3 | 2.70:1 |
203.2 | 8 | 71.4 | 2-13/16 | 9150or9450 | NC50-80 | 190.1 | 3.02:1 |
209.6 | 8-1/4 | 71.4 | 2-13/16 | 9150or9450 | 6-5/8REG | 195.7 | 2.93:1 |
228.6 | 9 | 71.4 | 2-13/16 | 9150or9450 | NC61-90 | 212.7 | 3.17:1 |
241.3 | 9-1/2 | 76.2 | 3 | 9150or9450 | 7-5/8REG | 223.8 | 2.81:1 |
247.6 | 9-3/4 | 76.2 | 3 | 9150or9450 | NC70-97 | 232.6 | 2.57:1 |
254.0 | 10 | 76.2 | 3 | 9150or9450 | NC70-100 | 237.3 | 2.81:1 |
279.4 | 11 | 76.2 | 3 | 9150or9450 | 8-5/8REG | 266.7 | 2.84:1 |
※Drill collar can be customized as per the customer’s design.
O.D. (In.) | 4-3/4 | 6-1/4 | 6-3/4 | 7-1/4 | 7-1/2 | 8 | 9-1/2 | 10 | 11 |
Depth of Cut (In.) | 7/32 ±1/32 | 9/32 ±1/16 | 5/16 ±1/16 | 11/32 ±1/16 | 11/32 ±1/16 | 3/8 ±1/16 | 13/32 ±3/32 | 7/16 ±3/32 | 15/32 ±3/32 |
Spiral Pitch (In.) | 38 ±1 | 42 ±1 | 46 ±1 | 64 ±1 | 64 ±1 | 68 ±1 | 72 ±1 | 76 ±1 | 80 ±1 |
※ Drill collar can be customized as per the customer’s design
O.D Range | Yield Strength | Tensile Strength | Elongation | Hardness | Impact Test | |
mm | In. | Mpa | Mpa | % | HB | J |
79.4-171.4 | 3-1/8-6-3/4 | ≥758 | ≥965 | ≥13 | 285～341 | ≥54 |
177.8-279.4 | 7–11 | ≥689 | ≥930 | ≥13 | 285～341 | ≥54 |
※Mechanical Property of Slick and Spiral Drill Collar made of AISI 4145 H.
Every ADT product is precision-manufactured using state-of-the-art methods to ensure reliable performance, Bores are trepanned from one direction with no mismatch. All drill collars are heat-treated with hardness within 285 to 341 BHN, which are guaranteed one inch below the surface of the pipe.
With their rugged design, ADT products are ideal for demanding oil and gas drilling operations.
The non-magnetic AISI 4145H alloy steel construction makes our collars well-suited for directional and horizontal drilling. Whether you need API 7-1 compliant collar for offshore rigs or optimized collars for land-based wells, ADT has the right product. With excellent torque capacity, ADT products improve weight transfer and borehole quality in a wide range of drilling environments, from top-hole drilling to deep hydrocarbon exploration.
Our team delivers reliable solutions tailored to your specific needs. We prioritize quality and customer satisfaction in every project.
