API Spec 5DP Drill Pipe

Description

API Spec 5DP Drill Pipe for Oil & Gas Drilling

SGPE supplies API Spec 5DP drill pipe for oil and gas drilling projects. The pipe connects the drill bit with the surface drilling system, carries drilling fluid to the bottom of the well, and transfers rotary power during drilling. With reliable torque transmission, stable mud circulation and strong drill string performance, SGPE helps drilling contractors work in conventional wells, deep wells, directional wells and horizontal wells.

SGPE manufactures drill pipe according to SY/T 5561 and API Spec 5DP standards. Our size range covers 2 3/8 in to 6 5/8 in, and available steel grades include E75, X95, G105 and S135. Customers can choose suitable upset types, tool joint options, thread treatments, hardbanding, internal coating and special technical requirements according to well design, rig condition and drilling program.

For wells with casing wear or tool joint wear concerns, SGPE can apply hardbanding on the tool joint area. SGPE has obtained the production and use license for ARNCO 100XT, ARNCO 150XT, ARNCO 300XT and ARNCO 350XT. This capability allows customers to source hardbanding drill pipe from SGPE for deep well drilling, directional drilling, horizontal drilling, extended-reach drilling and high-torque oilfield applications.

Send us your required size, grade, thread type, upset type, hardbanding requirement and quantity. SGPE will help you select a suitable solution for your oil and gas drilling project.

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Quick Product Overview

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What Is Drill Pipe?

Drill pipe is a key drill string component in petroleum drilling. It connects the drill bit with the drilling rig and transfers power, drilling fluid and mechanical load throughout the drilling process. Because it works under complex downhole conditions, it must handle torque, tension, bending stress, internal pressure, vibration and repeated make-up and break-out operations.

During oil and gas drilling, the pipe transfers rotary power from the rig to the drill bit so the bit can cut the formation efficiently. At the same time, drilling mud flows through the pipe to the bottom of the well. The mud cools the bit, carries cuttings back to the surface and helps maintain wellbore stability.

Tool joints connect each pipe length and form a complete drill string. This structure supports oil well drilling, gas well drilling, deep well drilling, directional drilling and horizontal drilling. With dependable drilling tubulars, operators can improve torque transfer, maintain stable mud circulation and support safer downhole operations.

Oilfield drilling often involves high load, high torque, abrasive formations and long drilling intervals. Therefore, customers need accurate dimensions, strong mechanical properties and reliable connections. SGPE controls key production and inspection processes to help reduce drilling risk, improve efficiency and support long-term field performance.

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SGPE Drill Pipe Advantages

1. Manufactured to API Spec 5DP Requirements

SGPE manufactures drill pipe according to API Spec 5DP, SY/T 5561 and related petroleum industry requirements. We focus on the pipe body, tool joint and welding area because these parts directly affect drill string strength, fatigue resistance and field reliability.

2. E75, X95, G105 and S135 Steel Grades

SGPE supplies E75, X95, G105 and S135 drill pipe for different well conditions. E75 suits conventional oil and gas drilling with standard load requirements. X95 offers higher strength for wells that need better load capacity. G105 provides a strong balance of strength, toughness and field performance for medium to demanding drilling applications. S135 supports deep wells, extended-reach wells, high-torque drilling and challenging petroleum projects.

These grade options help customers match well depth, torque demand, tensile load and drilling environment more accurately.

3. ARNCO Hardbanding for Wear Protection

SGPE can apply hardbanding to the female tool joint end to improve wear resistance in demanding oilfield environments. This wear-resistant layer helps reduce direct contact wear between casing and tool joints. It also protects the connection area from excessive abrasion during drilling.

Hardbanding can extend service life, reduce replacement frequency and lower operating cost in harsh drilling conditions. It brings strong value to directional wells, horizontal wells, extended-reach wells and high-torque drilling operations where casing contact and tool joint wear occur more often.

