Product Overview
The Low Speed Spinning Jetting Tool is a specialized rotary descaling downhole tool developed for coiled tubing well intervention operations, mainly used for inner wall cleaning, scale removal and sediment flushing of production tubing and casing.
Equipped with a unique viscous fluid governor rotation control mechanism, this tool precisely restricts the rotary speed to maintain low RPM spinning during jet washing. Low-speed stable rotation effectively concentrates jet energy and maximizes jet impact force acting on wellbore walls, significantly improving descaling and sediment removal treatment efficiency.
The tool body is designed with two independent jet port groups: lateral side ports and downward bottom ports. The lateral side jet ports generate circumferential reaction thrust to drive the tool to rotate continuously in full 360°, while simultaneously performing all-round descaling and wall cleaning on tubing and casing inner surfaces. The separate downward jet nozzle outputs vertical high-pressure jet flow to break up and flush compact sand sediment accumulated at the bottom of the wellbore. The built-in viscous fluid governor enables stable rotation speed control even when pumping high-viscosity treatment fluids downhole.
Two complete service grades are supplied to adapt diverse reservoir environments: STD standard grade for conventional sweet oil wells without hydrogen sulfide corrosive media; H₂S sour service grade manufactured with sulfur-resistant alloy to adapt high-H₂S corrosive sour gas well downhole working conditions.
The standardized product lineup covers outer diameter sizes ranging from 1-11/16" to 3-1/8", with matched compact overall make-up length specifications, equipped with standard 1" AMMT and 2-3/8" PAC bottom connection threads for universal compatibility with mainstream coiled tubing connectors and wellbore descaling downhole service tools. Custom outer diameter, jet port layout configuration and anti-sulfur passivation coatings are available upon customer technical drawing submission.
Complete Technical Specification Table
| PN Part Number | Outer Diameter OD | Make-Up Length | Working Condition Grade | Bottom Connection Thread |
|---|---|---|---|---|
| L2101690120 | 1-11/16" | 10" | STD Standard | 1" AMMT |
| L2102125120 | 2-1/8" | 13.6" | STD Standard | 1-1/2" AMMT |
| L2102875120 | 2-7/8" | 16.7" | STD Standard | 2-3/8" PAC |
| L2103125120 | 3-1/8" | 18.7" | STD Standard | 2-3/8" PAC |
| L2101690320 | 1-11/16" | 10" | H₂S Sour Service | 1" AMMT |
| L2102125320 | 2-1/8" | 13.6" | H₂S Sour Service | 1-1/2" AMMT |
| L2102875320 | 2-7/8" | 16.7" | H₂S Sour Service | 2-3/8" PAC |
| L2103125320 | 3-1/8" | 18.7" | H₂S Sour Service | 2-3/8" PAC |
Note: Custom outer diameter, jet port layout configuration, anti-sulfur passivation coatings and non-standard length low speed spinning jetting tools are available via engineering consultation.
Core Features & Advantages
Unique Viscous Fluid Governor Low-Speed Rotation Control Mechanism: Built-in precision fluid governor accurately limits rotary RPM, realizing stable low-speed spinning during jet washing, concentrating jet energy and maximizing jet impact force on wellbore walls to boost descaling efficiency.
High Jet Impact Force Low-Speed Spinning Design: Unlike high-speed rotary wash tools that disperse jet energy, controlled low RPM rotation keeps focused high-pressure jet streams against pipe inner walls, delivering stronger descaling performance for thick hard scale and heavy paraffin deposits.
Dual Independent Side & Downward Jet Port Layout: Lateral side ports provide reaction thrust for full 360° continuous rotation and circumferential wall cleaning; dedicated downward jet nozzle breaks and flushes compact sand sediment at well bottom, completing two cleaning functions in one single tool.
Stable Rotation Performance for High-Viscosity Treatment Fluids: The integrated viscous fluid governor maintains consistent controlled rotation speed under high-viscosity downhole fluid conditions, eliminating unstable spinning or stall risks in heavy treatment fluid environments.
Full 360° Bottom-Hole Rotary Cleaning Coverage: Continuous full circumferential low-speed spinning eliminates dead zones on tubing and casing inner walls, achieving uniform all-round descaling without missing wellbore sections.
Dual Working Condition Grade Configuration: STD standard version applies to conventional sweet oilfield non-corrosive working environments; H₂S sour service version adopts sulfur-resistant alloy base material and professional anti-sulfur passivation coating to resist hydrogen sulfide corrosion in harsh sour gas well conditions.
Full Outer Diameter Size Compatibility: Standard product series covers 1-11/16", 2-1/8", 2-7/8" and 3-1/8" outer diameter specifications, fully compatible with global mainstream medium-size coiled tubing assemblies for all high-viscosity fluid well descaling intervention demands.
Compact Short Make-Up Length Design: Optimized integral compact structural design shortens overall tool length, reducing the total length of coiled tubing tool strings and minimizing downhole tubing drag resistance during tripping operations.
Precision CNC High-Strength Alloy Manufacturing: Adopts precision CNC machining integral tool body and built-in viscous fluid governor components, featuring outstanding high-pressure jet abrasion resistance, erosion resistance and structural stability, extending long-term continuous low-speed rotary descaling service life.
