Xinyongjia 3 1/8 Inch Multi-media PDM Downhole Motor for Coiled Tubing (Model: DXL7LZ79X7.0)

Product Introduction

The Xinyongjia DXL7LZ79X7.0 represents a highly specialized 3 1/8 inch (79mm) multi-media PDM downhole motor, specifically engineered for demanding coiled tubing (CT) operations. Measuring exactly 3 meters in total length and featuring robust 2 3/8 PAC thread connections, this tool exhibits a meticulously machined metallic exterior treated with advanced anti-wear rotor coatings. When handling this equipment on the rig floor, operators will notice the heavy-duty, precision-crafted stator housing that utilizes high-performance synthetic rubber, designed to prevent premature flaking or degradation even under severe friction.

As a multiphase flow mud motor, it operates with exceptional stability when driven by gas-liquid mixed mediums during underbalanced coiled tubing interventions. By efficiently converting fluid hydraulic energy into consistent, reliable rotational torque, it becomes an indispensable asset for plug milling and wellbore remediation. Furthermore, this downhole drilling tool is available in various housing configurations—including straight, single-bend, double-bend, and adjustable angles—allowing operators to navigate complex directional drilling profiles. The optimized rotor-stator assembly ensures stable mechanical output under extreme multiphase well conditions, supporting temperatures up to 180℃ (355℉) and showing complete compatibility with both oil-based and saturated saltwater drilling fluids.

Product Advantage

Advantages of Xinyongjia DXL7LZ79X7.0 Multi-media PDM Drilling Downhole Motor

1.This patented coiled tubing drilling mud motor is exclusive proprietary equipment, serving as a unique downhole PDM mud motor customized for complex CT downhole construction.

2.The multiphase flow PDM mud motor adapts to liquid, air, nitrogen and lubricant mixtures, a versatile screw drilling tool for diversified coiled tubing well intervention.

3.Equipped with professional oil seal transmission assembly, this CT downhole drilling motor cuts internal leakage and maintains stable power in long-term multiphase downhole operations.

Technical Parameters

The performance of the DXL7LZ79X7.0 coiled tubing mud motor is defined by its rigorous mechanical specifications, engineered to deliver maximum torque within a constrained dimensional footprint. With an outer diameter of exactly 79 mm (3-1/8 inches) and a 7:08 lobe configuration across 3 stages, this tool generates a robust output torque of 1041 N.m (771 lb.ft) under a standard working pressure drop of 3.0 Mpa. Operators must adhere strictly to these operational thresholds, including the recommended flow rate of 400-500 LPM and a maximum power output of 45 KW, to ensure optimal milling efficiency and prevent premature wear on the rotor-stator assembly.

Product Uses

1. Plug & Cement Plug Milling for CT Workover

   This slim coiled tubing PDM mud motor delivers steady, aggressive torque specifically calibrated to mill through tough composite bridge plugs and dense cement plugs inside narrow casings. As a highly compact screw drilling tool, it clears hard obstructions efficiently for post-fracturing well restoration. The steady rotational force minimizes jarring vibrations, ensuring a smooth milling progression that leaves a clean, polished casing interior ready for subsequent production phases.

2. Slim-Hole Re-entry & Sidetrack Drilling

   The small-diameter straight downhole mud motor perfectly fits narrow tubing strings, making it the ideal choice for re-entry sidetracking in mature, depleted oil wells. This coiled tubing drilling tool allows operators to tap into bypassed hydrocarbon reserves without the immense capital expenditure of full rig mobilization, drastically cutting overall operation costs. Its precise directional control facilitates accurate trajectory management in tight subterranean formations.

3. Wellbore Cleanout & Paraffin Removal

   Our CT screw drilling tool expertly handles routine sand washing, heavy scale scraping, and stubborn wax removal in highly deviated and horizontal slim wells. It serves as reliable downhole power equipment for regular coiled tubing maintenance and unblocking operations. By maintaining a consistent RPM even when encountering variable debris densities, it ensures the wellbore remains fully patent, thereby restoring optimal fluid flow and maximizing asset profitability.

Product Operate Guide

Xinyongjia Downhole Motor Manual(Chinese -English)

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