Product Overview
The Venturi Junk Basket is a venturi vacuum suction type downhole cuttings and junk debris retrieval basket specially developed for coiled tubing downhole wellbore cleanout and loose junk salvage workover operations.
This venturi suction junk basket adopts mature venturi negative pressure vacuum generation working principle: during wellbore cleanout construction, working fluid is pumped through the inner bore of coiled tubing string and ejected at high speed from multiple precision nozzles built into the tool’s venturi chamber; the high-speed jet fluid creates stable negative pressure vacuum inside the sealed venturi chamber. Under the action of vacuum differential pressure, wellbore fluid mixed with bottom-hole loose metal cuttings, formation rock debris and small junk fragments is continuously drawn upward from the well bottom into the venturi junk basket main body. After entering the tool, debris-laden mixed fluid flows through the built-in internal precision filter screen assembly; solid-phase cuttings, rock debris and junk particles are physically intercepted and locked inside the tool’s sealed internal catch storage chamber, while clean filtered fluid flows through the venturi tubes back into the venturi chamber to complete cyclic fluid circulation, realizing continuous automatic suction, filtration and storage of downhole loose debris and junk.
The Venturi Junk Basket supports three flexible configurable optimization designs to adapt to variable downhole construction conditions:
Interchangeable nozzle size specifications: multiple different inner diameter nozzle assemblies can be freely replaced, adjusting the flow velocity of ejected fluid to change venturi vacuum suction strength, matching different well depth and debris accumulation thickness demands;
Adjustable filter screen gap: the spacing between filter screen metal wires can be precisely adjusted to adapt to interception requirements of different dimension debris particles, avoiding screen blockage or fine debris leakage risks;
Optional detachable extension tube: independent matching extension tubes can be connected to the lower end of the main venturi junk basket body on demand, expanding the volume of the internal catch storage chamber to increase the total storage capacity of cuttings and junk, suitable for construction scenarios with large-scale wellbore debris accumulation.
The Venturi Junk Basket has no complex internal movable friction components, spring energy storage assemblies or differential pressure release mechanisms, with extremely simplified wellsite operation flow and low maintenance cost; construction crews only need to maintain continuous pumping of circulating working fluid to realize automatic venturi vacuum suction, debris filtering and solid junk storage circulation, without additional auxiliary operation steps such as drop ball delivery or shear pin impact jarring.
The Venturi Junk Basket is widely applicable to all coiled tubing downhole workover construction scenarios involving wellbore cleanout and loose junk debris salvage recovery, including loose drilling cuttings, perforating gun metal fragments, formation collapse rock debris, small dropped downhole tool fragments and other loose solid-phase junk components.
The standardized product lineup covers outer diameter sizes ranging from 1-11/16" to 3-1/8", with unified fixed closed make-up length specifications for standard main basket body, equipped with standard 1"AMMT, 1-1/2"AMMT and 2-3/8"PAC bottom connection threads for universal compatibility with mainstream coiled tubing connectors and other downhole wellbore cleanout workover service tools. Custom outer diameter, venturi nozzle inner diameter specification, filter screen gap range and extension tube length customization are available upon customer technical drawing submission; extension tubes need to be separately ordered and specified during procurement.
Complete Technical Specification Table
| PN Part Number | Outer Diameter OD | Inner Diameter ID | Make-Up Length (Standard Main Body) | Working Condition Grade | Bottom Connection Thread |
|---|---|---|---|---|---|
| L3101690120 | 1-11/16" | 0.38" | 46.7" | Standard | 1" AMMT |
| L3102125120 | 2-1/8" | 0.45" | 46.7" | Standard | 1-1/2" AMMT |
| L3102875120 | 2-7/8" | 0.5" | 52.7" | Standard | 2-3/8" PAC |
| L3103125120 | 3-1/8" | 0.55" | 57.7" | Standard | 2-3/8" PAC |
Note: Custom outer diameter, customized venturi nozzle inner diameter, filter screen gap range and extension tube length modification venturi junk baskets are available via engineering consultation. Extension tubes are separate matching parts and must be clearly specified during order placement if required.