Application Scenarios
1. Coiled tubing high-viscosity treatment fluid wellbore tubing & casing inner wall full-circumference heavy scale removal, paraffin cutting and compact sand sediment flushing low-tension rotary downhole intervention treatments
2. Conventional sweet crude oil well controlled low-speed rotary full 360° descaling service (STD standard service grade)
3. High-H₂S sour gas well corrosive environment coiled tubing high-viscosity fluid low RPM spinning descaling downhole construction operations (H₂S sour service grade)
4. Wellbore renovation projects requiring focused high-impact jet cleaning for thick hard scale deposits, suitable for low-speed spinning treatment with high-viscosity frac or washing fluids
5. Long-term continuous low-speed rotary jet descaling safety protection for coiled tubing bottom-hole assemblies in onshore and offshore oilfield high-viscosity fluid well intervention descaling projects
Standard Delivery Package
Complete low speed spinning jetting tool integral body pre-machined with built-in viscous fluid governor and dual side & downward jet port groups
Spare interchangeable jet nozzle kit for on-site jet flow size adjustment
Full factory inspection test report including high-pressure jet abrasion test, integral tensile load test and viscous fluid speed control stability performance test data
Product dimension drawing and official installation & operation instruction manual
Quality Warranty & After-Sales Service
Warranty Coverage: 12 months after factory shipment or 2000 cumulative working hours, whichever condition is reached first
Full factory inspection: Each finished low speed spinning jetting tool passes integral tensile load test, high-pressure jet abrasion test and viscous fluid rotation speed control calibration test before factory delivery
Free professional technical support: Our oilfield downhole tool engineering team provides tool string matching, outer diameter & jet port layout selection and working condition grade consultation free of charge
Long-term spare parts supply: All interchangeable jet nozzle wear accessories are stocked with competitive factory bulk pricing
Custom development service: Support custom outer diameters, jet nozzle layouts, bottom thread profiles, anti-corrosion coatings and special size low speed spinning jetting tools based on customer technical drawings
FAQ
Q1: What is the core function of a Low Speed Spinning Jetting Tool?
The Low Speed Spinning Jetting Tool is a viscosity-controlled low-RPM rotary coiled tubing descaling sub. It uses a built-in viscous fluid governor to limit spinning speed, concentrating jet energy to deliver maximum jet impact force on well walls. Side ports drive full 360° rotation for circumferential cleaning, while downward nozzles flush compact sand sediment at well bottom, ideal for descaling under high-viscosity downhole fluid conditions.
Q2: What three core structural advantages does this low speed spinning jetting tool own?
1. Unique viscous fluid governor control system, stably restricting rotation speed to low RPM, gathering jet power to greatly enhance descaling impact effect; 2. Dual side and downward jet port layout, completing full 360° circumferential pipe wall cleaning and compact well bottom sediment flushing in one tool; 3. Stable controllable low-speed spinning performance, maintaining consistent rotation without stall or unstable spinning when pumping high-viscosity treatment fluids downhole.
Q3: What outer diameter sizes do these low speed spinning jetting tools support?
Our standard production lineup fully covers outer diameters: 1-11/16", 2-1/8", 2-7/8" and 3-1/8". All models adopt universal 1" AMMT and 2-3/8" PAC bottom connection threads compatible with global mainstream coiled tubing connector assemblies.
Q4: What is the difference between STD standard grade and H₂S sour service grade?
STD standard grade is manufactured for conventional sweet oil wells without hydrogen sulfide corrosive fluid. H₂S sour service grade adopts sulfur-resistant alloy substrate and special anti-sulfur passivation coating to resist chemical corrosion in high-H₂S sour gas well environments.
Q5: What is the standard production lead time for bulk purchase orders?
All standard PN part numbers are kept in factory inventory, goods can be delivered within 7–15 working days. Customized low speed spinning jetting tools with special outer diameters or custom jet port layouts require 20–35 working days production cycle, subject to total order quantity.
Get Custom Datasheet & Factory Quote
We are a professional OEM & ODM manufacturer focused on full series coiled tubing downhole service tools, covering low speed spinning jetting tools, multiple points rotary wash tools, fast rotary wash tools, conical wash tools, multi-nozzle wash tools, bull nose wash tools, big ID large bore motorhead assemblies, heavy duty integrated motorhead assemblies, big ID hydraulic disconnects, dog latch interchangeable piston hydraulic disconnects, heavy duty high torsion hydraulic retrievable disconnects, mechanical hydraulic dual-action disconnects, mechanical adjustable shear tension disconnects, dual activated dual-action circulation valves, ball activated shear pin circulation valves, burst disc pressure circulation valves, double dart dual-stage sealing check valves, double flapper dual-stage sealing check valves, big ID single flapper check valves, grapple dimple composite connectors, grub screw heavy-duty connectors, double dimple-on connectors, single dimple-on connectors, double roll-on connectors, single roll-on connectors, internal grapple connectors, external grapple connectors, logging heads and tubing hangers. Every finished product undergoes strict factory tensile load, high-pressure jet abrasion and viscous fluid rotation stability calibration testing, with complete material inspection certification attached to each shipment. Please share your detailed technical requirements, including target outer diameter size, required jet port layout configuration, working environment (STD standard or H₂S sour service) and all customized specification demands. Our dedicated oilfield downhole tool engineering team will send complete detailed technical datasheets and competitive factory wholesale quotations within 24 business hours.
