Custom Drill Pipe With Upset Manufacturer in China

Seeking custom drill pipe for unique challenges? We specialize in upset drill pipe manufacturing in China, engineering precise solutions for enhanced tool joint strength and fatigue resistance. Get reliable, high-performance drill pipe tailored to your exact specifications.

Sinodrills - Your Trusted Drill Pipe With Upset Manufacturer from China

Struggling with drill pipe failures? Sinodrills is your reliable partner. We meticulously manufacture drill pipe with upset ends in China, bolstering tool joint integrity and extending service life. Trust our expertise for robust, high-performance solutions that keep your drilling operations running smoothly and efficiently. Choose Sinodrills for unwavering quality and peace of mind.

Various Drill Pipe With Upset

drill pipe upset

Facing downhole stresses? We offer premium drill pipe upset, meticulously engineered for superior tool joint strength and extended fatigue life. Minimize costly downtime with our precision-manufactured solutions, ensuring robust performance and ultimate reliability for your demanding drilling operations. Trust us for your critical drill pipe needs.

external upset drill pipe

Need drill pipe that lasts? We provide premium external upset drill pipe, engineered for superior connection strength and fatigue resistance. Our meticulous manufacturing ensures your drilling operations are more reliable and efficient, minimizing costly downtime. Invest in durability, choose our external upset drill pipe.

internal upset drill pipe

Facing internal drill pipe vulnerabilities? We offer premium internal upset drill pipe, expertly designed to fortify connections and prevent premature fatigue. Our specialized manufacturing ensures superior strength and longevity, providing the robust performance your drilling operations demand for maximum efficiency and reduced downtime.

Customize Your Desired Drill Pipe With Upset

Material Grade Selection

We’ll help you choose the ideal steel grade for your drill pipe, such as E75, X95, G105, or S135, based on your drilling conditions and required yield strength. This ensures the pipe can withstand the specific stresses and corrosive environments of your operation, maximizing durability and safety.

Upset Design Optimization

Our experts will work with you to optimize the upset design, whether it’s an internal, external, or internal-external upset. We consider factors like tool joint dimensions and fatigue resistance to enhance connection strength and extend the life of your drill string under high-torque and tension loads.

Connection Type Specification

We offer a wide range of API and proprietary connection types to match your existing equipment and operational needs. From standard API connections to high-performance double-shoulder designs, we ensure seamless compatibility and secure, reliable make-up for efficient drilling.

Custom Lengths and Weights

We can manufacture drill pipe in custom lengths and wall thicknesses to meet your specific rig limitations and drilling program requirements. This allows for optimized wellbore hydraulics, reduced trip times, and improved overall drilling efficiency tailored to your unique project.

what is drill pipe upset?

Drill pipe upset refers to a forging process that thickens the ends of the drill pipe tube. This intentional thickening, achieved by heating and compressing the steel, creates a stronger section where the tool joints (threaded connections) are subsequently welded.

The purpose of the upset is to compensate for the loss of metal and inherent weakening that occurs during the threading or welding process, ensuring that the connection area is as strong, or even stronger, than the main body of the pipe.

There are typically three types of upsets: internal upset (IU), external upset (EU), and internal-external upset (IEU), each designed to optimize strength and flow characteristics for specific drilling applications.

external upset drill pipe and internal upset drill pipe

In drill pipe manufacturing, “upset” refers to a forging process that thickens the pipe wall at its ends to accommodate welding of the tool joints. This additional material provides the necessary cross-sectional area to ensure the connection’s strength is comparable to, or even greater than, the pipe body itself.

The type of upset chosen depends on various factors, including desired fluid flow, connection type, and drilling application. The two primary types are external upset (EU) and internal upset (IU), with a third, internal-external upset (IEU), combining features of both.

External Upset Drill Pipe (EU)

External upset drill pipe features a thickened wall section that extends outward from the pipe’s original outer diameter at the ends. The internal diameter of the pipe remains largely consistent throughout its length.

Advantages:

Maintains a relatively consistent internal diameter, which helps optimize drilling fluid flow and minimize pressure drop.
Allows for the passage of larger wireline tools and downhole equipment.

Often preferred for applications where maximizing fluid flow is critical.

Internal Upset Drill Pipe (IU)

Internal upset drill pipe has a thickened wall section that extends inward from the pipe’s original inner diameter at the ends. The outer diameter of the pipe typically remains uniform along its length, except for a minor external upset that may be present for manufacturing purposes.

Advantages:

Provides additional strength at the connection without increasing the pipe’s outer diameter, which can be beneficial for slim-hole drilling or tight clearances.
Creates a larger surface area for thread engagement, leading to a more secure and robust connection.
Minimizes the potential for galling (metal-to-metal damage) during thread make-up.

Uses of drill pipe with upset

Drill pipe with upset ends is a fundamental component in oil and gas drilling, primarily utilized to create a robust and durable drill string capable of withstanding the extreme forces encountered during drilling operations. The thickened upset sections provide critical reinforcement where the tool joints are attached, preventing premature failure due to stress concentration, fatigue, and wear. This enhanced strength at the connections is vital for transmitting high torque and axial loads from the surface to the drill bit, often miles underground.

Deep and Directional Drilling: Essential for high-stress applications where the drill string experiences significant tensile, compressive, torsional, and bending loads.
High-Pressure Environments: The reinforced connections maintain integrity under high internal and external pressures.
Abrasive Formations: The added material at the upset helps resist wear and abrasion from contact with the wellbore.
Extended Reach Drilling (ERD): Crucial for maintaining connection strength and fatigue resistance over long horizontal sections.
Heavy Weight Drill Pipe (HWDP) Applications: Often used in conjunction with upset to provide added weight and stiffness for improved drilling performance and wellbore stability.

where you can Use Drill Pipe with Upset

Drill pipe with upset ends is a critical component across various drilling operations, particularly in the oil and gas industry, due to its enhanced strength and durability at the crucial connection points.