Core Features & Advantages
Mature Venturi Negative Pressure Vacuum Suction Working Principle: High-speed fluid ejection from built-in venturi chamber nozzles generates stable negative pressure vacuum effect, continuously draws debris-carrying fluid from well bottom into the tool for automatic solid-liquid separation of cuttings and circulating fluid, realizing continuous cyclic debris suction and storage without repeated tripping operations, greatly improving wellbore cleanout construction efficiency.
Three Flexible Modular Configurable Optimization Designs:
Interchangeable venturi nozzle size options: multiple different inner diameter nozzle assemblies can be freely replaced, adjusting jet fluid flow velocity to flexibly change venturi vacuum suction intensity, matching different well depth and debris accumulation thickness construction demands;
Precisely adjustable filter screen gap: the spacing between filter screen metal wires can be fine-tuned to adapt to interception requirements of different dimension debris particles, effectively avoiding two common failure risks of filter screen blockage and fine debris leakage;
Optional detachable extension tube matching: independent extension tubes can be connected to the lower end of the main basket body on demand to expand the volume of the internal catch storage chamber, increasing the total storage capacity of cuttings and junk, suitable for construction scenarios with large-scale wellbore debris accumulation.
Built-In Internal Precision Filter Screen Solid-Liquid Separation Structure: After debris-laden mixed fluid enters the tool, the high-precision filter screen assembly physically intercepts all solid-phase cuttings, rock debris and junk particles, all solid waste is completely locked inside the sealed internal catch storage chamber and carried to the ground together with the tool, no secondary debris falling back to the well bottom occurs, ensuring thorough wellbore cleanout effect.
Ultra-Simplified Wellsite Operation Logic: The venturi junk basket has no complex internal movable friction components, spring energy storage assemblies or differential pressure release mechanisms, the operation flow is highly streamlined: only maintain continuous pumping of circulating working fluid to realize automatic venturi vacuum suction, debris filtering and solid junk storage closed circulation, no complex auxiliary operation steps such as drop ball delivery or shear pin impact jarring are needed, shortening wellsite operation time and reducing human error risks.
Low Routine Maintenance Design: The main basket body and venturi chamber adopt integrated integral structural layout, no split assembly movable friction parts prone to wear and failure; after each wellbore cleanout operation, only simple internal catch chamber debris cleaning, venturi nozzle flow passage blockage flushing and filter screen gap inspection are required, no complex disassembly or internal part replacement maintenance procedures, greatly reducing daily maintenance labor and spare parts inventory cost.
Full Outer Diameter Size Compatibility: Standard product series covers 1-11/16", 2-1/8", 2-1/2", 2-7/8" and 3-1/8" outer diameter specifications, fully compatible with global mainstream medium-size coiled tubing assemblies for all downhole wellbore cleanout and loose junk debris salvage recovery intervention demands.
Multi-Type Standard Thread Compatibility: All product models are equipped with universal 1"AMMT, 1-1/2"AMMT and 2-3/8"PAC bottom connection threads, realizing seamless assembly with global mainstream coiled tubing bottom-hole assemblies and other supporting downhole wellbore cleanout workover tools without extra conversion subs.
Precision CNC High-Strength Alloy Steel Manufacturing: Adopts precision CNC full-body machining of high-strength wear-resistant alloy steel blank, integral one-piece forming process for venturi chamber and main basket body, wear-resistant corrosion-resistant alloy material for venturi nozzles and filter screen assembly, featuring outstanding circulating fluid erosion resistance, repeated vacuum suction cycle fatigue resistance and structural stability, extending long-term continuous downhole wellbore cleanout and loose junk debris salvage retrieval service life for coiled tubing workover operations.
