Product Overview
The Simplified Disposable Coiled Tubing Barrier Plug is a compact single-use downhole pressure isolation barrier plug developed for velocity string running coiled tubing downhole construction operations.
This simplified coiled tubing plug is mounted at the bottom end of the coiled tubing string before running the velocity string into the wellbore; the plug blocks wellbore formation pressure from flowing upward into the inner passage of the coiled tubing during run-in operations, avoiding wellbore pressure backflow impact on surface coiled tubing equipment. The product adopts dual independent O-ring elastomer sealing design to form complete annular pressure isolation barrier, providing stable and reliable wellbore fluid and pressure blocking performance. The overall structure is compact and lightweight single-piece integrated molding design, no complex split assembly components, enabling fast and convenient on-site installation operation at the wellhead. After the velocity string running construction operation is fully completed, the simplified plug can be broken and circulated out of the wellbore through subsequent large-displacement circulating fluid, eliminating separate fishing and retrieval operation procedures. Four standard matching coiled tubing outer diameter sizes are supported: 1-1/4 inch, 1-1/2 inch, 1-3/4 inch and 2 inch, all models adopt STD standard working condition configuration.
The Simplified Disposable Coiled Tubing Barrier Plug 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 insert the simplified plug into the bottom inner bore of the coiled tubing string to complete installation and pressure isolation sealing, then run the coiled tubing string together with velocity string into the wellbore for running construction work, the dual O-ring structure continuously maintains pressure isolation barrier during the whole run-in process; after construction is finished, activate surface high-flow circulating pump to break the plug body and carry debris out of the wellbore via circulating fluid, no additional 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.
The standardized product lineup covers four standard matching coiled tubing outer diameter sizes of 1-1/4", 1-1/2", 1-3/4" and 2", corresponding fixed overall length dimensions for each CT OD, all models adopt STD standard working condition configuration; custom outer diameter matching size and dual O-ring sealing material customization are available upon customer technical drawing submission.
Complete Technical Specification Table
| PN Part Number | Matching Coiled Tubing Outer Diameter (CT OD) | Overall Plug Length | Working Condition Grade | Customization Support |
|---|---|---|---|---|
| L5331250120 | 1-1/4" | 2.875" | STD Standard | Contact Sales Reps |
| L5331500120 | 1-1/2" | 3" | STD Standard | Contact Sales Reps |
| L5331750120 | 1-3/4" | 3.25" | STD Standard | Contact Sales Reps |
| L5332000120 | 2" | 3.5" | STD Standard | Contact Sales Reps |
Note: Custom matching coiled tubing outer diameter sizes and dual O-ring sealing elastomer material modification are available via engineering consultation. All standard specifications adopt STD standard working condition configuration; four standard matching coiled tubing outer diameter sizes are provided: 1-1/4", 1-1/2", 1-3/4", 2", each specification has fixed corresponding plug overall length dimension.
Core Features & Advantages
Dual Independent O-Ring Elastomer Sealing Structure: Two separate elastomer O-ring sealing rings are arranged on the plug outer cylindrical surface, forming complete double-layer annular pressure isolation barrier to reliably prevent wellbore formation pressure and fluid from intruding into the coiled tubing inner bore, ensuring stable pressure blocking performance during whole velocity string run-in process.
Compact Lightweight Single-Piece Integrated Molding Design: The whole plug body is integrally molded into a single compact lightweight component, no complex split assembly parts, realizing fast and convenient one-step insertion installation operation at the wellhead, greatly shortening on-site preparation time.
Disposable Breakable Circulatable Design: After velocity string running construction is completed, the plug body can be broken and fully circulated out of the wellbore through subsequent large-displacement circulating fluid, eliminating separate downhole fishing and retrieval operation procedures and reducing post-construction operation workload.
Four Standard Matching Coiled Tubing Outer Diameter Size Series: Four mainstream standard coiled tubing outer diameter specifications are covered: 1-1/4", 1-1/2", 1-3/4", 2", with fixed corresponding overall length for each CT OD, fully matching conventional coiled tubing tool string inner bore size demands.