SGPE supports ARNCO 100XT, ARNCO 150XT, ARNCO 300XT and ARNCO 350XT hardbanding options. Customers can choose raised hardbanding or flush hardbanding according to casing protection requirements, well structure, drilling program and field conditions.

4. Phosphated Threads and Thread Protectors

SGPE applies phosphating treatment to both thread ends to protect the thread surface and reduce galling during make-up and break-out operations. Thread protectors also help protect connections during storage, transportation and oilfield handling.

5. Thread Root Cold Rolling

SGPE can process the thread root with cold rolling at both ends. This option helps improve fatigue resistance and supports longer service life under cyclic drilling loads.

6. Make-up and Break-out Test

For projects that require extra connection verification, SGPE can perform make-up and break-out tests on both thread ends. This test helps confirm connection performance before shipment and gives customers more confidence before field use.

7. Custom Options for Oilfield Projects

SGPE supports both standard drill pipe orders and customized oilfield project requirements. Customers can specify size, weight, steel grade, thread type, upset type, tool joint type, hardbanding brand, internal coating, thread treatment and special dimensions. This flexibility helps drilling contractors, oilfield service companies and petroleum equipment distributors source products that match rig conditions, well design and project schedules.

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Product Features

SGPE drill pipe follows SY/T 5561 and API Spec 5DP standards for oil and gas drilling operations. The pipe body, tool joint and welding area meet oilfield requirements for mechanical performance, dimensional accuracy and field reliability.

Available steel grades include E75, X95, G105 and S135. These grades support a wide range of drilling conditions, from conventional oil and gas wells to deep wells, directional wells, horizontal wells, extended-reach wells and high-torque applications.

For projects that require better wear protection, SGPE can apply hardbanding on the female tool joint end. Available options include ARNCO 100XT, ARNCO 150XT, ARNCO 300XT and ARNCO 350XT. Customers can choose a suitable hardbanding type according to casing protection needs, drilling environment and field operating conditions.

SGPE can also provide phosphated threads, thread protectors, thread root cold rolling, make-up and break-out tests, and internal coating for corrosion protection. These options help improve fatigue resistance, connection reliability and service life in demanding oilfield applications.

With these features, SGPE drill pipe can serve onshore drilling, offshore drilling, deep well drilling, directional drilling, horizontal drilling, extended-reach drilling and workover operations in the oil and gas industry.

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Applications in the Oil & Gas Industry

SGPE drill pipe supports petroleum drilling environments where torque capacity, fatigue resistance, connection reliability and casing wear protection matter.

Oil Well Drilling

SGPE drill pipe supports oil well drilling from shallow formations to deeper reservoirs. It helps transfer torque, circulate drilling fluid and maintain stable drill string performance during well construction.

Natural Gas Well Drilling

Gas well drilling often requires dependable drilling tubulars under high load, high pressure and challenging downhole conditions. SGPE provides suitable sizes and grades for gas field drilling projects.

Onshore Oilfield Drilling

For land-based oilfield drilling, SGPE products support conventional drilling, development well drilling, directional drilling and horizontal drilling in different oilfield blocks.

Offshore Oil & Gas Drilling

Offshore drilling projects require stable quality, reliable connections and consistent specifications. SGPE supplies drill pipe for offshore oil and gas environments where safety, durability and traceable product details matter.

Deep Well Drilling

Deep well drilling places high tension, torque and fatigue loads on the drill string. SGPE offers high-strength options, including G105 drill pipe and S135 drill pipe, to support demanding deep well operations.

Directional Drilling

Directional wells require strong fatigue resistance and stable connection performance. SGPE drill pipe supports directional drilling in oil and gas fields where accurate well trajectory and drill string control matter.

Horizontal Well Drilling

Horizontal drilling creates complex contact stress, bending load and casing wear risk. SGPE can provide hardbanding drill pipe to help reduce casing wear and improve tool joint durability in horizontal well sections.