Application Scenarios
1. Coiled tubing downhole wellbore cleanout and loose solid-phase junk debris salvage recovery heavy-load intervention treatments, including loose drilling cuttings, perforating gun metal fragments, formation collapse rock debris, small dropped downhole tool fragments and other loose solid junk component salvage construction operations
2. Conventional sweet crude oilfield venturi vacuum suction integral construction venturi junk basket wellbore cleanout loose cuttings and junk debris salvage workover service (STD Standard working condition grade)
3. Downhole wellbore cleanout and loose junk debris salvage heavy workover projects requiring interchangeable venturi nozzle suction adjustment, adjustable filter screen debris interception gap and expandable storage chamber via detachable extension tube
4. Long-term continuous repeated venturi vacuum suction cycle safety protection for coiled tubing bottom-hole assemblies in onshore and offshore oilfield downhole wellbore cleanout and loose junk debris salvage recovery heavy workover intervention projects
Standard Delivery Package
Complete venturi junk basket standard main body integral pre-assembled unit including venturi chamber, built-in interchangeable venturi nozzle assembly, internal adjustable-gap filter screen assembly and sealed internal catch storage chamber
Spare interchangeable venturi nozzle kit with multiple inner diameter size specifications for on-site vacuum suction strength adjustment configuration
Spare adjustable-gap filter screen maintenance kit for later debris interception gap fine-tuning and wear replacement
Full factory inspection test report including repeated venturi vacuum suction cycle fatigue resistance test, integral tensile load test, venturi nozzle jet flow calibration test, filter screen debris interception sealing stability test and internal catch chamber debris storage locking reliability performance test data
Product dimension drawing and official installation & operation instruction manual, with detailed on-site venturi vacuum suction wellbore cleanout operation guidance, with clear reminder to separately specify extension tube demand and required extension tube length during order placement
Quality Warranty & After-Sales Service
Warranty Coverage: 12 months after factory shipment or 2000 cumulative venturi vacuum suction cycle operation cycles, whichever condition is reached first
Full factory inspection: Each finished venturi junk basket passes integral tensile load test, repeated venturi vacuum suction cycle fatigue test, venturi nozzle jet flow calibration test, filter screen debris interception sealing stability test and internal catch chamber debris storage locking reliability performance test before factory delivery
Free professional technical support: Our oilfield downhole tool engineering team provides coiled tubing downhole wellbore cleanout and loose junk debris salvage heavy workover tool string matching, outer diameter & venturi nozzle inner diameter size selection, filter screen gap adjustment range and extension tube length customization consultation free of charge
Long-term spare parts supply: All interchangeable venturi nozzle wear accessories and adjustable-gap filter screen assemblies are stocked with competitive factory bulk pricing
Custom development service: Support custom outer diameters, customized venturi nozzle inner diameter sizes, filter screen gap adjustment ranges, extension tube length modification, bottom thread profiles and special size venturi junk baskets based on customer technical drawings
FAQ
Q1: What is the core function of a Venturi Junk Basket?
The Venturi Junk Basket is a venturi vacuum suction type downhole cuttings and junk debris retrieval basket dedicated to coiled tubing downhole wellbore cleanout and loose junk salvage workover operations. It adopts mature venturi negative pressure vacuum generation working principle: high-speed fluid ejected from built-in venturi chamber nozzles creates stable negative pressure vacuum effect, continuously draws debris-carrying fluid from well bottom into the tool, internal precision filter screen separates solid cuttings/junk from circulating fluid, all solid waste is locked inside sealed internal catch storage chamber and carried to surface together with the tool. Three flexible configurable designs are supported: interchangeable venturi nozzle sizes for adjustable suction strength, adjustable filter screen gap to match different debris particle dimensions, optional detachable extension tubes to expand internal storage chamber volume. No complex internal movable friction components or spring assemblies are equipped, operation flow is highly simplified, widely applied for coiled tubing downhole wellbore cleanout and salvage of loose drilling cuttings, perforating gun fragments, formation rock debris and other loose solid-phase junk components.
Q2: What three core structural advantages does this Venturi Junk Basket own?
