Product Overview
The Retrievable Pump Plug full recoverable coiled tubing velocity string running downhole barrier plug is a complete recyclable downhole flow barrier tool developed for coiled tubing velocity string installation completion construction operations.
This retrievable pump plug is installed at the bottom end of the coiled tubing string before running the velocity string into the wellbore; during run-in, the internal flow passage allows continuous pumping fluid down the coiled tubing to maintain well circulation; after the coiled tubing string is lowered to the predetermined underground suspension depth, a sealing ball is dropped from the surface pipeline to land and seat on the plug internal ball seat; surface pumping pressure is raised to reach the preset shear pin breaking threshold to rupture the internal shear piston. A built-in integrated piston recycling chamber is arranged at the bottom of the plug body, which fully traps and contains the broken piston fragment after shear operation, completely eliminating loose solid debris falling into the downhole annulus and avoiding subsequent downhole tool jamming risks. An independent internal dart capture receiving chamber is pre-installed inside the plug body above the piston recycling bin; after the primary velocity string installation construction work is fully completed and the coiled tubing string needs to be recovered, a throwing dart can be pumped down from the surface, the dart is fully captured by the internal dart receiver to form a secondary tubing bore isolation barrier, completely isolating wellbore annulus fluid pressure to facilitate safe full coiled tubing lifting and recovery operation. The shear pin breaking pressure threshold can be freely customized and adjusted according to different downhole well pressure construction environment requirements; all standard specifications adopt STD standard working condition configuration, equipped with standard Roll-On type connecting thread, four matching coiled tubing outer diameter sizes are available: 1-1/4 inch, 1-1/2 inch, 1-3/4 inch and 2 inch, each CT OD corresponds to fixed overall make-up length dimension.
The Retrievable Pump 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 connect the retrievable pump plug to the bottom end of the coiled tubing string via Roll-On connector, run the whole tool string down along the tubing inner wall to the predetermined underground suspension depth, continuously pump fluid downward through the plug internal flow passage during run-in; after reaching target depth, drop sealing ball from surface, raise pumping pressure to shear the internal piston, and the broken piston piece is fully trapped by the built-in recycling bin inside the plug, no loose debris falls into wellbore; after completion of primary velocity string installation construction work and coiled tubing recovery is required, pump throwing dart down from surface to be captured by the internal dart receiving chamber to form secondary tubing bore isolation barrier, then lift the coiled tubing string together with the whole retrievable pump plug out of the wellbore to finish full recovery operation, 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", each CT OD corresponds to fixed overall make-up length dimension, all models adopt STD standard working condition configuration, unified standard Roll-On type connecting thread; custom shear pin breaking pressure threshold, matching coiled tubing outer diameter size and internal dart receiver structural form customization are available upon customer technical drawing submission.
Complete Technical Specification Table
| PN Part Number | Matching Coiled Tubing Outer Diameter (CT OD) | Inner Bore ID | Make-Up Overall Length | Working Condition Grade | Standard Connection Thread |
|---|---|---|---|---|---|
| L5141250120 | 1-1/4" | 0.59" | 9" | STD Standard | Roll-On Connector |
| L5141500120 | 1-1/2" | 0.83" | 10.8" | STD Standard | Roll-On Connector |
| L5141750120 | 1-3/4" | 0.9" | 11.5" | STD Standard | Roll-On Connector |
| L5142000120 | 2" | 11.9" | 13.2" | STD Standard | Roll-On Connector |
Note: Custom matching coiled tubing outer diameter sizes, custom shear pin breaking pressure threshold specifications and internal dart receiver structural form modifications are available via engineering consultation. All standard specifications adopt STD standard working condition configuration, unified standard Roll-On type connecting thread; four standard matching coiled tubing outer diameter sizes are provided: 1-1/4", 1-1/2", 1-3/4", 2", each CT OD corresponds to fixed overall make-up length dimension.
Core Features & Advantages
Built-In Integrated Piston Recycling Chamber Design: A sealed piston recycling bin is pre-fabricated at the bottom of the plug body, after shear pin ruptures and internal piston breaks off under set pressure, the recycling bin completely contains and traps the broken piston fragment, zero loose solid debris is left falling into the downhole annulus, eliminating subsequent downhole tool jamming and sticking failure risks.
Adjustable Shear Pin Breaking Pressure Threshold Design: The shear pin shear failure threshold can be freely customized and adjusted to match different downhole well pressure construction environment requirements, realizing controllable piston shear action after reaching predetermined target underground suspension depth.
Internal Dart Capture Receiving Chamber Design for Secondary Isolation: An independent dart receiving chamber is pre-installed inside the plug body above the piston recycling bin, which can fully capture the throwing dart pumped down from surface after primary construction work is finished, forming a secondary tubing bore isolation barrier to completely isolate wellbore annulus fluid pressure for safe full coiled tubing lifting and recovery operation.