Ultra-Simplified Wellsite Operation Logic: The simplified disposable coiled tubing barrier plug has no complex internal movable friction components or spring energy storage assemblies, the operation flow is highly streamlined: only need to insert the plug into the bottom inner bore of the coiled tubing string to complete installation and pressure isolation sealing, then run the coiled tubing string together with velocity string into the wellbore for running construction work, the dual O-ring structure continuously maintains pressure isolation barrier during the whole run-in process; after construction is finished, activate surface high-flow circulating pump to break the plug body and carry debris out of the wellbore via circulating fluid, 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.
Low Routine Maintenance Design: The single-piece integrated molded plug body eliminates vulnerable split assembly movable wear parts; no post-operation maintenance procedures are required, as the plug is disposable and fully circulatable out of the wellbore after construction completion.
Application Scenarios
1. Coiled tubing velocity string running construction downhole wellbore pressure isolation heavy-load intervention treatments, temporary pressure barrier protection during velocity string run-in operation
2. Conventional sweet crude oilfield STD standard simplified disposable coiled tubing barrier plug velocity string running remedial workover service (STD Standard carbon steel working condition grade)
3. High-sulfur H₂S containing corrosive downhole wellbore fluid construction project velocity string running pressure isolation heavy workover projects requiring H₂S sour service anti-sulfide stress corrosion elastomer sealing material grade
4. Long-term continuous dual O-ring sealing pressure barrier load safety protection for coiled tubing velocity string running tool string assemblies in onshore and offshore oilfield coiled tubing remedial workover intervention projects
Standard Delivery Package
Complete single-piece integrated molded simplified disposable coiled tubing barrier plug (dual O-ring pre-installed)
Spare interchangeable dual O-ring elastomer sealing maintenance kit for on-site sealing ring replacement before plug installation
Full factory inspection test report including repeated dual O-ring sealing pressure barrier load fatigue resistance test, integral tensile load test, wellbore fluid compatibility calibration test data
Product dimension drawing and official installation & operation instruction manual, with detailed on-site coiled tubing velocity string running construction operation guidance, with clear confirmation reminder for matching coiled tubing outer diameter size selection according to different coiled tubing tool string inner bore dimension construction demands during order placement
Quality Warranty & After-Sales Service
Warranty Coverage: 12 months after factory shipment or 2000 cumulative dual O-ring sealing pressure barrier load cycles, whichever condition is reached first
Full factory inspection: Each finished single-piece integrated molded simplified disposable coiled tubing barrier plug passes integral tensile load test, repeated dual O-ring sealing pressure barrier load fatigue test, wellbore fluid compatibility calibration test before factory delivery
Free professional technical support: Our oilfield downhole tool engineering team provides coiled tubing velocity string running remedial workover tool string matching, matching coiled tubing outer diameter size selection and dual O-ring sealing elastomer material grade selection consultation free of charge
Long-term spare parts supply: All interchangeable dual O-ring elastomer sealing maintenance accessories are stocked with competitive factory bulk pricing
Custom development service: Support custom matching coiled tubing outer diameter sizes, customized dual O-ring sealing elastomer material grade specifications, plug overall length dimension modification and special size single-piece integrated molded simplified disposable coiled tubing barrier plugs based on customer technical drawings
FAQ
Q1: What is the core function of a Simplified Disposable Coiled Tubing Barrier Plug?
The Simplified Disposable Coiled Tubing Barrier Plug is a compact single-use downhole pressure isolation barrier plug developed for velocity string running coiled tubing downhole construction operations. This simplified coiled tubing plug is mounted at the bottom end of the coiled tubing string before running the velocity string into the wellbore; the plug blocks wellbore formation pressure from flowing upward into the inner passage of the coiled tubing during run-in operations, avoiding wellbore pressure backflow impact on surface coiled tubing equipment. The product adopts dual independent O-ring elastomer sealing design to form complete annular pressure isolation barrier, providing stable and reliable wellbore fluid and pressure blocking performance. The overall structure is compact and lightweight single-piece integrated molding design, no complex split assembly components, enabling fast and convenient on-site installation operation at the wellhead. After the velocity string running construction operation is fully completed, the simplified plug can be broken and circulated out of the wellbore through subsequent large-displacement circulating fluid, eliminating separate downhole fishing and retrieval operation procedures. Four standard matching coiled tubing outer diameter sizes are supported: 1-1/4 inch, 1-1/2 inch, 1-3/4 inch and 2 inch, all models adopt STD standard working condition configuration. No complex internal movable friction components or spring assemblies are equipped, operation flow is highly simplified, widely applied for coiled tubing velocity string running downhole pressure isolation construction operations.