Extended-Reach Drilling

Extended-reach drilling requires strong mechanical performance, dependable connections and efficient torque transfer. SGPE drill pipe helps customers handle long well paths, high torque and demanding oilfield drilling conditions.

Workover Operations

SGPE drill pipe can support oilfield workover operations. It helps operators handle well intervention, repair and maintenance tasks in producing oil and gas wells.

High-Torque Oilfield Drilling

Some drilling projects require higher torque transfer and stronger connection performance. SGPE provides suitable grades, upset types and thread options to match high-torque oilfield applications.

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Drill Pipe Specifications

Small and Medium Size Drill Pipe Specifications

Scroll horizontally to view full drill pipe specifications on mobile devices.

Large Size Drill Pipe Specifications

Scroll horizontally to view full drill pipe specifications on mobile devices.

Grade note: E, X, G and S generally refer to E75, X95, G105 and S135 drill pipe grades. Final grade selection depends on well depth, torque demand, tensile load, drilling program and customer technical requirements.

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Available Drill Pipe Options

SGPE customizes drill pipe according to different oilfield project requirements. Customers can choose the required size, weight and steel grade based on well depth, load demand and drilling conditions. Available grades include E75, X95, G105 and S135, which can support conventional drilling, deep well drilling, directional drilling, horizontal drilling and other oil and gas applications.

SGPE can also provide different thread types, upset types and tool joint types according to customer specifications. For projects that require better wear protection, customers can specify the hardbanding brand and choose raised hardbanding or flush hardbanding based on casing protection requirements and field conditions.

If the project requires corrosion protection, SGPE can provide internal coating according to the required coating brand or technical standard. We can also apply thread phosphating, process thread root cold rolling and perform make-up and break-out tests when customers need extra connection protection or performance verification.

For non-standard oilfield projects, customers can provide drawings, sketches or detailed technical parameters. SGPE will review the requirements and confirm special dimensions before production. Customers can also specify whether the shoulder form of the lifting platform should be 18° or 90°.

This customization ability helps oilfield drilling contractors, petroleum equipment distributors and oilfield service companies source products that match rig conditions, well structure, casing program and drilling environment.

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How to Choose the Right Drill Pipe

Choosing the right drill pipe helps improve drilling efficiency, protect the drill string and reduce field operation risks. Before placing an order, customers should consider well depth, load requirement, drilling environment, connection design, casing wear condition and corrosion protection needs.

For deep wells and extended-reach wells, customers usually need higher strength and better fatigue resistance. In many demanding oil and gas drilling projects, G105 drill pipe or S135 drill pipe can provide stronger support for higher tension, torque and cyclic loads. If the project involves conventional drilling with standard load requirements, E75 or X95 may offer a practical and cost-effective choice.

The drilling environment also affects product selection. Directional wells, horizontal wells and high-torque drilling operations often create more bending stress, side force and contact wear. In these conditions, customers can choose hardbanding drill pipe to improve wear resistance, protect the tool joint area and reduce casing wear during oilfield drilling.

Thread type, upset type and tool joint design also play an important role in field performance. A suitable connection helps improve make-up performance, torque transfer and drill string reliability. SGPE can review customer project specifications and help confirm suitable connection options for oil well drilling, gas well drilling, directional drilling and horizontal drilling applications.

When casing wear control becomes important, customers can choose ARNCO hardbanding options according to the drilling program and casing protection requirements. SGPE can provide raised hardbanding or flush hardbanding based on field conditions, well structure and customer technical requirements.

For projects that require better internal corrosion resistance, SGPE can also provide internal coating. Customers should specify the coating brand, coating type or technical standard when sending an inquiry. After reviewing the well condition, drilling fluid environment and project requirements, SGPE can recommend a suitable solution for oil and gas drilling operations.

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How to Order Drill Pipe from SGPE

To help SGPE prepare a faster and more accurate quotation, customers should confirm the main technical details before placing an order. These details include required size, weight, thread type, connection requirement and steel grade. Customers should also confirm whether the shoulder form of the lifting platform needs to be 18° or 90°.