Standard Roll-On Type Connecting Thread Configuration Design: All standard models adopt unified standard Roll-On type connecting thread, which is fully matched with mainstream coiled tubing bottom connector specifications, realizing fast and convenient on-site tool string assembly and disassembly operation.
Ultra-Simplified Wellsite Operation Logic: The retrievable pump plug has no complex internal movable friction components, spring energy storage assemblies or differential pressure release mechanisms, the operation flow is highly streamlined: connect the retrievable pump plug to coiled tubing bottom via Roll-On connector, run the tool string down to the predetermined underground suspension depth, continuously pump fluid downward through the plug internal flow passage during run-in; after reaching target depth, drop sealing ball from surface, raise pumping pressure to shear the internal piston, and the broken piston piece is fully trapped by the built-in recycling bin inside the plug, no loose debris falls into wellbore; after completion of primary velocity string installation construction work and coiled tubing recovery is required, pump throwing dart down from surface to be captured by the internal dart receiving chamber to form secondary tubing bore isolation barrier, then lift the coiled tubing string together with the whole retrievable pump plug out of the wellbore to finish full recovery operation, 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 integral cylindrical alloy steel plug body eliminates vulnerable split assembly movable wear parts; after each downhole velocity string installation construction operation, only simple surface circulating fluid debris cleaning and internal piston recycling bin & dart receiving chamber debris flushing inspection are required, no complex disassembly, internal piston or dart receiver component replacement or spring preload adjustment maintenance procedures, greatly reducing daily maintenance labor and spare parts inventory cost.
Application Scenarios
1. Coiled tubing velocity string installation completion construction heavy-load intervention treatments, including downhole pump-in fluid during velocity string run-in, built-in piston recycling to trap broken shear piston after target depth shear operation, and secondary tubing bore isolation for later full coiled tubing recovery remedial workover construction operations
2. Conventional sweet crude oilfield STD standard full retrievable pump plug velocity string installation completion construction service (STD Standard carbon steel working condition grade)
3. High-sulfur H₂S containing corrosive downhole wellbore fluid construction project velocity string installation completion construction heavy workover projects requiring H₂S sour service anti-sulfide stress corrosion alloy material grade
4. Long-term continuous piston recycling & dart capture secondary isolation load safety protection for downhole velocity string installation plug assemblies in onshore and offshore oilfield coiled tubing remedial workover intervention projects
Standard Delivery Package
Complete full retrievable coiled tubing velocity string running pump plug integral cylindrical pre-assembled unit including main plug body, internal flow passage, built-in sealed piston recycling bin, adjustable shear pin assembly and independent internal dart capture receiving chamber
Spare interchangeable shear pin maintenance kit for on-site shear pin breaking pressure threshold adjustment and worn shear pin replacement
Full factory inspection test report including repeated piston recycling bin debris trapping load fatigue resistance test, integral tensile load test, different shear pin breaking pressure threshold shear performance calibration test data
Product dimension drawing and official installation & operation instruction manual, with detailed on-site coiled tubing velocity string installation completion construction operation guidance, with clear confirmation reminder for shear pin breaking pressure threshold selection according to different downhole well pressure construction environment demands during order placement
Quality Warranty & After-Sales Service
Warranty Coverage: 12 months after factory shipment or 2000 cumulative piston recycling & dart capture load cycles, whichever condition is reached first
Full factory inspection: Each finished full retrievable coiled tubing velocity string running pump plug passes integral tensile load test, repeated piston recycling bin debris trapping load fatigue test, different shear pin breaking pressure threshold shear performance calibration test before factory delivery
Free professional technical support: Our oilfield downhole tool engineering team provides coiled tubing velocity string installation completion construction remedial workover tool string matching, matching coiled tubing outer diameter size & shear pin breaking pressure threshold selection consultation free of charge
Long-term spare parts supply: All interchangeable shear pin wear maintenance accessories are stocked with competitive factory bulk pricing
Custom development service: Support custom matching coiled tubing outer diameter sizes, customized shear pin breaking pressure threshold specifications, internal dart receiver structural form adjustment, base material corrosion resistance grade modification and special size full retrievable coiled tubing velocity string running pump plugs based on customer technical drawings
FAQ
Q1: What is the core function of a Retrievable Pump Plug Full Recoverable Coiled Tubing Velocity String Running Downhole Barrier Plug?