Q2: What three core structural advantages does this Simplified Disposable Coiled Tubing Barrier Plug own?
1. Dual independent O-ring elastomer sealing structure, two separate elastomer O-ring sealing rings are arranged on the plug outer cylindrical surface, forming complete double-layer annular pressure isolation barrier to reliably prevent wellbore formation pressure and fluid from intruding into the coiled tubing inner bore, ensuring stable pressure blocking performance during whole velocity string run-in process; 2. Compact lightweight single-piece integrated molding design, the whole plug body is integrally molded into a single compact lightweight component, no complex split assembly parts, realizing fast and convenient one-step insertion installation operation at the wellhead, greatly shortening on-site preparation time; 3. Disposable breakable circulatable design & ultra-simplified wellsite operation logic, after velocity string running construction is completed, the plug body can be broken and fully circulated out of the wellbore through subsequent large-displacement circulating fluid, eliminating separate downhole fishing and retrieval operation procedures and reducing post-construction operation workload; the simplified disposable coiled tubing barrier plug has no complex internal movable friction components or spring energy storage assemblies, only need to insert the plug into the bottom inner bore of the coiled tubing string to complete installation and pressure isolation sealing, then run the coiled tubing string together with velocity string into the wellbore for running construction work, the dual O-ring structure continuously maintains pressure isolation barrier during the whole run-in process; after construction is finished, activate surface high-flow circulating pump to break the plug body and carry debris out of the wellbore via circulating fluid, 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; the product also features four complete standard matching coiled tubing outer diameter size series and single-piece integrated molded plug body zero post-operation maintenance design to further expand applicable construction scope and reduce post-construction operation workload.
Q3: What matching coiled tubing outer diameter sizes and configurable options do these Simplified Disposable Coiled Tubing Barrier Plugs support?
Our standard applicable matching coiled tubing outer diameter size range covers 1-1/4", 1-1/2", 1-3/4", 2". Each matching size supports independent dual O-ring sealing elastomer material grade customization for free selection: standard conventional elastomer / H₂S sour service anti-sulfide stress corrosion elastomer. All models support custom plug overall length dimension modification upon customer request. No independent working condition material grade versions are divided for each matching size, all models adopt unified STD standard working condition configuration. Custom matching coiled tubing outer diameter sizes and dual O-ring sealing elastomer material grade specifications are available upon customer downhole wellbore fluid H₂S concentration corrosive environment construction 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 single-piece integrated molded simplified disposable coiled tubing barrier plugs with special matching coiled tubing outer diameter sizes or customized dual O-ring sealing elastomer material grade specifications, plug overall length dimension modifications 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 velocity string running downhole pressure isolation remedial workover service tools, covering single-piece integrated molded simplified disposable coiled tubing barrier plugs, hydraulic remote control wellhead suspension hangers, bypass flow divider valves, hydraulic pulse vibration shock exciters, thru-tubing hydraulic retractable blade underreamers, tapered pear conical pilot milling shoes, concave recessed milling shoes, five-blade five-wing milling shoes, flat bottom milling shoes, combination flat blade milling shoes, muncher multi-cutting milling shoes, convex nose pilot milling shoes, bi-directional reciprocating impact hammers, coiled tubing positive displacement drill motors, downhole gas-liquid separators, impact hammers, magnetic fishing rods, magnetic junk retrieval magnets, 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 dual O-ring sealing pressure barrier load fatigue, wellbore fluid compatibility calibration testing, with complete material inspection certification attached to each shipment. Please share your detailed technical requirements, including target matching coiled tubing outer diameter size, required dual O-ring sealing elastomer material grade (standard / H₂S sour service anti-corrosion), downhole wellbore fluid H₂S concentration corrosive environment 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 coiled tubing velocity string running construction operation guidance, with clear confirmation reminder for matching coiled tubing outer diameter size selection according to different coiled tubing tool string inner bore dimension construction demands during order placement.