If the product requires hardbanding, customers should specify the welding wire brand and confirm whether they need raised hardbanding or flush hardbanding. For projects that require internal anti-corrosion protection, customers should provide the internal coating brand, coating type or related technical requirement.

For special orders that do not fully follow standard API Spec 5DP specifications, customers can send detailed technical parameters, drawings or sketches. SGPE will review these details and confirm the finished product dimensions according to project requirements.

Customers should also tell SGPE whether they need thread root cold rolling, thread make-up tests, break-out tests or other inspection requirements. These details help us confirm the production process and quality control plan before manufacturing.

To support quotation and delivery planning, customers should provide the order quantity, destination port, required delivery schedule and any special packing requirements. After receiving this information, SGPE can prepare a suitable technical solution, quotation and delivery plan for the oil and gas drilling project.

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Why Choose SGPE as Your Drill Pipe Supplier?

SGPE focuses on oilfield drilling tools and petroleum machinery products. We understand that drill pipe quality directly affects drilling safety, rig efficiency and project cost. Because of this, we pay close attention to material selection, machining, heat treatment, welding, thread processing, inspection and packaging throughout production.

SGPE supplies API Spec 5DP drill pipe in a wide size range from 2 3/8 in to 6 5/8 in. Customers can choose E75, X95, G105 and S135 grades according to well depth, torque demand, tensile load and drilling conditions. For projects that require better casing wear protection, SGPE provides hardbanding options and supports ARNCO hardbanding solutions.

In addition, SGPE can supply phosphated threads, thread protectors, internal coating and thread root cold rolling according to customer requirements. These options help improve thread protection, corrosion resistance, fatigue performance and connection reliability in oil and gas drilling operations.

For customized oilfield projects, SGPE can review customer drawings, sketches or technical specifications before production. Our team can help confirm size, grade, upset type, tool joint requirement, hardbanding option, internal coating requirement and inspection details. This technical confirmation helps reduce order mistakes and supports smoother project delivery.

SGPE also prepares export-friendly packaging for international shipment and provides timely technical and commercial communication. Whether customers need standard oilfield drill pipe, S135 drill pipe for deep wells, or customized hardbanding drill pipe for horizontal drilling, SGPE can help select a suitable solution for oil and gas drilling projects.

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Quality Control

SGPE checks key performance points before delivery to help customers receive products with stable quality and reliable field performance. During production and final inspection, we review dimensions, surface condition, thread quality, mechanical properties, tool joint condition and welding area quality according to project requirements.

For hardbanded products, SGPE checks the hardbanding area to confirm wear protection performance and surface quality. For phosphated threads, we inspect the phosphating quality and make sure the thread surface receives proper protection. Before shipment, we also check the thread protectors and final packing condition to help protect the products during storage, handling and transportation.

Through these quality control steps, SGPE helps customers receive accurate specifications, dependable connection performance and reliable oilfield performance for oil and gas drilling operations.

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Packaging and Delivery

SGPE protects drill pipe during storage and transportation. We install thread protectors on both ends and prepare export packaging according to customer requirements. For bulk orders, we can coordinate production and delivery schedules based on project timelines.

Customers can send us the order quantity, product specifications, destination port and required delivery time. Our team will provide a suitable quotation, technical confirmation and delivery plan.

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Frequently Asked Questions About API 5DP Drill Pipe

1. What does drill pipe do in oil and gas drilling?

Drill pipe forms an important part of the drill string in oil and gas drilling. It connects the drill bit with the surface drilling system, transfers rotary power and carries drilling fluid down to the bottom of the well.

During drilling, the mud cools the bit, carries cuttings back to the surface and helps maintain wellbore stability. Because of this, oilfield drill pipe must handle torque, tension, bending stress, internal pressure, vibration and repeated make-up and break-out operations.

SGPE supplies drill pipe for oil well drilling, gas well drilling, directional drilling, horizontal drilling, deep well drilling, extended-reach drilling and workover operations.

