DRAGON 660HP Mud Pump

Table 1: DRAGON 660HP Triplex Mud Pump Package - Key Technical Specifications
This table provides a quick technical overview of the entire pump package, enabling potential buyers to quickly assess its compatibility with existing infrastructure (such as power, connections, footprint) and whether it meets their specific operational requirements.

Table 2: DRAGON 660HP Performance Data for Different Liner Sizes

Note: The above data is calculated based on 90% mechanical efficiency and 100% volumetric efficiency, representing theoretical performance under standard conditions. Actual performance may vary depending on mud properties and field conditions.

Power End: Built for Durability

Power Frame: Manufactured from high-strength, low-alloy steel plates, reinforced with extensive heavy-duty welded transverse ribs to ensure extreme rigidity and strength. This robust structural design effectively absorbs and dampens operational vibrations, maintaining precise alignment of critical components even under extreme loads, which is fundamental to extending the machine's service life.

Crankshaft Assembly: The core component, the crankshaft, is forged from monolithic alloy steel for enhanced strength and fatigue resistance. Paired with high-quality, heavy-duty main and eccentric bearings, it ensures smooth rotation under immense loads, minimizing power loss.

Pinion Shaft and Gear Set: The heart of power transmission is the herringbone gear set. Compared to traditional spur gears, the herringbone design enables smoother and quieter power transmission.

Crosshead Assembly: Features a large-diameter crosshead and replaceable wear plates (made from materials such as cast iron or bronze) to withstand substantial connecting rod thrust. This design ensures the piston rod maintains precise linear reciprocating motion, which is critical for reducing wear on fluid end seals and liners, directly impacting the pump's maintenance cycle and operating costs.

Fluid End: A Masterpiece of Precision Under High Pressure

Fluid End Module: Utilizes a classic "Y"-type, valve-over-valve configuration in its triplex fluid end module. This design is renowned for its high structural strength, even stress distribution, and ease of field maintenance, making it an industry-proven and reliable solution.

Material Selection: Two core material options are available to address different operating fluids and environments:

Modified 4330 Carbon Steel: A proven industry-standard material suitable for the vast majority of conventional drilling operations. It offers excellent strength, toughness, and durability, providing a reliable balance of performance and cost-effectiveness.

17-4PH Stainless Steel: A premium solution for highly corrosive environments (e.g., wells with high H₂S or chloride content. 17-4PH stainless steel provides excellent corrosion resistance significantly extending the fluid end's service life in harsh chemical conditions, thereby protecting the customer's major asset investment.

Wear Parts

Table 3: DRAGON Liner Material Performance Comparison

Pistons and Piston Rods – Reliable Sealing Under Extreme Pressure

Pistons: Dragon pistons feature a two-component construction. The piston core is made from high-strength forged alloy steel (e.g., 45# steel or 40Cr) and undergoes overall heat treatment for maximum strength and resistance to deformation. Various piston elastomer options are available based on different mud systems and pressure requirements:

Bonded Polyurethane Pistons: Designed for high pressure, high temperature, and oil-based muds. They utilize dual-durometer polyurethane material firmly bonded to the metal core, providing excellent extrusion resistance and wear resistance.

Replaceable Nitrile (NBR) Pistons: Suitable for conventional water-based mud operations, offering a balance of reliability and cost-effectiveness.

Piston Rods: The piston rod is a critical component connecting the power end and the fluid end. Dragon piston rods are manufactured from premium forged alloy steel (e.g., 42CrMo or 35CrMo).

Valve Assembly – Guardians of the High-Pressure World

Material Selection: The process begins with selecting the highest quality alloy steel forgings (e.g., AISI 4119 or 40CrNiMo), ensuring material purity and strength from the source.

Monoblock Forging: The valve body is formed using a monoblock forging process, eliminating the inherent weak welds found in traditionally welded valve bodies and maximizing its structural strength.

Deep Carburizing Heat Treatment: The forged valve bodies and seats undergo deep carburizing and quenching. This process creates an extremely hard (hardness exceeding HRC 60) wear-resistant surface layer, while the core retains good toughness, enabling resistance to wear and absorption of impact.

Post-HT Precision Machining: Critical sealing surfaces undergo final precision grinding only after heat treatment is complete and material properties are stabilized. Although this step increases cost and complexity, it ensures perfect geometric matching and metal-to-metal sealing between the valve body and seat.

Versatility in Field Applications: Domains and Case Studies

The DRAGON 660HP Triplex Mud Pump, with its powerful performance, robust design, and flexible configurability, is an ideal choice for various demanding applications. It is not merely a drilling pump but a versatile fluid handling platform.

Oil and Gas Drilling: This is the core application. Whether on land rigs or offshore platforms, the 660HP pump reliably performs the critical task of circulating drilling fluid-cooling and lubricating the drill bit, efficiently carrying cuttings out of the wellbore, and maintaining wellbore stability. By referring to the performance table in Section 2, operations teams can select the most suitable liner size for different well sections, achieving optimal pressure and flow rate matching.

Well Intervention and Well Killing Operations: Well intervention and killing often require rapid pumping of high-pressure fluids to control wellbore pressure. In these safety-critical scenarios, the reliability and high-pressure capability of the DRAGON 660HP pump make it a trusted choice.

High-Pressure Cementing and Stimulation Support: Although not a dedicated fracturing pump, the strong pressure output of the 660HP pump makes it highly suitable for cementing operations or for use as a mixing, transfer, and boost support pump at fracturing sites, providing auxiliary power for large-scale operations.

Industrial High-Pressure Fluid Transfer: Its rugged and durable characteristics also make it capable of handling other heavy-duty industrial applications, such as long-distance slurry transfer in mining, high-pressure grouting in major infrastructure projects, or long-distance water transfer and drainage in large-scale hydraulic engineering projects.

Comprehensive Support and Accessories

Table 4: Key Wear Parts and Accessories List
This table demonstrates Dragon's extensive spare parts supply capability, further solidifying its position as a one-stop procurement partner for customers, assuring them that all necessary support is readily available.

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