1. Mature Venturi Negative Pressure Vacuum Suction Working Principle, high-speed jet fluid from venturi chamber built-in nozzles generates stable negative pressure vacuum effect, continuously draws debris-laden fluid from well bottom into the tool to realize automatic solid-liquid separation of cuttings and circulating fluid, forming closed cyclic debris suction and storage without repeated tripping operations, greatly improving wellbore cleanout construction efficiency; 2. Three Flexible Modular Configurable Optimization Designs: interchangeable venturi nozzle size options for flexible vacuum suction intensity adjustment matching different well depth and debris accumulation thickness construction demands; precisely adjustable filter screen gap to adapt to interception requirements of different dimension debris particles, effectively avoiding two common failure risks of filter screen blockage and fine debris leakage; optional detachable extension tube matching to expand internal catch storage chamber volume and increase total cuttings/junk storage capacity for construction scenarios with large-scale wellbore debris accumulation; 3. Ultra-Simplified Wellsite Operation Logic & Low Routine Maintenance Design: no complex internal movable friction components, spring energy storage assemblies or differential pressure release mechanisms, only continuous pumping of circulating working fluid is required to realize automatic venturi vacuum suction, debris filtering and solid junk storage closed circulation, no complex auxiliary operation steps such as drop ball delivery or shear pin impact jarring are needed to shorten wellsite operation time and reduce human error risks; integral one-piece main basket body layout eliminates split assembly movable friction parts prone to wear and failure, only simple internal debris cleaning, nozzle flow passage flushing and filter screen gap inspection are required after each operation without complex disassembly maintenance procedures, greatly reducing daily maintenance labor and spare parts inventory cost.
Q3: What outer diameter sizes and configurable options do these Venturi Junk Baskets support?
Our standard production lineup fully covers outer diameters: 1-11/16", 2-1/8", 2-1/2", 2-7/8" and 3-1/8". All models adopt universal 1"AMMT, 1-1/2"AMMT and 2-3/8"PAC bottom connection threads compatible with global mainstream coiled tubing connector assemblies and other supporting downhole wellbore cleanout workover tools. Three flexible configurable options are available for all standard OD models: interchangeable venturi nozzle inner diameter sizes for adjustable vacuum suction strength, adjustable filter screen debris interception gap range, and detachable extension tubes (extension tubes are separate matching parts and must be clearly specified with required length during order placement). Custom venturi nozzle inner diameter, filter screen gap range and extension tube length specifications are available upon customer construction condition demands.
Q4: 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 venturi junk baskets with special outer diameters or customized venturi nozzle inner diameter sizes, filter screen gap adjustment ranges & extension tube length specifications require 20–35 working days production cycle, subject to total order quantity and customization scope.
Get Custom Datasheet & Factory Quote
We are a professional OEM & ODM manufacturer focused on full series coiled tubing heavy workover and washing downhole service tools, covering venturi junk baskets, flow activated releasable fishing overshots, flow activated releasable fishing spears, flow activated releasable JDC running/pulling tools, flow activated releasable GS fishing tools, bi-direction mechanical accelerators, bi-direction hydraulic accelerators, bi-direction hydraulic jars, up-stroke hydraulic jars, bi-direction mechanical jars, up-stroke mechanical jars, wireline grabs, wireline spears and all other supporting downhole fishing, jarring, anchoring and washing service tools. Every finished product undergoes strict factory tensile load, repeated venturi vacuum suction cycle fatigue, venturi nozzle jet flow calibration, filter screen debris interception sealing stability and internal catch chamber debris storage locking reliability performance testing, with complete material inspection certification attached to each shipment. Please share your detailed technical requirements, including target outer diameter size, required venturi nozzle inner diameter specification, filter screen gap adjustment range, extension tube demand and required extension tube length (if extension tube needed), matched target well depth and debris accumulation thickness construction conditions, working environment 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, and provide professional on-site venturi vacuum suction wellbore cleanout operation guidance, with clear confirmation reminder for extension tube demand and required extension tube length during order placement.