2. What standards does SGPE drill pipe follow?

SGPE drill pipe follows API Spec 5DP and SY/T 5561 standards. These standards cover key requirements for dimensions, mechanical properties, pipe body performance, tool joint quality and welding area performance.

SGPE controls the pipe body, tool joint, thread, welding area and final inspection process carefully. As a result, customers can use SGPE API 5DP drill pipe in demanding petroleum drilling environments where reliable torque transfer, strong connections and stable field performance matter.

3. What drill pipe sizes can SGPE supply?

SGPE supplies common oilfield drill pipe sizes from 2 3/8 in to 6 5/8 in. These sizes meet the needs of many oil and gas drilling applications, including conventional wells, deep wells, directional wells, horizontal wells, extended-reach wells and offshore drilling projects.

Customers can choose 2 3/8 in, 2 7/8 in, 3 1/2 in, 4 in, 4 1/2 in, 5 in, 5 1/2 in and 6 5/8 in drill pipe according to well design, drilling depth, torque requirement and rig condition. Different sizes can match different weight, wall thickness, grade, upset type and tool joint requirements.

If the project requires special specifications, customers can provide drawings, sketches or detailed technical requirements. SGPE will review the size, connection, steel grade and application conditions, then help confirm a suitable product solution for the oil and gas drilling project.

4. What drill pipe grades are available?

SGPE supplies E75, X95, G105 and S135 drill pipe according to different oil and gas drilling project requirements. Each grade offers different strength and performance characteristics, so customers can choose a suitable option based on well depth, torque load, tensile load, drilling environment and operating conditions.

E75 works well for conventional oil and gas drilling projects with standard load requirements. X95 offers higher strength than E75, so it suits wells that require better load capacity and stronger drill string performance.

For more demanding drilling conditions, G105 provides a good balance of strength, toughness and field performance. S135 offers higher strength and works well in deep wells, extended-reach wells, high-torque drilling and challenging petroleum drilling projects.

To help SGPE recommend the right grade, customers can share well depth, drilling program, connection type, torque demand, tensile load requirement and field operating conditions. After reviewing these details, SGPE can help select a suitable grade for the project.

5. How should I choose the right drill pipe grade?

Customers should choose the drill pipe grade by reviewing well depth, tensile load, torque demand, well trajectory, drilling fluid condition, fatigue requirement and target service life. A routine vertical well may need a different grade from a deep directional well or an extended-reach horizontal well.

For standard oilfield drilling, E75 or X95 can often meet practical operating needs. When the project involves deeper formations, stronger tensile loads or higher torque, customers may consider G105 or S135. For demanding drilling programs, SGPE can review project data and help customers balance strength, performance and cost before production.

6. What is hardbanding on drill pipe?

Hardbanding adds a wear-resistant layer to the tool joint area. This layer helps reduce tool joint wear, protect casing and extend service life during drilling.

In directional wells, horizontal wells and extended-reach wells, the drill string often contacts the casing or wellbore under higher side force. Hardbanding drill pipe can help reduce wear in these conditions and improve drilling efficiency.

SGPE can apply hardbanding on the female tool joint end according to customer requirements.

7. What ARNCO hardbanding options does SGPE offer?

SGPE supports ARNCO 100XT, ARNCO 150XT, ARNCO 300XT and ARNCO 350XT hardbanding options. These materials help improve wear resistance and support longer service life in demanding drilling environments.

Customers can choose raised hardbanding or flush hardbanding according to the drilling program, casing protection requirement and field conditions. For horizontal drilling, directional drilling or high-torque oilfield drilling, SGPE can help customers select a suitable option based on actual operating needs.

8. Can SGPE supply drill pipe for horizontal drilling and directional drilling?

Yes. SGPE supplies drill pipe for horizontal drilling, directional drilling and extended-reach drilling in oil and gas fields.