Its primary utility lies in forming a robust drill string that can withstand the immense stresses encountered when drilling deep, complex, and challenging wells.

Here’s where you can typically use drill pipe with upset:

Deep Well Drilling: As wells extend thousands of meters into the earth, the drill string experiences tremendous tensile and compressive loads. Upset drill pipe ensures the connections can handle these forces without failing, making it indispensable for deep oil, gas, and geothermal wells.
Directional and Horizontal Drilling: In modern drilling, wells are often steered horizontally or at complex angles to maximize reservoir contact. This subjects the drill pipe to significant bending, torsional, and cyclic fatigue stresses. Upset pipe provides the necessary strength and fatigue resistance in these demanding applications.
High-Pressure and High-Temperature (HPHT) Environments: Wells drilled into HPHT formations require materials and connections that can maintain integrity under extreme conditions. The strengthened upset areas contribute to the overall pressure containment and structural stability of the drill string.
Abrasive and Unstable Formations: When drilling through highly abrasive rock or unstable formations, the drill pipe and its connections are subjected to significant wear and tear. The added material at the upset helps to extend the life of the pipe by providing more material to resist abrasion and erosion.
Offshore Drilling: Offshore operations, particularly in deepwater, involve very long drill strings and often encounter dynamic loads from vessel movement. Upset drill pipe is vital for the reliability and safety of these complex and costly operations.
Heavy Weight Drill Pipe (HWDP) Applications: While HWDP itself has thickened walls, the ends are also upset to accommodate tool joints. HWDP with upset is used as a transition between drill collars and standard drill pipe, providing weight and stiffness while reducing fatigue failures in this critical zone.

how to choose Drill Pipes with Upset

Choosing the right drill pipe with upset ends is crucial for optimizing drilling performance, ensuring safety, and minimizing non-productive time (NPT). It involves a careful assessment of various technical specifications and operational requirements. Since we’re located in Qingdao, Shandong, China, we understand the global standards and local drilling conditions that influence these choices.

Here’s how to choose drill pipes with upset:

Understand Drilling Conditions and Well Design:
- Well Depth and Trajectory: Deeper wells and complex directional or horizontal wells require higher-strength drill pipe (e.g., G-105, S-135) to withstand increased tensile, compressive, and torsional stresses.
- Formation Characteristics: Drilling through hard, abrasive, or unstable formations necessitates pipes with superior wear resistance and robust upset designs, possibly with hardbanding on tool joints.
- Downhole Pressures and Temperatures: HPHT environments demand pipe grades and upset designs that can maintain structural integrity under extreme conditions.
- Drilling Fluid Properties: The type of drilling fluid (e.g., corrosive muds) influences the need for corrosion-resistant materials or coatings. The internal diameter (ID) of the pipe, affected by the upset type, also impacts fluid flow and pressure drop.
Select Appropriate Material Grade:
- Drill pipes are typically made from high-strength alloy steel, with common API grades including E-75, X-95, G-105, and S-135. Higher grades offer increased yield and tensile strength, suitable for deeper and more challenging wells. Proprietary grades might offer enhanced performance for specific sour service or critical applications.
Determine the Upset Type:
- External Upset (EU): Ideal for applications where maintaining a consistent internal diameter for optimal fluid flow and larger tool passage is critical.
- Internal Upset (IU): Useful in slim-hole drilling where external diameter is restricted, providing strength without increasing the OD.
- Internal-External Upset (IEU): Offers a balance of internal and external thickening, providing maximum strength at the connection area. The choice depends on balancing strength requirements with flow characteristics and wellbore clearance.
Specify Connection Type:
- Tool joints are crucial, and their connection type must be compatible with existing rig equipment and capable of handling anticipated loads. Common types include API Regular (REG), Internal-Flush (IF), Full Hole (FH), and Numbered Connections (NC). Premium, double-shoulder connections offer enhanced performance for demanding scenarios with better sealing and torque shoulders.
Consider Dimensional Specifications:
- Outer Diameter (OD) and Wall Thickness: These are chosen based on the wellbore size, required weight-on-bit, and rig hoisting capacity. A good rule of thumb for efficient circulation is to have the drill pipe OD to borehole diameter ratio around 0.6.
- Length: Standard lengths (Range 2: 27-31 ft) are common, but longer (Range 3: 38-45 ft) pipes can reduce the number of connections and trip times, especially in deep-water drilling, though they exert greater load on each tool joint.
Adherence to API Standards and Quality:
- Always ensure the drill pipe adheres to API Specification 5DP, which covers technical delivery conditions for drill pipe with upset pipe-body ends and weld-on tool joints. Look for manufacturers with API Q1 and ISO 9001 certifications.
- Beyond initial purchase, rigorous inspection and maintenance programs, following API RP 7G-2 for used drill pipe, are essential for safety and prolonging service life.

By carefully evaluating these factors in consultation with experienced drilling engineers and reputable manufacturers, you can select the optimal drill pipe with upset for your specific project, ensuring efficiency, reliability, and safety.

Send Your Inquiry Now

All-in-one Drill Pipe With Upset Solutions for Your Project

Struggling with diverse drilling demands? We offer all-in-one drill pipe with upset solutions, engineered to meet your project’s unique specifications. Our comprehensive range ensures optimal strength, flow, and compatibility, providing the reliable performance you need to maximize efficiency and minimize downtime.