The Retrievable Pump Plug full recoverable coiled tubing velocity string running downhole barrier plug is a complete recyclable downhole flow barrier tool developed for coiled tubing velocity string installation completion construction operations. This retrievable pump plug is installed at the bottom end of the coiled tubing string before running the velocity string into the wellbore; during run-in, the internal flow passage allows continuous pumping fluid down the coiled tubing to maintain well circulation; after the coiled tubing string is lowered to the predetermined underground suspension depth, a sealing ball is dropped from the surface pipeline to land and seat on the plug internal ball seat; surface pumping pressure is raised to reach the preset shear pin breaking threshold to rupture the internal shear piston. A built-in integrated piston recycling chamber is arranged at the bottom of the plug body, which fully traps and contains the broken piston fragment after shear operation, completely eliminating loose solid debris falling into the downhole annulus and avoiding subsequent downhole tool jamming risks. An independent internal dart capture receiving chamber is pre-installed inside the plug body above the piston recycling bin; after the primary velocity string installation construction work is fully completed and the coiled tubing string needs to be recovered, a throwing dart can be pumped down from the surface, the dart is fully captured by the internal dart receiver to form a secondary tubing bore isolation barrier, completely isolating wellbore annulus fluid pressure to facilitate safe full coiled tubing lifting and recovery operation. The shear pin breaking pressure threshold can be freely customized and adjusted according to different downhole well pressure construction environment requirements; all standard specifications adopt STD standard working condition configuration, equipped with standard Roll-On type connecting thread, four matching coiled tubing outer diameter sizes are available: 1-1/4 inch, 1-1/2 inch, 1-3/4 inch and 2 inch. No complex internal movable friction components or spring assemblies are equipped, operation flow is highly simplified, widely applied for downhole velocity string installation completion construction heavy-load intervention treatments, including downhole pump-in fluid during velocity string run-in, built-in piston recycling to trap broken shear piston after target depth shear operation, and secondary tubing bore isolation for later full coiled tubing recovery remedial workover construction operations.
Q2: What three core structural advantages does this Retrievable Pump Plug Full Recoverable Coiled Tubing Velocity String Running Downhole Barrier Plug own?
1. Built-in integrated piston recycling chamber design, a sealed piston recycling bin is pre-fabricated at the bottom of the plug body, after shear pin ruptures and internal piston breaks off under set pressure, the recycling bin completely contains and traps the broken piston fragment, zero loose solid debris is left falling into the downhole annulus, eliminating subsequent downhole tool jamming and sticking failure risks; 2. Adjustable shear pin breaking pressure threshold design, the shear pin shear failure threshold can be freely customized and adjusted to match different downhole well pressure construction environment requirements, realizing controllable piston shear action after reaching predetermined target underground suspension depth; 3. Internal dart capture receiving chamber design for secondary isolation & ultra-simplified wellsite operation logic, an independent dart receiving chamber is pre-installed inside the plug body above the piston recycling bin, which can fully capture the throwing dart pumped down from surface after primary construction work is finished, forming a secondary tubing bore isolation barrier to completely isolate wellbore annulus fluid pressure for safe full coiled tubing lifting and recovery operation; the retrievable pump plug has no complex internal movable friction components, spring energy storage assemblies or differential pressure release mechanisms, only need to connect the retrievable pump plug to coiled tubing bottom via Roll-On connector, run the tool string down to the predetermined underground suspension depth, continuously pump fluid downward through the plug internal flow passage during run-in; after reaching target depth, drop sealing ball from surface, raise pumping pressure to shear the internal piston, and the broken piston piece is fully trapped by the built-in recycling bin inside the plug, no loose debris falls into wellbore; after completion of primary velocity string installation construction work and coiled tubing recovery is required, pump throwing dart down from surface to be captured by the internal dart receiving chamber to form secondary tubing bore isolation barrier, then lift the coiled tubing string together with the whole retrievable pump plug out of the wellbore to finish full recovery operation, 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 integral cylindrical alloy steel plug body low maintenance design to further expand applicable construction scope and reduce post-operation maintenance workload.
Q3: What matching coiled tubing outer diameter sizes and configurable options do these Retrievable Pump Plug Full Recoverable Coiled Tubing Velocity String Running Downhole 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 CT OD size supports two independent configurable options for free matching selection: adjustable shear pin breaking pressure threshold, internal dart capture receiving chamber structural form. All models support custom base material corrosion resistance grade specifications upon customer request. The unified standard Roll-On type connecting thread is adopted for all standard models, four standard matching coiled tubing outer diameter sizes correspond to fixed overall make-up length dimensions respectively. Two independent working condition material grade versions are also optional for each CT OD size: STD standard carbon steel working condition grade and H₂S sour service high-corrosion-resistant alloy working condition grade. Custom shear pin breaking pressure threshold specifications and internal dart receiver structural form adjustments 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 full retrievable coiled tubing velocity string running pump plugs with special matching coiled tubing outer diameter sizes or customized shear pin breaking pressure threshold specifications, internal dart receiver structural form adjustments, base material corrosion resistance grade 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 downhole velocity string installation completion construction heavy-load intervention treatment service tools, covering full retrievable coiled tubing velocity string running pump 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 piston recycling bin debris trapping load fatigue, different shear pin breaking pressure threshold shear performance 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 shear pin breaking pressure threshold, 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 downhole velocity string installation completion construction operation guidance, with clear confirmation reminder for shear pin breaking pressure threshold selection according to different downhole well pressure construction environment demands during order placement.