These drilling environments often create higher bending stress, side force, torque load and casing contact. Therefore, customers usually need reliable fatigue resistance, strong tool joints, stable thread performance and suitable hardbanding.

SGPE can provide API 5DP drill pipe with G105 or S135 grades, ARNCO hardbanding, phosphated threads, thread protectors and optional thread root cold rolling for demanding directional and horizontal well projects.

9. Can SGPE provide drill pipe for offshore oil and gas drilling?

Yes. SGPE can supply drill pipe for offshore oil and gas drilling projects. Offshore drilling often requires stable product quality, reliable connections, corrosion protection and strict specification control.

SGPE offers API Spec 5DP drill pipe in multiple sizes and grades. Customers can also choose internal coating, hardbanding, phosphated threads, thread root cold rolling and make-up and break-out tests according to offshore drilling requirements.

For offshore projects, customers should provide detailed technical specifications, inspection requirements, packing requirements, destination port and delivery schedule when sending an inquiry.

10. What thread and connection options can SGPE provide?

SGPE can provide different thread types, upset types and tool joint options according to customer requirements. We can also apply phosphating treatment to both thread ends, which helps protect the thread surface and reduce galling during make-up and break-out operations.

For thread and connection processing, SGPE can supply phosphated threads, thread protectors and thread root cold rolling. We can also perform make-up and break-out tests when customers need extra connection verification before shipment. According to the drilling program, customers can choose internal upset, external upset or internal-external upset designs.

If the project requires special thread forms, connection dimensions or non-standard technical details, customers can provide drawings, sketches or detailed specifications. SGPE will review the requirements and confirm a suitable solution for oilfield drilling operations.

These options help improve connection reliability, protect the product during handling and transportation, and support stable drill string performance in oil and gas drilling environments.

11. Can SGPE supply drill pipe with internal coating?

Yes. SGPE can provide internal coating for corrosion protection. Internal coating helps protect the inner surface, especially when the drilling environment, drilling fluid or storage condition creates corrosion risk.

Customers should specify the internal coating brand, coating type, technical standard and inspection requirement when sending an inquiry. If the project has special anti-corrosion requirements, SGPE can review the details and confirm a suitable production solution.

12. What information should I provide to get a drill pipe quotation?

To help SGPE prepare a fast and accurate quotation, customers should provide the required size, weight or wall thickness, steel grade, thread type, connection requirement, upset type and tool joint requirement. For steel grade, customers can specify E75, X95, G105 or S135 according to the drilling project.

If the product requires hardbanding, customers should also confirm the hardbanding brand, such as ARNCO 100XT, ARNCO 150XT, ARNCO 300XT or ARNCO 350XT. In addition, please tell us whether the project needs raised hardbanding or flush hardbanding. For projects that require corrosion protection, customers should provide the internal coating requirement or coating brand.

Customers should also confirm whether they need thread root cold rolling, make-up and break-out tests, special inspection requirements or other technical treatments. To support quotation and delivery planning, please provide order quantity, destination port and required delivery time. If the project has special dimensions or non-standard technical requirements, customers can send drawings, sketches or detailed technical parameters.

After receiving these details, SGPE can review the working conditions, confirm the technical solution, check production requirements, prepare the packaging plan and provide a suitable quotation for your oil and gas drilling project.

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Request a Quote for API 5DP Drill Pipe

Looking for a reliable API 5DP drill pipe manufacturer and supplier for your oil and gas drilling project? SGPE provides standard and customized drill pipe solutions for petroleum drilling operations, including E75 drill pipe, X95 drill pipe, G105 drill pipe, S135 drill pipe, ARNCO hardbanding drill pipe, phosphated thread drill pipe and internal coated drill pipe.

Send us your required size, grade, thread type, upset type, hardbanding requirement, coating requirement and quantity. SGPE will provide technical support, product specifications and a competitive quotation for your oilfield drilling project.

 Contact SGPE Oil Machinery today for Drill Pipe price, technical details and delivery information.

E-Mail:
info@sgpe.com